lib/scanner: Use standard adler32 when we don't need rolling (#5556)

* lib/scanner: Use standard adler32 when we don't need rolling

Seems the rolling adler32 implementation is super slow when executed on large blocks, even tho I can't explain why.

BenchmarkFind1MFile-16    				     100	  18991667 ns/op	  55.21 MB/s	  398844 B/op	      20 allocs/op
BenchmarkBlock/adler32-131072/#00-16     		     200	   9726519 ns/op	1078.06 MB/s	 2654936 B/op	     163 allocs/op
BenchmarkBlock/bozo32-131072/#00-16      		      20	  73435540 ns/op	 142.79 MB/s	 2654928 B/op	     163 allocs/op
BenchmarkBlock/buzhash32-131072/#00-16   		      20	  61482005 ns/op	 170.55 MB/s	 2654928 B/op	     163 allocs/op
BenchmarkBlock/buzhash64-131072/#00-16   		      20	  61673660 ns/op	 170.02 MB/s	 2654928 B/op	     163 allocs/op
BenchmarkBlock/vanilla-adler32-131072/#00-16         	     300	   4377307 ns/op	2395.48 MB/s	 2654935 B/op	     163 allocs/op
BenchmarkBlock/adler32-16777216/#00-16               	       2	 544010100 ns/op	  19.27 MB/s	   65624 B/op	       5 allocs/op
BenchmarkBlock/bozo32-16777216/#00-16                	       1	4678108500 ns/op	   2.24 MB/s	51970144 B/op	      24 allocs/op
BenchmarkBlock/buzhash32-16777216/#00-16             	       1	3880370700 ns/op	   2.70 MB/s	51970144 B/op	      24 allocs/op
BenchmarkBlock/buzhash64-16777216/#00-16             	       1	3875911700 ns/op	   2.71 MB/s	51970144 B/op	      24 allocs/op
BenchmarkBlock/vanilla-adler32-16777216/#00-16       	     300	   4010279 ns/op	2614.72 MB/s	   65624 B/op	       5 allocs/op
BenchmarkRoll/adler32-131072/#00-16                  	    2000	    974279 ns/op	 134.53 MB/s	     270 B/op	       0 allocs/op
BenchmarkRoll/bozo32-131072/#00-16                   	    2000	    791770 ns/op	 165.54 MB/s	     270 B/op	       0 allocs/op
BenchmarkRoll/buzhash32-131072/#00-16                	    2000	    917409 ns/op	 142.87 MB/s	     270 B/op	       0 allocs/op
BenchmarkRoll/buzhash64-131072/#00-16                	    2000	    881125 ns/op	 148.76 MB/s	     270 B/op	       0 allocs/op
BenchmarkRoll/adler32-16777216/#00-16                	      10	 124000400 ns/op	 135.30 MB/s	 7548937 B/op	       0 allocs/op
BenchmarkRoll/bozo32-16777216/#00-16                 	      10	 118008080 ns/op	 142.17 MB/s	 7548928 B/op	       0 allocs/op
BenchmarkRoll/buzhash32-16777216/#00-16              	      10	 126794440 ns/op	 132.32 MB/s	 7548928 B/op	       0 allocs/op
BenchmarkRoll/buzhash64-16777216/#00-16              	      10	 126631960 ns/op	 132.49 MB/s	 7548928 B/op	       0 allocs/op

* Update benchmark_test.go

* gofmt

* fixup benchmark

.gitattributes

@@ -0,0 +1,8 @@
+# Text files use LF line endings in this repository
+*   text=auto
+
+# Except the dependencies, which we leave alone
+vendor/**   -text=auto
+
+# Diffs on these files are meaningless
+*.svg           -diff

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+/AUTHORS    @calmh
+/*.md       @calmh

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,42 @@
+### DO NOT REPORT SECURITY ISSUES IN THIS ISSUE TRACKER
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.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,27 @@
+### Purpose
+
+Describe the purpose of this change. If there is an existing issue that is
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+`Some short description (fixes #1234)` where 1234 is the issue number.
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.gitignore

@@ -1,18 +1,26 @@
-./syncthing
+/syncthing
+/stdiscosrv
 syncthing.exe
+stdiscosrv.exe
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 *.zip
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 RELEASE
+deb
+lib/auto/gui.files.go
+snapcraft.yaml
+prime/
+snap/
+parts/
+stage/
+*.snap
+*.bz2
+/repos

.golangci.yml

@@ -0,0 +1,5 @@
+service:
+  golangci-lint-version: 1.13.x
+  prepare:
+    - go run build.go assets
+    - GO111MODULE=on go mod vendor

.mailmap

@@ -1 +0,0 @@
-NICKS

AUTHORS

@@ -1,49 +1,196 @@
 # This is the official list of Syncthing authors for copyright purposes.
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CONDUCT.md

@@ -1,92 +1,73 @@
-## Conduct
+# Contributor Covenant Code of Conduct
 
-* We are committed to providing a friendly, safe and welcoming
-  environment for all, regardless of gender, sexual orientation,
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+## Our Pledge
 
-* On IRC, please avoid using overtly sexual nicknames or other nicknames
-  that might detract from a friendly, safe and welcoming environment for
-  all.
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of experience,
+education, socio-economic status, nationality, personal appearance, race,
+religion, or sexual identity and orientation.
 
-* Please be kind and courteous. There's no need to be mean or rude.
+## Our Standards
 
-* Respect that people have differences of opinion and that every design
-  or implementation choice carries a trade-off and numerous costs. There
-  is seldom a right answer.
+Examples of behavior that contributes to creating a positive environment
+include:
 
-* Please keep unstructured critique to a minimum. If you have solid
-  ideas you want to experiment with, make a fork and see how it works.
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
 
-* We will exclude you from interaction if you insult, demean or harass
-  anyone. That is not welcome behaviour. We interpret the term
-  "harassment" as including the definition in the <a
-  href="http://citizencodeofconduct.org/">Citizen Code of Conduct</a>;
-  if you have any lack of clarity about what might be included in that
-  concept, please read their definition. In particular, we don't
-  tolerate behavior that excludes people in socially marginalized
-  groups.
+Examples of unacceptable behavior by participants include:
 
-* Private harassment is also unacceptable. No matter who you are, if you
-  feel you have been or are being harassed or made uncomfortable by a
-  community member, please contact one of the channel ops or any of the
-  Syncthing core team immediately. Whether you're a regular  contributor
-  or a newcomer, we care about making this community a safe place for
-  you and we've got your back.
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
 
-* Likewise any spamming, trolling, flaming, baiting or other
-  attention-stealing behaviour is not welcome.
+## Our Responsibilities
 
-## Moderation
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
 
-These are the policies for upholding our community's standards of
-conduct in our communication channels, most notably in Syncthing-related
-IRC channels and on the web forum.
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
 
-1. Remarks that violate the Syncthing standards of conduct, including
-   hateful, hurtful, oppressive, or exclusionary remarks, are not
-   allowed. (Cursing is allowed, but never targeting another user, and
-   never in a hateful manner.)
+## Scope
 
-2. Remarks that moderators find inappropriate, whether listed in the
-   code of conduct or not, are also not allowed.
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
 
-3. Moderators will first respond to such remarks with a warning.
+## Enforcement
 
-4. If the warning is unheeded, the user will be "kicked," i.e., kicked
-   out of the communication channel to cool off.
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at security@syncthing.net. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
 
-5. If the user comes back and continues to make trouble, they will be
-   banned, i.e., indefinitely excluded.
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
 
-6. Moderators may choose at their discretion to un-ban the user if it
-   was a first offense and they offer the offended party a genuine
-   apology.
+## Attribution
 
-7. If a moderator bans someone and you think it was unjustified, please
-   take it up with that moderator, or with a different moderator, **in
-   private**. Complaints about bans in-channel are not allowed.
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
 
-8. Moderators are held to a higher standard than other community
-   members. If a moderator creates an inappropriate situation, they
-   should expect less leeway than others.
-
-In the Syncthing community we strive to go the extra step to look out
-for each other. Don't just aim to be technically unimpeachable, try to
-be your best self. In particular, avoid flirting with offensive or
-sensitive issues, particularly if they're off-topic; this all too
-often leads to unnecessary fights, hurt feelings, and damaged trust;
-worse, it can drive people away from the community entirely.
-
-And if someone takes issue with something you said or did, resist the
-urge to be defensive. Just stop doing what it was they complained about
-and apologize. Even if you feel you were misinterpreted or unfairly
-accused, chances are good there was something you could've communicated
-better — remember that it's your responsibility to make your fellow
-community members comfortable. Everyone wants to get along and we are
-all here first and foremost because we want to talk about cool
-technology. You will find that people will be eager to assume good
-intent and forgive as long as you earn their trust.
-
-*Adapted from the [Rust Code of Conduct](https://github.com/rust-lang/rust/wiki/Note-development-policy#conduct)*
-
-*Adapted from the [Node.js Policy on Trolling](http://blog.izs.me/post/30036893703/policy-on-trolling)*
+[homepage]: https://www.contributor-covenant.org

CONTRIBUTING.md

@@ -32,109 +32,32 @@ latest info on Transifex.
 ## Contributing Code
 
 Every contribution is welcome. If you want to contribute but are unsure
-where to start, any open issues are fair game! Be prepared for a
-[certain amount of review](https://github.com/syncthing/syncthing/wiki/FAQ#why-are-you-being-so-hard-on-my-pull-request);
-it's all in the name of quality. :) Following the points below will make this
-a smoother process.
+where to start, any open issues are fair game! See the [Contribution
+Guidelines](https://docs.syncthing.net/dev/contributing.html) for the full
+story on committing code.
 
-Individuals making significant and valuable contributions are given
-commit-access to the project. If you make a significant contribution and
-are not considered for commit-access, please contact any of the
-Syncthing core team members.
+## Contributing Documentation
 
-All nontrivial contributions should go through the pull request
-mechanism for internal review. Determining what is "nontrivial" is left
-at the discretion of the contributor.
-
-### Authorship
-
-All code authors are listed in the AUTHORS file. Commits must be made
-with the same name and email as listed in the AUTHORS file. To
-accomplish this, ensure that your git configuration is set correctly
-prior to making your first commit;
-
-    $ git config --global user.name "Jane Doe"
-    $ git config --global user.email janedoe@example.com
-
-You must be reachable on the given email address. If you do not wish to
-use your real name for whatever reason, using a nickname or pseudonym is
-perfectly acceptable.
-
-### Core Team
-
-The Syncthing core team currently consists of the following members;
-
- - Jakob Borg (@calmh)
- - Audrius Butkevicius (@AudriusButkevicius)
-
-## Coding Style
-
-- Follow the conventions laid out in [Effective Go](https://golang.org/doc/effective_go.html)
-  as much as makes sense.
-
-- All text files use Unix line endings.
-
-- Each commit should be `go fmt` clean.
-
-- The commit message subject should be a single short sentence
-  describing the change, starting with a capital letter.
-
-- Commits that resolve an existing issue must include the issue number
-  as `(fixes #123)` at the end of the commit message subject.
-
-- Imports are grouped per `goimports` standard; that is, standard
-  library first, then third party libraries after a blank line.
-
-- A contribution solving a single issue or introducing a single new
-  feature should probably be a single commit based on the current
-  `master` branch. You may be asked to "rebase" or "squash" your pull
-  request to make sure this is the case, especially if there have been
-  amendments during review.
+Updates to the [documentation site](https://docs.syncthing.net/) can be
+made as pull requests on the [documentation
+repository](https://github.com/syncthing/docs).
 
 ## Licensing
 
-All contributions are made under the same GPL license as the rest of the
-project, except documentation, user interface text and translation
-strings which are licensed under the Creative Commons Attribution 4.0
-International License. You retain the copyright to code you have
-written.
+All contributions are made available under the same license as the already
+existing material being contributed to. For most of the project and unless
+otherwise stated this means MPLv2, but there are exceptions:
 
-When accepting your first contribution, the maintainer of the project
-will ensure that you are added to the AUTHORS file. You are welcome to
-add yourself as a separate commit in your first pull request.
+- Certain commands (under cmd/...) may have a separate license, indicated by
+  the presence of a LICENSE file in the corresponding directory.
 
-## Building
+- The documentation (man/...) is licensed under the Creative Commons
+  Attribution 4.0 International License.
 
-[See the documentation](https://github.com/syncthing/syncthing/wiki/Building)
-on how to get started with a build environment.
+- Projects under vendor/... are copyright by and licensed from their
+  respective original authors. Contributions should be made to the original
+  project, not here.
 
-## Branches
+Regardless of the license in effect, you retain the copyright to your
+contribution.
 
- - `master` is the main branch containing good code that will end up in
-   the next release. You should base your work on it. It won't ever be
-   rebased or force-pushed to.
-
- - `vx.y` branches exist to make patch releases on otherwise obsolete
-   minor releases. Should only contain fixes cherry picked from master.
-   Don't base any work on them.
-
- - Other branches are probably topic branches and may be subject to
-   rebasing. Don't base any work on them unless you specifically know
-   otherwise.
-
-## Tags
-
-All releases are tagged semver style as `vx.y.z`. Release tags are
-signed by GPG key BCE524C7.
-
-## Tests
-
-Yes please!
-
-## Documentation
-
-[Over here!](https://github.com/syncthing/syncthing/wiki)
-
-## License
-
-GPLv3

Dockerfile

@@ -0,0 +1,32 @@
+FROM golang:1.11 AS builder
+
+WORKDIR /src
+COPY . .
+
+ENV CGO_ENABLED=0
+ENV BUILD_HOST=syncthing.net
+ENV BUILD_USER=docker
+RUN rm -f syncthing && go run build.go -no-upgrade build syncthing
+
+FROM alpine
+
+EXPOSE 8384 22000 21027/udp
+
+VOLUME ["/var/syncthing"]
+
+RUN apk add --no-cache ca-certificates su-exec
+
+COPY --from=builder /src/syncthing /bin/syncthing
+
+ENV PUID=1000 PGID=1000
+
+HEALTHCHECK --interval=1m --timeout=10s \
+  CMD nc -z localhost 8384 || exit 1
+
+ENTRYPOINT \
+  chown "${PUID}:${PGID}" /var/syncthing \
+  && su-exec "${PUID}:${PGID}" \
+     env HOME=/var/syncthing \
+     /bin/syncthing \
+       -home /var/syncthing/config \
+       -gui-address 0.0.0.0:8384

GOALS.md

@@ -0,0 +1,83 @@
+# The Syncthing Goals
+
+Syncthing is a **continuous file synchronization program**. It synchronizes
+files between two or more computers. We strive to fulfill the goals below.
+The goals are listed in order of importance, the most important one being
+the first.
+
+> "Syncing files" here is precise. It means we specifically exclude things
+> that are not files - calendar items, instant messages, and so on. If those
+> are in fact stored as files on disk, they can of course be synced as
+> files.
+
+Syncthing should be:
+
+### 1. Safe From Data Loss
+
+Protecting the user's data is paramount. We take every reasonable precaution
+to avoid corrupting the user's files.
+
+> This is the overriding goal, without which synchronizing files becomes
+> pointless. This means that we do not make unsafe trade offs for the sake
+> of performance or, in some cases, even usability.
+
+### 2. Secure Against Attackers
+
+Again, protecting the user's data is paramount. Regardless of our other
+goals we must never allow the user's data to be susceptible to eavesdropping
+or modification by unauthorized parties.
+
+> This should be understood in context. It is not necessarily reasonable to
+> expect Syncthing to be resistant against well equipped state level
+> attackers. We will however do our best. Note also that this is different
+> from anonymity which is not, currently, a goal.
+
+### 3. Easy to Use
+
+Syncthing should be approachable, understandable and inclusive.
+
+> Complex concepts and maths form the base of Syncthing's functionality.
+> This should nonetheless be abstracted or hidden to a degree where
+> Syncthing is usable by the general public.
+
+### 4. Automatic
+
+User interaction should be required only when absolutely necessary.
+
+> Specifically this means that changes to files are picked up without
+> prompting, conflicts are resolved without prompting and connections are
+> maintained without prompting. We only prompt the user when it is required
+> to fulfill one of the (overriding) Secure, Safe or Easy goals.
+
+### 5. Universally Available
+
+Syncthing should run on every common computer. We are mindful that the
+latest technology is not always available to any given individual.
+
+> Computers include desktops, laptops, servers, virtual machines, small
+> general purpose computers such as Raspberry Pis and, *where possible*,
+> tablets and phones. NAS appliances, toasters, cars, firearms, thermostats
+> and so on may include computing capabitilies but it is not our goal for
+> Syncthing to run smoothly on these devices.
+
+### 6. For Individuals
+
+Syncthing is primarily about empowering the individual user with safe,
+secure and easy to use file synchronization.
+
+> We acknowledge that it's also useful in an enterprise setting and include
+> functionality to support that. If this is in conflict with the
+> requirements of the individual, those will however take priority.
+
+### 7. Everything Else
+
+There are many things we care about that don't make it on to the list. It is
+fine to optimize for these values as well, as long as they are not in
+conflict with the stated goals above.
+
+> For example, performance is a thing we care about. We just don't care more
+> about it than safety, security, etc. Maintainability of the code base and
+> providing entertainment value for the maintainers are also things that
+> matter. It is understood that there are aspects of Syncthing that are
+> suboptimal or even in opposition with the goals above. However, we
+> continuously strive to align Syncthing more and more with these goals.

Godeps/Godeps.json

@@ -1,73 +0,0 @@
-{
-	"ImportPath": "github.com/syncthing/syncthing",
-	"GoVersion": "go1.4",
-	"Packages": [
-		"./cmd/..."
-	],
-	"Deps": [
-		{
-			"ImportPath": "github.com/bkaradzic/go-lz4",
-			"Rev": "93a831dcee242be64a9cc9803dda84af25932de7"
-		},
-		{
-			"ImportPath": "github.com/calmh/logger",
-			"Rev": "f50d32b313bec2933a3e1049f7416a29f3413d29"
-		},
-		{
-			"ImportPath": "github.com/calmh/luhn",
-			"Rev": "0c8388ff95fa92d4094011e5a04fc99dea3d1632"
-		},
-		{
-			"ImportPath": "github.com/calmh/xdr",
-			"Rev": "ff948d7666c5e0fd18d398f6278881724d36a90b"
-		},
-		{
-			"ImportPath": "github.com/juju/ratelimit",
-			"Rev": "f9f36d11773655c0485207f0ad30dc2655f69d56"
-		},
-		{
-			"ImportPath": "github.com/kardianos/osext",
-			"Rev": "91292666f7e40f03185cdd1da7d85633c973eca7"
-		},
-		{
-			"ImportPath": "github.com/syncthing/protocol",
-			"Rev": "1a4398cc55c8fe82a964097eaf59f2475b020a49"
-		},
-		{
-			"ImportPath": "github.com/syndtr/goleveldb/leveldb",
-			"Rev": "e3f32eb300aa1e514fe8ba58d008da90a062273d"
-		},
-		{
-			"ImportPath": "github.com/syndtr/gosnappy/snappy",
-			"Rev": "ce8acff4829e0c2458a67ead32390ac0a381c862"
-		},
-		{
-			"ImportPath": "github.com/vitrun/qart/coding",
-			"Rev": "ccb109cf25f0cd24474da73b9fee4e7a3e8a8ce0"
-		},
-		{
-			"ImportPath": "github.com/vitrun/qart/gf256",
-			"Rev": "ccb109cf25f0cd24474da73b9fee4e7a3e8a8ce0"
-		},
-		{
-			"ImportPath": "github.com/vitrun/qart/qr",
-			"Rev": "ccb109cf25f0cd24474da73b9fee4e7a3e8a8ce0"
-		},
-		{
-			"ImportPath": "golang.org/x/crypto/bcrypt",
-			"Rev": "4ed45ec682102c643324fae5dff8dab085b6c300"
-		},
-		{
-			"ImportPath": "golang.org/x/crypto/blowfish",
-			"Rev": "4ed45ec682102c643324fae5dff8dab085b6c300"
-		},
-		{
-			"ImportPath": "golang.org/x/text/transform",
-			"Rev": "c980adc4a823548817b9c47d38c6ca6b7d7d8b6a"
-		},
-		{
-			"ImportPath": "golang.org/x/text/unicode/norm",
-			"Rev": "c980adc4a823548817b9c47d38c6ca6b7d7d8b6a"
-		}
-	]
-}

Godeps/Readme

@@ -1,5 +0,0 @@
-This directory tree is generated automatically by godep.
-
-Please do not edit.
-
-See https://github.com/tools/godep for more information.

Godeps/_workspace/.gitignore

@@ -1,2 +0,0 @@
-/pkg
-/bin

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/.gitignore

@@ -1 +0,0 @@
-/lz4-example/lz4-example

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/.travis.yml

@@ -1,7 +0,0 @@
-language: go
-
-go:
-  - 1.1
-  - 1.2
-  - 1.3
-  - tip

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/LICENSE

@@ -1,24 +0,0 @@
-Copyright 2011-2012 Branimir Karadzic. All rights reserved.
-Copyright 2013 Damian Gryski. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
-   1. Redistributions of source code must retain the above copyright notice, this
-      list of conditions and the following disclaimer.
-
-   2. Redistributions in binary form must reproduce the above copyright notice,
-      this list of conditions and the following disclaimer in the documentation
-      and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
-SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
-OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
-THE POSSIBILITY OF SUCH DAMAGE.
-

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/README.md

@@ -1,71 +0,0 @@
-go-lz4
-======
-
-go-lz4 is port of LZ4 lossless compression algorithm to Go. The original C code
-is located at:
-
-https://code.google.com/p/lz4/
-
-Status
-------
-[![Build Status](https://secure.travis-ci.org/bkaradzic/go-lz4.png)](http://travis-ci.org/bkaradzic/go-lz4)  
-[![GoDoc](https://godoc.org/github.com/bkaradzic/go-lz4?status.png)](https://godoc.org/github.com/bkaradzic/go-lz4)
-
-Usage
------
-
-    go get github.com/bkaradzic/go-lz4
-
-    import "github.com/bkaradzic/go-lz4"
-
-The package name is `lz4`
-
-Notes
------
-
-* go-lz4 saves a uint32 with the original uncompressed length at the beginning
-  of the encoded buffer.  They may get in the way of interoperability with
-  other implementations.
-
-Contributors
-------------
-
-Damian Gryski ([@dgryski](https://github.com/dgryski))  
-Dustin Sallings ([@dustin](https://github.com/dustin))
-
-Contact
--------
-
-[@bkaradzic](https://twitter.com/bkaradzic)  
-http://www.stuckingeometry.com
-
-Project page  
-https://github.com/bkaradzic/go-lz4
-
-License
--------
-
-Copyright 2011-2012 Branimir Karadzic. All rights reserved.  
-Copyright 2013 Damian Gryski. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
-   1. Redistributions of source code must retain the above copyright notice, this
-      list of conditions and the following disclaimer.
-
-   2. Redistributions in binary form must reproduce the above copyright notice,
-      this list of conditions and the following disclaimer in the documentation
-      and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
-SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
-OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
-THE POSSIBILITY OF SUCH DAMAGE.
-

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/fuzzer/main.go

@@ -1,74 +0,0 @@
-package main
-
-import (
-	"math/rand"
-
-	"github.com/bkaradzic/go-lz4"
-
-	// lz4's API matches snappy's, so we can easily see how it performs
-	// lz4 "code.google.com/p/snappy-go/snappy"
-)
-
-var input = `
-ADVENTURE I. A SCANDAL IN BOHEMIA
-
-I.
-
-To Sherlock Holmes she is always THE woman. I have seldom heard
-him mention her under any other name. In his eyes she eclipses
-and predominates the whole of her sex. It was not that he felt
-any emotion akin to love for Irene Adler. All emotions, and that
-one particularly, were abhorrent to his cold, precise but
-admirably balanced mind. He was, I take it, the most perfect
-reasoning and observing machine that the world has seen, but as a
-lover he would have placed himself in a false position. He never
-spoke of the softer passions, save with a gibe and a sneer. They
-were admirable things for the observer--excellent for drawing the
-veil from men's motives and actions. But for the trained reasoner
-to admit such intrusions into his own delicate and finely
-adjusted temperament was to introduce a distracting factor which
-might throw a doubt upon all his mental results. Grit in a
-sensitive instrument, or a crack in one of his own high-power
-lenses, would not be more disturbing than a strong emotion in a
-nature such as his. And yet there was but one woman to him, and
-that woman was the late Irene Adler, of dubious and questionable
-memory.
-
-I had seen little of Holmes lately. My marriage had drifted us
-away from each other. My own complete happiness, and the
-home-centred interests which rise up around the man who first
-finds himself master of his own establishment, were sufficient to
-absorb all my attention, while Holmes, who loathed every form of
-society with his whole Bohemian soul, remained in our lodgings in
-Baker Street, buried among his old books, and alternating from
-week to week between cocaine and ambition, the drowsiness of the
-drug, and the fierce energy of his own keen nature. He was still,
-as ever, deeply attracted by the study of crime, and occupied his
-immense faculties and extraordinary powers of observation in
-following out those clues, and clearing up those mysteries which
-had been abandoned as hopeless by the official police. From time
-to time I heard some vague account of his doings: of his summons
-to Odessa in the case of the Trepoff murder, of his clearing up
-of the singular tragedy of the Atkinson brothers at Trincomalee,
-and finally of the mission which he had accomplished so
-delicately and successfully for the reigning family of Holland.
-Beyond these signs of his activity, however, which I merely
-shared with all the readers of the daily press, I knew little of
-my former friend and companion.
-`
-
-func main() {
-
-	compressed, _ := lz4.Encode(nil, []byte(input))
-
-	modified := make([]byte, len(compressed))
-
-	for {
-		copy(modified, compressed)
-		for i := 0; i < 100; i++ {
-			modified[rand.Intn(len(compressed)-4)+4] = byte(rand.Intn(256))
-		}
-		lz4.Decode(nil, modified)
-	}
-
-}

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/lz4-example/main.go

@@ -1,94 +0,0 @@
-/*
- * Copyright 2011 Branimir Karadzic. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this
- *       list of conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice,
- *       this list of conditions and the following disclaimer in the documentation
- *       and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package main
-
-import (
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os"
-	"runtime/pprof"
-
-	lz4 "github.com/bkaradzic/go-lz4"
-)
-
-var (
-	decompress = flag.Bool("d", false, "decompress")
-)
-
-func main() {
-
-	var optCPUProfile = flag.String("cpuprofile", "", "profile")
-	flag.Parse()
-
-	if *optCPUProfile != "" {
-		f, err := os.Create(*optCPUProfile)
-		if err != nil {
-			log.Fatal(err)
-		}
-		pprof.StartCPUProfile(f)
-		defer pprof.StopCPUProfile()
-	}
-
-	args := flag.Args()
-
-	var data []byte
-
-	if len(args) < 2 {
-		fmt.Print("Usage: lz4 [-d] <input> <output>\n")
-		os.Exit(1)
-	}
-
-	input, err := os.OpenFile(args[0], os.O_RDONLY, 0644)
-	if err != nil {
-		fmt.Printf("Failed to open input file %s\n", args[0])
-		os.Exit(1)
-	}
-	defer input.Close()
-
-	if *decompress {
-		data, _ = ioutil.ReadAll(input)
-		data, err = lz4.Decode(nil, data)
-		if err != nil {
-			fmt.Println("Failed to decode:", err)
-			return
-		}
-	} else {
-		data, _ = ioutil.ReadAll(input)
-		data, err = lz4.Encode(nil, data)
-		if err != nil {
-			fmt.Println("Failed to encode:", err)
-			return
-		}
-	}
-
-	err = ioutil.WriteFile(args[1], data, 0644)
-	if err != nil {
-		fmt.Printf("Failed to open output file %s\n", args[1])
-		os.Exit(1)
-	}
-}

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/lz4_test.go

@@ -1,63 +0,0 @@
-package lz4
-
-import (
-	"bytes"
-	"io/ioutil"
-	"testing"
-)
-
-var testfile, _ = ioutil.ReadFile("testdata/pg1661.txt")
-
-func roundtrip(t *testing.T, input []byte) {
-
-	dst, err := Encode(nil, input)
-	if err != nil {
-		t.Errorf("got error during compression: %s", err)
-	}
-
-	output, err := Decode(nil, dst)
-
-	if err != nil {
-		t.Errorf("got error during decompress: %s", err)
-	}
-
-	if !bytes.Equal(output, input) {
-		t.Errorf("roundtrip failed")
-	}
-}
-
-func TestEmpty(t *testing.T) {
-	roundtrip(t, nil)
-}
-
-func TestLengths(t *testing.T) {
-
-	for i := 0; i < 1024; i++ {
-		roundtrip(t, testfile[:i])
-	}
-
-	for i := 1024; i < 4096; i += 23 {
-		roundtrip(t, testfile[:i])
-	}
-}
-
-func TestWords(t *testing.T) {
-	roundtrip(t, testfile)
-}
-
-func BenchmarkLZ4Encode(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		Encode(nil, testfile)
-	}
-}
-
-func BenchmarkLZ4Decode(b *testing.B) {
-
-	var compressed, _ = Encode(nil, testfile)
-
-	b.ResetTimer()
-
-	for i := 0; i < b.N; i++ {
-		Decode(nil, compressed)
-	}
-}

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/reader.go

@@ -1,194 +0,0 @@
-/*
- * Copyright 2011-2012 Branimir Karadzic. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this
- *       list of conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice,
- *       this list of conditions and the following disclaimer in the documentation
- *       and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package lz4
-
-import (
-	"encoding/binary"
-	"errors"
-	"io"
-)
-
-var (
-	// ErrCorrupt indicates the input was corrupt
-	ErrCorrupt = errors.New("corrupt input")
-)
-
-const (
-	mlBits  = 4
-	mlMask  = (1 << mlBits) - 1
-	runBits = 8 - mlBits
-	runMask = (1 << runBits) - 1
-)
-
-type decoder struct {
-	src  []byte
-	dst  []byte
-	spos uint32
-	dpos uint32
-	ref  uint32
-}
-
-func (d *decoder) readByte() (uint8, error) {
-	if int(d.spos) == len(d.src) {
-		return 0, io.EOF
-	}
-	b := d.src[d.spos]
-	d.spos++
-	return b, nil
-}
-
-func (d *decoder) getLen() (uint32, error) {
-
-	length := uint32(0)
-	ln, err := d.readByte()
-	if err != nil {
-		return 0, ErrCorrupt
-	}
-	for ln == 255 {
-		length += 255
-		ln, err = d.readByte()
-		if err != nil {
-			return 0, ErrCorrupt
-		}
-	}
-	length += uint32(ln)
-
-	return length, nil
-}
-
-func (d *decoder) cp(length, decr uint32) {
-
-	if int(d.ref+length) < int(d.dpos) {
-		copy(d.dst[d.dpos:], d.dst[d.ref:d.ref+length])
-	} else {
-		for ii := uint32(0); ii < length; ii++ {
-			d.dst[d.dpos+ii] = d.dst[d.ref+ii]
-		}
-	}
-	d.dpos += length
-	d.ref += length - decr
-}
-
-func (d *decoder) finish(err error) error {
-	if err == io.EOF {
-		return nil
-	}
-
-	return err
-}
-
-// Decode returns the decoded form of src.  The returned slice may be a
-// subslice of dst if it was large enough to hold the entire decoded block.
-func Decode(dst, src []byte) ([]byte, error) {
-
-	if len(src) < 4 {
-		return nil, ErrCorrupt
-	}
-
-	uncompressedLen := binary.LittleEndian.Uint32(src)
-
-	if uncompressedLen == 0 {
-		return nil, nil
-	}
-
-	if uncompressedLen > MaxInputSize {
-		return nil, ErrTooLarge
-	}
-
-	if dst == nil || len(dst) < int(uncompressedLen) {
-		dst = make([]byte, uncompressedLen)
-	}
-
-	d := decoder{src: src, dst: dst[:uncompressedLen], spos: 4}
-
-	decr := []uint32{0, 3, 2, 3}
-
-	for {
-		code, err := d.readByte()
-		if err != nil {
-			return d.dst, d.finish(err)
-		}
-
-		length := uint32(code >> mlBits)
-		if length == runMask {
-			ln, err := d.getLen()
-			if err != nil {
-				return nil, ErrCorrupt
-			}
-			length += ln
-		}
-
-		if int(d.spos+length) > len(d.src) {
-			return nil, ErrCorrupt
-		}
-
-		for ii := uint32(0); ii < length; ii++ {
-			d.dst[d.dpos+ii] = d.src[d.spos+ii]
-		}
-
-		d.spos += length
-		d.dpos += length
-
-		if int(d.spos) == len(d.src) {
-			return d.dst, nil
-		}
-
-		if int(d.spos+2) >= len(d.src) {
-			return nil, ErrCorrupt
-		}
-
-		back := uint32(d.src[d.spos]) | uint32(d.src[d.spos+1])<<8
-
-		if back > d.dpos {
-			return nil, ErrCorrupt
-		}
-
-		d.spos += 2
-		d.ref = d.dpos - back
-
-		length = uint32(code & mlMask)
-		if length == mlMask {
-			ln, err := d.getLen()
-			if err != nil {
-				return nil, ErrCorrupt
-			}
-			length += ln
-		}
-
-		literal := d.dpos - d.ref
-		if literal < 4 {
-			d.cp(4, decr[literal])
-		} else {
-			length += 4
-		}
-
-		if d.dpos+length > uncompressedLen {
-			return nil, ErrCorrupt
-		}
-
-		d.cp(length, 0)
-	}
-}

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/writer.go

@@ -1,188 +0,0 @@
-/*
- * Copyright 2011-2012 Branimir Karadzic. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this
- *       list of conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice,
- *       this list of conditions and the following disclaimer in the documentation
- *       and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package lz4
-
-import "encoding/binary"
-import "errors"
-
-const (
-	minMatch              = 4
-	hashLog               = 17
-	hashTableSize         = 1 << hashLog
-	hashShift             = (minMatch * 8) - hashLog
-	incompressible uint32 = 128
-	uninitHash            = 0x88888888
-
-	// MaxInputSize is the largest buffer than can be compressed in a single block
-	MaxInputSize = 0x7E000000
-)
-
-var (
-	// ErrTooLarge indicates the input buffer was too large
-	ErrTooLarge = errors.New("input too large")
-)
-
-type encoder struct {
-	src       []byte
-	dst       []byte
-	hashTable []uint32
-	pos       uint32
-	anchor    uint32
-	dpos      uint32
-}
-
-// CompressBound returns the maximum length of a lz4 block, given it's uncompressed length
-func CompressBound(isize int) int {
-	if isize > MaxInputSize {
-		return 0
-	}
-	return isize + ((isize) / 255) + 16 + 4
-}
-
-func (e *encoder) writeLiterals(length, mlLen, pos uint32) {
-
-	ln := length
-
-	var code byte
-	if ln > runMask-1 {
-		code = runMask
-	} else {
-		code = byte(ln)
-	}
-
-	if mlLen > mlMask-1 {
-		e.dst[e.dpos] = (code << mlBits) + byte(mlMask)
-	} else {
-		e.dst[e.dpos] = (code << mlBits) + byte(mlLen)
-	}
-	e.dpos++
-
-	if code == runMask {
-		ln -= runMask
-		for ; ln > 254; ln -= 255 {
-			e.dst[e.dpos] = 255
-			e.dpos++
-		}
-
-		e.dst[e.dpos] = byte(ln)
-		e.dpos++
-	}
-
-	for ii := uint32(0); ii < length; ii++ {
-		e.dst[e.dpos+ii] = e.src[pos+ii]
-	}
-
-	e.dpos += length
-}
-
-// Encode returns the encoded form of src.  The returned array may be a
-// sub-slice of dst if it was large enough to hold the entire output.
-func Encode(dst, src []byte) ([]byte, error) {
-
-	if len(src) >= MaxInputSize {
-		return nil, ErrTooLarge
-	}
-
-	if n := CompressBound(len(src)); len(dst) < n {
-		dst = make([]byte, n)
-	}
-
-	e := encoder{src: src, dst: dst, hashTable: make([]uint32, hashTableSize)}
-
-	binary.LittleEndian.PutUint32(dst, uint32(len(src)))
-	e.dpos = 4
-
-	var (
-		step  uint32 = 1
-		limit        = incompressible
-	)
-
-	for {
-		if int(e.pos)+12 >= len(e.src) {
-			e.writeLiterals(uint32(len(e.src))-e.anchor, 0, e.anchor)
-			return e.dst[:e.dpos], nil
-		}
-
-		sequence := uint32(e.src[e.pos+3])<<24 | uint32(e.src[e.pos+2])<<16 | uint32(e.src[e.pos+1])<<8 | uint32(e.src[e.pos+0])
-
-		hash := (sequence * 2654435761) >> hashShift
-		ref := e.hashTable[hash] + uninitHash
-		e.hashTable[hash] = e.pos - uninitHash
-
-		if ((e.pos-ref)>>16) != 0 || uint32(e.src[ref+3])<<24|uint32(e.src[ref+2])<<16|uint32(e.src[ref+1])<<8|uint32(e.src[ref+0]) != sequence {
-			if e.pos-e.anchor > limit {
-				limit <<= 1
-				step += 1 + (step >> 2)
-			}
-			e.pos += step
-			continue
-		}
-
-		if step > 1 {
-			e.hashTable[hash] = ref - uninitHash
-			e.pos -= step - 1
-			step = 1
-			continue
-		}
-		limit = incompressible
-
-		ln := e.pos - e.anchor
-		back := e.pos - ref
-
-		anchor := e.anchor
-
-		e.pos += minMatch
-		ref += minMatch
-		e.anchor = e.pos
-
-		for int(e.pos) < len(e.src)-5 && e.src[e.pos] == e.src[ref] {
-			e.pos++
-			ref++
-		}
-
-		mlLen := e.pos - e.anchor
-
-		e.writeLiterals(ln, mlLen, anchor)
-		e.dst[e.dpos] = uint8(back)
-		e.dst[e.dpos+1] = uint8(back >> 8)
-		e.dpos += 2
-
-		if mlLen > mlMask-1 {
-			mlLen -= mlMask
-			for mlLen > 254 {
-				mlLen -= 255
-
-				e.dst[e.dpos] = 255
-				e.dpos++
-			}
-
-			e.dst[e.dpos] = byte(mlLen)
-			e.dpos++
-		}
-
-		e.anchor = e.pos
-	}
-}

Godeps/_workspace/src/github.com/calmh/logger/README.md

@@ -1,15 +0,0 @@
-logger
-======
-
-A small wrapper around `log` to provide log levels.
-
-Documentation
--------------
-
-http://godoc.org/github.com/calmh/logger
-
-License
--------
-
-MIT
-

Godeps/_workspace/src/github.com/calmh/logger/logger.go

@@ -1,160 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-// Package logger implements a standardized logger with callback functionality
-package logger
-
-import (
-	"fmt"
-	"log"
-	"os"
-	"strings"
-	"sync"
-)
-
-type LogLevel int
-
-const (
-	LevelDebug LogLevel = iota
-	LevelInfo
-	LevelOK
-	LevelWarn
-	LevelFatal
-	NumLevels
-)
-
-// A MessageHandler is called with the log level and message text.
-type MessageHandler func(l LogLevel, msg string)
-
-type Logger struct {
-	logger   *log.Logger
-	handlers [NumLevels][]MessageHandler
-	mut      sync.Mutex
-}
-
-// The default logger logs to standard output with a time prefix.
-var DefaultLogger = New()
-
-func New() *Logger {
-	return &Logger{
-		logger: log.New(os.Stdout, "", log.Ltime),
-	}
-}
-
-// AddHandler registers a new MessageHandler to receive messages with the
-// specified log level or above.
-func (l *Logger) AddHandler(level LogLevel, h MessageHandler) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	l.handlers[level] = append(l.handlers[level], h)
-}
-
-// See log.SetFlags
-func (l *Logger) SetFlags(flag int) {
-	l.logger.SetFlags(flag)
-}
-
-// See log.SetPrefix
-func (l *Logger) SetPrefix(prefix string) {
-	l.logger.SetPrefix(prefix)
-}
-
-func (l *Logger) callHandlers(level LogLevel, s string) {
-	for _, h := range l.handlers[level] {
-		h(level, strings.TrimSpace(s))
-	}
-}
-
-// Debugln logs a line with a DEBUG prefix.
-func (l *Logger) Debugln(vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintln(vals...)
-	l.logger.Output(2, "DEBUG: "+s)
-	l.callHandlers(LevelDebug, s)
-}
-
-// Debugf logs a formatted line with a DEBUG prefix.
-func (l *Logger) Debugf(format string, vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintf(format, vals...)
-	l.logger.Output(2, "DEBUG: "+s)
-	l.callHandlers(LevelDebug, s)
-}
-
-// Infoln logs a line with an INFO prefix.
-func (l *Logger) Infoln(vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintln(vals...)
-	l.logger.Output(2, "INFO: "+s)
-	l.callHandlers(LevelInfo, s)
-}
-
-// Infof logs a formatted line with an INFO prefix.
-func (l *Logger) Infof(format string, vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintf(format, vals...)
-	l.logger.Output(2, "INFO: "+s)
-	l.callHandlers(LevelInfo, s)
-}
-
-// Okln logs a line with an OK prefix.
-func (l *Logger) Okln(vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintln(vals...)
-	l.logger.Output(2, "OK: "+s)
-	l.callHandlers(LevelOK, s)
-}
-
-// Okf logs a formatted line with an OK prefix.
-func (l *Logger) Okf(format string, vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintf(format, vals...)
-	l.logger.Output(2, "OK: "+s)
-	l.callHandlers(LevelOK, s)
-}
-
-// Warnln logs a formatted line with a WARNING prefix.
-func (l *Logger) Warnln(vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintln(vals...)
-	l.logger.Output(2, "WARNING: "+s)
-	l.callHandlers(LevelWarn, s)
-}
-
-// Warnf logs a formatted line with a WARNING prefix.
-func (l *Logger) Warnf(format string, vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintf(format, vals...)
-	l.logger.Output(2, "WARNING: "+s)
-	l.callHandlers(LevelWarn, s)
-}
-
-// Fatalln logs a line with a FATAL prefix and exits the process with exit
-// code 1.
-func (l *Logger) Fatalln(vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintln(vals...)
-	l.logger.Output(2, "FATAL: "+s)
-	l.callHandlers(LevelFatal, s)
-	os.Exit(1)
-}
-
-// Fatalf logs a formatted line with a FATAL prefix and exits the process with
-// exit code 1.
-func (l *Logger) Fatalf(format string, vals ...interface{}) {
-	l.mut.Lock()
-	defer l.mut.Unlock()
-	s := fmt.Sprintf(format, vals...)
-	l.logger.Output(2, "FATAL: "+s)
-	l.callHandlers(LevelFatal, s)
-	os.Exit(1)
-}

Godeps/_workspace/src/github.com/calmh/logger/logger_test.go

@@ -1,58 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-package logger
-
-import (
-	"strings"
-	"testing"
-)
-
-func TestAPI(t *testing.T) {
-	l := New()
-	l.SetFlags(0)
-	l.SetPrefix("testing")
-
-	debug := 0
-	l.AddHandler(LevelDebug, checkFunc(t, LevelDebug, "test 0", &debug))
-	info := 0
-	l.AddHandler(LevelInfo, checkFunc(t, LevelInfo, "test 1", &info))
-	warn := 0
-	l.AddHandler(LevelWarn, checkFunc(t, LevelWarn, "test 2", &warn))
-	ok := 0
-	l.AddHandler(LevelOK, checkFunc(t, LevelOK, "test 3", &ok))
-
-	l.Debugf("test %d", 0)
-	l.Debugln("test", 0)
-	l.Infof("test %d", 1)
-	l.Infoln("test", 1)
-	l.Warnf("test %d", 2)
-	l.Warnln("test", 2)
-	l.Okf("test %d", 3)
-	l.Okln("test", 3)
-
-	if debug != 2 {
-		t.Errorf("Debug handler called %d != 2 times", debug)
-	}
-	if info != 2 {
-		t.Errorf("Info handler called %d != 2 times", info)
-	}
-	if warn != 2 {
-		t.Errorf("Warn handler called %d != 2 times", warn)
-	}
-	if ok != 2 {
-		t.Errorf("Ok handler called %d != 2 times", ok)
-	}
-}
-
-func checkFunc(t *testing.T, expectl LogLevel, expectmsg string, counter *int) func(LogLevel, string) {
-	return func(l LogLevel, msg string) {
-		*counter++
-		if l != expectl {
-			t.Errorf("Incorrect message level %d != %d", l, expectl)
-		}
-		if !strings.HasSuffix(msg, expectmsg) {
-			t.Errorf("%q does not end with %q", msg, expectmsg)
-		}
-	}
-}

Godeps/_workspace/src/github.com/calmh/luhn/LICENSE

@@ -1,19 +0,0 @@
-Copyright (C) 2014 Jakob Borg
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-- The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

Godeps/_workspace/src/github.com/calmh/luhn/luhn.go

@@ -1,70 +0,0 @@
-// Copyright (C) 2014 Jakob Borg
-
-// Package luhn generates and validates Luhn mod N check digits.
-package luhn
-
-import (
-	"fmt"
-	"strings"
-)
-
-// An alphabet is a string of N characters, representing the digits of a given
-// base N.
-type Alphabet string
-
-var (
-	Base32 Alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"
-)
-
-// Generate returns a check digit for the string s, which should be composed
-// of characters from the Alphabet a.
-func (a Alphabet) Generate(s string) (rune, error) {
-	if err := a.check(); err != nil {
-		return 0, err
-	}
-
-	factor := 1
-	sum := 0
-	n := len(a)
-
-	for i := range s {
-		codepoint := strings.IndexByte(string(a), s[i])
-		if codepoint == -1 {
-			return 0, fmt.Errorf("Digit %q not valid in alphabet %q", s[i], a)
-		}
-		addend := factor * codepoint
-		if factor == 2 {
-			factor = 1
-		} else {
-			factor = 2
-		}
-		addend = (addend / n) + (addend % n)
-		sum += addend
-	}
-	remainder := sum % n
-	checkCodepoint := (n - remainder) % n
-	return rune(a[checkCodepoint]), nil
-}
-
-// Validate returns true if the last character of the string s is correct, for
-// a string s composed of characters in the alphabet a.
-func (a Alphabet) Validate(s string) bool {
-	t := s[:len(s)-1]
-	c, err := a.Generate(t)
-	if err != nil {
-		return false
-	}
-	return rune(s[len(s)-1]) == c
-}
-
-// check returns an error if the given alphabet does not consist of unique characters
-func (a Alphabet) check() error {
-	cm := make(map[byte]bool, len(a))
-	for i := range a {
-		if cm[a[i]] {
-			return fmt.Errorf("Digit %q non-unique in alphabet %q", a[i], a)
-		}
-		cm[a[i]] = true
-	}
-	return nil
-}

Godeps/_workspace/src/github.com/calmh/xdr/.gitignore

@@ -1 +0,0 @@
-coverage.out

Godeps/_workspace/src/github.com/calmh/xdr/.travis.yml

@@ -1,19 +0,0 @@
-language: go
-go:
-- tip
-
-install:
-- export PATH=$PATH:$HOME/gopath/bin
-- go get code.google.com/p/go.tools/cmd/cover
-- go get github.com/mattn/goveralls
-
-script:
-- ./generate.sh
-- go test -coverprofile=coverage.out
-
-after_success:
-- goveralls -coverprofile=coverage.out -service=travis-ci -package=calmh/xdr -repotoken="$COVERALLS_TOKEN"
-
-env:
-  global:
-    secure: SmgnrGfp2zLrA44ChRMpjPeujubt9veZ8Fx/OseMWECmacyV5N/TuDhzIbwo6QwV4xB0sBacoPzvxQbJRVjNKsPiSu72UbcQmQ7flN4Tf7nW09tSh1iW8NgrpBCq/3UYLoBu2iPBEBKm93IK0aGNAKs6oEkB0fU27iTVBwiTXOY=

Godeps/_workspace/src/github.com/calmh/xdr/README.md

@@ -1,12 +0,0 @@
-xdr
-===
-
-[![Build Status](https://img.shields.io/travis/calmh/xdr.svg?style=flat)](https://travis-ci.org/calmh/xdr)
-[![Coverage Status](https://img.shields.io/coveralls/calmh/xdr.svg?style=flat)](https://coveralls.io/r/calmh/xdr?branch=master)
-[![API Documentation](http://img.shields.io/badge/api-Godoc-blue.svg?style=flat)](http://godoc.org/github.com/calmh/xdr)
-[![MIT License](http://img.shields.io/badge/license-MIT-blue.svg?style=flat)](http://opensource.org/licenses/MIT)
-
-This is an XDR encoding/decoding library. It uses code generation and
-not reflection. It supports the IPDR bastardized XDR format when built
-with `-tags ipdr`.
-

Godeps/_workspace/src/github.com/calmh/xdr/bench_test.go

@@ -1,117 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-package xdr_test
-
-import (
-	"io"
-	"io/ioutil"
-	"testing"
-
-	"github.com/calmh/xdr"
-)
-
-type XDRBenchStruct struct {
-	I1  uint64
-	I2  uint32
-	I3  uint16
-	I4  uint8
-	Bs0 []byte // max:128
-	Bs1 []byte
-	S0  string // max:128
-	S1  string
-}
-
-var res []byte // no to be optimized away
-var s = XDRBenchStruct{
-	I1:  42,
-	I2:  43,
-	I3:  44,
-	I4:  45,
-	Bs0: []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18},
-	Bs1: []byte{11, 12, 13, 14, 15, 16, 17, 18, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
-	S0:  "Hello World! String one.",
-	S1:  "Hello World! String two.",
-}
-var e []byte
-
-func init() {
-	e, _ = s.MarshalXDR()
-}
-
-func BenchmarkThisMarshal(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		res, _ = s.MarshalXDR()
-	}
-}
-
-func BenchmarkThisUnmarshal(b *testing.B) {
-	var t XDRBenchStruct
-	for i := 0; i < b.N; i++ {
-		err := t.UnmarshalXDR(e)
-		if err != nil {
-			b.Fatal(err)
-		}
-	}
-}
-
-func BenchmarkThisEncode(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		_, err := s.EncodeXDR(ioutil.Discard)
-		if err != nil {
-			b.Fatal(err)
-		}
-	}
-}
-
-func BenchmarkThisEncoder(b *testing.B) {
-	w := xdr.NewWriter(ioutil.Discard)
-	for i := 0; i < b.N; i++ {
-		_, err := s.encodeXDR(w)
-		if err != nil {
-			b.Fatal(err)
-		}
-	}
-}
-
-type repeatReader struct {
-	data []byte
-}
-
-func (r *repeatReader) Read(bs []byte) (n int, err error) {
-	if len(bs) > len(r.data) {
-		err = io.EOF
-	}
-	n = copy(bs, r.data)
-	r.data = r.data[n:]
-	return n, err
-}
-
-func (r *repeatReader) Reset(bs []byte) {
-	r.data = bs
-}
-
-func BenchmarkThisDecode(b *testing.B) {
-	rr := &repeatReader{e}
-	var t XDRBenchStruct
-	for i := 0; i < b.N; i++ {
-		err := t.DecodeXDR(rr)
-		if err != nil {
-			b.Fatal(err)
-		}
-		rr.Reset(e)
-	}
-}
-
-func BenchmarkThisDecoder(b *testing.B) {
-	rr := &repeatReader{e}
-	r := xdr.NewReader(rr)
-	var t XDRBenchStruct
-	for i := 0; i < b.N; i++ {
-		err := t.decodeXDR(r)
-		if err != nil {
-			b.Fatal(err)
-		}
-		rr.Reset(e)
-	}
-}

Godeps/_workspace/src/github.com/calmh/xdr/bench_xdr_test.go

@@ -1,199 +0,0 @@
-// ************************************************************
-// This file is automatically generated by genxdr. Do not edit.
-// ************************************************************
-
-package xdr_test
-
-import (
-	"bytes"
-	"io"
-
-	"github.com/calmh/xdr"
-)
-
-/*
-
-XDRBenchStruct Structure:
-
- 0                   1                   2                   3
- 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                                                               |
-+                         I1 (64 bits)                          +
-|                                                               |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                              I2                               |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|            0x0000             |              I3               |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                             uint8                             |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                         Length of Bs0                         |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-/                                                               /
-\                     Bs0 (variable length)                     \
-/                                                               /
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                         Length of Bs1                         |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-/                                                               /
-\                     Bs1 (variable length)                     \
-/                                                               /
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                         Length of S0                          |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-/                                                               /
-\                     S0 (variable length)                      \
-/                                                               /
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                         Length of S1                          |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-/                                                               /
-\                     S1 (variable length)                      \
-/                                                               /
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-struct XDRBenchStruct {
-	unsigned hyper I1;
-	unsigned int I2;
-	unsigned int I3;
-	uint8 I4;
-	opaque Bs0<128>;
-	opaque Bs1<>;
-	string S0<128>;
-	string S1<>;
-}
-
-*/
-
-func (o XDRBenchStruct) EncodeXDR(w io.Writer) (int, error) {
-	var xw = xdr.NewWriter(w)
-	return o.encodeXDR(xw)
-}
-
-func (o XDRBenchStruct) MarshalXDR() ([]byte, error) {
-	return o.AppendXDR(make([]byte, 0, 128))
-}
-
-func (o XDRBenchStruct) MustMarshalXDR() []byte {
-	bs, err := o.MarshalXDR()
-	if err != nil {
-		panic(err)
-	}
-	return bs
-}
-
-func (o XDRBenchStruct) AppendXDR(bs []byte) ([]byte, error) {
-	var aw = xdr.AppendWriter(bs)
-	var xw = xdr.NewWriter(&aw)
-	_, err := o.encodeXDR(xw)
-	return []byte(aw), err
-}
-
-func (o XDRBenchStruct) encodeXDR(xw *xdr.Writer) (int, error) {
-	xw.WriteUint64(o.I1)
-	xw.WriteUint32(o.I2)
-	xw.WriteUint16(o.I3)
-	xw.WriteUint8(o.I4)
-	if l := len(o.Bs0); l > 128 {
-		return xw.Tot(), xdr.ElementSizeExceeded("Bs0", l, 128)
-	}
-	xw.WriteBytes(o.Bs0)
-	xw.WriteBytes(o.Bs1)
-	if l := len(o.S0); l > 128 {
-		return xw.Tot(), xdr.ElementSizeExceeded("S0", l, 128)
-	}
-	xw.WriteString(o.S0)
-	xw.WriteString(o.S1)
-	return xw.Tot(), xw.Error()
-}
-
-func (o *XDRBenchStruct) DecodeXDR(r io.Reader) error {
-	xr := xdr.NewReader(r)
-	return o.decodeXDR(xr)
-}
-
-func (o *XDRBenchStruct) UnmarshalXDR(bs []byte) error {
-	var br = bytes.NewReader(bs)
-	var xr = xdr.NewReader(br)
-	return o.decodeXDR(xr)
-}
-
-func (o *XDRBenchStruct) decodeXDR(xr *xdr.Reader) error {
-	o.I1 = xr.ReadUint64()
-	o.I2 = xr.ReadUint32()
-	o.I3 = xr.ReadUint16()
-	o.I4 = xr.ReadUint8()
-	o.Bs0 = xr.ReadBytesMax(128)
-	o.Bs1 = xr.ReadBytes()
-	o.S0 = xr.ReadStringMax(128)
-	o.S1 = xr.ReadString()
-	return xr.Error()
-}
-
-/*
-
-repeatReader Structure:
-
- 0                   1                   2                   3
- 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                        Length of data                         |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-/                                                               /
-\                    data (variable length)                     \
-/                                                               /
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-struct repeatReader {
-	opaque data<>;
-}
-
-*/
-
-func (o repeatReader) EncodeXDR(w io.Writer) (int, error) {
-	var xw = xdr.NewWriter(w)
-	return o.encodeXDR(xw)
-}
-
-func (o repeatReader) MarshalXDR() ([]byte, error) {
-	return o.AppendXDR(make([]byte, 0, 128))
-}
-
-func (o repeatReader) MustMarshalXDR() []byte {
-	bs, err := o.MarshalXDR()
-	if err != nil {
-		panic(err)
-	}
-	return bs
-}
-
-func (o repeatReader) AppendXDR(bs []byte) ([]byte, error) {
-	var aw = xdr.AppendWriter(bs)
-	var xw = xdr.NewWriter(&aw)
-	_, err := o.encodeXDR(xw)
-	return []byte(aw), err
-}
-
-func (o repeatReader) encodeXDR(xw *xdr.Writer) (int, error) {
-	xw.WriteBytes(o.data)
-	return xw.Tot(), xw.Error()
-}
-
-func (o *repeatReader) DecodeXDR(r io.Reader) error {
-	xr := xdr.NewReader(r)
-	return o.decodeXDR(xr)
-}
-
-func (o *repeatReader) UnmarshalXDR(bs []byte) error {
-	var br = bytes.NewReader(bs)
-	var xr = xdr.NewReader(br)
-	return o.decodeXDR(xr)
-}
-
-func (o *repeatReader) decodeXDR(xr *xdr.Reader) error {
-	o.data = xr.ReadBytes()
-	return xr.Error()
-}

Godeps/_workspace/src/github.com/calmh/xdr/cmd/genxdr/main.go

@@ -1,456 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-package main
-
-import (
-	"bytes"
-	"flag"
-	"fmt"
-	"go/ast"
-	"go/format"
-	"go/parser"
-	"go/token"
-	"io"
-	"log"
-	"os"
-	"regexp"
-	"strconv"
-	"strings"
-	"text/template"
-)
-
-type fieldInfo struct {
-	Name      string
-	IsBasic   bool   // handled by one the native Read/WriteUint64 etc functions
-	IsSlice   bool   // field is a slice of FieldType
-	FieldType string // original type of field, i.e. "int"
-	Encoder   string // the encoder name, i.e. "Uint64" for Read/WriteUint64
-	Convert   string // what to convert to when encoding, i.e. "uint64"
-	Max       int    // max size for slices and strings
-}
-
-type structInfo struct {
-	Name   string
-	Fields []fieldInfo
-}
-
-var headerTpl = template.Must(template.New("header").Parse(`// ************************************************************
-// This file is automatically generated by genxdr. Do not edit.
-// ************************************************************
-
-package {{.Package}}
-
-import (
-	"bytes"
-	"io"
-
-	"github.com/calmh/xdr"
-)
-`))
-
-var encodeTpl = template.Must(template.New("encoder").Parse(`
-func (o {{.TypeName}}) EncodeXDR(w io.Writer) (int, error) {
-	var xw = xdr.NewWriter(w)
-	return o.encodeXDR(xw)
-}//+n
-
-func (o {{.TypeName}}) MarshalXDR() ([]byte, error) {
-	return o.AppendXDR(make([]byte, 0, 128))
-}//+n
-
-func (o {{.TypeName}}) MustMarshalXDR() []byte {
-	bs, err := o.MarshalXDR()
-	if err != nil {
-		panic(err)
-	}
-	return bs
-}//+n
-
-func (o {{.TypeName}}) AppendXDR(bs []byte) ([]byte, error) {
-	var aw = xdr.AppendWriter(bs)
-	var xw = xdr.NewWriter(&aw)
-	_, err := o.encodeXDR(xw)
-	return []byte(aw), err
-}//+n
-
-func (o {{.TypeName}}) encodeXDR(xw *xdr.Writer) (int, error) {
-	{{range $fieldInfo := .Fields}}
-		{{if not $fieldInfo.IsSlice}}
-			{{if ne $fieldInfo.Convert ""}}
-				xw.Write{{$fieldInfo.Encoder}}({{$fieldInfo.Convert}}(o.{{$fieldInfo.Name}}))
-			{{else if $fieldInfo.IsBasic}}
-				{{if ge $fieldInfo.Max 1}}
-					if l := len(o.{{$fieldInfo.Name}}); l > {{$fieldInfo.Max}} {
-						return xw.Tot(), xdr.ElementSizeExceeded("{{$fieldInfo.Name}}", l, {{$fieldInfo.Max}})
-					}
-				{{end}}
-				xw.Write{{$fieldInfo.Encoder}}(o.{{$fieldInfo.Name}})
-			{{else}}
-				_, err := o.{{$fieldInfo.Name}}.encodeXDR(xw)
-				if err != nil {
-					return xw.Tot(), err
-				}
-			{{end}}
-		{{else}}
-			{{if ge $fieldInfo.Max 1}}
-				if l := len(o.{{$fieldInfo.Name}}); l > {{$fieldInfo.Max}} {
-					return xw.Tot(), xdr.ElementSizeExceeded("{{$fieldInfo.Name}}", l, {{$fieldInfo.Max}})
-				}
-			{{end}}
-			xw.WriteUint32(uint32(len(o.{{$fieldInfo.Name}})))
-			for i := range o.{{$fieldInfo.Name}} {
-			{{if ne $fieldInfo.Convert ""}}
-				xw.Write{{$fieldInfo.Encoder}}({{$fieldInfo.Convert}}(o.{{$fieldInfo.Name}}[i]))
-			{{else if $fieldInfo.IsBasic}}
-				xw.Write{{$fieldInfo.Encoder}}(o.{{$fieldInfo.Name}}[i])
-			{{else}}
-				_, err := o.{{$fieldInfo.Name}}[i].encodeXDR(xw)
-				if err != nil {
-					return xw.Tot(), err
-				}
-			{{end}}
-			}
-		{{end}}
-	{{end}}
-	return xw.Tot(), xw.Error()
-}//+n
-
-func (o *{{.TypeName}}) DecodeXDR(r io.Reader) error {
-	xr := xdr.NewReader(r)
-	return o.decodeXDR(xr)
-}//+n
-
-func (o *{{.TypeName}}) UnmarshalXDR(bs []byte) error {
-	var br = bytes.NewReader(bs)
-	var xr = xdr.NewReader(br)
-	return o.decodeXDR(xr)
-}//+n
-
-func (o *{{.TypeName}}) decodeXDR(xr *xdr.Reader) error {
-	{{range $fieldInfo := .Fields}}
-		{{if not $fieldInfo.IsSlice}}
-			{{if ne $fieldInfo.Convert ""}}
-				o.{{$fieldInfo.Name}} = {{$fieldInfo.FieldType}}(xr.Read{{$fieldInfo.Encoder}}())
-			{{else if $fieldInfo.IsBasic}}
-				{{if ge $fieldInfo.Max 1}}
-					o.{{$fieldInfo.Name}} = xr.Read{{$fieldInfo.Encoder}}Max({{$fieldInfo.Max}})
-				{{else}}
-					o.{{$fieldInfo.Name}} = xr.Read{{$fieldInfo.Encoder}}()
-				{{end}}
-			{{else}}
-				(&o.{{$fieldInfo.Name}}).decodeXDR(xr)
-			{{end}}
-		{{else}}
-			_{{$fieldInfo.Name}}Size := int(xr.ReadUint32())
-			{{if ge $fieldInfo.Max 1}}
-				if _{{$fieldInfo.Name}}Size > {{$fieldInfo.Max}} {
-					return xdr.ElementSizeExceeded("{{$fieldInfo.Name}}", _{{$fieldInfo.Name}}Size, {{$fieldInfo.Max}})
-				}
-			{{end}}
-			o.{{$fieldInfo.Name}} = make([]{{$fieldInfo.FieldType}}, _{{$fieldInfo.Name}}Size)
-			for i := range o.{{$fieldInfo.Name}} {
-				{{if ne $fieldInfo.Convert ""}}
-					o.{{$fieldInfo.Name}}[i] = {{$fieldInfo.FieldType}}(xr.Read{{$fieldInfo.Encoder}}())
-				{{else if $fieldInfo.IsBasic}}
-					o.{{$fieldInfo.Name}}[i] = xr.Read{{$fieldInfo.Encoder}}()
-				{{else}}
-					(&o.{{$fieldInfo.Name}}[i]).decodeXDR(xr)
-				{{end}}
-			}
-		{{end}}
-	{{end}}
-	return xr.Error()
-}`))
-
-var maxRe = regexp.MustCompile(`\Wmax:(\d+)`)
-
-type typeSet struct {
-	Type    string
-	Encoder string
-}
-
-var xdrEncoders = map[string]typeSet{
-	"int8":   typeSet{"uint8", "Uint8"},
-	"uint8":  typeSet{"", "Uint8"},
-	"int16":  typeSet{"uint16", "Uint16"},
-	"uint16": typeSet{"", "Uint16"},
-	"int32":  typeSet{"uint32", "Uint32"},
-	"uint32": typeSet{"", "Uint32"},
-	"int64":  typeSet{"uint64", "Uint64"},
-	"uint64": typeSet{"", "Uint64"},
-	"int":    typeSet{"uint64", "Uint64"},
-	"string": typeSet{"", "String"},
-	"[]byte": typeSet{"", "Bytes"},
-	"bool":   typeSet{"", "Bool"},
-}
-
-func handleStruct(t *ast.StructType) []fieldInfo {
-	var fs []fieldInfo
-
-	for _, sf := range t.Fields.List {
-		if len(sf.Names) == 0 {
-			// We don't handle anonymous fields
-			continue
-		}
-
-		fn := sf.Names[0].Name
-		var max = 0
-		if sf.Comment != nil {
-			c := sf.Comment.List[0].Text
-			if m := maxRe.FindStringSubmatch(c); m != nil {
-				max, _ = strconv.Atoi(m[1])
-			}
-			if strings.Contains(c, "noencode") {
-				continue
-			}
-		}
-
-		var f fieldInfo
-		switch ft := sf.Type.(type) {
-		case *ast.Ident:
-			tn := ft.Name
-			if enc, ok := xdrEncoders[tn]; ok {
-				f = fieldInfo{
-					Name:      fn,
-					IsBasic:   true,
-					FieldType: tn,
-					Encoder:   enc.Encoder,
-					Convert:   enc.Type,
-					Max:       max,
-				}
-			} else {
-				f = fieldInfo{
-					Name:      fn,
-					IsBasic:   false,
-					FieldType: tn,
-					Max:       max,
-				}
-			}
-
-		case *ast.ArrayType:
-			if ft.Len != nil {
-				// We don't handle arrays
-				continue
-			}
-
-			tn := ft.Elt.(*ast.Ident).Name
-			if enc, ok := xdrEncoders["[]"+tn]; ok {
-				f = fieldInfo{
-					Name:      fn,
-					IsBasic:   true,
-					FieldType: tn,
-					Encoder:   enc.Encoder,
-					Convert:   enc.Type,
-					Max:       max,
-				}
-			} else if enc, ok := xdrEncoders[tn]; ok {
-				f = fieldInfo{
-					Name:      fn,
-					IsBasic:   true,
-					IsSlice:   true,
-					FieldType: tn,
-					Encoder:   enc.Encoder,
-					Convert:   enc.Type,
-					Max:       max,
-				}
-			} else {
-				f = fieldInfo{
-					Name:      fn,
-					IsBasic:   false,
-					IsSlice:   true,
-					FieldType: tn,
-					Max:       max,
-				}
-			}
-		}
-
-		fs = append(fs, f)
-	}
-
-	return fs
-}
-
-func generateCode(output io.Writer, s structInfo) {
-	name := s.Name
-	fs := s.Fields
-
-	var buf bytes.Buffer
-	err := encodeTpl.Execute(&buf, map[string]interface{}{"TypeName": name, "Fields": fs})
-	if err != nil {
-		panic(err)
-	}
-
-	bs := regexp.MustCompile(`(\s*\n)+`).ReplaceAll(buf.Bytes(), []byte("\n"))
-	bs = bytes.Replace(bs, []byte("//+n"), []byte("\n"), -1)
-
-	bs, err = format.Source(bs)
-	if err != nil {
-		panic(err)
-	}
-	fmt.Fprintln(output, string(bs))
-}
-
-func uncamelize(s string) string {
-	return regexp.MustCompile("[a-z][A-Z]").ReplaceAllStringFunc(s, func(camel string) string {
-		return camel[:1] + " " + camel[1:]
-	})
-}
-
-func generateDiagram(output io.Writer, s structInfo) {
-	sn := s.Name
-	fs := s.Fields
-
-	fmt.Fprintln(output, sn+" Structure:")
-	fmt.Fprintln(output)
-	fmt.Fprintln(output, " 0                   1                   2                   3")
-	fmt.Fprintln(output, " 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1")
-	line := "+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"
-	fmt.Fprintln(output, line)
-
-	for _, f := range fs {
-		tn := f.FieldType
-		sl := f.IsSlice
-		name := uncamelize(f.Name)
-
-		if sl {
-			fmt.Fprintf(output, "| %s |\n", center("Number of "+name, 61))
-			fmt.Fprintln(output, line)
-		}
-		switch tn {
-		case "bool":
-			fmt.Fprintf(output, "| %s |V|\n", center(name+" (V=0 or 1)", 59))
-			fmt.Fprintln(output, line)
-		case "int16", "uint16":
-			fmt.Fprintf(output, "| %s | %s |\n", center("0x0000", 29), center(name, 29))
-			fmt.Fprintln(output, line)
-		case "int32", "uint32":
-			fmt.Fprintf(output, "| %s |\n", center(name, 61))
-			fmt.Fprintln(output, line)
-		case "int64", "uint64":
-			fmt.Fprintf(output, "| %-61s |\n", "")
-			fmt.Fprintf(output, "+ %s +\n", center(name+" (64 bits)", 61))
-			fmt.Fprintf(output, "| %-61s |\n", "")
-			fmt.Fprintln(output, line)
-		case "string", "byte": // XXX We assume slice of byte!
-			fmt.Fprintf(output, "| %s |\n", center("Length of "+name, 61))
-			fmt.Fprintln(output, line)
-			fmt.Fprintf(output, "/ %61s /\n", "")
-			fmt.Fprintf(output, "\\ %s \\\n", center(name+" (variable length)", 61))
-			fmt.Fprintf(output, "/ %61s /\n", "")
-			fmt.Fprintln(output, line)
-		default:
-			if sl {
-				tn = "Zero or more " + tn + " Structures"
-				fmt.Fprintf(output, "/ %s /\n", center("", 61))
-				fmt.Fprintf(output, "\\ %s \\\n", center(tn, 61))
-				fmt.Fprintf(output, "/ %s /\n", center("", 61))
-			} else {
-				fmt.Fprintf(output, "| %s |\n", center(tn, 61))
-			}
-			fmt.Fprintln(output, line)
-		}
-	}
-	fmt.Fprintln(output)
-	fmt.Fprintln(output)
-}
-
-func generateXdr(output io.Writer, s structInfo) {
-	sn := s.Name
-	fs := s.Fields
-
-	fmt.Fprintf(output, "struct %s {\n", sn)
-
-	for _, f := range fs {
-		tn := f.FieldType
-		fn := f.Name
-		suf := ""
-		l := ""
-		if f.Max > 0 {
-			l = strconv.Itoa(f.Max)
-		}
-		if f.IsSlice {
-			suf = "<" + l + ">"
-		}
-
-		switch tn {
-		case "int16", "int32":
-			fmt.Fprintf(output, "\tint %s%s;\n", fn, suf)
-		case "uint16", "uint32":
-			fmt.Fprintf(output, "\tunsigned int %s%s;\n", fn, suf)
-		case "int64":
-			fmt.Fprintf(output, "\thyper %s%s;\n", fn, suf)
-		case "uint64":
-			fmt.Fprintf(output, "\tunsigned hyper %s%s;\n", fn, suf)
-		case "string":
-			fmt.Fprintf(output, "\tstring %s<%s>;\n", fn, l)
-		case "byte":
-			fmt.Fprintf(output, "\topaque %s<%s>;\n", fn, l)
-		default:
-			fmt.Fprintf(output, "\t%s %s%s;\n", tn, fn, suf)
-		}
-	}
-	fmt.Fprintln(output, "}")
-	fmt.Fprintln(output)
-}
-
-func center(s string, w int) string {
-	w -= len(s)
-	l := w / 2
-	r := l
-	if l+r < w {
-		r++
-	}
-	return strings.Repeat(" ", l) + s + strings.Repeat(" ", r)
-}
-
-func inspector(structs *[]structInfo) func(ast.Node) bool {
-	return func(n ast.Node) bool {
-		switch n := n.(type) {
-		case *ast.TypeSpec:
-			switch t := n.Type.(type) {
-			case *ast.StructType:
-				name := n.Name.Name
-				fs := handleStruct(t)
-				*structs = append(*structs, structInfo{name, fs})
-			}
-			return false
-		default:
-			return true
-		}
-	}
-}
-
-func main() {
-	outputFile := flag.String("o", "", "Output file, blank for stdout")
-	flag.Parse()
-	fname := flag.Arg(0)
-
-	fset := token.NewFileSet()
-	f, err := parser.ParseFile(fset, fname, nil, parser.ParseComments)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	var structs []structInfo
-	i := inspector(&structs)
-	ast.Inspect(f, i)
-
-	var output io.Writer = os.Stdout
-	if *outputFile != "" {
-		fd, err := os.Create(*outputFile)
-		if err != nil {
-			log.Fatal(err)
-		}
-		output = fd
-	}
-
-	headerTpl.Execute(output, map[string]string{"Package": f.Name.Name})
-	for _, s := range structs {
-		fmt.Fprintf(output, "\n/*\n\n")
-		generateDiagram(output, s)
-		generateXdr(output, s)
-		fmt.Fprintf(output, "*/\n")
-		generateCode(output, s)
-	}
-}

Godeps/_workspace/src/github.com/calmh/xdr/debug.go

@@ -1,16 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-package xdr
-
-import (
-	"log"
-	"os"
-)
-
-var (
-	debug = len(os.Getenv("XDRTRACE")) > 0
-	dl    = log.New(os.Stdout, "xdr: ", log.Lshortfile|log.Ltime|log.Lmicroseconds)
-)
-
-const maxDebugBytes = 32

Godeps/_workspace/src/github.com/calmh/xdr/doc.go

@@ -1,5 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-// Package xdr implements an XDR (RFC 4506) encoder/decoder.
-package xdr

Godeps/_workspace/src/github.com/calmh/xdr/encdec_test.go

@@ -1,79 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-package xdr_test
-
-import (
-	"bytes"
-	"math/rand"
-	"reflect"
-	"testing"
-	"testing/quick"
-
-	"github.com/calmh/xdr"
-)
-
-// Contains all supported types
-type TestStruct struct {
-	I    int
-	I8   int8
-	UI8  uint8
-	I16  int16
-	UI16 uint16
-	I32  int32
-	UI32 uint32
-	I64  int64
-	UI64 uint64
-	BS   []byte // max:1024
-	S    string // max:1024
-	C    Opaque
-	SS   []string // max:1024
-}
-
-type Opaque [32]byte
-
-func (u *Opaque) encodeXDR(w *xdr.Writer) (int, error) {
-	return w.WriteRaw(u[:])
-}
-
-func (u *Opaque) decodeXDR(r *xdr.Reader) (int, error) {
-	return r.ReadRaw(u[:])
-}
-
-func (Opaque) Generate(rand *rand.Rand, size int) reflect.Value {
-	var u Opaque
-	for i := range u[:] {
-		u[i] = byte(rand.Int())
-	}
-	return reflect.ValueOf(u)
-}
-
-func TestEncDec(t *testing.T) {
-	fn := func(t0 TestStruct) bool {
-		bs, err := t0.MarshalXDR()
-		if err != nil {
-			t.Fatal(err)
-		}
-		var t1 TestStruct
-		err = t1.UnmarshalXDR(bs)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		// Not comparing with DeepEqual since we'll unmarshal nil slices as empty
-		if t0.I != t1.I ||
-			t0.I16 != t1.I16 || t0.UI16 != t1.UI16 ||
-			t0.I32 != t1.I32 || t0.UI32 != t1.UI32 ||
-			t0.I64 != t1.I64 || t0.UI64 != t1.UI64 ||
-			bytes.Compare(t0.BS, t1.BS) != 0 ||
-			t0.S != t1.S || t0.C != t1.C {
-			t.Logf("%#v", t0)
-			t.Logf("%#v", t1)
-			return false
-		}
-		return true
-	}
-	if err := quick.Check(fn, nil); err != nil {
-		t.Error(err)
-	}
-}

Godeps/_workspace/src/github.com/calmh/xdr/encdec_xdr_test.go

@@ -1,174 +0,0 @@
-// ************************************************************
-// This file is automatically generated by genxdr. Do not edit.
-// ************************************************************
-
-package xdr_test
-
-import (
-	"bytes"
-	"io"
-
-	"github.com/calmh/xdr"
-)
-
-/*
-
-TestStruct Structure:
-
- 0                   1                   2                   3
- 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                              int                              |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                             int8                              |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                             uint8                             |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                             int16                             |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|            0x0000             |             UI16              |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                             int32                             |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                             UI32                              |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                                                               |
-+                         I64 (64 bits)                         +
-|                                                               |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                                                               |
-+                        UI64 (64 bits)                         +
-|                                                               |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                         Length of BS                          |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-/                                                               /
-\                     BS (variable length)                      \
-/                                                               /
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                          Length of S                          |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-/                                                               /
-\                      S (variable length)                      \
-/                                                               /
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                            Opaque                             |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                         Number of SS                          |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-|                         Length of SS                          |
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-/                                                               /
-\                     SS (variable length)                      \
-/                                                               /
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-struct TestStruct {
-	int I;
-	int8 I8;
-	uint8 UI8;
-	int16 I16;
-	unsigned int UI16;
-	int32 I32;
-	unsigned int UI32;
-	hyper I64;
-	unsigned hyper UI64;
-	opaque BS<1024>;
-	string S<1024>;
-	Opaque C;
-	string SS<1024>;
-}
-
-*/
-
-func (o TestStruct) EncodeXDR(w io.Writer) (int, error) {
-	var xw = xdr.NewWriter(w)
-	return o.encodeXDR(xw)
-}
-
-func (o TestStruct) MarshalXDR() ([]byte, error) {
-	return o.AppendXDR(make([]byte, 0, 128))
-}
-
-func (o TestStruct) MustMarshalXDR() []byte {
-	bs, err := o.MarshalXDR()
-	if err != nil {
-		panic(err)
-	}
-	return bs
-}
-
-func (o TestStruct) AppendXDR(bs []byte) ([]byte, error) {
-	var aw = xdr.AppendWriter(bs)
-	var xw = xdr.NewWriter(&aw)
-	_, err := o.encodeXDR(xw)
-	return []byte(aw), err
-}
-
-func (o TestStruct) encodeXDR(xw *xdr.Writer) (int, error) {
-	xw.WriteUint64(uint64(o.I))
-	xw.WriteUint8(uint8(o.I8))
-	xw.WriteUint8(o.UI8)
-	xw.WriteUint16(uint16(o.I16))
-	xw.WriteUint16(o.UI16)
-	xw.WriteUint32(uint32(o.I32))
-	xw.WriteUint32(o.UI32)
-	xw.WriteUint64(uint64(o.I64))
-	xw.WriteUint64(o.UI64)
-	if l := len(o.BS); l > 1024 {
-		return xw.Tot(), xdr.ElementSizeExceeded("BS", l, 1024)
-	}
-	xw.WriteBytes(o.BS)
-	if l := len(o.S); l > 1024 {
-		return xw.Tot(), xdr.ElementSizeExceeded("S", l, 1024)
-	}
-	xw.WriteString(o.S)
-	_, err := o.C.encodeXDR(xw)
-	if err != nil {
-		return xw.Tot(), err
-	}
-	if l := len(o.SS); l > 1024 {
-		return xw.Tot(), xdr.ElementSizeExceeded("SS", l, 1024)
-	}
-	xw.WriteUint32(uint32(len(o.SS)))
-	for i := range o.SS {
-		xw.WriteString(o.SS[i])
-	}
-	return xw.Tot(), xw.Error()
-}
-
-func (o *TestStruct) DecodeXDR(r io.Reader) error {
-	xr := xdr.NewReader(r)
-	return o.decodeXDR(xr)
-}
-
-func (o *TestStruct) UnmarshalXDR(bs []byte) error {
-	var br = bytes.NewReader(bs)
-	var xr = xdr.NewReader(br)
-	return o.decodeXDR(xr)
-}
-
-func (o *TestStruct) decodeXDR(xr *xdr.Reader) error {
-	o.I = int(xr.ReadUint64())
-	o.I8 = int8(xr.ReadUint8())
-	o.UI8 = xr.ReadUint8()
-	o.I16 = int16(xr.ReadUint16())
-	o.UI16 = xr.ReadUint16()
-	o.I32 = int32(xr.ReadUint32())
-	o.UI32 = xr.ReadUint32()
-	o.I64 = int64(xr.ReadUint64())
-	o.UI64 = xr.ReadUint64()
-	o.BS = xr.ReadBytesMax(1024)
-	o.S = xr.ReadStringMax(1024)
-	(&o.C).decodeXDR(xr)
-	_SSSize := int(xr.ReadUint32())
-	if _SSSize > 1024 {
-		return xdr.ElementSizeExceeded("SS", _SSSize, 1024)
-	}
-	o.SS = make([]string, _SSSize)
-	for i := range o.SS {
-		o.SS[i] = xr.ReadString()
-	}
-	return xr.Error()
-}

Godeps/_workspace/src/github.com/calmh/xdr/generate.sh

@@ -1,4 +0,0 @@
-#!/bin/sh
-
-go run cmd/genxdr/main.go -- bench_test.go > bench_xdr_test.go
-go run cmd/genxdr/main.go -- encdec_test.go > encdec_xdr_test.go

Godeps/_workspace/src/github.com/calmh/xdr/pad_ipdr.go

@@ -1,10 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-// +build ipdr
-
-package xdr
-
-func pad(l int) int {
-	return 0
-}

Godeps/_workspace/src/github.com/calmh/xdr/pad_xdr.go

@@ -1,14 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-// +build !ipdr
-
-package xdr
-
-func pad(l int) int {
-	d := l % 4
-	if d == 0 {
-		return 0
-	}
-	return 4 - d
-}

Godeps/_workspace/src/github.com/calmh/xdr/reader.go

@@ -1,170 +0,0 @@
-// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
-// All rights reserved. Use of this source code is governed by an MIT-style
-// license that can be found in the LICENSE file.
-
-package xdr
-
-import (
-	"fmt"
-	"io"
-	"reflect"
-	"unsafe"
-)
-
-type Reader struct {
-	r   io.Reader
-	err error
-	b   [8]byte
-}
-
-func NewReader(r io.Reader) *Reader {
-	return &Reader{
-		r: r,
-	}
-}
-
-func (r *Reader) ReadRaw(bs []byte) (int, error) {
-	if r.err != nil {
-		return 0, r.err
-	}
-
-	var n int
-	n, r.err = io.ReadFull(r.r, bs)
-	return n, r.err
-}
-
-func (r *Reader) ReadString() string {
-	return r.ReadStringMax(0)
-}
-
-func (r *Reader) ReadStringMax(max int) string {
-	buf := r.ReadBytesMaxInto(max, nil)
-	bh := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
-	sh := reflect.StringHeader{
-		Data: bh.Data,
-		Len:  bh.Len,
-	}
-	return *((*string)(unsafe.Pointer(&sh)))
-}
-
-func (r *Reader) ReadBytes() []byte {
-	return r.ReadBytesInto(nil)
-}
-
-func (r *Reader) ReadBytesMax(max int) []byte {
-	return r.ReadBytesMaxInto(max, nil)
-}
-
-func (r *Reader) ReadBytesInto(dst []byte) []byte {
-	return r.ReadBytesMaxInto(0, dst)
-}
-
-func (r *Reader) ReadBytesMaxInto(max int, dst []byte) []byte {
-	if r.err != nil {
-		return nil
-	}
-
-	l := int(r.ReadUint32())
-	if r.err != nil {
-		return nil
-	}
-	if max > 0 && l > max {
-		r.err = ElementSizeExceeded("bytes field", l, max)
-		return nil
-	}
-
-	if fullLen := l + pad(l); fullLen > len(dst) {
-		dst = make([]byte, fullLen)
-	} else {
-		dst = dst[:fullLen]
-	}
-
-	var n int
-	n, r.err = io.ReadFull(r.r, dst)
-	if r.err != nil {
-		if debug {
-			dl.Printf("rd bytes (%d): %v", len(dst), r.err)
-		}
-		return nil
-	}
-
-	if debug {
-		if n > maxDebugBytes {
-			dl.Printf("rd bytes (%d): %x...", len(dst), dst[:maxDebugBytes])
-		} else {
-			dl.Printf("rd bytes (%d): %x", len(dst), dst)
-		}
-	}
-	return dst[:l]
-}
-
-func (r *Reader) ReadBool() bool {
-	return r.ReadUint8() != 0
-}
-
-func (r *Reader) ReadUint32() uint32 {
-	if r.err != nil {
-		return 0
-	}
-
-	_, r.err = io.ReadFull(r.r, r.b[:4])
-	if r.err != nil {
-		if debug {
-			dl.Printf("rd uint32: %v", r.err)
-		}
-		return 0
-	}
-
-	v := uint32(r.b[3]) | uint32(r.b[2])<<8 | uint32(r.b[1])<<16 | uint32(r.b[0])<<24
-
-	if debug {
-		dl.Printf("rd uint32=%d (0x%08x)", v, v)
-	}
-	return v
-}
-
-func (r *Reader) ReadUint64() uint64 {
-	if r.err != nil {
-		return 0
-	}
-
-	_, r.err = io.ReadFull(r.r, r.b[:8])
-	if r.err != nil {
-		if debug {
-			dl.Printf("rd uint64: %v", r.err)
-		}
-		return 0
-	}
-
-	v := uint64(r.b[7]) | uint64(r.b[6])<<8 | uint64(r.b[5])<<16 | uint64(r.b[4])<<24 |
-		uint64(r.b[3])<<32 | uint64(r.b[2])<<40 | uint64(r.b[1])<<48 | uint64(r.b[0])<<56
-
-	if debug {
-		dl.Printf("rd uint64=%d (0x%016x)", v, v)
-	}
-	return v
-}
-
-type XDRError struct {
-	op  string
-	err error
-}
-
-func (e XDRError) Error() string {
-	return "xdr " + e.op + ": " + e.err.Error()
-}
-
-func (e XDRError) IsEOF() bool {
-	return e.err == io.EOF
-}
-
-func (r *Reader) Error() error {
-	if r.err == nil {
-		return nil
-	}
-	return XDRError{"read", r.err}
-}
-
-func ElementSizeExceeded(field string, size, limit int) error {
-	return fmt.Errorf("%s exceeds size limit; %d > %d", field, size, limit)
-}

Godeps/_workspace/src/github.com/calmh/xdr/reader_ipdr.go

@@ -1,49 +0,0 @@
-// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
-// All rights reserved. Use of this source code is governed by an MIT-style
-// license that can be found in the LICENSE file.
-
-// +build ipdr
-
-package xdr
-
-import "io"
-
-func (r *Reader) ReadUint8() uint8 {
-	if r.err != nil {
-		return 0
-	}
-
-	_, r.err = io.ReadFull(r.r, r.b[:1])
-	if r.err != nil {
-		if debug {
-			dl.Printf("rd uint8: %v", r.err)
-		}
-		return 0
-	}
-
-	if debug {
-		dl.Printf("rd uint8=%d (0x%02x)", r.b[0], r.b[0])
-	}
-	return r.b[0]
-}
-
-func (r *Reader) ReadUint16() uint16 {
-	if r.err != nil {
-		return 0
-	}
-
-	_, r.err = io.ReadFull(r.r, r.b[:2])
-	if r.err != nil {
-		if debug {
-			dl.Printf("rd uint16: %v", r.err)
-		}
-		return 0
-	}
-
-	v := uint16(r.b[1]) | uint16(r.b[0])<<8
-
-	if debug {
-		dl.Printf("rd uint16=%d (0x%04x)", v, v)
-	}
-	return v
-}

Godeps/_workspace/src/github.com/calmh/xdr/reader_xdr.go

@@ -1,15 +0,0 @@
-// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
-// All rights reserved. Use of this source code is governed by an MIT-style
-// license that can be found in the LICENSE file.
-
-// +build !ipdr
-
-package xdr
-
-func (r *Reader) ReadUint8() uint8 {
-	return uint8(r.ReadUint32())
-}
-
-func (r *Reader) ReadUint16() uint16 {
-	return uint16(r.ReadUint32())
-}

Godeps/_workspace/src/github.com/calmh/xdr/refl_test.go

@@ -1,44 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-// +build refl
-
-package xdr_test
-
-import (
-	"bytes"
-	"testing"
-
-	refl "github.com/davecgh/go-xdr/xdr"
-)
-
-func TestCompareMarshals(t *testing.T) {
-	e0 := s.MarshalXDR()
-	e1, err := refl.Marshal(s)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if bytes.Compare(e0, e1) != 0 {
-		t.Fatalf("Encoding mismatch;\n\t%x (this)\n\t%x (refl)", e0, e1)
-	}
-}
-
-func BenchmarkReflMarshal(b *testing.B) {
-	var err error
-	for i := 0; i < b.N; i++ {
-		res, err = refl.Marshal(s)
-		if err != nil {
-			b.Fatal(err)
-		}
-	}
-}
-
-func BenchmarkReflUnmarshal(b *testing.B) {
-	var t XDRBenchStruct
-	for i := 0; i < b.N; i++ {
-		_, err := refl.Unmarshal(e, &t)
-		if err != nil {
-			b.Fatal(err)
-		}
-	}
-}

Godeps/_workspace/src/github.com/calmh/xdr/writer.go

@@ -1,146 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-package xdr
-
-import (
-	"io"
-	"reflect"
-	"unsafe"
-)
-
-var padBytes = []byte{0, 0, 0}
-
-type Writer struct {
-	w   io.Writer
-	tot int
-	err error
-	b   [8]byte
-}
-
-type AppendWriter []byte
-
-func (w *AppendWriter) Write(bs []byte) (int, error) {
-	*w = append(*w, bs...)
-	return len(bs), nil
-}
-
-func NewWriter(w io.Writer) *Writer {
-	return &Writer{
-		w: w,
-	}
-}
-
-func (w *Writer) WriteRaw(bs []byte) (int, error) {
-	if w.err != nil {
-		return 0, w.err
-	}
-
-	var n int
-	n, w.err = w.w.Write(bs)
-	return n, w.err
-}
-
-func (w *Writer) WriteString(s string) (int, error) {
-	sh := *((*reflect.StringHeader)(unsafe.Pointer(&s)))
-	bh := reflect.SliceHeader{
-		Data: sh.Data,
-		Len:  sh.Len,
-		Cap:  sh.Len,
-	}
-	return w.WriteBytes(*(*[]byte)(unsafe.Pointer(&bh)))
-}
-
-func (w *Writer) WriteBytes(bs []byte) (int, error) {
-	if w.err != nil {
-		return 0, w.err
-	}
-
-	w.WriteUint32(uint32(len(bs)))
-	if w.err != nil {
-		return 0, w.err
-	}
-
-	if debug {
-		if len(bs) > maxDebugBytes {
-			dl.Printf("wr bytes (%d): %x...", len(bs), bs[:maxDebugBytes])
-		} else {
-			dl.Printf("wr bytes (%d): %x", len(bs), bs)
-		}
-	}
-
-	var l, n int
-	n, w.err = w.w.Write(bs)
-	l += n
-
-	if p := pad(len(bs)); w.err == nil && p > 0 {
-		n, w.err = w.w.Write(padBytes[:p])
-		l += n
-	}
-
-	w.tot += l
-	return l, w.err
-}
-
-func (w *Writer) WriteBool(v bool) (int, error) {
-	if v {
-		return w.WriteUint8(1)
-	} else {
-		return w.WriteUint8(0)
-	}
-}
-
-func (w *Writer) WriteUint32(v uint32) (int, error) {
-	if w.err != nil {
-		return 0, w.err
-	}
-
-	if debug {
-		dl.Printf("wr uint32=%d", v)
-	}
-
-	w.b[0] = byte(v >> 24)
-	w.b[1] = byte(v >> 16)
-	w.b[2] = byte(v >> 8)
-	w.b[3] = byte(v)
-
-	var l int
-	l, w.err = w.w.Write(w.b[:4])
-	w.tot += l
-	return l, w.err
-}
-
-func (w *Writer) WriteUint64(v uint64) (int, error) {
-	if w.err != nil {
-		return 0, w.err
-	}
-
-	if debug {
-		dl.Printf("wr uint64=%d", v)
-	}
-
-	w.b[0] = byte(v >> 56)
-	w.b[1] = byte(v >> 48)
-	w.b[2] = byte(v >> 40)
-	w.b[3] = byte(v >> 32)
-	w.b[4] = byte(v >> 24)
-	w.b[5] = byte(v >> 16)
-	w.b[6] = byte(v >> 8)
-	w.b[7] = byte(v)
-
-	var l int
-	l, w.err = w.w.Write(w.b[:8])
-	w.tot += l
-	return l, w.err
-}
-
-func (w *Writer) Tot() int {
-	return w.tot
-}
-
-func (w *Writer) Error() error {
-	if w.err == nil {
-		return nil
-	}
-	return XDRError{"write", w.err}
-}

Godeps/_workspace/src/github.com/calmh/xdr/writer_ipdr.go

@@ -1,41 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-// +build ipdr
-
-package xdr
-
-func (w *Writer) WriteUint8(v uint8) (int, error) {
-	if w.err != nil {
-		return 0, w.err
-	}
-
-	if debug {
-		dl.Printf("wr uint8=%d", v)
-	}
-
-	w.b[0] = byte(v)
-
-	var l int
-	l, w.err = w.w.Write(w.b[:1])
-	w.tot += l
-	return l, w.err
-}
-
-func (w *Writer) WriteUint16(v uint16) (int, error) {
-	if w.err != nil {
-		return 0, w.err
-	}
-
-	if debug {
-		dl.Printf("wr uint8=%d", v)
-	}
-
-	w.b[0] = byte(v >> 8)
-	w.b[1] = byte(v)
-
-	var l int
-	l, w.err = w.w.Write(w.b[:2])
-	w.tot += l
-	return l, w.err
-}

Godeps/_workspace/src/github.com/calmh/xdr/writer_xdr.go

@@ -1,14 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-// +build !ipdr
-
-package xdr
-
-func (w *Writer) WriteUint8(v uint8) (int, error) {
-	return w.WriteUint32(uint32(v))
-}
-
-func (w *Writer) WriteUint16(v uint16) (int, error) {
-	return w.WriteUint32(uint32(v))
-}

Godeps/_workspace/src/github.com/calmh/xdr/xdr_test.go

@@ -1,93 +0,0 @@
-// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
-// is governed by an MIT-style license that can be found in the LICENSE file.
-
-package xdr
-
-import (
-	"bytes"
-	"strings"
-	"testing"
-	"testing/quick"
-)
-
-func TestBytesNil(t *testing.T) {
-	fn := func(bs []byte) bool {
-		var b = new(bytes.Buffer)
-		var w = NewWriter(b)
-		var r = NewReader(b)
-		w.WriteBytes(bs)
-		w.WriteBytes(bs)
-		r.ReadBytes()
-		res := r.ReadBytes()
-		return bytes.Compare(bs, res) == 0
-	}
-	if err := quick.Check(fn, nil); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestBytesGiven(t *testing.T) {
-	fn := func(bs []byte) bool {
-		var b = new(bytes.Buffer)
-		var w = NewWriter(b)
-		var r = NewReader(b)
-		w.WriteBytes(bs)
-		w.WriteBytes(bs)
-		res := make([]byte, 12)
-		res = r.ReadBytesInto(res)
-		res = r.ReadBytesInto(res)
-		return bytes.Compare(bs, res) == 0
-	}
-	if err := quick.Check(fn, nil); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestReadBytesMaxInto(t *testing.T) {
-	var max = 64
-	for tot := 32; tot < 128; tot++ {
-		for diff := -32; diff <= 32; diff++ {
-			var b = new(bytes.Buffer)
-			var r = NewReader(b)
-			var w = NewWriter(b)
-
-			var toWrite = make([]byte, tot)
-			w.WriteBytes(toWrite)
-
-			var buf = make([]byte, tot+diff)
-			var bs = r.ReadBytesMaxInto(max, buf)
-
-			if tot <= max {
-				if read := len(bs); read != tot {
-					t.Errorf("Incorrect read bytes, wrote=%d, buf=%d, max=%d, read=%d", tot, tot+diff, max, read)
-				}
-			} else if !strings.Contains(r.err.Error(), "exceeds size") {
-				t.Errorf("Unexpected non-ErrElementSizeExceeded error for wrote=%d, max=%d: %v", tot, max, r.err)
-			}
-		}
-	}
-}
-
-func TestReadStringMax(t *testing.T) {
-	for tot := 42; tot < 72; tot++ {
-		for max := 0; max < 128; max++ {
-			var b = new(bytes.Buffer)
-			var r = NewReader(b)
-			var w = NewWriter(b)
-
-			var toWrite = make([]byte, tot)
-			w.WriteBytes(toWrite)
-
-			var str = r.ReadStringMax(max)
-			var read = len(str)
-
-			if max == 0 || tot <= max {
-				if read != tot {
-					t.Errorf("Incorrect read bytes, wrote=%d, max=%d, read=%d", tot, max, read)
-				}
-			} else if !strings.Contains(r.err.Error(), "exceeds size") {
-				t.Errorf("Unexpected non-ErrElementSizeExceeded error for wrote=%d, max=%d, read=%d: %v", tot, max, read, r.err)
-			}
-		}
-	}
-}

Godeps/_workspace/src/github.com/juju/ratelimit/LICENSE

@@ -1,185 +0,0 @@
-This software is licensed under the LGPLv3, included below.
-
-As a special exception to the GNU Lesser General Public License version 3
-("LGPL3"), the copyright holders of this Library give you permission to
-convey to a third party a Combined Work that links statically or dynamically
-to this Library without providing any Minimal Corresponding Source or
-Minimal Application Code as set out in 4d or providing the installation
-information set out in section 4e, provided that you comply with the other
-provisions of LGPL3 and provided that you meet, for the Application the
-terms and conditions of the license(s) which apply to the Application.
-
-Except as stated in this special exception, the provisions of LGPL3 will
-continue to comply in full to this Library. If you modify this Library, you
-may apply this exception to your version of this Library, but you are not
-obliged to do so. If you do not wish to do so, delete this exception
-statement from your version. This exception does not (and cannot) modify any
-license terms which apply to the Application, with which you must still
-comply.
-
-
-                   GNU LESSER GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-
-  This version of the GNU Lesser General Public License incorporates
-the terms and conditions of version 3 of the GNU General Public
-License, supplemented by the additional permissions listed below.
-
-  0. Additional Definitions.
-
-  As used herein, "this License" refers to version 3 of the GNU Lesser
-General Public License, and the "GNU GPL" refers to version 3 of the GNU
-General Public License.
-
-  "The Library" refers to a covered work governed by this License,
-other than an Application or a Combined Work as defined below.
-
-  An "Application" is any work that makes use of an interface provided
-by the Library, but which is not otherwise based on the Library.
-Defining a subclass of a class defined by the Library is deemed a mode
-of using an interface provided by the Library.
-
-  A "Combined Work" is a work produced by combining or linking an
-Application with the Library.  The particular version of the Library
-with which the Combined Work was made is also called the "Linked
-Version".
-
-  The "Minimal Corresponding Source" for a Combined Work means the
-Corresponding Source for the Combined Work, excluding any source code
-for portions of the Combined Work that, considered in isolation, are
-based on the Application, and not on the Linked Version.
-
-  The "Corresponding Application Code" for a Combined Work means the
-object code and/or source code for the Application, including any data
-and utility programs needed for reproducing the Combined Work from the
-Application, but excluding the System Libraries of the Combined Work.
-
-  1. Exception to Section 3 of the GNU GPL.
-
-  You may convey a covered work under sections 3 and 4 of this License
-without being bound by section 3 of the GNU GPL.
-
-  2. Conveying Modified Versions.
-
-  If you modify a copy of the Library, and, in your modifications, a
-facility refers to a function or data to be supplied by an Application
-that uses the facility (other than as an argument passed when the
-facility is invoked), then you may convey a copy of the modified
-version:
-
-   a) under this License, provided that you make a good faith effort to
-   ensure that, in the event an Application does not supply the
-   function or data, the facility still operates, and performs
-   whatever part of its purpose remains meaningful, or
-
-   b) under the GNU GPL, with none of the additional permissions of
-   this License applicable to that copy.
-
-  3. Object Code Incorporating Material from Library Header Files.
-
-  The object code form of an Application may incorporate material from
-a header file that is part of the Library.  You may convey such object
-code under terms of your choice, provided that, if the incorporated
-material is not limited to numerical parameters, data structure
-layouts and accessors, or small macros, inline functions and templates
-(ten or fewer lines in length), you do both of the following:
-
-   a) Give prominent notice with each copy of the object code that the
-   Library is used in it and that the Library and its use are
-   covered by this License.
-
-   b) Accompany the object code with a copy of the GNU GPL and this license
-   document.
-
-  4. Combined Works.
-
-  You may convey a Combined Work under terms of your choice that,
-taken together, effectively do not restrict modification of the
-portions of the Library contained in the Combined Work and reverse
-engineering for debugging such modifications, if you also do each of
-the following:
-
-   a) Give prominent notice with each copy of the Combined Work that
-   the Library is used in it and that the Library and its use are
-   covered by this License.
-
-   b) Accompany the Combined Work with a copy of the GNU GPL and this license
-   document.
-
-   c) For a Combined Work that displays copyright notices during
-   execution, include the copyright notice for the Library among
-   these notices, as well as a reference directing the user to the
-   copies of the GNU GPL and this license document.
-
-   d) Do one of the following:
-
-       0) Convey the Minimal Corresponding Source under the terms of this
-       License, and the Corresponding Application Code in a form
-       suitable for, and under terms that permit, the user to
-       recombine or relink the Application with a modified version of
-       the Linked Version to produce a modified Combined Work, in the
-       manner specified by section 6 of the GNU GPL for conveying
-       Corresponding Source.
-
-       1) Use a suitable shared library mechanism for linking with the
-       Library.  A suitable mechanism is one that (a) uses at run time
-       a copy of the Library already present on the user's computer
-       system, and (b) will operate properly with a modified version
-       of the Library that is interface-compatible with the Linked
-       Version.
-
-   e) Provide Installation Information, but only if you would otherwise
-   be required to provide such information under section 6 of the
-   GNU GPL, and only to the extent that such information is
-   necessary to install and execute a modified version of the
-   Combined Work produced by recombining or relinking the
-   Application with a modified version of the Linked Version. (If
-   you use option 4d0, the Installation Information must accompany
-   the Minimal Corresponding Source and Corresponding Application
-   Code. If you use option 4d1, you must provide the Installation
-   Information in the manner specified by section 6 of the GNU GPL
-   for conveying Corresponding Source.)
-
-  5. Combined Libraries.
-
-  You may place library facilities that are a work based on the
-Library side by side in a single library together with other library
-facilities that are not Applications and are not covered by this
-License, and convey such a combined library under terms of your
-choice, if you do both of the following:
-
-   a) Accompany the combined library with a copy of the same work based
-   on the Library, uncombined with any other library facilities,
-   conveyed under the terms of this License.
-
-   b) Give prominent notice with the combined library that part of it
-   is a work based on the Library, and explaining where to find the
-   accompanying uncombined form of the same work.
-
-  6. Revised Versions of the GNU Lesser General Public License.
-
-  The Free Software Foundation may publish revised and/or new versions
-of the GNU Lesser General Public License from time to time. Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns.
-
-  Each version is given a distinguishing version number. If the
-Library as you received it specifies that a certain numbered version
-of the GNU Lesser General Public License "or any later version"
-applies to it, you have the option of following the terms and
-conditions either of that published version or of any later version
-published by the Free Software Foundation. If the Library as you
-received it does not specify a version number of the GNU Lesser
-General Public License, you may choose any version of the GNU Lesser
-General Public License ever published by the Free Software Foundation.
-
-  If the Library as you received it specifies that a proxy can decide
-whether future versions of the GNU Lesser General Public License shall
-apply, that proxy's public statement of acceptance of any version is
-permanent authorization for you to choose that version for the
-Library.

Godeps/_workspace/src/github.com/juju/ratelimit/README.md

@@ -1,117 +0,0 @@
-# ratelimit
---
-    import "github.com/juju/ratelimit"
-
-The ratelimit package provides an efficient token bucket implementation. See
-http://en.wikipedia.org/wiki/Token_bucket.
-
-## Usage
-
-#### func  Reader
-
-```go
-func Reader(r io.Reader, bucket *Bucket) io.Reader
-```
-Reader returns a reader that is rate limited by the given token bucket. Each
-token in the bucket represents one byte.
-
-#### func  Writer
-
-```go
-func Writer(w io.Writer, bucket *Bucket) io.Writer
-```
-Writer returns a reader that is rate limited by the given token bucket. Each
-token in the bucket represents one byte.
-
-#### type Bucket
-
-```go
-type Bucket struct {
-}
-```
-
-Bucket represents a token bucket that fills at a predetermined rate. Methods on
-Bucket may be called concurrently.
-
-#### func  NewBucket
-
-```go
-func NewBucket(fillInterval time.Duration, capacity int64) *Bucket
-```
-NewBucket returns a new token bucket that fills at the rate of one token every
-fillInterval, up to the given maximum capacity. Both arguments must be positive.
-The bucket is initially full.
-
-#### func  NewBucketWithQuantum
-
-```go
-func NewBucketWithQuantum(fillInterval time.Duration, capacity, quantum int64) *Bucket
-```
-NewBucketWithQuantum is similar to NewBucket, but allows the specification of
-the quantum size - quantum tokens are added every fillInterval.
-
-#### func  NewBucketWithRate
-
-```go
-func NewBucketWithRate(rate float64, capacity int64) *Bucket
-```
-NewBucketWithRate returns a token bucket that fills the bucket at the rate of
-rate tokens per second up to the given maximum capacity. Because of limited
-clock resolution, at high rates, the actual rate may be up to 1% different from
-the specified rate.
-
-#### func (*Bucket) Rate
-
-```go
-func (tb *Bucket) Rate() float64
-```
-Rate returns the fill rate of the bucket, in tokens per second.
-
-#### func (*Bucket) Take
-
-```go
-func (tb *Bucket) Take(count int64) time.Duration
-```
-Take takes count tokens from the bucket without blocking. It returns the time
-that the caller should wait until the tokens are actually available.
-
-Note that if the request is irrevocable - there is no way to return tokens to
-the bucket once this method commits us to taking them.
-
-#### func (*Bucket) TakeAvailable
-
-```go
-func (tb *Bucket) TakeAvailable(count int64) int64
-```
-TakeAvailable takes up to count immediately available tokens from the bucket. It
-returns the number of tokens removed, or zero if there are no available tokens.
-It does not block.
-
-#### func (*Bucket) TakeMaxDuration
-
-```go
-func (tb *Bucket) TakeMaxDuration(count int64, maxWait time.Duration) (time.Duration, bool)
-```
-TakeMaxDuration is like Take, except that it will only take tokens from the
-bucket if the wait time for the tokens is no greater than maxWait.
-
-If it would take longer than maxWait for the tokens to become available, it does
-nothing and reports false, otherwise it returns the time that the caller should
-wait until the tokens are actually available, and reports true.
-
-#### func (*Bucket) Wait
-
-```go
-func (tb *Bucket) Wait(count int64)
-```
-Wait takes count tokens from the bucket, waiting until they are available.
-
-#### func (*Bucket) WaitMaxDuration
-
-```go
-func (tb *Bucket) WaitMaxDuration(count int64, maxWait time.Duration) bool
-```
-WaitMaxDuration is like Wait except that it will only take tokens from the
-bucket if it needs to wait for no greater than maxWait. It reports whether any
-tokens have been removed from the bucket If no tokens have been removed, it
-returns immediately.

Godeps/_workspace/src/github.com/juju/ratelimit/ratelimit.go

@@ -1,226 +0,0 @@
-// Copyright 2014 Canonical Ltd.
-// Licensed under the LGPLv3 with static-linking exception.
-// See LICENCE file for details.
-
-// The ratelimit package provides an efficient token bucket implementation.
-// See http://en.wikipedia.org/wiki/Token_bucket.
-package ratelimit
-
-import (
-	"strconv"
-	"sync"
-	"time"
-)
-
-// Bucket represents a token bucket that fills at a predetermined rate.
-// Methods on Bucket may be called concurrently.
-type Bucket struct {
-	startTime    time.Time
-	capacity     int64
-	quantum      int64
-	fillInterval time.Duration
-
-	// The mutex guards the fields following it.
-	mu sync.Mutex
-
-	// avail holds the number of available tokens
-	// in the bucket, as of availTick ticks from startTime.
-	// It will be negative when there are consumers
-	// waiting for tokens.
-	avail     int64
-	availTick int64
-}
-
-// NewBucket returns a new token bucket that fills at the
-// rate of one token every fillInterval, up to the given
-// maximum capacity. Both arguments must be
-// positive. The bucket is initially full.
-func NewBucket(fillInterval time.Duration, capacity int64) *Bucket {
-	return NewBucketWithQuantum(fillInterval, capacity, 1)
-}
-
-// rateMargin specifes the allowed variance of actual
-// rate from specified rate. 1% seems reasonable.
-const rateMargin = 0.01
-
-// NewBucketWithRate returns a token bucket that fills the bucket
-// at the rate of rate tokens per second up to the given
-// maximum capacity. Because of limited clock resolution,
-// at high rates, the actual rate may be up to 1% different from the
-// specified rate.
-func NewBucketWithRate(rate float64, capacity int64) *Bucket {
-	for quantum := int64(1); quantum < 1<<50; quantum = nextQuantum(quantum) {
-		fillInterval := time.Duration(1e9 * float64(quantum) / rate)
-		if fillInterval <= 0 {
-			continue
-		}
-		tb := NewBucketWithQuantum(fillInterval, capacity, quantum)
-		if diff := abs(tb.Rate() - rate); diff/rate <= rateMargin {
-			return tb
-		}
-	}
-	panic("cannot find suitable quantum for " + strconv.FormatFloat(rate, 'g', -1, 64))
-}
-
-// nextQuantum returns the next quantum to try after q.
-// We grow the quantum exponentially, but slowly, so we
-// get a good fit in the lower numbers.
-func nextQuantum(q int64) int64 {
-	q1 := q * 11 / 10
-	if q1 == q {
-		q1++
-	}
-	return q1
-}
-
-// NewBucketWithQuantum is similar to NewBucket, but allows
-// the specification of the quantum size - quantum tokens
-// are added every fillInterval.
-func NewBucketWithQuantum(fillInterval time.Duration, capacity, quantum int64) *Bucket {
-	if fillInterval <= 0 {
-		panic("token bucket fill interval is not > 0")
-	}
-	if capacity <= 0 {
-		panic("token bucket capacity is not > 0")
-	}
-	if quantum <= 0 {
-		panic("token bucket quantum is not > 0")
-	}
-	return &Bucket{
-		startTime:    time.Now(),
-		capacity:     capacity,
-		quantum:      quantum,
-		avail:        capacity,
-		fillInterval: fillInterval,
-	}
-}
-
-// Wait takes count tokens from the bucket, waiting until they are
-// available.
-func (tb *Bucket) Wait(count int64) {
-	if d := tb.Take(count); d > 0 {
-		time.Sleep(d)
-	}
-}
-
-// WaitMaxDuration is like Wait except that it will
-// only take tokens from the bucket if it needs to wait
-// for no greater than maxWait. It reports whether
-// any tokens have been removed from the bucket
-// If no tokens have been removed, it returns immediately.
-func (tb *Bucket) WaitMaxDuration(count int64, maxWait time.Duration) bool {
-	d, ok := tb.TakeMaxDuration(count, maxWait)
-	if d > 0 {
-		time.Sleep(d)
-	}
-	return ok
-}
-
-const infinityDuration time.Duration = 0x7fffffffffffffff
-
-// Take takes count tokens from the bucket without blocking. It returns
-// the time that the caller should wait until the tokens are actually
-// available.
-//
-// Note that if the request is irrevocable - there is no way to return
-// tokens to the bucket once this method commits us to taking them.
-func (tb *Bucket) Take(count int64) time.Duration {
-	d, _ := tb.take(time.Now(), count, infinityDuration)
-	return d
-}
-
-// TakeMaxDuration is like Take, except that
-// it will only take tokens from the bucket if the wait
-// time for the tokens is no greater than maxWait.
-//
-// If it would take longer than maxWait for the tokens
-// to become available, it does nothing and reports false,
-// otherwise it returns the time that the caller should
-// wait until the tokens are actually available, and reports
-// true.
-func (tb *Bucket) TakeMaxDuration(count int64, maxWait time.Duration) (time.Duration, bool) {
-	return tb.take(time.Now(), count, maxWait)
-}
-
-// TakeAvailable takes up to count immediately available tokens from the
-// bucket. It returns the number of tokens removed, or zero if there are
-// no available tokens. It does not block.
-func (tb *Bucket) TakeAvailable(count int64) int64 {
-	return tb.takeAvailable(time.Now(), count)
-}
-
-// takeAvailable is the internal version of TakeAvailable - it takes the
-// current time as an argument to enable easy testing.
-func (tb *Bucket) takeAvailable(now time.Time, count int64) int64 {
-	if count <= 0 {
-		return 0
-	}
-	tb.mu.Lock()
-	defer tb.mu.Unlock()
-
-	tb.adjust(now)
-	if tb.avail <= 0 {
-		return 0
-	}
-	if count > tb.avail {
-		count = tb.avail
-	}
-	tb.avail -= count
-	return count
-}
-
-// Rate returns the fill rate of the bucket, in tokens per second.
-func (tb *Bucket) Rate() float64 {
-	return 1e9 * float64(tb.quantum) / float64(tb.fillInterval)
-}
-
-// take is the internal version of Take - it takes the current time as
-// an argument to enable easy testing.
-func (tb *Bucket) take(now time.Time, count int64, maxWait time.Duration) (time.Duration, bool) {
-	if count <= 0 {
-		return 0, true
-	}
-	tb.mu.Lock()
-	defer tb.mu.Unlock()
-
-	currentTick := tb.adjust(now)
-	avail := tb.avail - count
-	if avail >= 0 {
-		tb.avail = avail
-		return 0, true
-	}
-	// Round up the missing tokens to the nearest multiple
-	// of quantum - the tokens won't be available until
-	// that tick.
-	endTick := currentTick + (-avail+tb.quantum-1)/tb.quantum
-	endTime := tb.startTime.Add(time.Duration(endTick) * tb.fillInterval)
-	waitTime := endTime.Sub(now)
-	if waitTime > maxWait {
-		return 0, false
-	}
-	tb.avail = avail
-	return waitTime, true
-}
-
-// adjust adjusts the current bucket capacity based on the current time.
-// It returns the current tick.
-func (tb *Bucket) adjust(now time.Time) (currentTick int64) {
-	currentTick = int64(now.Sub(tb.startTime) / tb.fillInterval)
-
-	if tb.avail >= tb.capacity {
-		return
-	}
-	tb.avail += (currentTick - tb.availTick) * tb.quantum
-	if tb.avail > tb.capacity {
-		tb.avail = tb.capacity
-	}
-	tb.availTick = currentTick
-	return
-}
-
-func abs(f float64) float64 {
-	if f < 0 {
-		return -f
-	}
-	return f
-}

Godeps/_workspace/src/github.com/juju/ratelimit/ratelimit_test.go

@@ -1,328 +0,0 @@
-// Copyright 2014 Canonical Ltd.
-// Licensed under the LGPLv3 with static-linking exception.
-// See LICENCE file for details.
-
-package ratelimit
-
-import (
-	gc "launchpad.net/gocheck"
-
-	"testing"
-	"time"
-)
-
-func TestPackage(t *testing.T) {
-	gc.TestingT(t)
-}
-
-type rateLimitSuite struct{}
-
-var _ = gc.Suite(rateLimitSuite{})
-
-type takeReq struct {
-	time       time.Duration
-	count      int64
-	expectWait time.Duration
-}
-
-var takeTests = []struct {
-	about        string
-	fillInterval time.Duration
-	capacity     int64
-	reqs         []takeReq
-}{{
-	about:        "serial requests",
-	fillInterval: 250 * time.Millisecond,
-	capacity:     10,
-	reqs: []takeReq{{
-		time:       0,
-		count:      0,
-		expectWait: 0,
-	}, {
-		time:       0,
-		count:      10,
-		expectWait: 0,
-	}, {
-		time:       0,
-		count:      1,
-		expectWait: 250 * time.Millisecond,
-	}, {
-		time:       250 * time.Millisecond,
-		count:      1,
-		expectWait: 250 * time.Millisecond,
-	}},
-}, {
-	about:        "concurrent requests",
-	fillInterval: 250 * time.Millisecond,
-	capacity:     10,
-	reqs: []takeReq{{
-		time:       0,
-		count:      10,
-		expectWait: 0,
-	}, {
-		time:       0,
-		count:      2,
-		expectWait: 500 * time.Millisecond,
-	}, {
-		time:       0,
-		count:      2,
-		expectWait: 1000 * time.Millisecond,
-	}, {
-		time:       0,
-		count:      1,
-		expectWait: 1250 * time.Millisecond,
-	}},
-}, {
-	about:        "more than capacity",
-	fillInterval: 1 * time.Millisecond,
-	capacity:     10,
-	reqs: []takeReq{{
-		time:       0,
-		count:      10,
-		expectWait: 0,
-	}, {
-		time:       20 * time.Millisecond,
-		count:      15,
-		expectWait: 5 * time.Millisecond,
-	}},
-}, {
-	about:        "sub-quantum time",
-	fillInterval: 10 * time.Millisecond,
-	capacity:     10,
-	reqs: []takeReq{{
-		time:       0,
-		count:      10,
-		expectWait: 0,
-	}, {
-		time:       7 * time.Millisecond,
-		count:      1,
-		expectWait: 3 * time.Millisecond,
-	}, {
-		time:       8 * time.Millisecond,
-		count:      1,
-		expectWait: 12 * time.Millisecond,
-	}},
-}, {
-	about:        "within capacity",
-	fillInterval: 10 * time.Millisecond,
-	capacity:     5,
-	reqs: []takeReq{{
-		time:       0,
-		count:      5,
-		expectWait: 0,
-	}, {
-		time:       60 * time.Millisecond,
-		count:      5,
-		expectWait: 0,
-	}, {
-		time:       60 * time.Millisecond,
-		count:      1,
-		expectWait: 10 * time.Millisecond,
-	}, {
-		time:       80 * time.Millisecond,
-		count:      2,
-		expectWait: 10 * time.Millisecond,
-	}},
-}}
-
-func (rateLimitSuite) TestTake(c *gc.C) {
-	for i, test := range takeTests {
-		tb := NewBucket(test.fillInterval, test.capacity)
-		for j, req := range test.reqs {
-			d, ok := tb.take(tb.startTime.Add(req.time), req.count, infinityDuration)
-			c.Assert(ok, gc.Equals, true)
-			if d != req.expectWait {
-				c.Fatalf("test %d.%d, %s, got %v want %v", i, j, test.about, d, req.expectWait)
-			}
-		}
-	}
-}
-
-func (rateLimitSuite) TestTakeMaxDuration(c *gc.C) {
-	for i, test := range takeTests {
-		tb := NewBucket(test.fillInterval, test.capacity)
-		for j, req := range test.reqs {
-			if req.expectWait > 0 {
-				d, ok := tb.take(tb.startTime.Add(req.time), req.count, req.expectWait-1)
-				c.Assert(ok, gc.Equals, false)
-				c.Assert(d, gc.Equals, time.Duration(0))
-			}
-			d, ok := tb.take(tb.startTime.Add(req.time), req.count, req.expectWait)
-			c.Assert(ok, gc.Equals, true)
-			if d != req.expectWait {
-				c.Fatalf("test %d.%d, %s, got %v want %v", i, j, test.about, d, req.expectWait)
-			}
-		}
-	}
-}
-
-type takeAvailableReq struct {
-	time   time.Duration
-	count  int64
-	expect int64
-}
-
-var takeAvailableTests = []struct {
-	about        string
-	fillInterval time.Duration
-	capacity     int64
-	reqs         []takeAvailableReq
-}{{
-	about:        "serial requests",
-	fillInterval: 250 * time.Millisecond,
-	capacity:     10,
-	reqs: []takeAvailableReq{{
-		time:   0,
-		count:  0,
-		expect: 0,
-	}, {
-		time:   0,
-		count:  10,
-		expect: 10,
-	}, {
-		time:   0,
-		count:  1,
-		expect: 0,
-	}, {
-		time:   250 * time.Millisecond,
-		count:  1,
-		expect: 1,
-	}},
-}, {
-	about:        "concurrent requests",
-	fillInterval: 250 * time.Millisecond,
-	capacity:     10,
-	reqs: []takeAvailableReq{{
-		time:   0,
-		count:  5,
-		expect: 5,
-	}, {
-		time:   0,
-		count:  2,
-		expect: 2,
-	}, {
-		time:   0,
-		count:  5,
-		expect: 3,
-	}, {
-		time:   0,
-		count:  1,
-		expect: 0,
-	}},
-}, {
-	about:        "more than capacity",
-	fillInterval: 1 * time.Millisecond,
-	capacity:     10,
-	reqs: []takeAvailableReq{{
-		time:   0,
-		count:  10,
-		expect: 10,
-	}, {
-		time:   20 * time.Millisecond,
-		count:  15,
-		expect: 10,
-	}},
-}, {
-	about:        "within capacity",
-	fillInterval: 10 * time.Millisecond,
-	capacity:     5,
-	reqs: []takeAvailableReq{{
-		time:   0,
-		count:  5,
-		expect: 5,
-	}, {
-		time:   60 * time.Millisecond,
-		count:  5,
-		expect: 5,
-	}, {
-		time:   70 * time.Millisecond,
-		count:  1,
-		expect: 1,
-	}},
-}}
-
-func (rateLimitSuite) TestTakeAvailable(c *gc.C) {
-	for i, test := range takeAvailableTests {
-		tb := NewBucket(test.fillInterval, test.capacity)
-		for j, req := range test.reqs {
-			d := tb.takeAvailable(tb.startTime.Add(req.time), req.count)
-			if d != req.expect {
-				c.Fatalf("test %d.%d, %s, got %v want %v", i, j, test.about, d, req.expect)
-			}
-		}
-	}
-}
-
-func (rateLimitSuite) TestPanics(c *gc.C) {
-	c.Assert(func() { NewBucket(0, 1) }, gc.PanicMatches, "token bucket fill interval is not > 0")
-	c.Assert(func() { NewBucket(-2, 1) }, gc.PanicMatches, "token bucket fill interval is not > 0")
-	c.Assert(func() { NewBucket(1, 0) }, gc.PanicMatches, "token bucket capacity is not > 0")
-	c.Assert(func() { NewBucket(1, -2) }, gc.PanicMatches, "token bucket capacity is not > 0")
-}
-
-func isCloseTo(x, y, tolerance float64) bool {
-	return abs(x-y)/y < tolerance
-}
-
-func (rateLimitSuite) TestRate(c *gc.C) {
-	tb := NewBucket(1, 1)
-	if !isCloseTo(tb.Rate(), 1e9, 0.00001) {
-		c.Fatalf("got %v want 1e9", tb.Rate())
-	}
-	tb = NewBucket(2*time.Second, 1)
-	if !isCloseTo(tb.Rate(), 0.5, 0.00001) {
-		c.Fatalf("got %v want 0.5", tb.Rate())
-	}
-	tb = NewBucketWithQuantum(100*time.Millisecond, 1, 5)
-	if !isCloseTo(tb.Rate(), 50, 0.00001) {
-		c.Fatalf("got %v want 50", tb.Rate())
-	}
-}
-
-func checkRate(c *gc.C, rate float64) {
-	tb := NewBucketWithRate(rate, 1<<62)
-	if !isCloseTo(tb.Rate(), rate, rateMargin) {
-		c.Fatalf("got %g want %v", tb.Rate(), rate)
-	}
-	d, ok := tb.take(tb.startTime, 1<<62, infinityDuration)
-	c.Assert(ok, gc.Equals, true)
-	c.Assert(d, gc.Equals, time.Duration(0))
-
-	// Check that the actual rate is as expected by
-	// asking for a not-quite multiple of the bucket's
-	// quantum and checking that the wait time
-	// correct.
-	d, ok = tb.take(tb.startTime, tb.quantum*2-tb.quantum/2, infinityDuration)
-	c.Assert(ok, gc.Equals, true)
-	expectTime := 1e9 * float64(tb.quantum) * 2 / rate
-	if !isCloseTo(float64(d), expectTime, rateMargin) {
-		c.Fatalf("rate %g: got %g want %v", rate, float64(d), expectTime)
-	}
-}
-
-func (rateLimitSuite) TestNewWithRate(c *gc.C) {
-	for rate := float64(1); rate < 1e6; rate += 7 {
-		checkRate(c, rate)
-	}
-	for _, rate := range []float64{
-		1024 * 1024 * 1024,
-		1e-5,
-		0.9e-5,
-		0.5,
-		0.9,
-		0.9e8,
-		3e12,
-		4e18,
-	} {
-		checkRate(c, rate)
-		checkRate(c, rate/3)
-		checkRate(c, rate*1.3)
-	}
-}
-
-func BenchmarkWait(b *testing.B) {
-	tb := NewBucket(1, 16*1024)
-	for i := b.N - 1; i >= 0; i-- {
-		tb.Wait(1)
-	}
-}

Godeps/_workspace/src/github.com/juju/ratelimit/reader.go

@@ -1,51 +0,0 @@
-// Copyright 2014 Canonical Ltd.
-// Licensed under the LGPLv3 with static-linking exception.
-// See LICENCE file for details.
-
-package ratelimit
-
-import "io"
-
-type reader struct {
-	r      io.Reader
-	bucket *Bucket
-}
-
-// Reader returns a reader that is rate limited by
-// the given token bucket. Each token in the bucket
-// represents one byte.
-func Reader(r io.Reader, bucket *Bucket) io.Reader {
-	return &reader{
-		r:      r,
-		bucket: bucket,
-	}
-}
-
-func (r *reader) Read(buf []byte) (int, error) {
-	n, err := r.r.Read(buf)
-	if n <= 0 {
-		return n, err
-	}
-	r.bucket.Wait(int64(n))
-	return n, err
-}
-
-type writer struct {
-	w      io.Writer
-	bucket *Bucket
-}
-
-// Writer returns a reader that is rate limited by
-// the given token bucket. Each token in the bucket
-// represents one byte.
-func Writer(w io.Writer, bucket *Bucket) io.Writer {
-	return &writer{
-		w:      w,
-		bucket: bucket,
-	}
-}
-
-func (w *writer) Write(buf []byte) (int, error) {
-	w.bucket.Wait(int64(len(buf)))
-	return w.w.Write(buf)
-}

Godeps/_workspace/src/github.com/kardianos/osext/LICENSE

@@ -1,27 +0,0 @@
-Copyright (c) 2012 The Go Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-   * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-   * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Godeps/_workspace/src/github.com/kardianos/osext/README.md

@@ -1,14 +0,0 @@
-### Extensions to the "os" package.
-
-## Find the current Executable and ExecutableFolder.
-
-There is sometimes utility in finding the current executable file
-that is running. This can be used for upgrading the current executable
-or finding resources located relative to the executable file.
-
-Multi-platform and supports:
- * Linux
- * OS X
- * Windows
- * Plan 9
- * BSDs.

Godeps/_workspace/src/github.com/kardianos/osext/osext.go

@@ -1,27 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Extensions to the standard "os" package.
-package osext
-
-import "path/filepath"
-
-// Executable returns an absolute path that can be used to
-// re-invoke the current program.
-// It may not be valid after the current program exits.
-func Executable() (string, error) {
-	p, err := executable()
-	return filepath.Clean(p), err
-}
-
-// Returns same path as Executable, returns just the folder
-// path. Excludes the executable name.
-func ExecutableFolder() (string, error) {
-	p, err := Executable()
-	if err != nil {
-		return "", err
-	}
-	folder, _ := filepath.Split(p)
-	return folder, nil
-}

Godeps/_workspace/src/github.com/kardianos/osext/osext_plan9.go

@@ -1,20 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package osext
-
-import (
-	"os"
-	"strconv"
-	"syscall"
-)
-
-func executable() (string, error) {
-	f, err := os.Open("/proc/" + strconv.Itoa(os.Getpid()) + "/text")
-	if err != nil {
-		return "", err
-	}
-	defer f.Close()
-	return syscall.Fd2path(int(f.Fd()))
-}

Godeps/_workspace/src/github.com/kardianos/osext/osext_procfs.go

@@ -1,28 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build linux netbsd openbsd solaris dragonfly
-
-package osext
-
-import (
-	"errors"
-	"fmt"
-	"os"
-	"runtime"
-)
-
-func executable() (string, error) {
-	switch runtime.GOOS {
-	case "linux":
-		return os.Readlink("/proc/self/exe")
-	case "netbsd":
-		return os.Readlink("/proc/curproc/exe")
-	case "openbsd", "dragonfly":
-		return os.Readlink("/proc/curproc/file")
-	case "solaris":
-		return os.Readlink(fmt.Sprintf("/proc/%d/path/a.out", os.Getpid()))
-	}
-	return "", errors.New("ExecPath not implemented for " + runtime.GOOS)
-}

Godeps/_workspace/src/github.com/kardianos/osext/osext_sysctl.go

@@ -1,79 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin freebsd
-
-package osext
-
-import (
-	"os"
-	"path/filepath"
-	"runtime"
-	"syscall"
-	"unsafe"
-)
-
-var initCwd, initCwdErr = os.Getwd()
-
-func executable() (string, error) {
-	var mib [4]int32
-	switch runtime.GOOS {
-	case "freebsd":
-		mib = [4]int32{1 /* CTL_KERN */, 14 /* KERN_PROC */, 12 /* KERN_PROC_PATHNAME */, -1}
-	case "darwin":
-		mib = [4]int32{1 /* CTL_KERN */, 38 /* KERN_PROCARGS */, int32(os.Getpid()), -1}
-	}
-
-	n := uintptr(0)
-	// Get length.
-	_, _, errNum := syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(unsafe.Pointer(&mib[0])), 4, 0, uintptr(unsafe.Pointer(&n)), 0, 0)
-	if errNum != 0 {
-		return "", errNum
-	}
-	if n == 0 { // This shouldn't happen.
-		return "", nil
-	}
-	buf := make([]byte, n)
-	_, _, errNum = syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(unsafe.Pointer(&mib[0])), 4, uintptr(unsafe.Pointer(&buf[0])), uintptr(unsafe.Pointer(&n)), 0, 0)
-	if errNum != 0 {
-		return "", errNum
-	}
-	if n == 0 { // This shouldn't happen.
-		return "", nil
-	}
-	for i, v := range buf {
-		if v == 0 {
-			buf = buf[:i]
-			break
-		}
-	}
-	var err error
-	execPath := string(buf)
-	// execPath will not be empty due to above checks.
-	// Try to get the absolute path if the execPath is not rooted.
-	if execPath[0] != '/' {
-		execPath, err = getAbs(execPath)
-		if err != nil {
-			return execPath, err
-		}
-	}
-	// For darwin KERN_PROCARGS may return the path to a symlink rather than the
-	// actual executable.
-	if runtime.GOOS == "darwin" {
-		if execPath, err = filepath.EvalSymlinks(execPath); err != nil {
-			return execPath, err
-		}
-	}
-	return execPath, nil
-}
-
-func getAbs(execPath string) (string, error) {
-	if initCwdErr != nil {
-		return execPath, initCwdErr
-	}
-	// The execPath may begin with a "../" or a "./" so clean it first.
-	// Join the two paths, trailing and starting slashes undetermined, so use
-	// the generic Join function.
-	return filepath.Join(initCwd, filepath.Clean(execPath)), nil
-}

Godeps/_workspace/src/github.com/kardianos/osext/osext_test.go

@@ -1,79 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin linux freebsd netbsd windows
-
-package osext
-
-import (
-	"fmt"
-	"os"
-	oexec "os/exec"
-	"path/filepath"
-	"runtime"
-	"testing"
-)
-
-const execPath_EnvVar = "OSTEST_OUTPUT_EXECPATH"
-
-func TestExecPath(t *testing.T) {
-	ep, err := Executable()
-	if err != nil {
-		t.Fatalf("ExecPath failed: %v", err)
-	}
-	// we want fn to be of the form "dir/prog"
-	dir := filepath.Dir(filepath.Dir(ep))
-	fn, err := filepath.Rel(dir, ep)
-	if err != nil {
-		t.Fatalf("filepath.Rel: %v", err)
-	}
-	cmd := &oexec.Cmd{}
-	// make child start with a relative program path
-	cmd.Dir = dir
-	cmd.Path = fn
-	// forge argv[0] for child, so that we can verify we could correctly
-	// get real path of the executable without influenced by argv[0].
-	cmd.Args = []string{"-", "-test.run=XXXX"}
-	cmd.Env = []string{fmt.Sprintf("%s=1", execPath_EnvVar)}
-	out, err := cmd.CombinedOutput()
-	if err != nil {
-		t.Fatalf("exec(self) failed: %v", err)
-	}
-	outs := string(out)
-	if !filepath.IsAbs(outs) {
-		t.Fatalf("Child returned %q, want an absolute path", out)
-	}
-	if !sameFile(outs, ep) {
-		t.Fatalf("Child returned %q, not the same file as %q", out, ep)
-	}
-}
-
-func sameFile(fn1, fn2 string) bool {
-	fi1, err := os.Stat(fn1)
-	if err != nil {
-		return false
-	}
-	fi2, err := os.Stat(fn2)
-	if err != nil {
-		return false
-	}
-	return os.SameFile(fi1, fi2)
-}
-
-func init() {
-	if e := os.Getenv(execPath_EnvVar); e != "" {
-		// first chdir to another path
-		dir := "/"
-		if runtime.GOOS == "windows" {
-			dir = filepath.VolumeName(".")
-		}
-		os.Chdir(dir)
-		if ep, err := Executable(); err != nil {
-			fmt.Fprint(os.Stderr, "ERROR: ", err)
-		} else {
-			fmt.Fprint(os.Stderr, ep)
-		}
-		os.Exit(0)
-	}
-}

Godeps/_workspace/src/github.com/kardianos/osext/osext_windows.go

@@ -1,34 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package osext
-
-import (
-	"syscall"
-	"unicode/utf16"
-	"unsafe"
-)
-
-var (
-	kernel                = syscall.MustLoadDLL("kernel32.dll")
-	getModuleFileNameProc = kernel.MustFindProc("GetModuleFileNameW")
-)
-
-// GetModuleFileName() with hModule = NULL
-func executable() (exePath string, err error) {
-	return getModuleFileName()
-}
-
-func getModuleFileName() (string, error) {
-	var n uint32
-	b := make([]uint16, syscall.MAX_PATH)
-	size := uint32(len(b))
-
-	r0, _, e1 := getModuleFileNameProc.Call(0, uintptr(unsafe.Pointer(&b[0])), uintptr(size))
-	n = uint32(r0)
-	if n == 0 {
-		return "", e1
-	}
-	return string(utf16.Decode(b[0:n])), nil
-}

Godeps/_workspace/src/github.com/syncthing/protocol/AUTHORS

@@ -1,4 +0,0 @@
-# This is the official list of Protocol Authors for copyright purposes.
-
-Audrius Butkevicius <audrius.butkevicius@gmail.com>
-Jakob Borg <jakob@nym.se>

Godeps/_workspace/src/github.com/syncthing/protocol/CONTRIBUTING.md

@@ -1,76 +0,0 @@
-## Reporting Bugs
-
-Please file bugs in the [Github Issue
-Tracker](https://github.com/syncthing/protocol/issues).
-
-## Contributing Code
-
-Every contribution is welcome. Following the points below will make this
-a smoother process.
-
-Individuals making significant and valuable contributions are given
-commit-access to the project. If you make a significant contribution and
-are not considered for commit-access, please contact any of the
-Syncthing core team members.
-
-All nontrivial contributions should go through the pull request
-mechanism for internal review. Determining what is "nontrivial" is left
-at the discretion of the contributor.
-
-### Authorship
-
-All code authors are listed in the AUTHORS file. Commits must be made
-with the same name and email as listed in the AUTHORS file. To
-accomplish this, ensure that your git configuration is set correctly
-prior to making your first commit;
-
-    $ git config --global user.name "Jane Doe"
-    $ git config --global user.email janedoe@example.com
-
-You must be reachable on the given email address. If you do not wish to
-use your real name for whatever reason, using a nickname or pseudonym is
-perfectly acceptable.
-
-## Coding Style
-
-- Follow the conventions laid out in [Effective Go](https://golang.org/doc/effective_go.html)
-  as much as makes sense.
-
-- All text files use Unix line endings.
-
-- Each commit should be `go fmt` clean.
-
-- The commit message subject should be a single short sentence
-  describing the change, starting with a capital letter.
-
-- Commits that resolve an existing issue must include the issue number
-  as `(fixes #123)` at the end of the commit message subject.
-
-- Imports are grouped per `goimports` standard; that is, standard
-  library first, then third party libraries after a blank line.
-
-- A contribution solving a single issue or introducing a single new
-  feature should probably be a single commit based on the current
-  `master` branch. You may be asked to "rebase" or "squash" your pull
-  request to make sure this is the case, especially if there have been
-  amendments during review.
-
-## Licensing
-
-All contributions are made under the same MIT license as the rest of the
-project, except documentation, user interface text and translation
-strings which are licensed under the Creative Commons Attribution 4.0
-International License. You retain the copyright to code you have
-written.
-
-When accepting your first contribution, the maintainer of the project
-will ensure that you are added to the AUTHORS file. You are welcome to
-add yourself as a separate commit in your first pull request.
-
-## Tests
-
-Yes please!
-
-## License
-
-MIT

Godeps/_workspace/src/github.com/syncthing/protocol/README.md

@@ -1,13 +0,0 @@
-The BEPv1 Protocol
-==================
-
-[![Latest Build](http://img.shields.io/jenkins/s/http/build.syncthing.net/protocol.svg?style=flat-square)](http://build.syncthing.net/job/protocol/lastBuild/)
-[![API Documentation](http://img.shields.io/badge/api-Godoc-blue.svg?style=flat-square)](http://godoc.org/github.com/syncthing/protocol)
-[![MIT License](http://img.shields.io/badge/license-MIT-blue.svg?style=flat-square)](http://opensource.org/licenses/MIT)
-
-This is the protocol implementation used by Syncthing.
-
-License
-=======
-
-MIT

Godeps/_workspace/src/github.com/syncthing/protocol/common_test.go

@@ -1,74 +0,0 @@
-// Copyright (C) 2014 The Protocol Authors.
-
-package protocol
-
-import (
-	"io"
-	"time"
-)
-
-type TestModel struct {
-	data     []byte
-	folder   string
-	name     string
-	offset   int64
-	size     int
-	closedCh chan bool
-}
-
-func newTestModel() *TestModel {
-	return &TestModel{
-		closedCh: make(chan bool),
-	}
-}
-
-func (t *TestModel) Index(deviceID DeviceID, folder string, files []FileInfo) {
-}
-
-func (t *TestModel) IndexUpdate(deviceID DeviceID, folder string, files []FileInfo) {
-}
-
-func (t *TestModel) Request(deviceID DeviceID, folder, name string, offset int64, size int) ([]byte, error) {
-	t.folder = folder
-	t.name = name
-	t.offset = offset
-	t.size = size
-	return t.data, nil
-}
-
-func (t *TestModel) Close(deviceID DeviceID, err error) {
-	close(t.closedCh)
-}
-
-func (t *TestModel) ClusterConfig(deviceID DeviceID, config ClusterConfigMessage) {
-}
-
-func (t *TestModel) isClosed() bool {
-	select {
-	case <-t.closedCh:
-		return true
-	case <-time.After(1 * time.Second):
-		return false // Timeout
-	}
-}
-
-type ErrPipe struct {
-	io.PipeWriter
-	written int
-	max     int
-	err     error
-	closed  bool
-}
-
-func (e *ErrPipe) Write(data []byte) (int, error) {
-	if e.closed {
-		return 0, e.err
-	}
-	if e.written+len(data) > e.max {
-		n, _ := e.PipeWriter.Write(data[:e.max-e.written])
-		e.PipeWriter.CloseWithError(e.err)
-		e.closed = true
-		return n, e.err
-	}
-	return e.PipeWriter.Write(data)
-}

Godeps/_workspace/src/github.com/syncthing/protocol/debug.go

@@ -1,15 +0,0 @@
-// Copyright (C) 2014 The Protocol Authors.
-
-package protocol
-
-import (
-	"os"
-	"strings"
-
-	"github.com/calmh/logger"
-)
-
-var (
-	debug = strings.Contains(os.Getenv("STTRACE"), "protocol") || os.Getenv("STTRACE") == "all"
-	l     = logger.DefaultLogger
-)

Godeps/_workspace/src/github.com/syncthing/protocol/deviceid_test.go

@@ -1,76 +0,0 @@
-// Copyright (C) 2014 The Protocol Authors.
-
-package protocol
-
-import "testing"
-
-var formatted = "P56IOI7-MZJNU2Y-IQGDREY-DM2MGTI-MGL3BXN-PQ6W5BM-TBBZ4TJ-XZWICQ2"
-var formatCases = []string{
-	"P56IOI-7MZJNU-2IQGDR-EYDM2M-GTMGL3-BXNPQ6-W5BTBB-Z4TJXZ-WICQ",
-	"P56IOI-7MZJNU2Y-IQGDR-EYDM2M-GTI-MGL3-BXNPQ6-W5BM-TBB-Z4TJXZ-WICQ2",
-	"P56IOI7 MZJNU2I QGDREYD M2MGTMGL 3BXNPQ6W 5BTB BZ4T JXZWICQ",
-	"P56IOI7 MZJNU2Y IQGDREY DM2MGTI MGL3BXN PQ6W5BM TBBZ4TJ XZWICQ2",
-	"P56IOI7MZJNU2IQGDREYDM2MGTMGL3BXNPQ6W5BTBBZ4TJXZWICQ",
-	"p56ioi7mzjnu2iqgdreydm2mgtmgl3bxnpq6w5btbbz4tjxzwicq",
-	"P56IOI7MZJNU2YIQGDREYDM2MGTIMGL3BXNPQ6W5BMTBBZ4TJXZWICQ2",
-	"P561017MZJNU2YIQGDREYDM2MGTIMGL3BXNPQ6W5BMT88Z4TJXZWICQ2",
-	"p56ioi7mzjnu2yiqgdreydm2mgtimgl3bxnpq6w5bmtbbz4tjxzwicq2",
-	"p561017mzjnu2yiqgdreydm2mgtimgl3bxnpq6w5bmt88z4tjxzwicq2",
-}
-
-func TestFormatDeviceID(t *testing.T) {
-	for i, tc := range formatCases {
-		var id DeviceID
-		err := id.UnmarshalText([]byte(tc))
-		if err != nil {
-			t.Errorf("#%d UnmarshalText(%q); %v", i, tc, err)
-		} else if f := id.String(); f != formatted {
-			t.Errorf("#%d FormatDeviceID(%q)\n\t%q !=\n\t%q", i, tc, f, formatted)
-		}
-	}
-}
-
-var validateCases = []struct {
-	s  string
-	ok bool
-}{
-	{"", false},
-	{"P56IOI7-MZJNU2Y-IQGDREY-DM2MGTI-MGL3BXN-PQ6W5BM-TBBZ4TJ-XZWICQ2", true},
-	{"P56IOI7-MZJNU2-IQGDREY-DM2MGT-MGL3BXN-PQ6W5B-TBBZ4TJ-XZWICQ", true},
-	{"P56IOI7 MZJNU2I QGDREYD M2MGTMGL 3BXNPQ6W 5BTB BZ4T JXZWICQ", true},
-	{"P56IOI7MZJNU2IQGDREYDM2MGTMGL3BXNPQ6W5BTBBZ4TJXZWICQ", true},
-	{"P56IOI7MZJNU2IQGDREYDM2MGTMGL3BXNPQ6W5BTBBZ4TJXZWICQCCCC", false},
-	{"p56ioi7mzjnu2iqgdreydm2mgtmgl3bxnpq6w5btbbz4tjxzwicq", true},
-	{"p56ioi7mzjnu2iqgdreydm2mgtmgl3bxnpq6w5btbbz4tjxzwicqCCCC", false},
-}
-
-func TestValidateDeviceID(t *testing.T) {
-	for _, tc := range validateCases {
-		var id DeviceID
-		err := id.UnmarshalText([]byte(tc.s))
-		if (err == nil && !tc.ok) || (err != nil && tc.ok) {
-			t.Errorf("ValidateDeviceID(%q); %v != %v", tc.s, err, tc.ok)
-		}
-	}
-}
-
-func TestMarshallingDeviceID(t *testing.T) {
-	n0 := DeviceID{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 10, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32}
-	n1 := DeviceID{}
-	n2 := DeviceID{}
-
-	bs, _ := n0.MarshalText()
-	n1.UnmarshalText(bs)
-	bs, _ = n1.MarshalText()
-	n2.UnmarshalText(bs)
-
-	if n2.String() != n0.String() {
-		t.Errorf("String marshalling error; %q != %q", n2.String(), n0.String())
-	}
-	if !n2.Equals(n0) {
-		t.Error("Equals error")
-	}
-	if n2.Compare(n0) != 0 {
-		t.Error("Compare error")
-	}
-}

Godeps/_workspace/src/github.com/syncthing/protocol/header.go

@@ -1,43 +0,0 @@
-// Copyright (C) 2014 The Protocol Authors.
-
-package protocol
-
-import "github.com/calmh/xdr"
-
-type header struct {
-	version     int
-	msgID       int
-	msgType     int
-	compression bool
-}
-
-func (h header) encodeXDR(xw *xdr.Writer) (int, error) {
-	u := encodeHeader(h)
-	return xw.WriteUint32(u)
-}
-
-func (h *header) decodeXDR(xr *xdr.Reader) error {
-	u := xr.ReadUint32()
-	*h = decodeHeader(u)
-	return xr.Error()
-}
-
-func encodeHeader(h header) uint32 {
-	var isComp uint32
-	if h.compression {
-		isComp = 1 << 0 // the zeroth bit is the compression bit
-	}
-	return uint32(h.version&0xf)<<28 +
-		uint32(h.msgID&0xfff)<<16 +
-		uint32(h.msgType&0xff)<<8 +
-		isComp
-}
-
-func decodeHeader(u uint32) header {
-	return header{
-		version:     int(u>>28) & 0xf,
-		msgID:       int(u>>16) & 0xfff,
-		msgType:     int(u>>8) & 0xff,
-		compression: u&1 == 1,
-	}
-}

Godeps/_workspace/src/github.com/syncthing/protocol/message.go

@@ -1,122 +0,0 @@
-// Copyright (C) 2014 The Protocol Authors.
-
-//go:generate genxdr -o message_xdr.go message.go
-
-package protocol
-
-import "fmt"
-
-type IndexMessage struct {
-	Folder  string
-	Files   []FileInfo
-	Flags   uint32
-	Options []Option // max:64
-}
-
-type FileInfo struct {
-	Name         string // max:8192
-	Flags        uint32
-	Modified     int64
-	Version      int64
-	LocalVersion int64
-	Blocks       []BlockInfo
-}
-
-func (f FileInfo) String() string {
-	return fmt.Sprintf("File{Name:%q, Flags:0%o, Modified:%d, Version:%d, Size:%d, Blocks:%v}",
-		f.Name, f.Flags, f.Modified, f.Version, f.Size(), f.Blocks)
-}
-
-func (f FileInfo) Size() (bytes int64) {
-	if f.IsDeleted() || f.IsDirectory() {
-		return 128
-	}
-	for _, b := range f.Blocks {
-		bytes += int64(b.Size)
-	}
-	return
-}
-
-func (f FileInfo) IsDeleted() bool {
-	return f.Flags&FlagDeleted != 0
-}
-
-func (f FileInfo) IsInvalid() bool {
-	return f.Flags&FlagInvalid != 0
-}
-
-func (f FileInfo) IsDirectory() bool {
-	return f.Flags&FlagDirectory != 0
-}
-
-func (f FileInfo) IsSymlink() bool {
-	return f.Flags&FlagSymlink != 0
-}
-
-func (f FileInfo) HasPermissionBits() bool {
-	return f.Flags&FlagNoPermBits == 0
-}
-
-type BlockInfo struct {
-	Offset int64 // noencode (cache only)
-	Size   int32
-	Hash   []byte // max:64
-}
-
-func (b BlockInfo) String() string {
-	return fmt.Sprintf("Block{%d/%d/%x}", b.Offset, b.Size, b.Hash)
-}
-
-type RequestMessage struct {
-	Folder  string // max:64
-	Name    string // max:8192
-	Offset  int64
-	Size    int32
-	Hash    []byte // max:64
-	Flags   uint32
-	Options []Option // max:64
-}
-
-type ResponseMessage struct {
-	Data  []byte
-	Error int32
-}
-
-type ClusterConfigMessage struct {
-	ClientName    string // max:64
-	ClientVersion string // max:64
-	Folders       []Folder
-	Options       []Option // max:64
-}
-
-func (o *ClusterConfigMessage) GetOption(key string) string {
-	for _, option := range o.Options {
-		if option.Key == key {
-			return option.Value
-		}
-	}
-	return ""
-}
-
-type Folder struct {
-	ID      string // max:64
-	Devices []Device
-}
-
-type Device struct {
-	ID              []byte // max:32
-	Flags           uint32
-	MaxLocalVersion int64
-}
-
-type Option struct {
-	Key   string // max:64
-	Value string // max:1024
-}
-
-type CloseMessage struct {
-	Reason string // max:1024
-	Code   int32
-}
-
-type EmptyMessage struct{}

Godeps/_workspace/src/github.com/syncthing/protocol/nativemodel_unix.go

@@ -1,31 +0,0 @@
-// Copyright (C) 2014 The Protocol Authors.
-
-// +build !windows,!darwin
-
-package protocol
-
-// Normal Unixes uses NFC and slashes, which is the wire format.
-
-type nativeModel struct {
-	next Model
-}
-
-func (m nativeModel) Index(deviceID DeviceID, folder string, files []FileInfo) {
-	m.next.Index(deviceID, folder, files)
-}
-
-func (m nativeModel) IndexUpdate(deviceID DeviceID, folder string, files []FileInfo) {
-	m.next.IndexUpdate(deviceID, folder, files)
-}
-
-func (m nativeModel) Request(deviceID DeviceID, folder string, name string, offset int64, size int) ([]byte, error) {
-	return m.next.Request(deviceID, folder, name, offset, size)
-}
-
-func (m nativeModel) ClusterConfig(deviceID DeviceID, config ClusterConfigMessage) {
-	m.next.ClusterConfig(deviceID, config)
-}
-
-func (m nativeModel) Close(deviceID DeviceID, err error) {
-	m.next.Close(deviceID, err)
-}

Godeps/_workspace/src/github.com/syncthing/protocol/nativemodel_windows.go

@@ -1,70 +0,0 @@
-// Copyright (C) 2014 The Protocol Authors.
-
-// +build windows
-
-package protocol
-
-// Windows uses backslashes as file separator and disallows a bunch of
-// characters in the filename
-
-import (
-	"path/filepath"
-	"strings"
-)
-
-var disallowedCharacters = string([]rune{
-	'<', '>', ':', '"', '|', '?', '*',
-	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
-	11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
-	21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
-	31,
-})
-
-type nativeModel struct {
-	next Model
-}
-
-func (m nativeModel) Index(deviceID DeviceID, folder string, files []FileInfo) {
-	for i, f := range files {
-		if strings.ContainsAny(f.Name, disallowedCharacters) {
-			if f.IsDeleted() {
-				// Don't complain if the file is marked as deleted, since it
-				// can't possibly exist here anyway.
-				continue
-			}
-			files[i].Flags |= FlagInvalid
-			l.Warnf("File name %q contains invalid characters; marked as invalid.", f.Name)
-		}
-		files[i].Name = filepath.FromSlash(f.Name)
-	}
-	m.next.Index(deviceID, folder, files)
-}
-
-func (m nativeModel) IndexUpdate(deviceID DeviceID, folder string, files []FileInfo) {
-	for i, f := range files {
-		if strings.ContainsAny(f.Name, disallowedCharacters) {
-			if f.IsDeleted() {
-				// Don't complain if the file is marked as deleted, since it
-				// can't possibly exist here anyway.
-				continue
-			}
-			files[i].Flags |= FlagInvalid
-			l.Warnf("File name %q contains invalid characters; marked as invalid.", f.Name)
-		}
-		files[i].Name = filepath.FromSlash(files[i].Name)
-	}
-	m.next.IndexUpdate(deviceID, folder, files)
-}
-
-func (m nativeModel) Request(deviceID DeviceID, folder string, name string, offset int64, size int) ([]byte, error) {
-	name = filepath.FromSlash(name)
-	return m.next.Request(deviceID, folder, name, offset, size)
-}
-
-func (m nativeModel) ClusterConfig(deviceID DeviceID, config ClusterConfigMessage) {
-	m.next.ClusterConfig(deviceID, config)
-}
-
-func (m nativeModel) Close(deviceID DeviceID, err error) {
-	m.next.Close(deviceID, err)
-}

Godeps/_workspace/src/github.com/syncthing/protocol/protocol.go

@@ -1,725 +0,0 @@
-// Copyright (C) 2014 The Protocol Authors.
-
-package protocol
-
-import (
-	"encoding/binary"
-	"encoding/hex"
-	"errors"
-	"fmt"
-	"io"
-	"sync"
-	"time"
-
-	lz4 "github.com/bkaradzic/go-lz4"
-)
-
-const (
-	BlockSize = 128 * 1024
-)
-
-const (
-	messageTypeClusterConfig = 0
-	messageTypeIndex         = 1
-	messageTypeRequest       = 2
-	messageTypeResponse      = 3
-	messageTypePing          = 4
-	messageTypePong          = 5
-	messageTypeIndexUpdate   = 6
-	messageTypeClose         = 7
-)
-
-const (
-	stateInitial = iota
-	stateCCRcvd
-	stateIdxRcvd
-)
-
-const (
-	FlagDeleted              uint32 = 1 << 12
-	FlagInvalid                     = 1 << 13
-	FlagDirectory                   = 1 << 14
-	FlagNoPermBits                  = 1 << 15
-	FlagSymlink                     = 1 << 16
-	FlagSymlinkMissingTarget        = 1 << 17
-
-	FlagsAll = (1 << 18) - 1
-
-	SymlinkTypeMask = FlagDirectory | FlagSymlinkMissingTarget
-)
-
-const (
-	FlagShareTrusted  uint32 = 1 << 0
-	FlagShareReadOnly        = 1 << 1
-	FlagIntroducer           = 1 << 2
-	FlagShareBits            = 0x000000ff
-)
-
-var (
-	ErrClusterHash = fmt.Errorf("configuration error: mismatched cluster hash")
-	ErrClosed      = errors.New("connection closed")
-)
-
-// Specific variants of empty messages...
-type pingMessage struct{ EmptyMessage }
-type pongMessage struct{ EmptyMessage }
-
-type Model interface {
-	// An index was received from the peer device
-	Index(deviceID DeviceID, folder string, files []FileInfo)
-	// An index update was received from the peer device
-	IndexUpdate(deviceID DeviceID, folder string, files []FileInfo)
-	// A request was made by the peer device
-	Request(deviceID DeviceID, folder string, name string, offset int64, size int) ([]byte, error)
-	// A cluster configuration message was received
-	ClusterConfig(deviceID DeviceID, config ClusterConfigMessage)
-	// The peer device closed the connection
-	Close(deviceID DeviceID, err error)
-}
-
-type Connection interface {
-	ID() DeviceID
-	Name() string
-	Index(folder string, files []FileInfo) error
-	IndexUpdate(folder string, files []FileInfo) error
-	Request(folder string, name string, offset int64, size int) ([]byte, error)
-	ClusterConfig(config ClusterConfigMessage)
-	Statistics() Statistics
-}
-
-type rawConnection struct {
-	id       DeviceID
-	name     string
-	receiver Model
-	state    int
-
-	cr *countingReader
-	cw *countingWriter
-
-	awaiting    [4096]chan asyncResult
-	awaitingMut sync.Mutex
-
-	idxMut sync.Mutex // ensures serialization of Index calls
-
-	nextID chan int
-	outbox chan hdrMsg
-	closed chan struct{}
-	once   sync.Once
-
-	compression Compression
-
-	rdbuf0 []byte // used & reused by readMessage
-	rdbuf1 []byte // used & reused by readMessage
-}
-
-type asyncResult struct {
-	val []byte
-	err error
-}
-
-type hdrMsg struct {
-	hdr header
-	msg encodable
-}
-
-type encodable interface {
-	AppendXDR([]byte) ([]byte, error)
-}
-
-type isEofer interface {
-	IsEOF() bool
-}
-
-const (
-	pingTimeout  = 30 * time.Second
-	pingIdleTime = 60 * time.Second
-)
-
-func NewConnection(deviceID DeviceID, reader io.Reader, writer io.Writer, receiver Model, name string, compress Compression) Connection {
-	cr := &countingReader{Reader: reader}
-	cw := &countingWriter{Writer: writer}
-
-	c := rawConnection{
-		id:          deviceID,
-		name:        name,
-		receiver:    nativeModel{receiver},
-		state:       stateInitial,
-		cr:          cr,
-		cw:          cw,
-		outbox:      make(chan hdrMsg),
-		nextID:      make(chan int),
-		closed:      make(chan struct{}),
-		compression: compress,
-	}
-
-	go c.readerLoop()
-	go c.writerLoop()
-	go c.pingerLoop()
-	go c.idGenerator()
-
-	return wireFormatConnection{&c}
-}
-
-func (c *rawConnection) ID() DeviceID {
-	return c.id
-}
-
-func (c *rawConnection) Name() string {
-	return c.name
-}
-
-// Index writes the list of file information to the connected peer device
-func (c *rawConnection) Index(folder string, idx []FileInfo) error {
-	select {
-	case <-c.closed:
-		return ErrClosed
-	default:
-	}
-	c.idxMut.Lock()
-	c.send(-1, messageTypeIndex, IndexMessage{
-		Folder: folder,
-		Files:  idx,
-	})
-	c.idxMut.Unlock()
-	return nil
-}
-
-// IndexUpdate writes the list of file information to the connected peer device as an update
-func (c *rawConnection) IndexUpdate(folder string, idx []FileInfo) error {
-	select {
-	case <-c.closed:
-		return ErrClosed
-	default:
-	}
-	c.idxMut.Lock()
-	c.send(-1, messageTypeIndexUpdate, IndexMessage{
-		Folder: folder,
-		Files:  idx,
-	})
-	c.idxMut.Unlock()
-	return nil
-}
-
-// Request returns the bytes for the specified block after fetching them from the connected peer.
-func (c *rawConnection) Request(folder string, name string, offset int64, size int) ([]byte, error) {
-	var id int
-	select {
-	case id = <-c.nextID:
-	case <-c.closed:
-		return nil, ErrClosed
-	}
-
-	c.awaitingMut.Lock()
-	if ch := c.awaiting[id]; ch != nil {
-		panic("id taken")
-	}
-	rc := make(chan asyncResult, 1)
-	c.awaiting[id] = rc
-	c.awaitingMut.Unlock()
-
-	ok := c.send(id, messageTypeRequest, RequestMessage{
-		Folder: folder,
-		Name:   name,
-		Offset: offset,
-		Size:   int32(size),
-	})
-	if !ok {
-		return nil, ErrClosed
-	}
-
-	res, ok := <-rc
-	if !ok {
-		return nil, ErrClosed
-	}
-	return res.val, res.err
-}
-
-// ClusterConfig send the cluster configuration message to the peer and returns any error
-func (c *rawConnection) ClusterConfig(config ClusterConfigMessage) {
-	c.send(-1, messageTypeClusterConfig, config)
-}
-
-func (c *rawConnection) ping() bool {
-	var id int
-	select {
-	case id = <-c.nextID:
-	case <-c.closed:
-		return false
-	}
-
-	rc := make(chan asyncResult, 1)
-	c.awaitingMut.Lock()
-	c.awaiting[id] = rc
-	c.awaitingMut.Unlock()
-
-	ok := c.send(id, messageTypePing, nil)
-	if !ok {
-		return false
-	}
-
-	res, ok := <-rc
-	return ok && res.err == nil
-}
-
-func (c *rawConnection) readerLoop() (err error) {
-	defer func() {
-		c.close(err)
-	}()
-
-	for {
-		select {
-		case <-c.closed:
-			return ErrClosed
-		default:
-		}
-
-		hdr, msg, err := c.readMessage()
-		if err != nil {
-			return err
-		}
-
-		switch msg := msg.(type) {
-		case IndexMessage:
-			if msg.Flags != 0 {
-				// We don't currently support or expect any flags.
-				return fmt.Errorf("protocol error: unknown flags 0x%x in Index(Update) message", msg.Flags)
-			}
-
-			switch hdr.msgType {
-			case messageTypeIndex:
-				if c.state < stateCCRcvd {
-					return fmt.Errorf("protocol error: index message in state %d", c.state)
-				}
-				c.handleIndex(msg)
-				c.state = stateIdxRcvd
-
-			case messageTypeIndexUpdate:
-				if c.state < stateIdxRcvd {
-					return fmt.Errorf("protocol error: index update message in state %d", c.state)
-				}
-				c.handleIndexUpdate(msg)
-			}
-
-		case RequestMessage:
-			if msg.Flags != 0 {
-				// We don't currently support or expect any flags.
-				return fmt.Errorf("protocol error: unknown flags 0x%x in Request message", msg.Flags)
-			}
-			if c.state < stateIdxRcvd {
-				return fmt.Errorf("protocol error: request message in state %d", c.state)
-			}
-			// Requests are handled asynchronously
-			go c.handleRequest(hdr.msgID, msg)
-
-		case ResponseMessage:
-			if c.state < stateIdxRcvd {
-				return fmt.Errorf("protocol error: response message in state %d", c.state)
-			}
-			c.handleResponse(hdr.msgID, msg)
-
-		case pingMessage:
-			c.send(hdr.msgID, messageTypePong, pongMessage{})
-
-		case pongMessage:
-			c.handlePong(hdr.msgID)
-
-		case ClusterConfigMessage:
-			if c.state != stateInitial {
-				return fmt.Errorf("protocol error: cluster config message in state %d", c.state)
-			}
-			go c.receiver.ClusterConfig(c.id, msg)
-			c.state = stateCCRcvd
-
-		case CloseMessage:
-			return errors.New(msg.Reason)
-
-		default:
-			return fmt.Errorf("protocol error: %s: unknown message type %#x", c.id, hdr.msgType)
-		}
-	}
-}
-
-func (c *rawConnection) readMessage() (hdr header, msg encodable, err error) {
-	if cap(c.rdbuf0) < 8 {
-		c.rdbuf0 = make([]byte, 8)
-	} else {
-		c.rdbuf0 = c.rdbuf0[:8]
-	}
-	_, err = io.ReadFull(c.cr, c.rdbuf0)
-	if err != nil {
-		return
-	}
-
-	hdr = decodeHeader(binary.BigEndian.Uint32(c.rdbuf0[0:4]))
-	msglen := int(binary.BigEndian.Uint32(c.rdbuf0[4:8]))
-
-	if debug {
-		l.Debugf("read header %v (msglen=%d)", hdr, msglen)
-	}
-
-	if hdr.version != 0 {
-		err = fmt.Errorf("unknown protocol version 0x%x", hdr.version)
-		return
-	}
-
-	if cap(c.rdbuf0) < msglen {
-		c.rdbuf0 = make([]byte, msglen)
-	} else {
-		c.rdbuf0 = c.rdbuf0[:msglen]
-	}
-	_, err = io.ReadFull(c.cr, c.rdbuf0)
-	if err != nil {
-		return
-	}
-
-	if debug {
-		l.Debugf("read %d bytes", len(c.rdbuf0))
-	}
-
-	msgBuf := c.rdbuf0
-	if hdr.compression {
-		c.rdbuf1 = c.rdbuf1[:cap(c.rdbuf1)]
-		c.rdbuf1, err = lz4.Decode(c.rdbuf1, c.rdbuf0)
-		if err != nil {
-			return
-		}
-		msgBuf = c.rdbuf1
-		if debug {
-			l.Debugf("decompressed to %d bytes", len(msgBuf))
-		}
-	}
-
-	if debug {
-		if len(msgBuf) > 1024 {
-			l.Debugf("message data:\n%s", hex.Dump(msgBuf[:1024]))
-		} else {
-			l.Debugf("message data:\n%s", hex.Dump(msgBuf))
-		}
-	}
-
-	// We check each returned error for the XDRError.IsEOF() method.
-	// IsEOF()==true here means that the message contained fewer fields than
-	// expected. It does not signify an EOF on the socket, because we've
-	// successfully read a size value and that many bytes already. New fields
-	// we expected but the other peer didn't send should be interpreted as
-	// zero/nil, and if that's not valid we'll verify it somewhere else.
-
-	switch hdr.msgType {
-	case messageTypeIndex, messageTypeIndexUpdate:
-		var idx IndexMessage
-		err = idx.UnmarshalXDR(msgBuf)
-		if xdrErr, ok := err.(isEofer); ok && xdrErr.IsEOF() {
-			err = nil
-		}
-		msg = idx
-
-	case messageTypeRequest:
-		var req RequestMessage
-		err = req.UnmarshalXDR(msgBuf)
-		if xdrErr, ok := err.(isEofer); ok && xdrErr.IsEOF() {
-			err = nil
-		}
-		msg = req
-
-	case messageTypeResponse:
-		var resp ResponseMessage
-		err = resp.UnmarshalXDR(msgBuf)
-		if xdrErr, ok := err.(isEofer); ok && xdrErr.IsEOF() {
-			err = nil
-		}
-		msg = resp
-
-	case messageTypePing:
-		msg = pingMessage{}
-
-	case messageTypePong:
-		msg = pongMessage{}
-
-	case messageTypeClusterConfig:
-		var cc ClusterConfigMessage
-		err = cc.UnmarshalXDR(msgBuf)
-		if xdrErr, ok := err.(isEofer); ok && xdrErr.IsEOF() {
-			err = nil
-		}
-		msg = cc
-
-	case messageTypeClose:
-		var cm CloseMessage
-		err = cm.UnmarshalXDR(msgBuf)
-		if xdrErr, ok := err.(isEofer); ok && xdrErr.IsEOF() {
-			err = nil
-		}
-		msg = cm
-
-	default:
-		err = fmt.Errorf("protocol error: %s: unknown message type %#x", c.id, hdr.msgType)
-	}
-
-	return
-}
-
-func (c *rawConnection) handleIndex(im IndexMessage) {
-	if debug {
-		l.Debugf("Index(%v, %v, %d files)", c.id, im.Folder, len(im.Files))
-	}
-	c.receiver.Index(c.id, im.Folder, filterIndexMessageFiles(im.Files))
-}
-
-func (c *rawConnection) handleIndexUpdate(im IndexMessage) {
-	if debug {
-		l.Debugf("queueing IndexUpdate(%v, %v, %d files)", c.id, im.Folder, len(im.Files))
-	}
-	c.receiver.IndexUpdate(c.id, im.Folder, filterIndexMessageFiles(im.Files))
-}
-
-func filterIndexMessageFiles(fs []FileInfo) []FileInfo {
-	var out []FileInfo
-	for i, f := range fs {
-		switch f.Name {
-		case "", ".", "..", "/": // A few obviously invalid filenames
-			l.Infof("Dropping invalid filename %q from incoming index", f.Name)
-			if out == nil {
-				// Most incoming updates won't contain anything invalid, so we
-				// delay the allocation and copy to output slice until we
-				// really need to do it, then copy all the so var valid files
-				// to it.
-				out = make([]FileInfo, i, len(fs)-1)
-				copy(out, fs)
-			}
-		default:
-			if out != nil {
-				out = append(out, f)
-			}
-		}
-	}
-	if out != nil {
-		return out
-	}
-	return fs
-}
-
-func (c *rawConnection) handleRequest(msgID int, req RequestMessage) {
-	data, _ := c.receiver.Request(c.id, req.Folder, req.Name, int64(req.Offset), int(req.Size))
-
-	c.send(msgID, messageTypeResponse, ResponseMessage{
-		Data: data,
-	})
-}
-
-func (c *rawConnection) handleResponse(msgID int, resp ResponseMessage) {
-	c.awaitingMut.Lock()
-	if rc := c.awaiting[msgID]; rc != nil {
-		c.awaiting[msgID] = nil
-		rc <- asyncResult{resp.Data, nil}
-		close(rc)
-	}
-	c.awaitingMut.Unlock()
-}
-
-func (c *rawConnection) handlePong(msgID int) {
-	c.awaitingMut.Lock()
-	if rc := c.awaiting[msgID]; rc != nil {
-		c.awaiting[msgID] = nil
-		rc <- asyncResult{}
-		close(rc)
-	}
-	c.awaitingMut.Unlock()
-}
-
-func (c *rawConnection) send(msgID int, msgType int, msg encodable) bool {
-	if msgID < 0 {
-		select {
-		case id := <-c.nextID:
-			msgID = id
-		case <-c.closed:
-			return false
-		}
-	}
-
-	hdr := header{
-		version: 0,
-		msgID:   msgID,
-		msgType: msgType,
-	}
-
-	select {
-	case c.outbox <- hdrMsg{hdr, msg}:
-		return true
-	case <-c.closed:
-		return false
-	}
-}
-
-func (c *rawConnection) writerLoop() {
-	var msgBuf = make([]byte, 8) // buffer for wire format message, kept and reused
-	var uncBuf []byte            // buffer for uncompressed message, kept and reused
-	for {
-		var tempBuf []byte
-		var err error
-
-		select {
-		case hm := <-c.outbox:
-			if hm.msg != nil {
-				// Uncompressed message in uncBuf
-				uncBuf, err = hm.msg.AppendXDR(uncBuf[:0])
-				if err != nil {
-					c.close(err)
-					return
-				}
-
-				compress := false
-				switch c.compression {
-				case CompressAlways:
-					compress = true
-				case CompressMetadata:
-					compress = hm.hdr.msgType != messageTypeResponse
-				}
-
-				if compress && len(uncBuf) >= compressionThreshold {
-					// Use compression for large messages
-					hm.hdr.compression = true
-
-					// Make sure we have enough space for the compressed message plus header in msgBug
-					msgBuf = msgBuf[:cap(msgBuf)]
-					if maxLen := lz4.CompressBound(len(uncBuf)) + 8; maxLen > len(msgBuf) {
-						msgBuf = make([]byte, maxLen)
-					}
-
-					// Compressed is written to msgBuf, we keep tb for the length only
-					tempBuf, err = lz4.Encode(msgBuf[8:], uncBuf)
-					binary.BigEndian.PutUint32(msgBuf[4:8], uint32(len(tempBuf)))
-					msgBuf = msgBuf[0 : len(tempBuf)+8]
-
-					if debug {
-						l.Debugf("write compressed message; %v (len=%d)", hm.hdr, len(tempBuf))
-					}
-				} else {
-					// No point in compressing very short messages
-					hm.hdr.compression = false
-
-					msgBuf = msgBuf[:cap(msgBuf)]
-					if l := len(uncBuf) + 8; l > len(msgBuf) {
-						msgBuf = make([]byte, l)
-					}
-
-					binary.BigEndian.PutUint32(msgBuf[4:8], uint32(len(uncBuf)))
-					msgBuf = msgBuf[0 : len(uncBuf)+8]
-					copy(msgBuf[8:], uncBuf)
-
-					if debug {
-						l.Debugf("write uncompressed message; %v (len=%d)", hm.hdr, len(uncBuf))
-					}
-				}
-			} else {
-				if debug {
-					l.Debugf("write empty message; %v", hm.hdr)
-				}
-				binary.BigEndian.PutUint32(msgBuf[4:8], 0)
-				msgBuf = msgBuf[:8]
-			}
-
-			binary.BigEndian.PutUint32(msgBuf[0:4], encodeHeader(hm.hdr))
-
-			if err == nil {
-				var n int
-				n, err = c.cw.Write(msgBuf)
-				if debug {
-					l.Debugf("wrote %d bytes on the wire", n)
-				}
-			}
-			if err != nil {
-				c.close(err)
-				return
-			}
-		case <-c.closed:
-			return
-		}
-	}
-}
-
-func (c *rawConnection) close(err error) {
-	c.once.Do(func() {
-		close(c.closed)
-
-		c.awaitingMut.Lock()
-		for i, ch := range c.awaiting {
-			if ch != nil {
-				close(ch)
-				c.awaiting[i] = nil
-			}
-		}
-		c.awaitingMut.Unlock()
-
-		go c.receiver.Close(c.id, err)
-	})
-}
-
-func (c *rawConnection) idGenerator() {
-	nextID := 0
-	for {
-		nextID = (nextID + 1) & 0xfff
-		select {
-		case c.nextID <- nextID:
-		case <-c.closed:
-			return
-		}
-	}
-}
-
-func (c *rawConnection) pingerLoop() {
-	var rc = make(chan bool, 1)
-	ticker := time.Tick(pingIdleTime / 2)
-	for {
-		select {
-		case <-ticker:
-			if d := time.Since(c.cr.Last()); d < pingIdleTime {
-				if debug {
-					l.Debugln(c.id, "ping skipped after rd", d)
-				}
-				continue
-			}
-			if d := time.Since(c.cw.Last()); d < pingIdleTime {
-				if debug {
-					l.Debugln(c.id, "ping skipped after wr", d)
-				}
-				continue
-			}
-			go func() {
-				if debug {
-					l.Debugln(c.id, "ping ->")
-				}
-				rc <- c.ping()
-			}()
-			select {
-			case ok := <-rc:
-				if debug {
-					l.Debugln(c.id, "<- pong")
-				}
-				if !ok {
-					c.close(fmt.Errorf("ping failure"))
-				}
-			case <-time.After(pingTimeout):
-				c.close(fmt.Errorf("ping timeout"))
-			case <-c.closed:
-				return
-			}
-
-		case <-c.closed:
-			return
-		}
-	}
-}
-
-type Statistics struct {
-	At            time.Time
-	InBytesTotal  int64
-	OutBytesTotal int64
-}
-
-func (c *rawConnection) Statistics() Statistics {
-	return Statistics{
-		At:            time.Now(),
-		InBytesTotal:  c.cr.Tot(),
-		OutBytesTotal: c.cw.Tot(),
-	}
-}

Godeps/_workspace/src/github.com/syncthing/protocol/protocol_test.go

@@ -1,382 +0,0 @@
-// Copyright (C) 2014 The Protocol Authors.
-
-package protocol
-
-import (
-	"bytes"
-	"encoding/hex"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"os"
-	"reflect"
-	"strings"
-	"testing"
-	"testing/quick"
-
-	"github.com/calmh/xdr"
-)
-
-var (
-	c0ID = NewDeviceID([]byte{1})
-	c1ID = NewDeviceID([]byte{2})
-)
-
-func TestHeaderFunctions(t *testing.T) {
-	f := func(ver, id, typ int) bool {
-		ver = int(uint(ver) % 16)
-		id = int(uint(id) % 4096)
-		typ = int(uint(typ) % 256)
-		h0 := header{version: ver, msgID: id, msgType: typ}
-		h1 := decodeHeader(encodeHeader(h0))
-		return h0 == h1
-	}
-	if err := quick.Check(f, nil); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestHeaderLayout(t *testing.T) {
-	var e, a uint32
-
-	// Version are the first four bits
-	e = 0xf0000000
-	a = encodeHeader(header{version: 0xf})
-	if a != e {
-		t.Errorf("Header layout incorrect; %08x != %08x", a, e)
-	}
-
-	// Message ID are the following 12 bits
-	e = 0x0fff0000
-	a = encodeHeader(header{msgID: 0xfff})
-	if a != e {
-		t.Errorf("Header layout incorrect; %08x != %08x", a, e)
-	}
-
-	// Type are the last 8 bits before reserved
-	e = 0x0000ff00
-	a = encodeHeader(header{msgType: 0xff})
-	if a != e {
-		t.Errorf("Header layout incorrect; %08x != %08x", a, e)
-	}
-}
-
-func TestPing(t *testing.T) {
-	ar, aw := io.Pipe()
-	br, bw := io.Pipe()
-
-	c0 := NewConnection(c0ID, ar, bw, nil, "name", CompressAlways).(wireFormatConnection).next.(*rawConnection)
-	c1 := NewConnection(c1ID, br, aw, nil, "name", CompressAlways).(wireFormatConnection).next.(*rawConnection)
-
-	if ok := c0.ping(); !ok {
-		t.Error("c0 ping failed")
-	}
-	if ok := c1.ping(); !ok {
-		t.Error("c1 ping failed")
-	}
-}
-
-func TestPingErr(t *testing.T) {
-	e := errors.New("something broke")
-
-	for i := 0; i < 16; i++ {
-		for j := 0; j < 16; j++ {
-			m0 := newTestModel()
-			m1 := newTestModel()
-
-			ar, aw := io.Pipe()
-			br, bw := io.Pipe()
-			eaw := &ErrPipe{PipeWriter: *aw, max: i, err: e}
-			ebw := &ErrPipe{PipeWriter: *bw, max: j, err: e}
-
-			c0 := NewConnection(c0ID, ar, ebw, m0, "name", CompressAlways).(wireFormatConnection).next.(*rawConnection)
-			NewConnection(c1ID, br, eaw, m1, "name", CompressAlways)
-
-			res := c0.ping()
-			if (i < 8 || j < 8) && res {
-				t.Errorf("Unexpected ping success; i=%d, j=%d", i, j)
-			} else if (i >= 12 && j >= 12) && !res {
-				t.Errorf("Unexpected ping fail; i=%d, j=%d", i, j)
-			}
-		}
-	}
-}
-
-// func TestRequestResponseErr(t *testing.T) {
-// 	e := errors.New("something broke")
-
-// 	var pass bool
-// 	for i := 0; i < 48; i++ {
-// 		for j := 0; j < 38; j++ {
-// 			m0 := newTestModel()
-// 			m0.data = []byte("response data")
-// 			m1 := newTestModel()
-
-// 			ar, aw := io.Pipe()
-// 			br, bw := io.Pipe()
-// 			eaw := &ErrPipe{PipeWriter: *aw, max: i, err: e}
-// 			ebw := &ErrPipe{PipeWriter: *bw, max: j, err: e}
-
-// 			NewConnection(c0ID, ar, ebw, m0, nil)
-// 			c1 := NewConnection(c1ID, br, eaw, m1, nil).(wireFormatConnection).next.(*rawConnection)
-
-// 			d, err := c1.Request("default", "tn", 1234, 5678)
-// 			if err == e || err == ErrClosed {
-// 				t.Logf("Error at %d+%d bytes", i, j)
-// 				if !m1.isClosed() {
-// 					t.Fatal("c1 not closed")
-// 				}
-// 				if !m0.isClosed() {
-// 					t.Fatal("c0 not closed")
-// 				}
-// 				continue
-// 			}
-// 			if err != nil {
-// 				t.Fatal(err)
-// 			}
-// 			if string(d) != "response data" {
-// 				t.Fatalf("Incorrect response data %q", string(d))
-// 			}
-// 			if m0.folder != "default" {
-// 				t.Fatalf("Incorrect folder %q", m0.folder)
-// 			}
-// 			if m0.name != "tn" {
-// 				t.Fatalf("Incorrect name %q", m0.name)
-// 			}
-// 			if m0.offset != 1234 {
-// 				t.Fatalf("Incorrect offset %d", m0.offset)
-// 			}
-// 			if m0.size != 5678 {
-// 				t.Fatalf("Incorrect size %d", m0.size)
-// 			}
-// 			t.Logf("Pass at %d+%d bytes", i, j)
-// 			pass = true
-// 		}
-// 	}
-// 	if !pass {
-// 		t.Fatal("Never passed")
-// 	}
-// }
-
-func TestVersionErr(t *testing.T) {
-	m0 := newTestModel()
-	m1 := newTestModel()
-
-	ar, aw := io.Pipe()
-	br, bw := io.Pipe()
-
-	c0 := NewConnection(c0ID, ar, bw, m0, "name", CompressAlways).(wireFormatConnection).next.(*rawConnection)
-	NewConnection(c1ID, br, aw, m1, "name", CompressAlways)
-
-	w := xdr.NewWriter(c0.cw)
-	w.WriteUint32(encodeHeader(header{
-		version: 2,
-		msgID:   0,
-		msgType: 0,
-	}))
-	w.WriteUint32(0) // Avoids reader closing due to EOF
-
-	if !m1.isClosed() {
-		t.Error("Connection should close due to unknown version")
-	}
-}
-
-func TestTypeErr(t *testing.T) {
-	m0 := newTestModel()
-	m1 := newTestModel()
-
-	ar, aw := io.Pipe()
-	br, bw := io.Pipe()
-
-	c0 := NewConnection(c0ID, ar, bw, m0, "name", CompressAlways).(wireFormatConnection).next.(*rawConnection)
-	NewConnection(c1ID, br, aw, m1, "name", CompressAlways)
-
-	w := xdr.NewWriter(c0.cw)
-	w.WriteUint32(encodeHeader(header{
-		version: 0,
-		msgID:   0,
-		msgType: 42,
-	}))
-	w.WriteUint32(0) // Avoids reader closing due to EOF
-
-	if !m1.isClosed() {
-		t.Error("Connection should close due to unknown message type")
-	}
-}
-
-func TestClose(t *testing.T) {
-	m0 := newTestModel()
-	m1 := newTestModel()
-
-	ar, aw := io.Pipe()
-	br, bw := io.Pipe()
-
-	c0 := NewConnection(c0ID, ar, bw, m0, "name", CompressAlways).(wireFormatConnection).next.(*rawConnection)
-	NewConnection(c1ID, br, aw, m1, "name", CompressAlways)
-
-	c0.close(nil)
-
-	<-c0.closed
-	if !m0.isClosed() {
-		t.Fatal("Connection should be closed")
-	}
-
-	// None of these should panic, some should return an error
-
-	if c0.ping() {
-		t.Error("Ping should not return true")
-	}
-
-	c0.Index("default", nil)
-	c0.Index("default", nil)
-
-	if _, err := c0.Request("default", "foo", 0, 0); err == nil {
-		t.Error("Request should return an error")
-	}
-}
-
-func TestElementSizeExceededNested(t *testing.T) {
-	m := ClusterConfigMessage{
-		Folders: []Folder{
-			{ID: "longstringlongstringlongstringinglongstringlongstringlonlongstringlongstringlon"},
-		},
-	}
-	_, err := m.EncodeXDR(ioutil.Discard)
-	if err == nil {
-		t.Errorf("ID length %d > max 64, but no error", len(m.Folders[0].ID))
-	}
-}
-
-func TestMarshalIndexMessage(t *testing.T) {
-	var quickCfg = &quick.Config{MaxCountScale: 10}
-	if testing.Short() {
-		quickCfg = nil
-	}
-
-	f := func(m1 IndexMessage) bool {
-		for _, f := range m1.Files {
-			for i := range f.Blocks {
-				f.Blocks[i].Offset = 0
-				if len(f.Blocks[i].Hash) == 0 {
-					f.Blocks[i].Hash = nil
-				}
-			}
-		}
-
-		return testMarshal(t, "index", &m1, &IndexMessage{})
-	}
-
-	if err := quick.Check(f, quickCfg); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestMarshalRequestMessage(t *testing.T) {
-	var quickCfg = &quick.Config{MaxCountScale: 10}
-	if testing.Short() {
-		quickCfg = nil
-	}
-
-	f := func(m1 RequestMessage) bool {
-		return testMarshal(t, "request", &m1, &RequestMessage{})
-	}
-
-	if err := quick.Check(f, quickCfg); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestMarshalResponseMessage(t *testing.T) {
-	var quickCfg = &quick.Config{MaxCountScale: 10}
-	if testing.Short() {
-		quickCfg = nil
-	}
-
-	f := func(m1 ResponseMessage) bool {
-		if len(m1.Data) == 0 {
-			m1.Data = nil
-		}
-		return testMarshal(t, "response", &m1, &ResponseMessage{})
-	}
-
-	if err := quick.Check(f, quickCfg); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestMarshalClusterConfigMessage(t *testing.T) {
-	var quickCfg = &quick.Config{MaxCountScale: 10}
-	if testing.Short() {
-		quickCfg = nil
-	}
-
-	f := func(m1 ClusterConfigMessage) bool {
-		return testMarshal(t, "clusterconfig", &m1, &ClusterConfigMessage{})
-	}
-
-	if err := quick.Check(f, quickCfg); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestMarshalCloseMessage(t *testing.T) {
-	var quickCfg = &quick.Config{MaxCountScale: 10}
-	if testing.Short() {
-		quickCfg = nil
-	}
-
-	f := func(m1 CloseMessage) bool {
-		return testMarshal(t, "close", &m1, &CloseMessage{})
-	}
-
-	if err := quick.Check(f, quickCfg); err != nil {
-		t.Error(err)
-	}
-}
-
-type message interface {
-	EncodeXDR(io.Writer) (int, error)
-	DecodeXDR(io.Reader) error
-}
-
-func testMarshal(t *testing.T, prefix string, m1, m2 message) bool {
-	var buf bytes.Buffer
-
-	failed := func(bc []byte) {
-		bs, _ := json.MarshalIndent(m1, "", "  ")
-		ioutil.WriteFile(prefix+"-1.txt", bs, 0644)
-		bs, _ = json.MarshalIndent(m2, "", "  ")
-		ioutil.WriteFile(prefix+"-2.txt", bs, 0644)
-		if len(bc) > 0 {
-			f, _ := os.Create(prefix + "-data.txt")
-			fmt.Fprint(f, hex.Dump(bc))
-			f.Close()
-		}
-	}
-
-	_, err := m1.EncodeXDR(&buf)
-	if err != nil && strings.Contains(err.Error(), "exceeds size") {
-		return true
-	}
-	if err != nil {
-		failed(nil)
-		t.Fatal(err)
-	}
-
-	bc := make([]byte, len(buf.Bytes()))
-	copy(bc, buf.Bytes())
-
-	err = m2.DecodeXDR(&buf)
-	if err != nil {
-		failed(bc)
-		t.Fatal(err)
-	}
-
-	ok := reflect.DeepEqual(m1, m2)
-	if !ok {
-		failed(bc)
-	}
-	return ok
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/batch.go

@@ -1,252 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"encoding/binary"
-	"fmt"
-
-	"github.com/syndtr/goleveldb/leveldb/errors"
-	"github.com/syndtr/goleveldb/leveldb/memdb"
-)
-
-type ErrBatchCorrupted struct {
-	Reason string
-}
-
-func (e *ErrBatchCorrupted) Error() string {
-	return fmt.Sprintf("leveldb: batch corrupted: %s", e.Reason)
-}
-
-func newErrBatchCorrupted(reason string) error {
-	return errors.NewErrCorrupted(nil, &ErrBatchCorrupted{reason})
-}
-
-const (
-	batchHdrLen  = 8 + 4
-	batchGrowRec = 3000
-)
-
-type BatchReplay interface {
-	Put(key, value []byte)
-	Delete(key []byte)
-}
-
-// Batch is a write batch.
-type Batch struct {
-	data       []byte
-	rLen, bLen int
-	seq        uint64
-	sync       bool
-}
-
-func (b *Batch) grow(n int) {
-	off := len(b.data)
-	if off == 0 {
-		off = batchHdrLen
-		if b.data != nil {
-			b.data = b.data[:off]
-		}
-	}
-	if cap(b.data)-off < n {
-		if b.data == nil {
-			b.data = make([]byte, off, off+n)
-		} else {
-			odata := b.data
-			div := 1
-			if b.rLen > batchGrowRec {
-				div = b.rLen / batchGrowRec
-			}
-			b.data = make([]byte, off, off+n+(off-batchHdrLen)/div)
-			copy(b.data, odata)
-		}
-	}
-}
-
-func (b *Batch) appendRec(kt kType, key, value []byte) {
-	n := 1 + binary.MaxVarintLen32 + len(key)
-	if kt == ktVal {
-		n += binary.MaxVarintLen32 + len(value)
-	}
-	b.grow(n)
-	off := len(b.data)
-	data := b.data[:off+n]
-	data[off] = byte(kt)
-	off += 1
-	off += binary.PutUvarint(data[off:], uint64(len(key)))
-	copy(data[off:], key)
-	off += len(key)
-	if kt == ktVal {
-		off += binary.PutUvarint(data[off:], uint64(len(value)))
-		copy(data[off:], value)
-		off += len(value)
-	}
-	b.data = data[:off]
-	b.rLen++
-	//  Include 8-byte ikey header
-	b.bLen += len(key) + len(value) + 8
-}
-
-// Put appends 'put operation' of the given key/value pair to the batch.
-// It is safe to modify the contents of the argument after Put returns.
-func (b *Batch) Put(key, value []byte) {
-	b.appendRec(ktVal, key, value)
-}
-
-// Delete appends 'delete operation' of the given key to the batch.
-// It is safe to modify the contents of the argument after Delete returns.
-func (b *Batch) Delete(key []byte) {
-	b.appendRec(ktDel, key, nil)
-}
-
-// Dump dumps batch contents. The returned slice can be loaded into the
-// batch using Load method.
-// The returned slice is not its own copy, so the contents should not be
-// modified.
-func (b *Batch) Dump() []byte {
-	return b.encode()
-}
-
-// Load loads given slice into the batch. Previous contents of the batch
-// will be discarded.
-// The given slice will not be copied and will be used as batch buffer, so
-// it is not safe to modify the contents of the slice.
-func (b *Batch) Load(data []byte) error {
-	return b.decode(0, data)
-}
-
-// Replay replays batch contents.
-func (b *Batch) Replay(r BatchReplay) error {
-	return b.decodeRec(func(i int, kt kType, key, value []byte) {
-		switch kt {
-		case ktVal:
-			r.Put(key, value)
-		case ktDel:
-			r.Delete(key)
-		}
-	})
-}
-
-// Len returns number of records in the batch.
-func (b *Batch) Len() int {
-	return b.rLen
-}
-
-// Reset resets the batch.
-func (b *Batch) Reset() {
-	b.data = b.data[:0]
-	b.seq = 0
-	b.rLen = 0
-	b.bLen = 0
-	b.sync = false
-}
-
-func (b *Batch) init(sync bool) {
-	b.sync = sync
-}
-
-func (b *Batch) append(p *Batch) {
-	if p.rLen > 0 {
-		b.grow(len(p.data) - batchHdrLen)
-		b.data = append(b.data, p.data[batchHdrLen:]...)
-		b.rLen += p.rLen
-	}
-	if p.sync {
-		b.sync = true
-	}
-}
-
-// size returns sums of key/value pair length plus 8-bytes ikey.
-func (b *Batch) size() int {
-	return b.bLen
-}
-
-func (b *Batch) encode() []byte {
-	b.grow(0)
-	binary.LittleEndian.PutUint64(b.data, b.seq)
-	binary.LittleEndian.PutUint32(b.data[8:], uint32(b.rLen))
-
-	return b.data
-}
-
-func (b *Batch) decode(prevSeq uint64, data []byte) error {
-	if len(data) < batchHdrLen {
-		return newErrBatchCorrupted("too short")
-	}
-
-	b.seq = binary.LittleEndian.Uint64(data)
-	if b.seq < prevSeq {
-		return newErrBatchCorrupted("invalid sequence number")
-	}
-	b.rLen = int(binary.LittleEndian.Uint32(data[8:]))
-	if b.rLen < 0 {
-		return newErrBatchCorrupted("invalid records length")
-	}
-	// No need to be precise at this point, it won't be used anyway
-	b.bLen = len(data) - batchHdrLen
-	b.data = data
-
-	return nil
-}
-
-func (b *Batch) decodeRec(f func(i int, kt kType, key, value []byte)) (err error) {
-	off := batchHdrLen
-	for i := 0; i < b.rLen; i++ {
-		if off >= len(b.data) {
-			return newErrBatchCorrupted("invalid records length")
-		}
-
-		kt := kType(b.data[off])
-		if kt > ktVal {
-			return newErrBatchCorrupted("bad record: invalid type")
-		}
-		off += 1
-
-		x, n := binary.Uvarint(b.data[off:])
-		off += n
-		if n <= 0 || off+int(x) > len(b.data) {
-			return newErrBatchCorrupted("bad record: invalid key length")
-		}
-		key := b.data[off : off+int(x)]
-		off += int(x)
-		var value []byte
-		if kt == ktVal {
-			x, n := binary.Uvarint(b.data[off:])
-			off += n
-			if n <= 0 || off+int(x) > len(b.data) {
-				return newErrBatchCorrupted("bad record: invalid value length")
-			}
-			value = b.data[off : off+int(x)]
-			off += int(x)
-		}
-
-		f(i, kt, key, value)
-	}
-
-	return nil
-}
-
-func (b *Batch) memReplay(to *memdb.DB) error {
-	return b.decodeRec(func(i int, kt kType, key, value []byte) {
-		ikey := newIkey(key, b.seq+uint64(i), kt)
-		to.Put(ikey, value)
-	})
-}
-
-func (b *Batch) memDecodeAndReplay(prevSeq uint64, data []byte, to *memdb.DB) error {
-	if err := b.decode(prevSeq, data); err != nil {
-		return err
-	}
-	return b.memReplay(to)
-}
-
-func (b *Batch) revertMemReplay(to *memdb.DB) error {
-	return b.decodeRec(func(i int, kt kType, key, value []byte) {
-		ikey := newIkey(key, b.seq+uint64(i), kt)
-		to.Delete(ikey)
-	})
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/batch_test.go

@@ -1,120 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"bytes"
-	"testing"
-
-	"github.com/syndtr/goleveldb/leveldb/comparer"
-	"github.com/syndtr/goleveldb/leveldb/memdb"
-)
-
-type tbRec struct {
-	kt         kType
-	key, value []byte
-}
-
-type testBatch struct {
-	rec []*tbRec
-}
-
-func (p *testBatch) Put(key, value []byte) {
-	p.rec = append(p.rec, &tbRec{ktVal, key, value})
-}
-
-func (p *testBatch) Delete(key []byte) {
-	p.rec = append(p.rec, &tbRec{ktDel, key, nil})
-}
-
-func compareBatch(t *testing.T, b1, b2 *Batch) {
-	if b1.seq != b2.seq {
-		t.Errorf("invalid seq number want %d, got %d", b1.seq, b2.seq)
-	}
-	if b1.Len() != b2.Len() {
-		t.Fatalf("invalid record length want %d, got %d", b1.Len(), b2.Len())
-	}
-	p1, p2 := new(testBatch), new(testBatch)
-	err := b1.Replay(p1)
-	if err != nil {
-		t.Fatal("error when replaying batch 1: ", err)
-	}
-	err = b2.Replay(p2)
-	if err != nil {
-		t.Fatal("error when replaying batch 2: ", err)
-	}
-	for i := range p1.rec {
-		r1, r2 := p1.rec[i], p2.rec[i]
-		if r1.kt != r2.kt {
-			t.Errorf("invalid type on record '%d' want %d, got %d", i, r1.kt, r2.kt)
-		}
-		if !bytes.Equal(r1.key, r2.key) {
-			t.Errorf("invalid key on record '%d' want %s, got %s", i, string(r1.key), string(r2.key))
-		}
-		if r1.kt == ktVal {
-			if !bytes.Equal(r1.value, r2.value) {
-				t.Errorf("invalid value on record '%d' want %s, got %s", i, string(r1.value), string(r2.value))
-			}
-		}
-	}
-}
-
-func TestBatch_EncodeDecode(t *testing.T) {
-	b1 := new(Batch)
-	b1.seq = 10009
-	b1.Put([]byte("key1"), []byte("value1"))
-	b1.Put([]byte("key2"), []byte("value2"))
-	b1.Delete([]byte("key1"))
-	b1.Put([]byte("k"), []byte(""))
-	b1.Put([]byte("zzzzzzzzzzz"), []byte("zzzzzzzzzzzzzzzzzzzzzzzz"))
-	b1.Delete([]byte("key10000"))
-	b1.Delete([]byte("k"))
-	buf := b1.encode()
-	b2 := new(Batch)
-	err := b2.decode(0, buf)
-	if err != nil {
-		t.Error("error when decoding batch: ", err)
-	}
-	compareBatch(t, b1, b2)
-}
-
-func TestBatch_Append(t *testing.T) {
-	b1 := new(Batch)
-	b1.seq = 10009
-	b1.Put([]byte("key1"), []byte("value1"))
-	b1.Put([]byte("key2"), []byte("value2"))
-	b1.Delete([]byte("key1"))
-	b1.Put([]byte("foo"), []byte("foovalue"))
-	b1.Put([]byte("bar"), []byte("barvalue"))
-	b2a := new(Batch)
-	b2a.seq = 10009
-	b2a.Put([]byte("key1"), []byte("value1"))
-	b2a.Put([]byte("key2"), []byte("value2"))
-	b2a.Delete([]byte("key1"))
-	b2b := new(Batch)
-	b2b.Put([]byte("foo"), []byte("foovalue"))
-	b2b.Put([]byte("bar"), []byte("barvalue"))
-	b2a.append(b2b)
-	compareBatch(t, b1, b2a)
-}
-
-func TestBatch_Size(t *testing.T) {
-	b := new(Batch)
-	for i := 0; i < 2; i++ {
-		b.Put([]byte("key1"), []byte("value1"))
-		b.Put([]byte("key2"), []byte("value2"))
-		b.Delete([]byte("key1"))
-		b.Put([]byte("foo"), []byte("foovalue"))
-		b.Put([]byte("bar"), []byte("barvalue"))
-		mem := memdb.New(&iComparer{comparer.DefaultComparer}, 0)
-		b.memReplay(mem)
-		if b.size() != mem.Size() {
-			t.Errorf("invalid batch size calculation, want=%d got=%d", mem.Size(), b.size())
-		}
-		b.Reset()
-	}
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/bench2_test.go

@@ -1,58 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// +build !go1.2
-
-package leveldb
-
-import (
-	"sync/atomic"
-	"testing"
-)
-
-func BenchmarkDBReadConcurrent(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-	p.gc()
-	defer p.close()
-
-	b.ResetTimer()
-	b.SetBytes(116)
-
-	b.RunParallel(func(pb *testing.PB) {
-		iter := p.newIter()
-		defer iter.Release()
-		for pb.Next() && iter.Next() {
-		}
-	})
-}
-
-func BenchmarkDBReadConcurrent2(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-	p.gc()
-	defer p.close()
-
-	b.ResetTimer()
-	b.SetBytes(116)
-
-	var dir uint32
-	b.RunParallel(func(pb *testing.PB) {
-		iter := p.newIter()
-		defer iter.Release()
-		if atomic.AddUint32(&dir, 1)%2 == 0 {
-			for pb.Next() && iter.Next() {
-			}
-		} else {
-			if pb.Next() && iter.Last() {
-				for pb.Next() && iter.Prev() {
-				}
-			}
-		}
-	})
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/bench_test.go

@@ -1,464 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"bytes"
-	"fmt"
-	"math/rand"
-	"os"
-	"path/filepath"
-	"runtime"
-	"testing"
-
-	"github.com/syndtr/goleveldb/leveldb/iterator"
-	"github.com/syndtr/goleveldb/leveldb/opt"
-	"github.com/syndtr/goleveldb/leveldb/storage"
-)
-
-func randomString(r *rand.Rand, n int) []byte {
-	b := new(bytes.Buffer)
-	for i := 0; i < n; i++ {
-		b.WriteByte(' ' + byte(r.Intn(95)))
-	}
-	return b.Bytes()
-}
-
-func compressibleStr(r *rand.Rand, frac float32, n int) []byte {
-	nn := int(float32(n) * frac)
-	rb := randomString(r, nn)
-	b := make([]byte, 0, n+nn)
-	for len(b) < n {
-		b = append(b, rb...)
-	}
-	return b[:n]
-}
-
-type valueGen struct {
-	src []byte
-	pos int
-}
-
-func newValueGen(frac float32) *valueGen {
-	v := new(valueGen)
-	r := rand.New(rand.NewSource(301))
-	v.src = make([]byte, 0, 1048576+100)
-	for len(v.src) < 1048576 {
-		v.src = append(v.src, compressibleStr(r, frac, 100)...)
-	}
-	return v
-}
-
-func (v *valueGen) get(n int) []byte {
-	if v.pos+n > len(v.src) {
-		v.pos = 0
-	}
-	v.pos += n
-	return v.src[v.pos-n : v.pos]
-}
-
-var benchDB = filepath.Join(os.TempDir(), fmt.Sprintf("goleveldbbench-%d", os.Getuid()))
-
-type dbBench struct {
-	b    *testing.B
-	stor storage.Storage
-	db   *DB
-
-	o  *opt.Options
-	ro *opt.ReadOptions
-	wo *opt.WriteOptions
-
-	keys, values [][]byte
-}
-
-func openDBBench(b *testing.B, noCompress bool) *dbBench {
-	_, err := os.Stat(benchDB)
-	if err == nil {
-		err = os.RemoveAll(benchDB)
-		if err != nil {
-			b.Fatal("cannot remove old db: ", err)
-		}
-	}
-
-	p := &dbBench{
-		b:  b,
-		o:  &opt.Options{},
-		ro: &opt.ReadOptions{},
-		wo: &opt.WriteOptions{},
-	}
-	p.stor, err = storage.OpenFile(benchDB)
-	if err != nil {
-		b.Fatal("cannot open stor: ", err)
-	}
-	if noCompress {
-		p.o.Compression = opt.NoCompression
-	}
-
-	p.db, err = Open(p.stor, p.o)
-	if err != nil {
-		b.Fatal("cannot open db: ", err)
-	}
-
-	runtime.GOMAXPROCS(runtime.NumCPU())
-	return p
-}
-
-func (p *dbBench) reopen() {
-	p.db.Close()
-	var err error
-	p.db, err = Open(p.stor, p.o)
-	if err != nil {
-		p.b.Fatal("Reopen: got error: ", err)
-	}
-}
-
-func (p *dbBench) populate(n int) {
-	p.keys, p.values = make([][]byte, n), make([][]byte, n)
-	v := newValueGen(0.5)
-	for i := range p.keys {
-		p.keys[i], p.values[i] = []byte(fmt.Sprintf("%016d", i)), v.get(100)
-	}
-}
-
-func (p *dbBench) randomize() {
-	m := len(p.keys)
-	times := m * 2
-	r1, r2 := rand.New(rand.NewSource(0xdeadbeef)), rand.New(rand.NewSource(0xbeefface))
-	for n := 0; n < times; n++ {
-		i, j := r1.Int()%m, r2.Int()%m
-		if i == j {
-			continue
-		}
-		p.keys[i], p.keys[j] = p.keys[j], p.keys[i]
-		p.values[i], p.values[j] = p.values[j], p.values[i]
-	}
-}
-
-func (p *dbBench) writes(perBatch int) {
-	b := p.b
-	db := p.db
-
-	n := len(p.keys)
-	m := n / perBatch
-	if n%perBatch > 0 {
-		m++
-	}
-	batches := make([]Batch, m)
-	j := 0
-	for i := range batches {
-		first := true
-		for ; j < n && ((j+1)%perBatch != 0 || first); j++ {
-			first = false
-			batches[i].Put(p.keys[j], p.values[j])
-		}
-	}
-	runtime.GC()
-
-	b.ResetTimer()
-	b.StartTimer()
-	for i := range batches {
-		err := db.Write(&(batches[i]), p.wo)
-		if err != nil {
-			b.Fatal("write failed: ", err)
-		}
-	}
-	b.StopTimer()
-	b.SetBytes(116)
-}
-
-func (p *dbBench) gc() {
-	p.keys, p.values = nil, nil
-	runtime.GC()
-}
-
-func (p *dbBench) puts() {
-	b := p.b
-	db := p.db
-
-	b.ResetTimer()
-	b.StartTimer()
-	for i := range p.keys {
-		err := db.Put(p.keys[i], p.values[i], p.wo)
-		if err != nil {
-			b.Fatal("put failed: ", err)
-		}
-	}
-	b.StopTimer()
-	b.SetBytes(116)
-}
-
-func (p *dbBench) fill() {
-	b := p.b
-	db := p.db
-
-	perBatch := 10000
-	batch := new(Batch)
-	for i, n := 0, len(p.keys); i < n; {
-		first := true
-		for ; i < n && ((i+1)%perBatch != 0 || first); i++ {
-			first = false
-			batch.Put(p.keys[i], p.values[i])
-		}
-		err := db.Write(batch, p.wo)
-		if err != nil {
-			b.Fatal("write failed: ", err)
-		}
-		batch.Reset()
-	}
-}
-
-func (p *dbBench) gets() {
-	b := p.b
-	db := p.db
-
-	b.ResetTimer()
-	for i := range p.keys {
-		_, err := db.Get(p.keys[i], p.ro)
-		if err != nil {
-			b.Error("got error: ", err)
-		}
-	}
-	b.StopTimer()
-}
-
-func (p *dbBench) seeks() {
-	b := p.b
-
-	iter := p.newIter()
-	defer iter.Release()
-	b.ResetTimer()
-	for i := range p.keys {
-		if !iter.Seek(p.keys[i]) {
-			b.Error("value not found for: ", string(p.keys[i]))
-		}
-	}
-	b.StopTimer()
-}
-
-func (p *dbBench) newIter() iterator.Iterator {
-	iter := p.db.NewIterator(nil, p.ro)
-	err := iter.Error()
-	if err != nil {
-		p.b.Fatal("cannot create iterator: ", err)
-	}
-	return iter
-}
-
-func (p *dbBench) close() {
-	if bp, err := p.db.GetProperty("leveldb.blockpool"); err == nil {
-		p.b.Log("Block pool stats: ", bp)
-	}
-	p.db.Close()
-	p.stor.Close()
-	os.RemoveAll(benchDB)
-	p.db = nil
-	p.keys = nil
-	p.values = nil
-	runtime.GC()
-	runtime.GOMAXPROCS(1)
-}
-
-func BenchmarkDBWrite(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.writes(1)
-	p.close()
-}
-
-func BenchmarkDBWriteBatch(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.writes(1000)
-	p.close()
-}
-
-func BenchmarkDBWriteUncompressed(b *testing.B) {
-	p := openDBBench(b, true)
-	p.populate(b.N)
-	p.writes(1)
-	p.close()
-}
-
-func BenchmarkDBWriteBatchUncompressed(b *testing.B) {
-	p := openDBBench(b, true)
-	p.populate(b.N)
-	p.writes(1000)
-	p.close()
-}
-
-func BenchmarkDBWriteRandom(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.randomize()
-	p.writes(1)
-	p.close()
-}
-
-func BenchmarkDBWriteRandomSync(b *testing.B) {
-	p := openDBBench(b, false)
-	p.wo.Sync = true
-	p.populate(b.N)
-	p.writes(1)
-	p.close()
-}
-
-func BenchmarkDBOverwrite(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.writes(1)
-	p.writes(1)
-	p.close()
-}
-
-func BenchmarkDBOverwriteRandom(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.writes(1)
-	p.randomize()
-	p.writes(1)
-	p.close()
-}
-
-func BenchmarkDBPut(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.puts()
-	p.close()
-}
-
-func BenchmarkDBRead(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-	p.gc()
-
-	iter := p.newIter()
-	b.ResetTimer()
-	for iter.Next() {
-	}
-	iter.Release()
-	b.StopTimer()
-	b.SetBytes(116)
-	p.close()
-}
-
-func BenchmarkDBReadGC(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-
-	iter := p.newIter()
-	b.ResetTimer()
-	for iter.Next() {
-	}
-	iter.Release()
-	b.StopTimer()
-	b.SetBytes(116)
-	p.close()
-}
-
-func BenchmarkDBReadUncompressed(b *testing.B) {
-	p := openDBBench(b, true)
-	p.populate(b.N)
-	p.fill()
-	p.gc()
-
-	iter := p.newIter()
-	b.ResetTimer()
-	for iter.Next() {
-	}
-	iter.Release()
-	b.StopTimer()
-	b.SetBytes(116)
-	p.close()
-}
-
-func BenchmarkDBReadTable(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-	p.reopen()
-	p.gc()
-
-	iter := p.newIter()
-	b.ResetTimer()
-	for iter.Next() {
-	}
-	iter.Release()
-	b.StopTimer()
-	b.SetBytes(116)
-	p.close()
-}
-
-func BenchmarkDBReadReverse(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-	p.gc()
-
-	iter := p.newIter()
-	b.ResetTimer()
-	iter.Last()
-	for iter.Prev() {
-	}
-	iter.Release()
-	b.StopTimer()
-	b.SetBytes(116)
-	p.close()
-}
-
-func BenchmarkDBReadReverseTable(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-	p.reopen()
-	p.gc()
-
-	iter := p.newIter()
-	b.ResetTimer()
-	iter.Last()
-	for iter.Prev() {
-	}
-	iter.Release()
-	b.StopTimer()
-	b.SetBytes(116)
-	p.close()
-}
-
-func BenchmarkDBSeek(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-	p.seeks()
-	p.close()
-}
-
-func BenchmarkDBSeekRandom(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-	p.randomize()
-	p.seeks()
-	p.close()
-}
-
-func BenchmarkDBGet(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-	p.gets()
-	p.close()
-}
-
-func BenchmarkDBGetRandom(b *testing.B) {
-	p := openDBBench(b, false)
-	p.populate(b.N)
-	p.fill()
-	p.randomize()
-	p.gets()
-	p.close()
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/cache/bench2_test.go

@@ -1,30 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// +build !go1.2
-
-package cache
-
-import (
-	"math/rand"
-	"testing"
-)
-
-func BenchmarkLRUCache(b *testing.B) {
-	c := NewCache(NewLRU(10000))
-
-	b.SetParallelism(10)
-	b.RunParallel(func(pb *testing.PB) {
-		r := rand.New(rand.NewSource(time.Now().UnixNano()))
-
-		for pb.Next() {
-			key := uint64(r.Intn(1000000))
-			c.Get(0, key, func() (int, Value) {
-				return 1, key
-			}).Release()
-		}
-	})
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/cache/cache.go

@@ -1,676 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Package cache provides interface and implementation of a cache algorithms.
-package cache
-
-import (
-	"sync"
-	"sync/atomic"
-	"unsafe"
-
-	"github.com/syndtr/goleveldb/leveldb/util"
-)
-
-// Cacher provides interface to implements a caching functionality.
-// An implementation must be goroutine-safe.
-type Cacher interface {
-	// Capacity returns cache capacity.
-	Capacity() int
-
-	// SetCapacity sets cache capacity.
-	SetCapacity(capacity int)
-
-	// Promote promotes the 'cache node'.
-	Promote(n *Node)
-
-	// Ban evicts the 'cache node' and prevent subsequent 'promote'.
-	Ban(n *Node)
-
-	// Evict evicts the 'cache node'.
-	Evict(n *Node)
-
-	// EvictNS evicts 'cache node' with the given namespace.
-	EvictNS(ns uint64)
-
-	// EvictAll evicts all 'cache node'.
-	EvictAll()
-
-	// Close closes the 'cache tree'
-	Close() error
-}
-
-// Value is a 'cacheable object'. It may implements util.Releaser, if
-// so the the Release method will be called once object is released.
-type Value interface{}
-
-type CacheGetter struct {
-	Cache *Cache
-	NS    uint64
-}
-
-func (g *CacheGetter) Get(key uint64, setFunc func() (size int, value Value)) *Handle {
-	return g.Cache.Get(g.NS, key, setFunc)
-}
-
-// The hash tables implementation is based on:
-// "Dynamic-Sized Nonblocking Hash Tables", by Yujie Liu, Kunlong Zhang, and Michael Spear. ACM Symposium on Principles of Distributed Computing, Jul 2014.
-
-const (
-	mInitialSize           = 1 << 4
-	mOverflowThreshold     = 1 << 5
-	mOverflowGrowThreshold = 1 << 7
-)
-
-type mBucket struct {
-	mu     sync.Mutex
-	node   []*Node
-	frozen bool
-}
-
-func (b *mBucket) freeze() []*Node {
-	b.mu.Lock()
-	defer b.mu.Unlock()
-	if !b.frozen {
-		b.frozen = true
-	}
-	return b.node
-}
-
-func (b *mBucket) get(r *Cache, h *mNode, hash uint32, ns, key uint64, noset bool) (done, added bool, n *Node) {
-	b.mu.Lock()
-
-	if b.frozen {
-		b.mu.Unlock()
-		return
-	}
-
-	// Scan the node.
-	for _, n := range b.node {
-		if n.hash == hash && n.ns == ns && n.key == key {
-			atomic.AddInt32(&n.ref, 1)
-			b.mu.Unlock()
-			return true, false, n
-		}
-	}
-
-	// Get only.
-	if noset {
-		b.mu.Unlock()
-		return true, false, nil
-	}
-
-	// Create node.
-	n = &Node{
-		r:    r,
-		hash: hash,
-		ns:   ns,
-		key:  key,
-		ref:  1,
-	}
-	// Add node to bucket.
-	b.node = append(b.node, n)
-	bLen := len(b.node)
-	b.mu.Unlock()
-
-	// Update counter.
-	grow := atomic.AddInt32(&r.nodes, 1) >= h.growThreshold
-	if bLen > mOverflowThreshold {
-		grow = grow || atomic.AddInt32(&h.overflow, 1) >= mOverflowGrowThreshold
-	}
-
-	// Grow.
-	if grow && atomic.CompareAndSwapInt32(&h.resizeInProgess, 0, 1) {
-		nhLen := len(h.buckets) << 1
-		nh := &mNode{
-			buckets:         make([]unsafe.Pointer, nhLen),
-			mask:            uint32(nhLen) - 1,
-			pred:            unsafe.Pointer(h),
-			growThreshold:   int32(nhLen * mOverflowThreshold),
-			shrinkThreshold: int32(nhLen >> 1),
-		}
-		ok := atomic.CompareAndSwapPointer(&r.mHead, unsafe.Pointer(h), unsafe.Pointer(nh))
-		if !ok {
-			panic("BUG: failed swapping head")
-		}
-		go nh.initBuckets()
-	}
-
-	return true, true, n
-}
-
-func (b *mBucket) delete(r *Cache, h *mNode, hash uint32, ns, key uint64) (done, deleted bool) {
-	b.mu.Lock()
-
-	if b.frozen {
-		b.mu.Unlock()
-		return
-	}
-
-	// Scan the node.
-	var (
-		n    *Node
-		bLen int
-	)
-	for i := range b.node {
-		n = b.node[i]
-		if n.ns == ns && n.key == key {
-			if atomic.LoadInt32(&n.ref) == 0 {
-				deleted = true
-
-				// Call releaser.
-				if n.value != nil {
-					if r, ok := n.value.(util.Releaser); ok {
-						r.Release()
-					}
-					n.value = nil
-				}
-
-				// Remove node from bucket.
-				b.node = append(b.node[:i], b.node[i+1:]...)
-				bLen = len(b.node)
-			}
-			break
-		}
-	}
-	b.mu.Unlock()
-
-	if deleted {
-		// Call OnDel.
-		for _, f := range n.onDel {
-			f()
-		}
-
-		// Update counter.
-		atomic.AddInt32(&r.size, int32(n.size)*-1)
-		shrink := atomic.AddInt32(&r.nodes, -1) < h.shrinkThreshold
-		if bLen >= mOverflowThreshold {
-			atomic.AddInt32(&h.overflow, -1)
-		}
-
-		// Shrink.
-		if shrink && len(h.buckets) > mInitialSize && atomic.CompareAndSwapInt32(&h.resizeInProgess, 0, 1) {
-			nhLen := len(h.buckets) >> 1
-			nh := &mNode{
-				buckets:         make([]unsafe.Pointer, nhLen),
-				mask:            uint32(nhLen) - 1,
-				pred:            unsafe.Pointer(h),
-				growThreshold:   int32(nhLen * mOverflowThreshold),
-				shrinkThreshold: int32(nhLen >> 1),
-			}
-			ok := atomic.CompareAndSwapPointer(&r.mHead, unsafe.Pointer(h), unsafe.Pointer(nh))
-			if !ok {
-				panic("BUG: failed swapping head")
-			}
-			go nh.initBuckets()
-		}
-	}
-
-	return true, deleted
-}
-
-type mNode struct {
-	buckets         []unsafe.Pointer // []*mBucket
-	mask            uint32
-	pred            unsafe.Pointer // *mNode
-	resizeInProgess int32
-
-	overflow        int32
-	growThreshold   int32
-	shrinkThreshold int32
-}
-
-func (n *mNode) initBucket(i uint32) *mBucket {
-	if b := (*mBucket)(atomic.LoadPointer(&n.buckets[i])); b != nil {
-		return b
-	}
-
-	p := (*mNode)(atomic.LoadPointer(&n.pred))
-	if p != nil {
-		var node []*Node
-		if n.mask > p.mask {
-			// Grow.
-			pb := (*mBucket)(atomic.LoadPointer(&p.buckets[i&p.mask]))
-			if pb == nil {
-				pb = p.initBucket(i & p.mask)
-			}
-			m := pb.freeze()
-			// Split nodes.
-			for _, x := range m {
-				if x.hash&n.mask == i {
-					node = append(node, x)
-				}
-			}
-		} else {
-			// Shrink.
-			pb0 := (*mBucket)(atomic.LoadPointer(&p.buckets[i]))
-			if pb0 == nil {
-				pb0 = p.initBucket(i)
-			}
-			pb1 := (*mBucket)(atomic.LoadPointer(&p.buckets[i+uint32(len(n.buckets))]))
-			if pb1 == nil {
-				pb1 = p.initBucket(i + uint32(len(n.buckets)))
-			}
-			m0 := pb0.freeze()
-			m1 := pb1.freeze()
-			// Merge nodes.
-			node = make([]*Node, 0, len(m0)+len(m1))
-			node = append(node, m0...)
-			node = append(node, m1...)
-		}
-		b := &mBucket{node: node}
-		if atomic.CompareAndSwapPointer(&n.buckets[i], nil, unsafe.Pointer(b)) {
-			if len(node) > mOverflowThreshold {
-				atomic.AddInt32(&n.overflow, int32(len(node)-mOverflowThreshold))
-			}
-			return b
-		}
-	}
-
-	return (*mBucket)(atomic.LoadPointer(&n.buckets[i]))
-}
-
-func (n *mNode) initBuckets() {
-	for i := range n.buckets {
-		n.initBucket(uint32(i))
-	}
-	atomic.StorePointer(&n.pred, nil)
-}
-
-// Cache is a 'cache map'.
-type Cache struct {
-	mu     sync.RWMutex
-	mHead  unsafe.Pointer // *mNode
-	nodes  int32
-	size   int32
-	cacher Cacher
-	closed bool
-}
-
-// NewCache creates a new 'cache map'. The cacher is optional and
-// may be nil.
-func NewCache(cacher Cacher) *Cache {
-	h := &mNode{
-		buckets:         make([]unsafe.Pointer, mInitialSize),
-		mask:            mInitialSize - 1,
-		growThreshold:   int32(mInitialSize * mOverflowThreshold),
-		shrinkThreshold: 0,
-	}
-	for i := range h.buckets {
-		h.buckets[i] = unsafe.Pointer(&mBucket{})
-	}
-	r := &Cache{
-		mHead:  unsafe.Pointer(h),
-		cacher: cacher,
-	}
-	return r
-}
-
-func (r *Cache) getBucket(hash uint32) (*mNode, *mBucket) {
-	h := (*mNode)(atomic.LoadPointer(&r.mHead))
-	i := hash & h.mask
-	b := (*mBucket)(atomic.LoadPointer(&h.buckets[i]))
-	if b == nil {
-		b = h.initBucket(i)
-	}
-	return h, b
-}
-
-func (r *Cache) delete(n *Node) bool {
-	for {
-		h, b := r.getBucket(n.hash)
-		done, deleted := b.delete(r, h, n.hash, n.ns, n.key)
-		if done {
-			return deleted
-		}
-	}
-	return false
-}
-
-// Nodes returns number of 'cache node' in the map.
-func (r *Cache) Nodes() int {
-	return int(atomic.LoadInt32(&r.nodes))
-}
-
-// Size returns sums of 'cache node' size in the map.
-func (r *Cache) Size() int {
-	return int(atomic.LoadInt32(&r.size))
-}
-
-// Capacity returns cache capacity.
-func (r *Cache) Capacity() int {
-	if r.cacher == nil {
-		return 0
-	}
-	return r.cacher.Capacity()
-}
-
-// SetCapacity sets cache capacity.
-func (r *Cache) SetCapacity(capacity int) {
-	if r.cacher != nil {
-		r.cacher.SetCapacity(capacity)
-	}
-}
-
-// Get gets 'cache node' with the given namespace and key.
-// If cache node is not found and setFunc is not nil, Get will atomically creates
-// the 'cache node' by calling setFunc. Otherwise Get will returns nil.
-//
-// The returned 'cache handle' should be released after use by calling Release
-// method.
-func (r *Cache) Get(ns, key uint64, setFunc func() (size int, value Value)) *Handle {
-	r.mu.RLock()
-	defer r.mu.RUnlock()
-	if r.closed {
-		return nil
-	}
-
-	hash := murmur32(ns, key, 0xf00)
-	for {
-		h, b := r.getBucket(hash)
-		done, _, n := b.get(r, h, hash, ns, key, setFunc == nil)
-		if done {
-			if n != nil {
-				n.mu.Lock()
-				if n.value == nil {
-					if setFunc == nil {
-						n.mu.Unlock()
-						n.unref()
-						return nil
-					}
-
-					n.size, n.value = setFunc()
-					if n.value == nil {
-						n.size = 0
-						n.mu.Unlock()
-						n.unref()
-						return nil
-					}
-					atomic.AddInt32(&r.size, int32(n.size))
-				}
-				n.mu.Unlock()
-				if r.cacher != nil {
-					r.cacher.Promote(n)
-				}
-				return &Handle{unsafe.Pointer(n)}
-			}
-
-			break
-		}
-	}
-	return nil
-}
-
-// Delete removes and ban 'cache node' with the given namespace and key.
-// A banned 'cache node' will never inserted into the 'cache tree'. Ban
-// only attributed to the particular 'cache node', so when a 'cache node'
-// is recreated it will not be banned.
-//
-// If onDel is not nil, then it will be executed if such 'cache node'
-// doesn't exist or once the 'cache node' is released.
-//
-// Delete return true is such 'cache node' exist.
-func (r *Cache) Delete(ns, key uint64, onDel func()) bool {
-	r.mu.RLock()
-	defer r.mu.RUnlock()
-	if r.closed {
-		return false
-	}
-
-	hash := murmur32(ns, key, 0xf00)
-	for {
-		h, b := r.getBucket(hash)
-		done, _, n := b.get(r, h, hash, ns, key, true)
-		if done {
-			if n != nil {
-				if onDel != nil {
-					n.mu.Lock()
-					n.onDel = append(n.onDel, onDel)
-					n.mu.Unlock()
-				}
-				if r.cacher != nil {
-					r.cacher.Ban(n)
-				}
-				n.unref()
-				return true
-			}
-
-			break
-		}
-	}
-
-	if onDel != nil {
-		onDel()
-	}
-
-	return false
-}
-
-// Evict evicts 'cache node' with the given namespace and key. This will
-// simply call Cacher.Evict.
-//
-// Evict return true is such 'cache node' exist.
-func (r *Cache) Evict(ns, key uint64) bool {
-	r.mu.RLock()
-	defer r.mu.RUnlock()
-	if r.closed {
-		return false
-	}
-
-	hash := murmur32(ns, key, 0xf00)
-	for {
-		h, b := r.getBucket(hash)
-		done, _, n := b.get(r, h, hash, ns, key, true)
-		if done {
-			if n != nil {
-				if r.cacher != nil {
-					r.cacher.Evict(n)
-				}
-				n.unref()
-				return true
-			}
-
-			break
-		}
-	}
-
-	return false
-}
-
-// EvictNS evicts 'cache node' with the given namespace. This will
-// simply call Cacher.EvictNS.
-func (r *Cache) EvictNS(ns uint64) {
-	r.mu.RLock()
-	defer r.mu.RUnlock()
-	if r.closed {
-		return
-	}
-
-	if r.cacher != nil {
-		r.cacher.EvictNS(ns)
-	}
-}
-
-// EvictAll evicts all 'cache node'. This will simply call Cacher.EvictAll.
-func (r *Cache) EvictAll() {
-	r.mu.RLock()
-	defer r.mu.RUnlock()
-	if r.closed {
-		return
-	}
-
-	if r.cacher != nil {
-		r.cacher.EvictAll()
-	}
-}
-
-// Close closes the 'cache map' and releases all 'cache node'.
-func (r *Cache) Close() error {
-	r.mu.Lock()
-	if !r.closed {
-		r.closed = true
-
-		if r.cacher != nil {
-			if err := r.cacher.Close(); err != nil {
-				return err
-			}
-		}
-
-		h := (*mNode)(r.mHead)
-		h.initBuckets()
-
-		for i := range h.buckets {
-			b := (*mBucket)(h.buckets[i])
-			for _, n := range b.node {
-				// Call releaser.
-				if n.value != nil {
-					if r, ok := n.value.(util.Releaser); ok {
-						r.Release()
-					}
-					n.value = nil
-				}
-
-				// Call OnDel.
-				for _, f := range n.onDel {
-					f()
-				}
-			}
-		}
-	}
-	r.mu.Unlock()
-	return nil
-}
-
-// Node is a 'cache node'.
-type Node struct {
-	r *Cache
-
-	hash    uint32
-	ns, key uint64
-
-	mu    sync.Mutex
-	size  int
-	value Value
-
-	ref   int32
-	onDel []func()
-
-	CacheData unsafe.Pointer
-}
-
-// NS returns this 'cache node' namespace.
-func (n *Node) NS() uint64 {
-	return n.ns
-}
-
-// Key returns this 'cache node' key.
-func (n *Node) Key() uint64 {
-	return n.key
-}
-
-// Size returns this 'cache node' size.
-func (n *Node) Size() int {
-	return n.size
-}
-
-// Value returns this 'cache node' value.
-func (n *Node) Value() Value {
-	return n.value
-}
-
-// Ref returns this 'cache node' ref counter.
-func (n *Node) Ref() int32 {
-	return atomic.LoadInt32(&n.ref)
-}
-
-// GetHandle returns an handle for this 'cache node'.
-func (n *Node) GetHandle() *Handle {
-	if atomic.AddInt32(&n.ref, 1) <= 1 {
-		panic("BUG: Node.GetHandle on zero ref")
-	}
-	return &Handle{unsafe.Pointer(n)}
-}
-
-func (n *Node) unref() {
-	if atomic.AddInt32(&n.ref, -1) == 0 {
-		n.r.delete(n)
-	}
-}
-
-func (n *Node) unrefLocked() {
-	if atomic.AddInt32(&n.ref, -1) == 0 {
-		n.r.mu.RLock()
-		if !n.r.closed {
-			n.r.delete(n)
-		}
-		n.r.mu.RUnlock()
-	}
-}
-
-type Handle struct {
-	n unsafe.Pointer // *Node
-}
-
-func (h *Handle) Value() Value {
-	n := (*Node)(atomic.LoadPointer(&h.n))
-	if n != nil {
-		return n.value
-	}
-	return nil
-}
-
-func (h *Handle) Release() {
-	nPtr := atomic.LoadPointer(&h.n)
-	if nPtr != nil && atomic.CompareAndSwapPointer(&h.n, nPtr, nil) {
-		n := (*Node)(nPtr)
-		n.unrefLocked()
-	}
-}
-
-func murmur32(ns, key uint64, seed uint32) uint32 {
-	const (
-		m = uint32(0x5bd1e995)
-		r = 24
-	)
-
-	k1 := uint32(ns >> 32)
-	k2 := uint32(ns)
-	k3 := uint32(key >> 32)
-	k4 := uint32(key)
-
-	k1 *= m
-	k1 ^= k1 >> r
-	k1 *= m
-
-	k2 *= m
-	k2 ^= k2 >> r
-	k2 *= m
-
-	k3 *= m
-	k3 ^= k3 >> r
-	k3 *= m
-
-	k4 *= m
-	k4 ^= k4 >> r
-	k4 *= m
-
-	h := seed
-
-	h *= m
-	h ^= k1
-	h *= m
-	h ^= k2
-	h *= m
-	h ^= k3
-	h *= m
-	h ^= k4
-
-	h ^= h >> 13
-	h *= m
-	h ^= h >> 15
-
-	return h
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/cache/cache_test.go

@@ -1,554 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package cache
-
-import (
-	"math/rand"
-	"runtime"
-	"sync"
-	"sync/atomic"
-	"testing"
-	"time"
-	"unsafe"
-)
-
-type int32o int32
-
-func (o *int32o) acquire() {
-	if atomic.AddInt32((*int32)(o), 1) != 1 {
-		panic("BUG: invalid ref")
-	}
-}
-
-func (o *int32o) Release() {
-	if atomic.AddInt32((*int32)(o), -1) != 0 {
-		panic("BUG: invalid ref")
-	}
-}
-
-type releaserFunc struct {
-	fn    func()
-	value Value
-}
-
-func (r releaserFunc) Release() {
-	if r.fn != nil {
-		r.fn()
-	}
-}
-
-func set(c *Cache, ns, key uint64, value Value, charge int, relf func()) *Handle {
-	return c.Get(ns, key, func() (int, Value) {
-		if relf != nil {
-			return charge, releaserFunc{relf, value}
-		} else {
-			return charge, value
-		}
-	})
-}
-
-func TestCacheMap(t *testing.T) {
-	runtime.GOMAXPROCS(runtime.NumCPU())
-
-	nsx := []struct {
-		nobjects, nhandles, concurrent, repeat int
-	}{
-		{10000, 400, 50, 3},
-		{100000, 1000, 100, 10},
-	}
-
-	var (
-		objects [][]int32o
-		handles [][]unsafe.Pointer
-	)
-
-	for _, x := range nsx {
-		objects = append(objects, make([]int32o, x.nobjects))
-		handles = append(handles, make([]unsafe.Pointer, x.nhandles))
-	}
-
-	c := NewCache(nil)
-
-	wg := new(sync.WaitGroup)
-	var done int32
-
-	for ns, x := range nsx {
-		for i := 0; i < x.concurrent; i++ {
-			wg.Add(1)
-			go func(ns, i, repeat int, objects []int32o, handles []unsafe.Pointer) {
-				defer wg.Done()
-				r := rand.New(rand.NewSource(time.Now().UnixNano()))
-
-				for j := len(objects) * repeat; j >= 0; j-- {
-					key := uint64(r.Intn(len(objects)))
-					h := c.Get(uint64(ns), key, func() (int, Value) {
-						o := &objects[key]
-						o.acquire()
-						return 1, o
-					})
-					if v := h.Value().(*int32o); v != &objects[key] {
-						t.Fatalf("#%d invalid value: want=%p got=%p", ns, &objects[key], v)
-					}
-					if objects[key] != 1 {
-						t.Fatalf("#%d invalid object %d: %d", ns, key, objects[key])
-					}
-					if !atomic.CompareAndSwapPointer(&handles[r.Intn(len(handles))], nil, unsafe.Pointer(h)) {
-						h.Release()
-					}
-				}
-			}(ns, i, x.repeat, objects[ns], handles[ns])
-		}
-
-		go func(handles []unsafe.Pointer) {
-			r := rand.New(rand.NewSource(time.Now().UnixNano()))
-
-			for atomic.LoadInt32(&done) == 0 {
-				i := r.Intn(len(handles))
-				h := (*Handle)(atomic.LoadPointer(&handles[i]))
-				if h != nil && atomic.CompareAndSwapPointer(&handles[i], unsafe.Pointer(h), nil) {
-					h.Release()
-				}
-				time.Sleep(time.Millisecond)
-			}
-		}(handles[ns])
-	}
-
-	go func() {
-		handles := make([]*Handle, 100000)
-		for atomic.LoadInt32(&done) == 0 {
-			for i := range handles {
-				handles[i] = c.Get(999999999, uint64(i), func() (int, Value) {
-					return 1, 1
-				})
-			}
-			for _, h := range handles {
-				h.Release()
-			}
-		}
-	}()
-
-	wg.Wait()
-
-	atomic.StoreInt32(&done, 1)
-
-	for _, handles0 := range handles {
-		for i := range handles0 {
-			h := (*Handle)(atomic.LoadPointer(&handles0[i]))
-			if h != nil && atomic.CompareAndSwapPointer(&handles0[i], unsafe.Pointer(h), nil) {
-				h.Release()
-			}
-		}
-	}
-
-	for ns, objects0 := range objects {
-		for i, o := range objects0 {
-			if o != 0 {
-				t.Fatalf("invalid object #%d.%d: ref=%d", ns, i, o)
-			}
-		}
-	}
-}
-
-func TestCacheMap_NodesAndSize(t *testing.T) {
-	c := NewCache(nil)
-	if c.Nodes() != 0 {
-		t.Errorf("invalid nodes counter: want=%d got=%d", 0, c.Nodes())
-	}
-	if c.Size() != 0 {
-		t.Errorf("invalid size counter: want=%d got=%d", 0, c.Size())
-	}
-	set(c, 0, 1, 1, 1, nil)
-	set(c, 0, 2, 2, 2, nil)
-	set(c, 1, 1, 3, 3, nil)
-	set(c, 2, 1, 4, 1, nil)
-	if c.Nodes() != 4 {
-		t.Errorf("invalid nodes counter: want=%d got=%d", 4, c.Nodes())
-	}
-	if c.Size() != 7 {
-		t.Errorf("invalid size counter: want=%d got=%d", 4, c.Size())
-	}
-}
-
-func TestLRUCache_Capacity(t *testing.T) {
-	c := NewCache(NewLRU(10))
-	if c.Capacity() != 10 {
-		t.Errorf("invalid capacity: want=%d got=%d", 10, c.Capacity())
-	}
-	set(c, 0, 1, 1, 1, nil).Release()
-	set(c, 0, 2, 2, 2, nil).Release()
-	set(c, 1, 1, 3, 3, nil).Release()
-	set(c, 2, 1, 4, 1, nil).Release()
-	set(c, 2, 2, 5, 1, nil).Release()
-	set(c, 2, 3, 6, 1, nil).Release()
-	set(c, 2, 4, 7, 1, nil).Release()
-	set(c, 2, 5, 8, 1, nil).Release()
-	if c.Nodes() != 7 {
-		t.Errorf("invalid nodes counter: want=%d got=%d", 7, c.Nodes())
-	}
-	if c.Size() != 10 {
-		t.Errorf("invalid size counter: want=%d got=%d", 10, c.Size())
-	}
-	c.SetCapacity(9)
-	if c.Capacity() != 9 {
-		t.Errorf("invalid capacity: want=%d got=%d", 9, c.Capacity())
-	}
-	if c.Nodes() != 6 {
-		t.Errorf("invalid nodes counter: want=%d got=%d", 6, c.Nodes())
-	}
-	if c.Size() != 8 {
-		t.Errorf("invalid size counter: want=%d got=%d", 8, c.Size())
-	}
-}
-
-func TestCacheMap_NilValue(t *testing.T) {
-	c := NewCache(NewLRU(10))
-	h := c.Get(0, 0, func() (size int, value Value) {
-		return 1, nil
-	})
-	if h != nil {
-		t.Error("cache handle is non-nil")
-	}
-	if c.Nodes() != 0 {
-		t.Errorf("invalid nodes counter: want=%d got=%d", 0, c.Nodes())
-	}
-	if c.Size() != 0 {
-		t.Errorf("invalid size counter: want=%d got=%d", 0, c.Size())
-	}
-}
-
-func TestLRUCache_GetLatency(t *testing.T) {
-	runtime.GOMAXPROCS(runtime.NumCPU())
-
-	const (
-		concurrentSet = 30
-		concurrentGet = 3
-		duration      = 3 * time.Second
-		delay         = 3 * time.Millisecond
-		maxkey        = 100000
-	)
-
-	var (
-		set, getHit, getAll        int32
-		getMaxLatency, getDuration int64
-	)
-
-	c := NewCache(NewLRU(5000))
-	wg := &sync.WaitGroup{}
-	until := time.Now().Add(duration)
-	for i := 0; i < concurrentSet; i++ {
-		wg.Add(1)
-		go func(i int) {
-			defer wg.Done()
-			r := rand.New(rand.NewSource(time.Now().UnixNano()))
-			for time.Now().Before(until) {
-				c.Get(0, uint64(r.Intn(maxkey)), func() (int, Value) {
-					time.Sleep(delay)
-					atomic.AddInt32(&set, 1)
-					return 1, 1
-				}).Release()
-			}
-		}(i)
-	}
-	for i := 0; i < concurrentGet; i++ {
-		wg.Add(1)
-		go func(i int) {
-			defer wg.Done()
-			r := rand.New(rand.NewSource(time.Now().UnixNano()))
-			for {
-				mark := time.Now()
-				if mark.Before(until) {
-					h := c.Get(0, uint64(r.Intn(maxkey)), nil)
-					latency := int64(time.Now().Sub(mark))
-					m := atomic.LoadInt64(&getMaxLatency)
-					if latency > m {
-						atomic.CompareAndSwapInt64(&getMaxLatency, m, latency)
-					}
-					atomic.AddInt64(&getDuration, latency)
-					if h != nil {
-						atomic.AddInt32(&getHit, 1)
-						h.Release()
-					}
-					atomic.AddInt32(&getAll, 1)
-				} else {
-					break
-				}
-			}
-		}(i)
-	}
-
-	wg.Wait()
-	getAvglatency := time.Duration(getDuration) / time.Duration(getAll)
-	t.Logf("set=%d getHit=%d getAll=%d getMaxLatency=%v getAvgLatency=%v",
-		set, getHit, getAll, time.Duration(getMaxLatency), getAvglatency)
-
-	if getAvglatency > delay/3 {
-		t.Errorf("get avg latency > %v: got=%v", delay/3, getAvglatency)
-	}
-}
-
-func TestLRUCache_HitMiss(t *testing.T) {
-	cases := []struct {
-		key   uint64
-		value string
-	}{
-		{1, "vvvvvvvvv"},
-		{100, "v1"},
-		{0, "v2"},
-		{12346, "v3"},
-		{777, "v4"},
-		{999, "v5"},
-		{7654, "v6"},
-		{2, "v7"},
-		{3, "v8"},
-		{9, "v9"},
-	}
-
-	setfin := 0
-	c := NewCache(NewLRU(1000))
-	for i, x := range cases {
-		set(c, 0, x.key, x.value, len(x.value), func() {
-			setfin++
-		}).Release()
-		for j, y := range cases {
-			h := c.Get(0, y.key, nil)
-			if j <= i {
-				// should hit
-				if h == nil {
-					t.Errorf("case '%d' iteration '%d' is miss", i, j)
-				} else {
-					if x := h.Value().(releaserFunc).value.(string); x != y.value {
-						t.Errorf("case '%d' iteration '%d' has invalid value got '%s', want '%s'", i, j, x, y.value)
-					}
-				}
-			} else {
-				// should miss
-				if h != nil {
-					t.Errorf("case '%d' iteration '%d' is hit , value '%s'", i, j, h.Value().(releaserFunc).value.(string))
-				}
-			}
-			if h != nil {
-				h.Release()
-			}
-		}
-	}
-
-	for i, x := range cases {
-		finalizerOk := false
-		c.Delete(0, x.key, func() {
-			finalizerOk = true
-		})
-
-		if !finalizerOk {
-			t.Errorf("case %d delete finalizer not executed", i)
-		}
-
-		for j, y := range cases {
-			h := c.Get(0, y.key, nil)
-			if j > i {
-				// should hit
-				if h == nil {
-					t.Errorf("case '%d' iteration '%d' is miss", i, j)
-				} else {
-					if x := h.Value().(releaserFunc).value.(string); x != y.value {
-						t.Errorf("case '%d' iteration '%d' has invalid value got '%s', want '%s'", i, j, x, y.value)
-					}
-				}
-			} else {
-				// should miss
-				if h != nil {
-					t.Errorf("case '%d' iteration '%d' is hit, value '%s'", i, j, h.Value().(releaserFunc).value.(string))
-				}
-			}
-			if h != nil {
-				h.Release()
-			}
-		}
-	}
-
-	if setfin != len(cases) {
-		t.Errorf("some set finalizer may not be executed, want=%d got=%d", len(cases), setfin)
-	}
-}
-
-func TestLRUCache_Eviction(t *testing.T) {
-	c := NewCache(NewLRU(12))
-	o1 := set(c, 0, 1, 1, 1, nil)
-	set(c, 0, 2, 2, 1, nil).Release()
-	set(c, 0, 3, 3, 1, nil).Release()
-	set(c, 0, 4, 4, 1, nil).Release()
-	set(c, 0, 5, 5, 1, nil).Release()
-	if h := c.Get(0, 2, nil); h != nil { // 1,3,4,5,2
-		h.Release()
-	}
-	set(c, 0, 9, 9, 10, nil).Release() // 5,2,9
-
-	for _, key := range []uint64{9, 2, 5, 1} {
-		h := c.Get(0, key, nil)
-		if h == nil {
-			t.Errorf("miss for key '%d'", key)
-		} else {
-			if x := h.Value().(int); x != int(key) {
-				t.Errorf("invalid value for key '%d' want '%d', got '%d'", key, key, x)
-			}
-			h.Release()
-		}
-	}
-	o1.Release()
-	for _, key := range []uint64{1, 2, 5} {
-		h := c.Get(0, key, nil)
-		if h == nil {
-			t.Errorf("miss for key '%d'", key)
-		} else {
-			if x := h.Value().(int); x != int(key) {
-				t.Errorf("invalid value for key '%d' want '%d', got '%d'", key, key, x)
-			}
-			h.Release()
-		}
-	}
-	for _, key := range []uint64{3, 4, 9} {
-		h := c.Get(0, key, nil)
-		if h != nil {
-			t.Errorf("hit for key '%d'", key)
-			if x := h.Value().(int); x != int(key) {
-				t.Errorf("invalid value for key '%d' want '%d', got '%d'", key, key, x)
-			}
-			h.Release()
-		}
-	}
-}
-
-func TestLRUCache_Evict(t *testing.T) {
-	c := NewCache(NewLRU(6))
-	set(c, 0, 1, 1, 1, nil).Release()
-	set(c, 0, 2, 2, 1, nil).Release()
-	set(c, 1, 1, 4, 1, nil).Release()
-	set(c, 1, 2, 5, 1, nil).Release()
-	set(c, 2, 1, 6, 1, nil).Release()
-	set(c, 2, 2, 7, 1, nil).Release()
-
-	for ns := 0; ns < 3; ns++ {
-		for key := 1; key < 3; key++ {
-			if h := c.Get(uint64(ns), uint64(key), nil); h != nil {
-				h.Release()
-			} else {
-				t.Errorf("Cache.Get on #%d.%d return nil", ns, key)
-			}
-		}
-	}
-
-	if ok := c.Evict(0, 1); !ok {
-		t.Error("first Cache.Evict on #0.1 return false")
-	}
-	if ok := c.Evict(0, 1); ok {
-		t.Error("second Cache.Evict on #0.1 return true")
-	}
-	if h := c.Get(0, 1, nil); h != nil {
-		t.Errorf("Cache.Get on #0.1 return non-nil: %v", h.Value())
-	}
-
-	c.EvictNS(1)
-	if h := c.Get(1, 1, nil); h != nil {
-		t.Errorf("Cache.Get on #1.1 return non-nil: %v", h.Value())
-	}
-	if h := c.Get(1, 2, nil); h != nil {
-		t.Errorf("Cache.Get on #1.2 return non-nil: %v", h.Value())
-	}
-
-	c.EvictAll()
-	for ns := 0; ns < 3; ns++ {
-		for key := 1; key < 3; key++ {
-			if h := c.Get(uint64(ns), uint64(key), nil); h != nil {
-				t.Errorf("Cache.Get on #%d.%d return non-nil: %v", ns, key, h.Value())
-			}
-		}
-	}
-}
-
-func TestLRUCache_Delete(t *testing.T) {
-	delFuncCalled := 0
-	delFunc := func() {
-		delFuncCalled++
-	}
-
-	c := NewCache(NewLRU(2))
-	set(c, 0, 1, 1, 1, nil).Release()
-	set(c, 0, 2, 2, 1, nil).Release()
-
-	if ok := c.Delete(0, 1, delFunc); !ok {
-		t.Error("Cache.Delete on #1 return false")
-	}
-	if h := c.Get(0, 1, nil); h != nil {
-		t.Errorf("Cache.Get on #1 return non-nil: %v", h.Value())
-	}
-	if ok := c.Delete(0, 1, delFunc); ok {
-		t.Error("Cache.Delete on #1 return true")
-	}
-
-	h2 := c.Get(0, 2, nil)
-	if h2 == nil {
-		t.Error("Cache.Get on #2 return nil")
-	}
-	if ok := c.Delete(0, 2, delFunc); !ok {
-		t.Error("(1) Cache.Delete on #2 return false")
-	}
-	if ok := c.Delete(0, 2, delFunc); !ok {
-		t.Error("(2) Cache.Delete on #2 return false")
-	}
-
-	set(c, 0, 3, 3, 1, nil).Release()
-	set(c, 0, 4, 4, 1, nil).Release()
-	c.Get(0, 2, nil).Release()
-
-	for key := 2; key <= 4; key++ {
-		if h := c.Get(0, uint64(key), nil); h != nil {
-			h.Release()
-		} else {
-			t.Errorf("Cache.Get on #%d return nil", key)
-		}
-	}
-
-	h2.Release()
-	if h := c.Get(0, 2, nil); h != nil {
-		t.Errorf("Cache.Get on #2 return non-nil: %v", h.Value())
-	}
-
-	if delFuncCalled != 4 {
-		t.Errorf("delFunc isn't called 4 times: got=%d", delFuncCalled)
-	}
-}
-
-func TestLRUCache_Close(t *testing.T) {
-	relFuncCalled := 0
-	relFunc := func() {
-		relFuncCalled++
-	}
-	delFuncCalled := 0
-	delFunc := func() {
-		delFuncCalled++
-	}
-
-	c := NewCache(NewLRU(2))
-	set(c, 0, 1, 1, 1, relFunc).Release()
-	set(c, 0, 2, 2, 1, relFunc).Release()
-
-	h3 := set(c, 0, 3, 3, 1, relFunc)
-	if h3 == nil {
-		t.Error("Cache.Get on #3 return nil")
-	}
-	if ok := c.Delete(0, 3, delFunc); !ok {
-		t.Error("Cache.Delete on #3 return false")
-	}
-
-	c.Close()
-
-	if relFuncCalled != 3 {
-		t.Errorf("relFunc isn't called 3 times: got=%d", relFuncCalled)
-	}
-	if delFuncCalled != 1 {
-		t.Errorf("delFunc isn't called 1 times: got=%d", delFuncCalled)
-	}
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/cache/lru.go

@@ -1,195 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package cache
-
-import (
-	"sync"
-	"unsafe"
-)
-
-type lruNode struct {
-	n   *Node
-	h   *Handle
-	ban bool
-
-	next, prev *lruNode
-}
-
-func (n *lruNode) insert(at *lruNode) {
-	x := at.next
-	at.next = n
-	n.prev = at
-	n.next = x
-	x.prev = n
-}
-
-func (n *lruNode) remove() {
-	if n.prev != nil {
-		n.prev.next = n.next
-		n.next.prev = n.prev
-		n.prev = nil
-		n.next = nil
-	} else {
-		panic("BUG: removing removed node")
-	}
-}
-
-type lru struct {
-	mu       sync.Mutex
-	capacity int
-	used     int
-	recent   lruNode
-}
-
-func (r *lru) reset() {
-	r.recent.next = &r.recent
-	r.recent.prev = &r.recent
-	r.used = 0
-}
-
-func (r *lru) Capacity() int {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-	return r.capacity
-}
-
-func (r *lru) SetCapacity(capacity int) {
-	var evicted []*lruNode
-
-	r.mu.Lock()
-	r.capacity = capacity
-	for r.used > r.capacity {
-		rn := r.recent.prev
-		if rn == nil {
-			panic("BUG: invalid LRU used or capacity counter")
-		}
-		rn.remove()
-		rn.n.CacheData = nil
-		r.used -= rn.n.Size()
-		evicted = append(evicted, rn)
-	}
-	r.mu.Unlock()
-
-	for _, rn := range evicted {
-		rn.h.Release()
-	}
-}
-
-func (r *lru) Promote(n *Node) {
-	var evicted []*lruNode
-
-	r.mu.Lock()
-	if n.CacheData == nil {
-		if n.Size() <= r.capacity {
-			rn := &lruNode{n: n, h: n.GetHandle()}
-			rn.insert(&r.recent)
-			n.CacheData = unsafe.Pointer(rn)
-			r.used += n.Size()
-
-			for r.used > r.capacity {
-				rn := r.recent.prev
-				if rn == nil {
-					panic("BUG: invalid LRU used or capacity counter")
-				}
-				rn.remove()
-				rn.n.CacheData = nil
-				r.used -= rn.n.Size()
-				evicted = append(evicted, rn)
-			}
-		}
-	} else {
-		rn := (*lruNode)(n.CacheData)
-		if !rn.ban {
-			rn.remove()
-			rn.insert(&r.recent)
-		}
-	}
-	r.mu.Unlock()
-
-	for _, rn := range evicted {
-		rn.h.Release()
-	}
-}
-
-func (r *lru) Ban(n *Node) {
-	r.mu.Lock()
-	if n.CacheData == nil {
-		n.CacheData = unsafe.Pointer(&lruNode{n: n, ban: true})
-	} else {
-		rn := (*lruNode)(n.CacheData)
-		if !rn.ban {
-			rn.remove()
-			rn.ban = true
-			r.used -= rn.n.Size()
-			r.mu.Unlock()
-
-			rn.h.Release()
-			rn.h = nil
-			return
-		}
-	}
-	r.mu.Unlock()
-}
-
-func (r *lru) Evict(n *Node) {
-	r.mu.Lock()
-	rn := (*lruNode)(n.CacheData)
-	if rn == nil || rn.ban {
-		r.mu.Unlock()
-		return
-	}
-	n.CacheData = nil
-	r.mu.Unlock()
-
-	rn.h.Release()
-}
-
-func (r *lru) EvictNS(ns uint64) {
-	var evicted []*lruNode
-
-	r.mu.Lock()
-	for e := r.recent.prev; e != &r.recent; {
-		rn := e
-		e = e.prev
-		if rn.n.NS() == ns {
-			rn.remove()
-			rn.n.CacheData = nil
-			r.used -= rn.n.Size()
-			evicted = append(evicted, rn)
-		}
-	}
-	r.mu.Unlock()
-
-	for _, rn := range evicted {
-		rn.h.Release()
-	}
-}
-
-func (r *lru) EvictAll() {
-	r.mu.Lock()
-	back := r.recent.prev
-	for rn := back; rn != &r.recent; rn = rn.prev {
-		rn.n.CacheData = nil
-	}
-	r.reset()
-	r.mu.Unlock()
-
-	for rn := back; rn != &r.recent; rn = rn.prev {
-		rn.h.Release()
-	}
-}
-
-func (r *lru) Close() error {
-	return nil
-}
-
-// NewLRU create a new LRU-cache.
-func NewLRU(capacity int) Cacher {
-	r := &lru{capacity: capacity}
-	r.reset()
-	return r
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/comparer.go

@@ -1,75 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import "github.com/syndtr/goleveldb/leveldb/comparer"
-
-type iComparer struct {
-	ucmp comparer.Comparer
-}
-
-func (icmp *iComparer) uName() string {
-	return icmp.ucmp.Name()
-}
-
-func (icmp *iComparer) uCompare(a, b []byte) int {
-	return icmp.ucmp.Compare(a, b)
-}
-
-func (icmp *iComparer) uSeparator(dst, a, b []byte) []byte {
-	return icmp.ucmp.Separator(dst, a, b)
-}
-
-func (icmp *iComparer) uSuccessor(dst, b []byte) []byte {
-	return icmp.ucmp.Successor(dst, b)
-}
-
-func (icmp *iComparer) Name() string {
-	return icmp.uName()
-}
-
-func (icmp *iComparer) Compare(a, b []byte) int {
-	x := icmp.ucmp.Compare(iKey(a).ukey(), iKey(b).ukey())
-	if x == 0 {
-		if m, n := iKey(a).num(), iKey(b).num(); m > n {
-			x = -1
-		} else if m < n {
-			x = 1
-		}
-	}
-	return x
-}
-
-func (icmp *iComparer) Separator(dst, a, b []byte) []byte {
-	ua, ub := iKey(a).ukey(), iKey(b).ukey()
-	dst = icmp.ucmp.Separator(dst, ua, ub)
-	if dst == nil {
-		return nil
-	}
-	if len(dst) < len(ua) && icmp.uCompare(ua, dst) < 0 {
-		dst = append(dst, kMaxNumBytes...)
-	} else {
-		// Did not close possibilities that n maybe longer than len(ub).
-		dst = append(dst, a[len(a)-8:]...)
-	}
-	return dst
-}
-
-func (icmp *iComparer) Successor(dst, b []byte) []byte {
-	ub := iKey(b).ukey()
-	dst = icmp.ucmp.Successor(dst, ub)
-	if dst == nil {
-		return nil
-	}
-	if len(dst) < len(ub) && icmp.uCompare(ub, dst) < 0 {
-		dst = append(dst, kMaxNumBytes...)
-	} else {
-		// Did not close possibilities that n maybe longer than len(ub).
-		dst = append(dst, b[len(b)-8:]...)
-	}
-	return dst
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/comparer/bytes_comparer.go

@@ -1,51 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package comparer
-
-import "bytes"
-
-type bytesComparer struct{}
-
-func (bytesComparer) Compare(a, b []byte) int {
-	return bytes.Compare(a, b)
-}
-
-func (bytesComparer) Name() string {
-	return "leveldb.BytewiseComparator"
-}
-
-func (bytesComparer) Separator(dst, a, b []byte) []byte {
-	i, n := 0, len(a)
-	if n > len(b) {
-		n = len(b)
-	}
-	for ; i < n && a[i] == b[i]; i++ {
-	}
-	if i >= n {
-		// Do not shorten if one string is a prefix of the other
-	} else if c := a[i]; c < 0xff && c+1 < b[i] {
-		dst = append(dst, a[:i+1]...)
-		dst[i]++
-		return dst
-	}
-	return nil
-}
-
-func (bytesComparer) Successor(dst, b []byte) []byte {
-	for i, c := range b {
-		if c != 0xff {
-			dst = append(dst, b[:i+1]...)
-			dst[i]++
-			return dst
-		}
-	}
-	return nil
-}
-
-// DefaultComparer are default implementation of the Comparer interface.
-// It uses the natural ordering, consistent with bytes.Compare.
-var DefaultComparer = bytesComparer{}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/comparer/comparer.go

@@ -1,57 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Package comparer provides interface and implementation for ordering
-// sets of data.
-package comparer
-
-// BasicComparer is the interface that wraps the basic Compare method.
-type BasicComparer interface {
-	// Compare returns -1, 0, or +1 depending on whether a is 'less than',
-	// 'equal to' or 'greater than' b. The two arguments can only be 'equal'
-	// if their contents are exactly equal. Furthermore, the empty slice
-	// must be 'less than' any non-empty slice.
-	Compare(a, b []byte) int
-}
-
-// Comparer defines a total ordering over the space of []byte keys: a 'less
-// than' relationship.
-type Comparer interface {
-	BasicComparer
-
-	// Name returns name of the comparer.
-	//
-	// The Level-DB on-disk format stores the comparer name, and opening a
-	// database with a different comparer from the one it was created with
-	// will result in an error.
-	//
-	// An implementation to a new name whenever the comparer implementation
-	// changes in a way that will cause the relative ordering of any two keys
-	// to change.
-	//
-	// Names starting with "leveldb." are reserved and should not be used
-	// by any users of this package.
-	Name() string
-
-	// Bellow are advanced functions used used to reduce the space requirements
-	// for internal data structures such as index blocks.
-
-	// Separator appends a sequence of bytes x to dst such that a <= x && x < b,
-	// where 'less than' is consistent with Compare. An implementation should
-	// return nil if x equal to a.
-	//
-	// Either contents of a or b should not by any means modified. Doing so
-	// may cause corruption on the internal state.
-	Separator(dst, a, b []byte) []byte
-
-	// Successor appends a sequence of bytes x to dst such that x >= b, where
-	// 'less than' is consistent with Compare. An implementation should return
-	// nil if x equal to b.
-	//
-	// Contents of b should not by any means modified. Doing so may cause
-	// corruption on the internal state.
-	Successor(dst, b []byte) []byte
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/corrupt_test.go

@@ -1,500 +0,0 @@
-// Copyright (c) 2013, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"bytes"
-	"fmt"
-	"github.com/syndtr/goleveldb/leveldb/filter"
-	"github.com/syndtr/goleveldb/leveldb/opt"
-	"github.com/syndtr/goleveldb/leveldb/storage"
-	"io"
-	"math/rand"
-	"testing"
-)
-
-const ctValSize = 1000
-
-type dbCorruptHarness struct {
-	dbHarness
-}
-
-func newDbCorruptHarnessWopt(t *testing.T, o *opt.Options) *dbCorruptHarness {
-	h := new(dbCorruptHarness)
-	h.init(t, o)
-	return h
-}
-
-func newDbCorruptHarness(t *testing.T) *dbCorruptHarness {
-	return newDbCorruptHarnessWopt(t, &opt.Options{
-		BlockCacheCapacity: 100,
-		Strict:             opt.StrictJournalChecksum,
-	})
-}
-
-func (h *dbCorruptHarness) recover() {
-	p := &h.dbHarness
-	t := p.t
-
-	var err error
-	p.db, err = Recover(h.stor, h.o)
-	if err != nil {
-		t.Fatal("Repair: got error: ", err)
-	}
-}
-
-func (h *dbCorruptHarness) build(n int) {
-	p := &h.dbHarness
-	t := p.t
-	db := p.db
-
-	batch := new(Batch)
-	for i := 0; i < n; i++ {
-		batch.Reset()
-		batch.Put(tkey(i), tval(i, ctValSize))
-		err := db.Write(batch, p.wo)
-		if err != nil {
-			t.Fatal("write error: ", err)
-		}
-	}
-}
-
-func (h *dbCorruptHarness) buildShuffled(n int, rnd *rand.Rand) {
-	p := &h.dbHarness
-	t := p.t
-	db := p.db
-
-	batch := new(Batch)
-	for i := range rnd.Perm(n) {
-		batch.Reset()
-		batch.Put(tkey(i), tval(i, ctValSize))
-		err := db.Write(batch, p.wo)
-		if err != nil {
-			t.Fatal("write error: ", err)
-		}
-	}
-}
-
-func (h *dbCorruptHarness) deleteRand(n, max int, rnd *rand.Rand) {
-	p := &h.dbHarness
-	t := p.t
-	db := p.db
-
-	batch := new(Batch)
-	for i := 0; i < n; i++ {
-		batch.Reset()
-		batch.Delete(tkey(rnd.Intn(max)))
-		err := db.Write(batch, p.wo)
-		if err != nil {
-			t.Fatal("write error: ", err)
-		}
-	}
-}
-
-func (h *dbCorruptHarness) corrupt(ft storage.FileType, fi, offset, n int) {
-	p := &h.dbHarness
-	t := p.t
-
-	ff, _ := p.stor.GetFiles(ft)
-	sff := files(ff)
-	sff.sort()
-	if fi < 0 {
-		fi = len(sff) - 1
-	}
-	if fi >= len(sff) {
-		t.Fatalf("no such file with type %q with index %d", ft, fi)
-	}
-
-	file := sff[fi]
-
-	r, err := file.Open()
-	if err != nil {
-		t.Fatal("cannot open file: ", err)
-	}
-	x, err := r.Seek(0, 2)
-	if err != nil {
-		t.Fatal("cannot query file size: ", err)
-	}
-	m := int(x)
-	if _, err := r.Seek(0, 0); err != nil {
-		t.Fatal(err)
-	}
-
-	if offset < 0 {
-		if -offset > m {
-			offset = 0
-		} else {
-			offset = m + offset
-		}
-	}
-	if offset > m {
-		offset = m
-	}
-	if offset+n > m {
-		n = m - offset
-	}
-
-	buf := make([]byte, m)
-	_, err = io.ReadFull(r, buf)
-	if err != nil {
-		t.Fatal("cannot read file: ", err)
-	}
-	r.Close()
-
-	for i := 0; i < n; i++ {
-		buf[offset+i] ^= 0x80
-	}
-
-	err = file.Remove()
-	if err != nil {
-		t.Fatal("cannot remove old file: ", err)
-	}
-	w, err := file.Create()
-	if err != nil {
-		t.Fatal("cannot create new file: ", err)
-	}
-	_, err = w.Write(buf)
-	if err != nil {
-		t.Fatal("cannot write new file: ", err)
-	}
-	w.Close()
-}
-
-func (h *dbCorruptHarness) removeAll(ft storage.FileType) {
-	ff, err := h.stor.GetFiles(ft)
-	if err != nil {
-		h.t.Fatal("get files: ", err)
-	}
-	for _, f := range ff {
-		if err := f.Remove(); err != nil {
-			h.t.Error("remove file: ", err)
-		}
-	}
-}
-
-func (h *dbCorruptHarness) removeOne(ft storage.FileType) {
-	ff, err := h.stor.GetFiles(ft)
-	if err != nil {
-		h.t.Fatal("get files: ", err)
-	}
-	f := ff[rand.Intn(len(ff))]
-	h.t.Logf("removing file @%d", f.Num())
-	if err := f.Remove(); err != nil {
-		h.t.Error("remove file: ", err)
-	}
-}
-
-func (h *dbCorruptHarness) check(min, max int) {
-	p := &h.dbHarness
-	t := p.t
-	db := p.db
-
-	var n, badk, badv, missed, good int
-	iter := db.NewIterator(nil, p.ro)
-	for iter.Next() {
-		k := 0
-		fmt.Sscanf(string(iter.Key()), "%d", &k)
-		if k < n {
-			badk++
-			continue
-		}
-		missed += k - n
-		n = k + 1
-		if !bytes.Equal(iter.Value(), tval(k, ctValSize)) {
-			badv++
-		} else {
-			good++
-		}
-	}
-	err := iter.Error()
-	iter.Release()
-	t.Logf("want=%d..%d got=%d badkeys=%d badvalues=%d missed=%d, err=%v",
-		min, max, good, badk, badv, missed, err)
-	if good < min || good > max {
-		t.Errorf("good entries number not in range")
-	}
-}
-
-func TestCorruptDB_Journal(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.build(100)
-	h.check(100, 100)
-	h.closeDB()
-	h.corrupt(storage.TypeJournal, -1, 19, 1)
-	h.corrupt(storage.TypeJournal, -1, 32*1024+1000, 1)
-
-	h.openDB()
-	h.check(36, 36)
-
-	h.close()
-}
-
-func TestCorruptDB_Table(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.build(100)
-	h.compactMem()
-	h.compactRangeAt(0, "", "")
-	h.compactRangeAt(1, "", "")
-	h.closeDB()
-	h.corrupt(storage.TypeTable, -1, 100, 1)
-
-	h.openDB()
-	h.check(99, 99)
-
-	h.close()
-}
-
-func TestCorruptDB_TableIndex(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.build(10000)
-	h.compactMem()
-	h.closeDB()
-	h.corrupt(storage.TypeTable, -1, -2000, 500)
-
-	h.openDB()
-	h.check(5000, 9999)
-
-	h.close()
-}
-
-func TestCorruptDB_MissingManifest(t *testing.T) {
-	rnd := rand.New(rand.NewSource(0x0badda7a))
-	h := newDbCorruptHarnessWopt(t, &opt.Options{
-		BlockCacheCapacity: 100,
-		Strict:             opt.StrictJournalChecksum,
-		WriteBuffer:        1000 * 60,
-	})
-
-	h.build(1000)
-	h.compactMem()
-	h.buildShuffled(1000, rnd)
-	h.compactMem()
-	h.deleteRand(500, 1000, rnd)
-	h.compactMem()
-	h.buildShuffled(1000, rnd)
-	h.compactMem()
-	h.deleteRand(500, 1000, rnd)
-	h.compactMem()
-	h.buildShuffled(1000, rnd)
-	h.compactMem()
-	h.closeDB()
-
-	h.stor.SetIgnoreOpenErr(storage.TypeManifest)
-	h.removeAll(storage.TypeManifest)
-	h.openAssert(false)
-	h.stor.SetIgnoreOpenErr(0)
-
-	h.recover()
-	h.check(1000, 1000)
-	h.build(1000)
-	h.compactMem()
-	h.compactRange("", "")
-	h.closeDB()
-
-	h.recover()
-	h.check(1000, 1000)
-
-	h.close()
-}
-
-func TestCorruptDB_SequenceNumberRecovery(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.put("foo", "v1")
-	h.put("foo", "v2")
-	h.put("foo", "v3")
-	h.put("foo", "v4")
-	h.put("foo", "v5")
-	h.closeDB()
-
-	h.recover()
-	h.getVal("foo", "v5")
-	h.put("foo", "v6")
-	h.getVal("foo", "v6")
-
-	h.reopenDB()
-	h.getVal("foo", "v6")
-
-	h.close()
-}
-
-func TestCorruptDB_SequenceNumberRecoveryTable(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.put("foo", "v1")
-	h.put("foo", "v2")
-	h.put("foo", "v3")
-	h.compactMem()
-	h.put("foo", "v4")
-	h.put("foo", "v5")
-	h.compactMem()
-	h.closeDB()
-
-	h.recover()
-	h.getVal("foo", "v5")
-	h.put("foo", "v6")
-	h.getVal("foo", "v6")
-
-	h.reopenDB()
-	h.getVal("foo", "v6")
-
-	h.close()
-}
-
-func TestCorruptDB_CorruptedManifest(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.put("foo", "hello")
-	h.compactMem()
-	h.compactRange("", "")
-	h.closeDB()
-	h.corrupt(storage.TypeManifest, -1, 0, 1000)
-	h.openAssert(false)
-
-	h.recover()
-	h.getVal("foo", "hello")
-
-	h.close()
-}
-
-func TestCorruptDB_CompactionInputError(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.build(10)
-	h.compactMem()
-	h.closeDB()
-	h.corrupt(storage.TypeTable, -1, 100, 1)
-
-	h.openDB()
-	h.check(9, 9)
-
-	h.build(10000)
-	h.check(10000, 10000)
-
-	h.close()
-}
-
-func TestCorruptDB_UnrelatedKeys(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.build(10)
-	h.compactMem()
-	h.closeDB()
-	h.corrupt(storage.TypeTable, -1, 100, 1)
-
-	h.openDB()
-	h.put(string(tkey(1000)), string(tval(1000, ctValSize)))
-	h.getVal(string(tkey(1000)), string(tval(1000, ctValSize)))
-	h.compactMem()
-	h.getVal(string(tkey(1000)), string(tval(1000, ctValSize)))
-
-	h.close()
-}
-
-func TestCorruptDB_Level0NewerFileHasOlderSeqnum(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.put("a", "v1")
-	h.put("b", "v1")
-	h.compactMem()
-	h.put("a", "v2")
-	h.put("b", "v2")
-	h.compactMem()
-	h.put("a", "v3")
-	h.put("b", "v3")
-	h.compactMem()
-	h.put("c", "v0")
-	h.put("d", "v0")
-	h.compactMem()
-	h.compactRangeAt(1, "", "")
-	h.closeDB()
-
-	h.recover()
-	h.getVal("a", "v3")
-	h.getVal("b", "v3")
-	h.getVal("c", "v0")
-	h.getVal("d", "v0")
-
-	h.close()
-}
-
-func TestCorruptDB_RecoverInvalidSeq_Issue53(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.put("a", "v1")
-	h.put("b", "v1")
-	h.compactMem()
-	h.put("a", "v2")
-	h.put("b", "v2")
-	h.compactMem()
-	h.put("a", "v3")
-	h.put("b", "v3")
-	h.compactMem()
-	h.put("c", "v0")
-	h.put("d", "v0")
-	h.compactMem()
-	h.compactRangeAt(0, "", "")
-	h.closeDB()
-
-	h.recover()
-	h.getVal("a", "v3")
-	h.getVal("b", "v3")
-	h.getVal("c", "v0")
-	h.getVal("d", "v0")
-
-	h.close()
-}
-
-func TestCorruptDB_MissingTableFiles(t *testing.T) {
-	h := newDbCorruptHarness(t)
-
-	h.put("a", "v1")
-	h.put("b", "v1")
-	h.compactMem()
-	h.put("c", "v2")
-	h.put("d", "v2")
-	h.compactMem()
-	h.put("e", "v3")
-	h.put("f", "v3")
-	h.closeDB()
-
-	h.removeOne(storage.TypeTable)
-	h.openAssert(false)
-
-	h.close()
-}
-
-func TestCorruptDB_RecoverTable(t *testing.T) {
-	h := newDbCorruptHarnessWopt(t, &opt.Options{
-		WriteBuffer:         112 * opt.KiB,
-		CompactionTableSize: 90 * opt.KiB,
-		Filter:              filter.NewBloomFilter(10),
-	})
-
-	h.build(1000)
-	h.compactMem()
-	h.compactRangeAt(0, "", "")
-	h.compactRangeAt(1, "", "")
-	seq := h.db.seq
-	h.closeDB()
-	h.corrupt(storage.TypeTable, 0, 1000, 1)
-	h.corrupt(storage.TypeTable, 3, 10000, 1)
-	// Corrupted filter shouldn't affect recovery.
-	h.corrupt(storage.TypeTable, 3, 113888, 10)
-	h.corrupt(storage.TypeTable, -1, 20000, 1)
-
-	h.recover()
-	if h.db.seq != seq {
-		t.Errorf("invalid seq, want=%d got=%d", seq, h.db.seq)
-	}
-	h.check(985, 985)
-
-	h.close()
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go

@@ -1,945 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"container/list"
-	"fmt"
-	"io"
-	"os"
-	"runtime"
-	"strings"
-	"sync"
-	"sync/atomic"
-	"time"
-
-	"github.com/syndtr/goleveldb/leveldb/errors"
-	"github.com/syndtr/goleveldb/leveldb/iterator"
-	"github.com/syndtr/goleveldb/leveldb/journal"
-	"github.com/syndtr/goleveldb/leveldb/memdb"
-	"github.com/syndtr/goleveldb/leveldb/opt"
-	"github.com/syndtr/goleveldb/leveldb/storage"
-	"github.com/syndtr/goleveldb/leveldb/table"
-	"github.com/syndtr/goleveldb/leveldb/util"
-)
-
-// DB is a LevelDB database.
-type DB struct {
-	// Need 64-bit alignment.
-	seq uint64
-
-	// Session.
-	s *session
-
-	// MemDB.
-	memMu             sync.RWMutex
-	memPool           chan *memdb.DB
-	mem, frozenMem    *memDB
-	journal           *journal.Writer
-	journalWriter     storage.Writer
-	journalFile       storage.File
-	frozenJournalFile storage.File
-	frozenSeq         uint64
-
-	// Snapshot.
-	snapsMu   sync.Mutex
-	snapsList *list.List
-
-	// Stats.
-	aliveSnaps, aliveIters int32
-
-	// Write.
-	writeC       chan *Batch
-	writeMergedC chan bool
-	writeLockC   chan struct{}
-	writeAckC    chan error
-	writeDelay   time.Duration
-	writeDelayN  int
-	journalC     chan *Batch
-	journalAckC  chan error
-
-	// Compaction.
-	tcompCmdC   chan cCmd
-	tcompPauseC chan chan<- struct{}
-	mcompCmdC   chan cCmd
-	compErrC    chan error
-	compPerErrC chan error
-	compErrSetC chan error
-	compStats   []cStats
-
-	// Close.
-	closeW sync.WaitGroup
-	closeC chan struct{}
-	closed uint32
-	closer io.Closer
-}
-
-func openDB(s *session) (*DB, error) {
-	s.log("db@open opening")
-	start := time.Now()
-	db := &DB{
-		s: s,
-		// Initial sequence
-		seq: s.stSeqNum,
-		// MemDB
-		memPool: make(chan *memdb.DB, 1),
-		// Snapshot
-		snapsList: list.New(),
-		// Write
-		writeC:       make(chan *Batch),
-		writeMergedC: make(chan bool),
-		writeLockC:   make(chan struct{}, 1),
-		writeAckC:    make(chan error),
-		journalC:     make(chan *Batch),
-		journalAckC:  make(chan error),
-		// Compaction
-		tcompCmdC:   make(chan cCmd),
-		tcompPauseC: make(chan chan<- struct{}),
-		mcompCmdC:   make(chan cCmd),
-		compErrC:    make(chan error),
-		compPerErrC: make(chan error),
-		compErrSetC: make(chan error),
-		compStats:   make([]cStats, s.o.GetNumLevel()),
-		// Close
-		closeC: make(chan struct{}),
-	}
-
-	if err := db.recoverJournal(); err != nil {
-		return nil, err
-	}
-
-	// Remove any obsolete files.
-	if err := db.checkAndCleanFiles(); err != nil {
-		// Close journal.
-		if db.journal != nil {
-			db.journal.Close()
-			db.journalWriter.Close()
-		}
-		return nil, err
-	}
-
-	// Doesn't need to be included in the wait group.
-	go db.compactionError()
-	go db.mpoolDrain()
-
-	db.closeW.Add(3)
-	go db.tCompaction()
-	go db.mCompaction()
-	go db.jWriter()
-
-	s.logf("db@open done T·%v", time.Since(start))
-
-	runtime.SetFinalizer(db, (*DB).Close)
-	return db, nil
-}
-
-// Open opens or creates a DB for the given storage.
-// The DB will be created if not exist, unless ErrorIfMissing is true.
-// Also, if ErrorIfExist is true and the DB exist Open will returns
-// os.ErrExist error.
-//
-// Open will return an error with type of ErrCorrupted if corruption
-// detected in the DB. Corrupted DB can be recovered with Recover
-// function.
-//
-// The returned DB instance is goroutine-safe.
-// The DB must be closed after use, by calling Close method.
-func Open(stor storage.Storage, o *opt.Options) (db *DB, err error) {
-	s, err := newSession(stor, o)
-	if err != nil {
-		return
-	}
-	defer func() {
-		if err != nil {
-			s.close()
-			s.release()
-		}
-	}()
-
-	err = s.recover()
-	if err != nil {
-		if !os.IsNotExist(err) || s.o.GetErrorIfMissing() {
-			return
-		}
-		err = s.create()
-		if err != nil {
-			return
-		}
-	} else if s.o.GetErrorIfExist() {
-		err = os.ErrExist
-		return
-	}
-
-	return openDB(s)
-}
-
-// OpenFile opens or creates a DB for the given path.
-// The DB will be created if not exist, unless ErrorIfMissing is true.
-// Also, if ErrorIfExist is true and the DB exist OpenFile will returns
-// os.ErrExist error.
-//
-// OpenFile uses standard file-system backed storage implementation as
-// desribed in the leveldb/storage package.
-//
-// OpenFile will return an error with type of ErrCorrupted if corruption
-// detected in the DB. Corrupted DB can be recovered with Recover
-// function.
-//
-// The returned DB instance is goroutine-safe.
-// The DB must be closed after use, by calling Close method.
-func OpenFile(path string, o *opt.Options) (db *DB, err error) {
-	stor, err := storage.OpenFile(path)
-	if err != nil {
-		return
-	}
-	db, err = Open(stor, o)
-	if err != nil {
-		stor.Close()
-	} else {
-		db.closer = stor
-	}
-	return
-}
-
-// Recover recovers and opens a DB with missing or corrupted manifest files
-// for the given storage. It will ignore any manifest files, valid or not.
-// The DB must already exist or it will returns an error.
-// Also, Recover will ignore ErrorIfMissing and ErrorIfExist options.
-//
-// The returned DB instance is goroutine-safe.
-// The DB must be closed after use, by calling Close method.
-func Recover(stor storage.Storage, o *opt.Options) (db *DB, err error) {
-	s, err := newSession(stor, o)
-	if err != nil {
-		return
-	}
-	defer func() {
-		if err != nil {
-			s.close()
-			s.release()
-		}
-	}()
-
-	err = recoverTable(s, o)
-	if err != nil {
-		return
-	}
-	return openDB(s)
-}
-
-// RecoverFile recovers and opens a DB with missing or corrupted manifest files
-// for the given path. It will ignore any manifest files, valid or not.
-// The DB must already exist or it will returns an error.
-// Also, Recover will ignore ErrorIfMissing and ErrorIfExist options.
-//
-// RecoverFile uses standard file-system backed storage implementation as desribed
-// in the leveldb/storage package.
-//
-// The returned DB instance is goroutine-safe.
-// The DB must be closed after use, by calling Close method.
-func RecoverFile(path string, o *opt.Options) (db *DB, err error) {
-	stor, err := storage.OpenFile(path)
-	if err != nil {
-		return
-	}
-	db, err = Recover(stor, o)
-	if err != nil {
-		stor.Close()
-	} else {
-		db.closer = stor
-	}
-	return
-}
-
-func recoverTable(s *session, o *opt.Options) error {
-	o = dupOptions(o)
-	// Mask StrictReader, lets StrictRecovery doing its job.
-	o.Strict &= ^opt.StrictReader
-
-	// Get all tables and sort it by file number.
-	tableFiles_, err := s.getFiles(storage.TypeTable)
-	if err != nil {
-		return err
-	}
-	tableFiles := files(tableFiles_)
-	tableFiles.sort()
-
-	var (
-		maxSeq                                                            uint64
-		recoveredKey, goodKey, corruptedKey, corruptedBlock, droppedTable int
-
-		// We will drop corrupted table.
-		strict = o.GetStrict(opt.StrictRecovery)
-
-		rec   = &sessionRecord{numLevel: o.GetNumLevel()}
-		bpool = util.NewBufferPool(o.GetBlockSize() + 5)
-	)
-	buildTable := func(iter iterator.Iterator) (tmp storage.File, size int64, err error) {
-		tmp = s.newTemp()
-		writer, err := tmp.Create()
-		if err != nil {
-			return
-		}
-		defer func() {
-			writer.Close()
-			if err != nil {
-				tmp.Remove()
-				tmp = nil
-			}
-		}()
-
-		// Copy entries.
-		tw := table.NewWriter(writer, o)
-		for iter.Next() {
-			key := iter.Key()
-			if validIkey(key) {
-				err = tw.Append(key, iter.Value())
-				if err != nil {
-					return
-				}
-			}
-		}
-		err = iter.Error()
-		if err != nil {
-			return
-		}
-		err = tw.Close()
-		if err != nil {
-			return
-		}
-		err = writer.Sync()
-		if err != nil {
-			return
-		}
-		size = int64(tw.BytesLen())
-		return
-	}
-	recoverTable := func(file storage.File) error {
-		s.logf("table@recovery recovering @%d", file.Num())
-		reader, err := file.Open()
-		if err != nil {
-			return err
-		}
-		var closed bool
-		defer func() {
-			if !closed {
-				reader.Close()
-			}
-		}()
-
-		// Get file size.
-		size, err := reader.Seek(0, 2)
-		if err != nil {
-			return err
-		}
-
-		var (
-			tSeq                                     uint64
-			tgoodKey, tcorruptedKey, tcorruptedBlock int
-			imin, imax                               []byte
-		)
-		tr, err := table.NewReader(reader, size, storage.NewFileInfo(file), nil, bpool, o)
-		if err != nil {
-			return err
-		}
-		iter := tr.NewIterator(nil, nil)
-		if itererr, ok := iter.(iterator.ErrorCallbackSetter); ok {
-			itererr.SetErrorCallback(func(err error) {
-				if errors.IsCorrupted(err) {
-					s.logf("table@recovery block corruption @%d %q", file.Num(), err)
-					tcorruptedBlock++
-				}
-			})
-		}
-
-		// Scan the table.
-		for iter.Next() {
-			key := iter.Key()
-			_, seq, _, kerr := parseIkey(key)
-			if kerr != nil {
-				tcorruptedKey++
-				continue
-			}
-			tgoodKey++
-			if seq > tSeq {
-				tSeq = seq
-			}
-			if imin == nil {
-				imin = append([]byte{}, key...)
-			}
-			imax = append(imax[:0], key...)
-		}
-		if err := iter.Error(); err != nil {
-			iter.Release()
-			return err
-		}
-		iter.Release()
-
-		goodKey += tgoodKey
-		corruptedKey += tcorruptedKey
-		corruptedBlock += tcorruptedBlock
-
-		if strict && (tcorruptedKey > 0 || tcorruptedBlock > 0) {
-			droppedTable++
-			s.logf("table@recovery dropped @%d Gk·%d Ck·%d Cb·%d S·%d Q·%d", file.Num(), tgoodKey, tcorruptedKey, tcorruptedBlock, size, tSeq)
-			return nil
-		}
-
-		if tgoodKey > 0 {
-			if tcorruptedKey > 0 || tcorruptedBlock > 0 {
-				// Rebuild the table.
-				s.logf("table@recovery rebuilding @%d", file.Num())
-				iter := tr.NewIterator(nil, nil)
-				tmp, newSize, err := buildTable(iter)
-				iter.Release()
-				if err != nil {
-					return err
-				}
-				closed = true
-				reader.Close()
-				if err := file.Replace(tmp); err != nil {
-					return err
-				}
-				size = newSize
-			}
-			if tSeq > maxSeq {
-				maxSeq = tSeq
-			}
-			recoveredKey += tgoodKey
-			// Add table to level 0.
-			rec.addTable(0, file.Num(), uint64(size), imin, imax)
-			s.logf("table@recovery recovered @%d Gk·%d Ck·%d Cb·%d S·%d Q·%d", file.Num(), tgoodKey, tcorruptedKey, tcorruptedBlock, size, tSeq)
-		} else {
-			droppedTable++
-			s.logf("table@recovery unrecoverable @%d Ck·%d Cb·%d S·%d", file.Num(), tcorruptedKey, tcorruptedBlock, size)
-		}
-
-		return nil
-	}
-
-	// Recover all tables.
-	if len(tableFiles) > 0 {
-		s.logf("table@recovery F·%d", len(tableFiles))
-
-		// Mark file number as used.
-		s.markFileNum(tableFiles[len(tableFiles)-1].Num())
-
-		for _, file := range tableFiles {
-			if err := recoverTable(file); err != nil {
-				return err
-			}
-		}
-
-		s.logf("table@recovery recovered F·%d N·%d Gk·%d Ck·%d Q·%d", len(tableFiles), recoveredKey, goodKey, corruptedKey, maxSeq)
-	}
-
-	// Set sequence number.
-	rec.setSeqNum(maxSeq)
-
-	// Create new manifest.
-	if err := s.create(); err != nil {
-		return err
-	}
-
-	// Commit.
-	return s.commit(rec)
-}
-
-func (db *DB) recoverJournal() error {
-	// Get all tables and sort it by file number.
-	journalFiles_, err := db.s.getFiles(storage.TypeJournal)
-	if err != nil {
-		return err
-	}
-	journalFiles := files(journalFiles_)
-	journalFiles.sort()
-
-	// Discard older journal.
-	prev := -1
-	for i, file := range journalFiles {
-		if file.Num() >= db.s.stJournalNum {
-			if prev >= 0 {
-				i--
-				journalFiles[i] = journalFiles[prev]
-			}
-			journalFiles = journalFiles[i:]
-			break
-		} else if file.Num() == db.s.stPrevJournalNum {
-			prev = i
-		}
-	}
-
-	var jr *journal.Reader
-	var of storage.File
-	var mem *memdb.DB
-	batch := new(Batch)
-	cm := newCMem(db.s)
-	buf := new(util.Buffer)
-	// Options.
-	strict := db.s.o.GetStrict(opt.StrictJournal)
-	checksum := db.s.o.GetStrict(opt.StrictJournalChecksum)
-	writeBuffer := db.s.o.GetWriteBuffer()
-	recoverJournal := func(file storage.File) error {
-		db.logf("journal@recovery recovering @%d", file.Num())
-		reader, err := file.Open()
-		if err != nil {
-			return err
-		}
-		defer reader.Close()
-
-		// Create/reset journal reader instance.
-		if jr == nil {
-			jr = journal.NewReader(reader, dropper{db.s, file}, strict, checksum)
-		} else {
-			jr.Reset(reader, dropper{db.s, file}, strict, checksum)
-		}
-
-		// Flush memdb and remove obsolete journal file.
-		if of != nil {
-			if mem.Len() > 0 {
-				if err := cm.flush(mem, 0); err != nil {
-					return err
-				}
-			}
-			if err := cm.commit(file.Num(), db.seq); err != nil {
-				return err
-			}
-			cm.reset()
-			of.Remove()
-			of = nil
-		}
-
-		// Replay journal to memdb.
-		mem.Reset()
-		for {
-			r, err := jr.Next()
-			if err != nil {
-				if err == io.EOF {
-					break
-				}
-				return errors.SetFile(err, file)
-			}
-
-			buf.Reset()
-			if _, err := buf.ReadFrom(r); err != nil {
-				if err == io.ErrUnexpectedEOF {
-					// This is error returned due to corruption, with strict == false.
-					continue
-				} else {
-					return errors.SetFile(err, file)
-				}
-			}
-			if err := batch.memDecodeAndReplay(db.seq, buf.Bytes(), mem); err != nil {
-				if strict || !errors.IsCorrupted(err) {
-					return errors.SetFile(err, file)
-				} else {
-					db.s.logf("journal error: %v (skipped)", err)
-					// We won't apply sequence number as it might be corrupted.
-					continue
-				}
-			}
-
-			// Save sequence number.
-			db.seq = batch.seq + uint64(batch.Len())
-
-			// Flush it if large enough.
-			if mem.Size() >= writeBuffer {
-				if err := cm.flush(mem, 0); err != nil {
-					return err
-				}
-				mem.Reset()
-			}
-		}
-
-		of = file
-		return nil
-	}
-
-	// Recover all journals.
-	if len(journalFiles) > 0 {
-		db.logf("journal@recovery F·%d", len(journalFiles))
-
-		// Mark file number as used.
-		db.s.markFileNum(journalFiles[len(journalFiles)-1].Num())
-
-		mem = memdb.New(db.s.icmp, writeBuffer)
-		for _, file := range journalFiles {
-			if err := recoverJournal(file); err != nil {
-				return err
-			}
-		}
-
-		// Flush the last journal.
-		if mem.Len() > 0 {
-			if err := cm.flush(mem, 0); err != nil {
-				return err
-			}
-		}
-	}
-
-	// Create a new journal.
-	if _, err := db.newMem(0); err != nil {
-		return err
-	}
-
-	// Commit.
-	if err := cm.commit(db.journalFile.Num(), db.seq); err != nil {
-		// Close journal.
-		if db.journal != nil {
-			db.journal.Close()
-			db.journalWriter.Close()
-		}
-		return err
-	}
-
-	// Remove the last obsolete journal file.
-	if of != nil {
-		of.Remove()
-	}
-
-	return nil
-}
-
-func (db *DB) get(key []byte, seq uint64, ro *opt.ReadOptions) (value []byte, err error) {
-	ikey := newIkey(key, seq, ktSeek)
-
-	em, fm := db.getMems()
-	for _, m := range [...]*memDB{em, fm} {
-		if m == nil {
-			continue
-		}
-		defer m.decref()
-
-		mk, mv, me := m.mdb.Find(ikey)
-		if me == nil {
-			ukey, _, kt, kerr := parseIkey(mk)
-			if kerr != nil {
-				// Shouldn't have had happen.
-				panic(kerr)
-			}
-			if db.s.icmp.uCompare(ukey, key) == 0 {
-				if kt == ktDel {
-					return nil, ErrNotFound
-				}
-				return append([]byte{}, mv...), nil
-			}
-		} else if me != ErrNotFound {
-			return nil, me
-		}
-	}
-
-	v := db.s.version()
-	value, cSched, err := v.get(ikey, ro, false)
-	v.release()
-	if cSched {
-		// Trigger table compaction.
-		db.compSendTrigger(db.tcompCmdC)
-	}
-	return
-}
-
-func (db *DB) has(key []byte, seq uint64, ro *opt.ReadOptions) (ret bool, err error) {
-	ikey := newIkey(key, seq, ktSeek)
-
-	em, fm := db.getMems()
-	for _, m := range [...]*memDB{em, fm} {
-		if m == nil {
-			continue
-		}
-		defer m.decref()
-
-		mk, _, me := m.mdb.Find(ikey)
-		if me == nil {
-			ukey, _, kt, kerr := parseIkey(mk)
-			if kerr != nil {
-				// Shouldn't have had happen.
-				panic(kerr)
-			}
-			if db.s.icmp.uCompare(ukey, key) == 0 {
-				if kt == ktDel {
-					return false, nil
-				}
-				return true, nil
-			}
-		} else if me != ErrNotFound {
-			return false, me
-		}
-	}
-
-	v := db.s.version()
-	_, cSched, err := v.get(ikey, ro, true)
-	v.release()
-	if cSched {
-		// Trigger table compaction.
-		db.compSendTrigger(db.tcompCmdC)
-	}
-	if err == nil {
-		ret = true
-	} else if err == ErrNotFound {
-		err = nil
-	}
-	return
-}
-
-// Get gets the value for the given key. It returns ErrNotFound if the
-// DB does not contains the key.
-//
-// The returned slice is its own copy, it is safe to modify the contents
-// of the returned slice.
-// It is safe to modify the contents of the argument after Get returns.
-func (db *DB) Get(key []byte, ro *opt.ReadOptions) (value []byte, err error) {
-	err = db.ok()
-	if err != nil {
-		return
-	}
-
-	se := db.acquireSnapshot()
-	defer db.releaseSnapshot(se)
-	return db.get(key, se.seq, ro)
-}
-
-// Has returns true if the DB does contains the given key.
-//
-// It is safe to modify the contents of the argument after Get returns.
-func (db *DB) Has(key []byte, ro *opt.ReadOptions) (ret bool, err error) {
-	err = db.ok()
-	if err != nil {
-		return
-	}
-
-	se := db.acquireSnapshot()
-	defer db.releaseSnapshot(se)
-	return db.has(key, se.seq, ro)
-}
-
-// NewIterator returns an iterator for the latest snapshot of the
-// uderlying DB.
-// The returned iterator is not goroutine-safe, but it is safe to use
-// multiple iterators concurrently, with each in a dedicated goroutine.
-// It is also safe to use an iterator concurrently with modifying its
-// underlying DB. The resultant key/value pairs are guaranteed to be
-// consistent.
-//
-// Slice allows slicing the iterator to only contains keys in the given
-// range. A nil Range.Start is treated as a key before all keys in the
-// DB. And a nil Range.Limit is treated as a key after all keys in
-// the DB.
-//
-// The iterator must be released after use, by calling Release method.
-//
-// Also read Iterator documentation of the leveldb/iterator package.
-func (db *DB) NewIterator(slice *util.Range, ro *opt.ReadOptions) iterator.Iterator {
-	if err := db.ok(); err != nil {
-		return iterator.NewEmptyIterator(err)
-	}
-
-	se := db.acquireSnapshot()
-	defer db.releaseSnapshot(se)
-	// Iterator holds 'version' lock, 'version' is immutable so snapshot
-	// can be released after iterator created.
-	return db.newIterator(se.seq, slice, ro)
-}
-
-// GetSnapshot returns a latest snapshot of the underlying DB. A snapshot
-// is a frozen snapshot of a DB state at a particular point in time. The
-// content of snapshot are guaranteed to be consistent.
-//
-// The snapshot must be released after use, by calling Release method.
-func (db *DB) GetSnapshot() (*Snapshot, error) {
-	if err := db.ok(); err != nil {
-		return nil, err
-	}
-
-	return db.newSnapshot(), nil
-}
-
-// GetProperty returns value of the given property name.
-//
-// Property names:
-//	leveldb.num-files-at-level{n}
-//		Returns the number of files at level 'n'.
-//	leveldb.stats
-//		Returns statistics of the underlying DB.
-//	leveldb.sstables
-//		Returns sstables list for each level.
-//	leveldb.blockpool
-//		Returns block pool stats.
-//	leveldb.cachedblock
-//		Returns size of cached block.
-//	leveldb.openedtables
-//		Returns number of opened tables.
-//	leveldb.alivesnaps
-//		Returns number of alive snapshots.
-//	leveldb.aliveiters
-//		Returns number of alive iterators.
-func (db *DB) GetProperty(name string) (value string, err error) {
-	err = db.ok()
-	if err != nil {
-		return
-	}
-
-	const prefix = "leveldb."
-	if !strings.HasPrefix(name, prefix) {
-		return "", errors.New("leveldb: GetProperty: unknown property: " + name)
-	}
-	p := name[len(prefix):]
-
-	v := db.s.version()
-	defer v.release()
-
-	numFilesPrefix := "num-files-at-level"
-	switch {
-	case strings.HasPrefix(p, numFilesPrefix):
-		var level uint
-		var rest string
-		n, _ := fmt.Sscanf(p[len(numFilesPrefix):], "%d%s", &level, &rest)
-		if n != 1 || int(level) >= db.s.o.GetNumLevel() {
-			err = errors.New("leveldb: GetProperty: invalid property: " + name)
-		} else {
-			value = fmt.Sprint(v.tLen(int(level)))
-		}
-	case p == "stats":
-		value = "Compactions\n" +
-			" Level |   Tables   |    Size(MB)   |    Time(sec)  |    Read(MB)   |   Write(MB)\n" +
-			"-------+------------+---------------+---------------+---------------+---------------\n"
-		for level, tables := range v.tables {
-			duration, read, write := db.compStats[level].get()
-			if len(tables) == 0 && duration == 0 {
-				continue
-			}
-			value += fmt.Sprintf(" %3d   | %10d | %13.5f | %13.5f | %13.5f | %13.5f\n",
-				level, len(tables), float64(tables.size())/1048576.0, duration.Seconds(),
-				float64(read)/1048576.0, float64(write)/1048576.0)
-		}
-	case p == "sstables":
-		for level, tables := range v.tables {
-			value += fmt.Sprintf("--- level %d ---\n", level)
-			for _, t := range tables {
-				value += fmt.Sprintf("%d:%d[%q .. %q]\n", t.file.Num(), t.size, t.imin, t.imax)
-			}
-		}
-	case p == "blockpool":
-		value = fmt.Sprintf("%v", db.s.tops.bpool)
-	case p == "cachedblock":
-		if db.s.tops.bcache != nil {
-			value = fmt.Sprintf("%d", db.s.tops.bcache.Size())
-		} else {
-			value = "<nil>"
-		}
-	case p == "openedtables":
-		value = fmt.Sprintf("%d", db.s.tops.cache.Size())
-	case p == "alivesnaps":
-		value = fmt.Sprintf("%d", atomic.LoadInt32(&db.aliveSnaps))
-	case p == "aliveiters":
-		value = fmt.Sprintf("%d", atomic.LoadInt32(&db.aliveIters))
-	default:
-		err = errors.New("leveldb: GetProperty: unknown property: " + name)
-	}
-
-	return
-}
-
-// SizeOf calculates approximate sizes of the given key ranges.
-// The length of the returned sizes are equal with the length of the given
-// ranges. The returned sizes measure storage space usage, so if the user
-// data compresses by a factor of ten, the returned sizes will be one-tenth
-// the size of the corresponding user data size.
-// The results may not include the sizes of recently written data.
-func (db *DB) SizeOf(ranges []util.Range) (Sizes, error) {
-	if err := db.ok(); err != nil {
-		return nil, err
-	}
-
-	v := db.s.version()
-	defer v.release()
-
-	sizes := make(Sizes, 0, len(ranges))
-	for _, r := range ranges {
-		imin := newIkey(r.Start, kMaxSeq, ktSeek)
-		imax := newIkey(r.Limit, kMaxSeq, ktSeek)
-		start, err := v.offsetOf(imin)
-		if err != nil {
-			return nil, err
-		}
-		limit, err := v.offsetOf(imax)
-		if err != nil {
-			return nil, err
-		}
-		var size uint64
-		if limit >= start {
-			size = limit - start
-		}
-		sizes = append(sizes, size)
-	}
-
-	return sizes, nil
-}
-
-// Close closes the DB. This will also releases any outstanding snapshot and
-// abort any in-flight compaction.
-//
-// It is not safe to close a DB until all outstanding iterators are released.
-// It is valid to call Close multiple times. Other methods should not be
-// called after the DB has been closed.
-func (db *DB) Close() error {
-	if !db.setClosed() {
-		return ErrClosed
-	}
-
-	start := time.Now()
-	db.log("db@close closing")
-
-	// Clear the finalizer.
-	runtime.SetFinalizer(db, nil)
-
-	// Get compaction error.
-	var err error
-	select {
-	case err = <-db.compErrC:
-	default:
-	}
-
-	// Signal all goroutines.
-	close(db.closeC)
-
-	// Wait for all gorotines to exit.
-	db.closeW.Wait()
-
-	// Lock writer and closes journal.
-	db.writeLockC <- struct{}{}
-	if db.journal != nil {
-		db.journal.Close()
-		db.journalWriter.Close()
-	}
-
-	if db.writeDelayN > 0 {
-		db.logf("db@write was delayed N·%d T·%v", db.writeDelayN, db.writeDelay)
-	}
-
-	// Close session.
-	db.s.close()
-	db.logf("db@close done T·%v", time.Since(start))
-	db.s.release()
-
-	if db.closer != nil {
-		if err1 := db.closer.Close(); err == nil {
-			err = err1
-		}
-	}
-
-	// NIL'ing pointers.
-	db.s = nil
-	db.mem = nil
-	db.frozenMem = nil
-	db.journal = nil
-	db.journalWriter = nil
-	db.journalFile = nil
-	db.frozenJournalFile = nil
-	db.closer = nil
-
-	return err
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go

@@ -1,835 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"sync"
-	"time"
-
-	"github.com/syndtr/goleveldb/leveldb/errors"
-	"github.com/syndtr/goleveldb/leveldb/memdb"
-	"github.com/syndtr/goleveldb/leveldb/opt"
-)
-
-var (
-	errCompactionTransactExiting = errors.New("leveldb: compaction transact exiting")
-)
-
-type cStats struct {
-	sync.Mutex
-	duration time.Duration
-	read     uint64
-	write    uint64
-}
-
-func (p *cStats) add(n *cStatsStaging) {
-	p.Lock()
-	p.duration += n.duration
-	p.read += n.read
-	p.write += n.write
-	p.Unlock()
-}
-
-func (p *cStats) get() (duration time.Duration, read, write uint64) {
-	p.Lock()
-	defer p.Unlock()
-	return p.duration, p.read, p.write
-}
-
-type cStatsStaging struct {
-	start    time.Time
-	duration time.Duration
-	on       bool
-	read     uint64
-	write    uint64
-}
-
-func (p *cStatsStaging) startTimer() {
-	if !p.on {
-		p.start = time.Now()
-		p.on = true
-	}
-}
-
-func (p *cStatsStaging) stopTimer() {
-	if p.on {
-		p.duration += time.Since(p.start)
-		p.on = false
-	}
-}
-
-type cMem struct {
-	s     *session
-	level int
-	rec   *sessionRecord
-}
-
-func newCMem(s *session) *cMem {
-	return &cMem{s: s, rec: &sessionRecord{numLevel: s.o.GetNumLevel()}}
-}
-
-func (c *cMem) flush(mem *memdb.DB, level int) error {
-	s := c.s
-
-	// Write memdb to table.
-	iter := mem.NewIterator(nil)
-	defer iter.Release()
-	t, n, err := s.tops.createFrom(iter)
-	if err != nil {
-		return err
-	}
-
-	// Pick level.
-	if level < 0 {
-		v := s.version()
-		level = v.pickLevel(t.imin.ukey(), t.imax.ukey())
-		v.release()
-	}
-	c.rec.addTableFile(level, t)
-
-	s.logf("mem@flush created L%d@%d N·%d S·%s %q:%q", level, t.file.Num(), n, shortenb(int(t.size)), t.imin, t.imax)
-
-	c.level = level
-	return nil
-}
-
-func (c *cMem) reset() {
-	c.rec = &sessionRecord{numLevel: c.s.o.GetNumLevel()}
-}
-
-func (c *cMem) commit(journal, seq uint64) error {
-	c.rec.setJournalNum(journal)
-	c.rec.setSeqNum(seq)
-
-	// Commit changes.
-	return c.s.commit(c.rec)
-}
-
-func (db *DB) compactionError() {
-	var (
-		err     error
-		wlocked bool
-	)
-noerr:
-	// No error.
-	for {
-		select {
-		case err = <-db.compErrSetC:
-			switch {
-			case err == nil:
-			case errors.IsCorrupted(err):
-				goto hasperr
-			default:
-				goto haserr
-			}
-		case _, _ = <-db.closeC:
-			return
-		}
-	}
-haserr:
-	// Transient error.
-	for {
-		select {
-		case db.compErrC <- err:
-		case err = <-db.compErrSetC:
-			switch {
-			case err == nil:
-				goto noerr
-			case errors.IsCorrupted(err):
-				goto hasperr
-			default:
-			}
-		case _, _ = <-db.closeC:
-			return
-		}
-	}
-hasperr:
-	// Persistent error.
-	for {
-		select {
-		case db.compErrC <- err:
-		case db.compPerErrC <- err:
-		case db.writeLockC <- struct{}{}:
-			// Hold write lock, so that write won't pass-through.
-			wlocked = true
-		case _, _ = <-db.closeC:
-			if wlocked {
-				// We should release the lock or Close will hang.
-				<-db.writeLockC
-			}
-			return
-		}
-	}
-}
-
-type compactionTransactCounter int
-
-func (cnt *compactionTransactCounter) incr() {
-	*cnt++
-}
-
-type compactionTransactInterface interface {
-	run(cnt *compactionTransactCounter) error
-	revert() error
-}
-
-func (db *DB) compactionTransact(name string, t compactionTransactInterface) {
-	defer func() {
-		if x := recover(); x != nil {
-			if x == errCompactionTransactExiting {
-				if err := t.revert(); err != nil {
-					db.logf("%s revert error %q", name, err)
-				}
-			}
-			panic(x)
-		}
-	}()
-
-	const (
-		backoffMin = 1 * time.Second
-		backoffMax = 8 * time.Second
-		backoffMul = 2 * time.Second
-	)
-	var (
-		backoff  = backoffMin
-		backoffT = time.NewTimer(backoff)
-		lastCnt  = compactionTransactCounter(0)
-
-		disableBackoff = db.s.o.GetDisableCompactionBackoff()
-	)
-	for n := 0; ; n++ {
-		// Check wether the DB is closed.
-		if db.isClosed() {
-			db.logf("%s exiting", name)
-			db.compactionExitTransact()
-		} else if n > 0 {
-			db.logf("%s retrying N·%d", name, n)
-		}
-
-		// Execute.
-		cnt := compactionTransactCounter(0)
-		err := t.run(&cnt)
-		if err != nil {
-			db.logf("%s error I·%d %q", name, cnt, err)
-		}
-
-		// Set compaction error status.
-		select {
-		case db.compErrSetC <- err:
-		case perr := <-db.compPerErrC:
-			if err != nil {
-				db.logf("%s exiting (persistent error %q)", name, perr)
-				db.compactionExitTransact()
-			}
-		case _, _ = <-db.closeC:
-			db.logf("%s exiting", name)
-			db.compactionExitTransact()
-		}
-		if err == nil {
-			return
-		}
-		if errors.IsCorrupted(err) {
-			db.logf("%s exiting (corruption detected)", name)
-			db.compactionExitTransact()
-		}
-
-		if !disableBackoff {
-			// Reset backoff duration if counter is advancing.
-			if cnt > lastCnt {
-				backoff = backoffMin
-				lastCnt = cnt
-			}
-
-			// Backoff.
-			backoffT.Reset(backoff)
-			if backoff < backoffMax {
-				backoff *= backoffMul
-				if backoff > backoffMax {
-					backoff = backoffMax
-				}
-			}
-			select {
-			case <-backoffT.C:
-			case _, _ = <-db.closeC:
-				db.logf("%s exiting", name)
-				db.compactionExitTransact()
-			}
-		}
-	}
-}
-
-type compactionTransactFunc struct {
-	runFunc    func(cnt *compactionTransactCounter) error
-	revertFunc func() error
-}
-
-func (t *compactionTransactFunc) run(cnt *compactionTransactCounter) error {
-	return t.runFunc(cnt)
-}
-
-func (t *compactionTransactFunc) revert() error {
-	if t.revertFunc != nil {
-		return t.revertFunc()
-	}
-	return nil
-}
-
-func (db *DB) compactionTransactFunc(name string, run func(cnt *compactionTransactCounter) error, revert func() error) {
-	db.compactionTransact(name, &compactionTransactFunc{run, revert})
-}
-
-func (db *DB) compactionExitTransact() {
-	panic(errCompactionTransactExiting)
-}
-
-func (db *DB) memCompaction() {
-	mem := db.getFrozenMem()
-	if mem == nil {
-		return
-	}
-	defer mem.decref()
-
-	c := newCMem(db.s)
-	stats := new(cStatsStaging)
-
-	db.logf("mem@flush N·%d S·%s", mem.mdb.Len(), shortenb(mem.mdb.Size()))
-
-	// Don't compact empty memdb.
-	if mem.mdb.Len() == 0 {
-		db.logf("mem@flush skipping")
-		// drop frozen mem
-		db.dropFrozenMem()
-		return
-	}
-
-	// Pause table compaction.
-	resumeC := make(chan struct{})
-	select {
-	case db.tcompPauseC <- (chan<- struct{})(resumeC):
-	case <-db.compPerErrC:
-		close(resumeC)
-		resumeC = nil
-	case _, _ = <-db.closeC:
-		return
-	}
-
-	db.compactionTransactFunc("mem@flush", func(cnt *compactionTransactCounter) (err error) {
-		stats.startTimer()
-		defer stats.stopTimer()
-		return c.flush(mem.mdb, -1)
-	}, func() error {
-		for _, r := range c.rec.addedTables {
-			db.logf("mem@flush revert @%d", r.num)
-			f := db.s.getTableFile(r.num)
-			if err := f.Remove(); err != nil {
-				return err
-			}
-		}
-		return nil
-	})
-
-	db.compactionTransactFunc("mem@commit", func(cnt *compactionTransactCounter) (err error) {
-		stats.startTimer()
-		defer stats.stopTimer()
-		return c.commit(db.journalFile.Num(), db.frozenSeq)
-	}, nil)
-
-	db.logf("mem@flush committed F·%d T·%v", len(c.rec.addedTables), stats.duration)
-
-	for _, r := range c.rec.addedTables {
-		stats.write += r.size
-	}
-	db.compStats[c.level].add(stats)
-
-	// Drop frozen mem.
-	db.dropFrozenMem()
-
-	// Resume table compaction.
-	if resumeC != nil {
-		select {
-		case <-resumeC:
-			close(resumeC)
-		case _, _ = <-db.closeC:
-			return
-		}
-	}
-
-	// Trigger table compaction.
-	db.compSendTrigger(db.tcompCmdC)
-}
-
-type tableCompactionBuilder struct {
-	db           *DB
-	s            *session
-	c            *compaction
-	rec          *sessionRecord
-	stat0, stat1 *cStatsStaging
-
-	snapHasLastUkey bool
-	snapLastUkey    []byte
-	snapLastSeq     uint64
-	snapIter        int
-	snapKerrCnt     int
-	snapDropCnt     int
-
-	kerrCnt int
-	dropCnt int
-
-	minSeq    uint64
-	strict    bool
-	tableSize int
-
-	tw *tWriter
-}
-
-func (b *tableCompactionBuilder) appendKV(key, value []byte) error {
-	// Create new table if not already.
-	if b.tw == nil {
-		// Check for pause event.
-		if b.db != nil {
-			select {
-			case ch := <-b.db.tcompPauseC:
-				b.db.pauseCompaction(ch)
-			case _, _ = <-b.db.closeC:
-				b.db.compactionExitTransact()
-			default:
-			}
-		}
-
-		// Create new table.
-		var err error
-		b.tw, err = b.s.tops.create()
-		if err != nil {
-			return err
-		}
-	}
-
-	// Write key/value into table.
-	return b.tw.append(key, value)
-}
-
-func (b *tableCompactionBuilder) needFlush() bool {
-	return b.tw.tw.BytesLen() >= b.tableSize
-}
-
-func (b *tableCompactionBuilder) flush() error {
-	t, err := b.tw.finish()
-	if err != nil {
-		return err
-	}
-	b.rec.addTableFile(b.c.level+1, t)
-	b.stat1.write += t.size
-	b.s.logf("table@build created L%d@%d N·%d S·%s %q:%q", b.c.level+1, t.file.Num(), b.tw.tw.EntriesLen(), shortenb(int(t.size)), t.imin, t.imax)
-	b.tw = nil
-	return nil
-}
-
-func (b *tableCompactionBuilder) cleanup() {
-	if b.tw != nil {
-		b.tw.drop()
-		b.tw = nil
-	}
-}
-
-func (b *tableCompactionBuilder) run(cnt *compactionTransactCounter) error {
-	snapResumed := b.snapIter > 0
-	hasLastUkey := b.snapHasLastUkey // The key might has zero length, so this is necessary.
-	lastUkey := append([]byte{}, b.snapLastUkey...)
-	lastSeq := b.snapLastSeq
-	b.kerrCnt = b.snapKerrCnt
-	b.dropCnt = b.snapDropCnt
-	// Restore compaction state.
-	b.c.restore()
-
-	defer b.cleanup()
-
-	b.stat1.startTimer()
-	defer b.stat1.stopTimer()
-
-	iter := b.c.newIterator()
-	defer iter.Release()
-	for i := 0; iter.Next(); i++ {
-		// Incr transact counter.
-		cnt.incr()
-
-		// Skip until last state.
-		if i < b.snapIter {
-			continue
-		}
-
-		resumed := false
-		if snapResumed {
-			resumed = true
-			snapResumed = false
-		}
-
-		ikey := iter.Key()
-		ukey, seq, kt, kerr := parseIkey(ikey)
-
-		if kerr == nil {
-			shouldStop := !resumed && b.c.shouldStopBefore(ikey)
-
-			if !hasLastUkey || b.s.icmp.uCompare(lastUkey, ukey) != 0 {
-				// First occurrence of this user key.
-
-				// Only rotate tables if ukey doesn't hop across.
-				if b.tw != nil && (shouldStop || b.needFlush()) {
-					if err := b.flush(); err != nil {
-						return err
-					}
-
-					// Creates snapshot of the state.
-					b.c.save()
-					b.snapHasLastUkey = hasLastUkey
-					b.snapLastUkey = append(b.snapLastUkey[:0], lastUkey...)
-					b.snapLastSeq = lastSeq
-					b.snapIter = i
-					b.snapKerrCnt = b.kerrCnt
-					b.snapDropCnt = b.dropCnt
-				}
-
-				hasLastUkey = true
-				lastUkey = append(lastUkey[:0], ukey...)
-				lastSeq = kMaxSeq
-			}
-
-			switch {
-			case lastSeq <= b.minSeq:
-				// Dropped because newer entry for same user key exist
-				fallthrough // (A)
-			case kt == ktDel && seq <= b.minSeq && b.c.baseLevelForKey(lastUkey):
-				// For this user key:
-				// (1) there is no data in higher levels
-				// (2) data in lower levels will have larger seq numbers
-				// (3) data in layers that are being compacted here and have
-				//     smaller seq numbers will be dropped in the next
-				//     few iterations of this loop (by rule (A) above).
-				// Therefore this deletion marker is obsolete and can be dropped.
-				lastSeq = seq
-				b.dropCnt++
-				continue
-			default:
-				lastSeq = seq
-			}
-		} else {
-			if b.strict {
-				return kerr
-			}
-
-			// Don't drop corrupted keys.
-			hasLastUkey = false
-			lastUkey = lastUkey[:0]
-			lastSeq = kMaxSeq
-			b.kerrCnt++
-		}
-
-		if err := b.appendKV(ikey, iter.Value()); err != nil {
-			return err
-		}
-	}
-
-	if err := iter.Error(); err != nil {
-		return err
-	}
-
-	// Finish last table.
-	if b.tw != nil && !b.tw.empty() {
-		return b.flush()
-	}
-	return nil
-}
-
-func (b *tableCompactionBuilder) revert() error {
-	for _, at := range b.rec.addedTables {
-		b.s.logf("table@build revert @%d", at.num)
-		f := b.s.getTableFile(at.num)
-		if err := f.Remove(); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (db *DB) tableCompaction(c *compaction, noTrivial bool) {
-	defer c.release()
-
-	rec := &sessionRecord{numLevel: db.s.o.GetNumLevel()}
-	rec.addCompPtr(c.level, c.imax)
-
-	if !noTrivial && c.trivial() {
-		t := c.tables[0][0]
-		db.logf("table@move L%d@%d -> L%d", c.level, t.file.Num(), c.level+1)
-		rec.delTable(c.level, t.file.Num())
-		rec.addTableFile(c.level+1, t)
-		db.compactionTransactFunc("table@move", func(cnt *compactionTransactCounter) (err error) {
-			return db.s.commit(rec)
-		}, nil)
-		return
-	}
-
-	var stats [2]cStatsStaging
-	for i, tables := range c.tables {
-		for _, t := range tables {
-			stats[i].read += t.size
-			// Insert deleted tables into record
-			rec.delTable(c.level+i, t.file.Num())
-		}
-	}
-	sourceSize := int(stats[0].read + stats[1].read)
-	minSeq := db.minSeq()
-	db.logf("table@compaction L%d·%d -> L%d·%d S·%s Q·%d", c.level, len(c.tables[0]), c.level+1, len(c.tables[1]), shortenb(sourceSize), minSeq)
-
-	b := &tableCompactionBuilder{
-		db:        db,
-		s:         db.s,
-		c:         c,
-		rec:       rec,
-		stat1:     &stats[1],
-		minSeq:    minSeq,
-		strict:    db.s.o.GetStrict(opt.StrictCompaction),
-		tableSize: db.s.o.GetCompactionTableSize(c.level + 1),
-	}
-	db.compactionTransact("table@build", b)
-
-	// Commit changes
-	db.compactionTransactFunc("table@commit", func(cnt *compactionTransactCounter) (err error) {
-		stats[1].startTimer()
-		defer stats[1].stopTimer()
-		return db.s.commit(rec)
-	}, nil)
-
-	resultSize := int(stats[1].write)
-	db.logf("table@compaction committed F%s S%s Ke·%d D·%d T·%v", sint(len(rec.addedTables)-len(rec.deletedTables)), sshortenb(resultSize-sourceSize), b.kerrCnt, b.dropCnt, stats[1].duration)
-
-	// Save compaction stats
-	for i := range stats {
-		db.compStats[c.level+1].add(&stats[i])
-	}
-}
-
-func (db *DB) tableRangeCompaction(level int, umin, umax []byte) {
-	db.logf("table@compaction range L%d %q:%q", level, umin, umax)
-
-	if level >= 0 {
-		if c := db.s.getCompactionRange(level, umin, umax); c != nil {
-			db.tableCompaction(c, true)
-		}
-	} else {
-		v := db.s.version()
-		m := 1
-		for i, t := range v.tables[1:] {
-			if t.overlaps(db.s.icmp, umin, umax, false) {
-				m = i + 1
-			}
-		}
-		v.release()
-
-		for level := 0; level < m; level++ {
-			if c := db.s.getCompactionRange(level, umin, umax); c != nil {
-				db.tableCompaction(c, true)
-			}
-		}
-	}
-}
-
-func (db *DB) tableAutoCompaction() {
-	if c := db.s.pickCompaction(); c != nil {
-		db.tableCompaction(c, false)
-	}
-}
-
-func (db *DB) tableNeedCompaction() bool {
-	v := db.s.version()
-	defer v.release()
-	return v.needCompaction()
-}
-
-func (db *DB) pauseCompaction(ch chan<- struct{}) {
-	select {
-	case ch <- struct{}{}:
-	case _, _ = <-db.closeC:
-		db.compactionExitTransact()
-	}
-}
-
-type cCmd interface {
-	ack(err error)
-}
-
-type cIdle struct {
-	ackC chan<- error
-}
-
-func (r cIdle) ack(err error) {
-	if r.ackC != nil {
-		defer func() {
-			recover()
-		}()
-		r.ackC <- err
-	}
-}
-
-type cRange struct {
-	level    int
-	min, max []byte
-	ackC     chan<- error
-}
-
-func (r cRange) ack(err error) {
-	if r.ackC != nil {
-		defer func() {
-			recover()
-		}()
-		r.ackC <- err
-	}
-}
-
-// This will trigger auto compation and/or wait for all compaction to be done.
-func (db *DB) compSendIdle(compC chan<- cCmd) (err error) {
-	ch := make(chan error)
-	defer close(ch)
-	// Send cmd.
-	select {
-	case compC <- cIdle{ch}:
-	case err = <-db.compErrC:
-		return
-	case _, _ = <-db.closeC:
-		return ErrClosed
-	}
-	// Wait cmd.
-	select {
-	case err = <-ch:
-	case err = <-db.compErrC:
-	case _, _ = <-db.closeC:
-		return ErrClosed
-	}
-	return err
-}
-
-// This will trigger auto compaction but will not wait for it.
-func (db *DB) compSendTrigger(compC chan<- cCmd) {
-	select {
-	case compC <- cIdle{}:
-	default:
-	}
-}
-
-// Send range compaction request.
-func (db *DB) compSendRange(compC chan<- cCmd, level int, min, max []byte) (err error) {
-	ch := make(chan error)
-	defer close(ch)
-	// Send cmd.
-	select {
-	case compC <- cRange{level, min, max, ch}:
-	case err := <-db.compErrC:
-		return err
-	case _, _ = <-db.closeC:
-		return ErrClosed
-	}
-	// Wait cmd.
-	select {
-	case err = <-ch:
-	case err = <-db.compErrC:
-	case _, _ = <-db.closeC:
-		return ErrClosed
-	}
-	return err
-}
-
-func (db *DB) mCompaction() {
-	var x cCmd
-
-	defer func() {
-		if x := recover(); x != nil {
-			if x != errCompactionTransactExiting {
-				panic(x)
-			}
-		}
-		if x != nil {
-			x.ack(ErrClosed)
-		}
-		db.closeW.Done()
-	}()
-
-	for {
-		select {
-		case x = <-db.mcompCmdC:
-			switch x.(type) {
-			case cIdle:
-				db.memCompaction()
-				x.ack(nil)
-				x = nil
-			default:
-				panic("leveldb: unknown command")
-			}
-		case _, _ = <-db.closeC:
-			return
-		}
-	}
-}
-
-func (db *DB) tCompaction() {
-	var x cCmd
-	var ackQ []cCmd
-
-	defer func() {
-		if x := recover(); x != nil {
-			if x != errCompactionTransactExiting {
-				panic(x)
-			}
-		}
-		for i := range ackQ {
-			ackQ[i].ack(ErrClosed)
-			ackQ[i] = nil
-		}
-		if x != nil {
-			x.ack(ErrClosed)
-		}
-		db.closeW.Done()
-	}()
-
-	for {
-		if db.tableNeedCompaction() {
-			select {
-			case x = <-db.tcompCmdC:
-			case ch := <-db.tcompPauseC:
-				db.pauseCompaction(ch)
-				continue
-			case _, _ = <-db.closeC:
-				return
-			default:
-			}
-		} else {
-			for i := range ackQ {
-				ackQ[i].ack(nil)
-				ackQ[i] = nil
-			}
-			ackQ = ackQ[:0]
-			select {
-			case x = <-db.tcompCmdC:
-			case ch := <-db.tcompPauseC:
-				db.pauseCompaction(ch)
-				continue
-			case _, _ = <-db.closeC:
-				return
-			}
-		}
-		if x != nil {
-			switch cmd := x.(type) {
-			case cIdle:
-				ackQ = append(ackQ, x)
-			case cRange:
-				db.tableRangeCompaction(cmd.level, cmd.min, cmd.max)
-				x.ack(nil)
-			default:
-				panic("leveldb: unknown command")
-			}
-			x = nil
-		}
-		db.tableAutoCompaction()
-	}
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_iter.go

@@ -1,332 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"errors"
-	"runtime"
-	"sync"
-	"sync/atomic"
-
-	"github.com/syndtr/goleveldb/leveldb/iterator"
-	"github.com/syndtr/goleveldb/leveldb/opt"
-	"github.com/syndtr/goleveldb/leveldb/util"
-)
-
-var (
-	errInvalidIkey = errors.New("leveldb: Iterator: invalid internal key")
-)
-
-type memdbReleaser struct {
-	once sync.Once
-	m    *memDB
-}
-
-func (mr *memdbReleaser) Release() {
-	mr.once.Do(func() {
-		mr.m.decref()
-	})
-}
-
-func (db *DB) newRawIterator(slice *util.Range, ro *opt.ReadOptions) iterator.Iterator {
-	em, fm := db.getMems()
-	v := db.s.version()
-
-	ti := v.getIterators(slice, ro)
-	n := len(ti) + 2
-	i := make([]iterator.Iterator, 0, n)
-	emi := em.mdb.NewIterator(slice)
-	emi.SetReleaser(&memdbReleaser{m: em})
-	i = append(i, emi)
-	if fm != nil {
-		fmi := fm.mdb.NewIterator(slice)
-		fmi.SetReleaser(&memdbReleaser{m: fm})
-		i = append(i, fmi)
-	}
-	i = append(i, ti...)
-	strict := opt.GetStrict(db.s.o.Options, ro, opt.StrictReader)
-	mi := iterator.NewMergedIterator(i, db.s.icmp, strict)
-	mi.SetReleaser(&versionReleaser{v: v})
-	return mi
-}
-
-func (db *DB) newIterator(seq uint64, slice *util.Range, ro *opt.ReadOptions) *dbIter {
-	var islice *util.Range
-	if slice != nil {
-		islice = &util.Range{}
-		if slice.Start != nil {
-			islice.Start = newIkey(slice.Start, kMaxSeq, ktSeek)
-		}
-		if slice.Limit != nil {
-			islice.Limit = newIkey(slice.Limit, kMaxSeq, ktSeek)
-		}
-	}
-	rawIter := db.newRawIterator(islice, ro)
-	iter := &dbIter{
-		db:     db,
-		icmp:   db.s.icmp,
-		iter:   rawIter,
-		seq:    seq,
-		strict: opt.GetStrict(db.s.o.Options, ro, opt.StrictReader),
-		key:    make([]byte, 0),
-		value:  make([]byte, 0),
-	}
-	atomic.AddInt32(&db.aliveIters, 1)
-	runtime.SetFinalizer(iter, (*dbIter).Release)
-	return iter
-}
-
-type dir int
-
-const (
-	dirReleased dir = iota - 1
-	dirSOI
-	dirEOI
-	dirBackward
-	dirForward
-)
-
-// dbIter represent an interator states over a database session.
-type dbIter struct {
-	db     *DB
-	icmp   *iComparer
-	iter   iterator.Iterator
-	seq    uint64
-	strict bool
-
-	dir      dir
-	key      []byte
-	value    []byte
-	err      error
-	releaser util.Releaser
-}
-
-func (i *dbIter) setErr(err error) {
-	i.err = err
-	i.key = nil
-	i.value = nil
-}
-
-func (i *dbIter) iterErr() {
-	if err := i.iter.Error(); err != nil {
-		i.setErr(err)
-	}
-}
-
-func (i *dbIter) Valid() bool {
-	return i.err == nil && i.dir > dirEOI
-}
-
-func (i *dbIter) First() bool {
-	if i.err != nil {
-		return false
-	} else if i.dir == dirReleased {
-		i.err = ErrIterReleased
-		return false
-	}
-
-	if i.iter.First() {
-		i.dir = dirSOI
-		return i.next()
-	}
-	i.dir = dirEOI
-	i.iterErr()
-	return false
-}
-
-func (i *dbIter) Last() bool {
-	if i.err != nil {
-		return false
-	} else if i.dir == dirReleased {
-		i.err = ErrIterReleased
-		return false
-	}
-
-	if i.iter.Last() {
-		return i.prev()
-	}
-	i.dir = dirSOI
-	i.iterErr()
-	return false
-}
-
-func (i *dbIter) Seek(key []byte) bool {
-	if i.err != nil {
-		return false
-	} else if i.dir == dirReleased {
-		i.err = ErrIterReleased
-		return false
-	}
-
-	ikey := newIkey(key, i.seq, ktSeek)
-	if i.iter.Seek(ikey) {
-		i.dir = dirSOI
-		return i.next()
-	}
-	i.dir = dirEOI
-	i.iterErr()
-	return false
-}
-
-func (i *dbIter) next() bool {
-	for {
-		if ukey, seq, kt, kerr := parseIkey(i.iter.Key()); kerr == nil {
-			if seq <= i.seq {
-				switch kt {
-				case ktDel:
-					// Skip deleted key.
-					i.key = append(i.key[:0], ukey...)
-					i.dir = dirForward
-				case ktVal:
-					if i.dir == dirSOI || i.icmp.uCompare(ukey, i.key) > 0 {
-						i.key = append(i.key[:0], ukey...)
-						i.value = append(i.value[:0], i.iter.Value()...)
-						i.dir = dirForward
-						return true
-					}
-				}
-			}
-		} else if i.strict {
-			i.setErr(kerr)
-			break
-		}
-		if !i.iter.Next() {
-			i.dir = dirEOI
-			i.iterErr()
-			break
-		}
-	}
-	return false
-}
-
-func (i *dbIter) Next() bool {
-	if i.dir == dirEOI || i.err != nil {
-		return false
-	} else if i.dir == dirReleased {
-		i.err = ErrIterReleased
-		return false
-	}
-
-	if !i.iter.Next() || (i.dir == dirBackward && !i.iter.Next()) {
-		i.dir = dirEOI
-		i.iterErr()
-		return false
-	}
-	return i.next()
-}
-
-func (i *dbIter) prev() bool {
-	i.dir = dirBackward
-	del := true
-	if i.iter.Valid() {
-		for {
-			if ukey, seq, kt, kerr := parseIkey(i.iter.Key()); kerr == nil {
-				if seq <= i.seq {
-					if !del && i.icmp.uCompare(ukey, i.key) < 0 {
-						return true
-					}
-					del = (kt == ktDel)
-					if !del {
-						i.key = append(i.key[:0], ukey...)
-						i.value = append(i.value[:0], i.iter.Value()...)
-					}
-				}
-			} else if i.strict {
-				i.setErr(kerr)
-				return false
-			}
-			if !i.iter.Prev() {
-				break
-			}
-		}
-	}
-	if del {
-		i.dir = dirSOI
-		i.iterErr()
-		return false
-	}
-	return true
-}
-
-func (i *dbIter) Prev() bool {
-	if i.dir == dirSOI || i.err != nil {
-		return false
-	} else if i.dir == dirReleased {
-		i.err = ErrIterReleased
-		return false
-	}
-
-	switch i.dir {
-	case dirEOI:
-		return i.Last()
-	case dirForward:
-		for i.iter.Prev() {
-			if ukey, _, _, kerr := parseIkey(i.iter.Key()); kerr == nil {
-				if i.icmp.uCompare(ukey, i.key) < 0 {
-					goto cont
-				}
-			} else if i.strict {
-				i.setErr(kerr)
-				return false
-			}
-		}
-		i.dir = dirSOI
-		i.iterErr()
-		return false
-	}
-
-cont:
-	return i.prev()
-}
-
-func (i *dbIter) Key() []byte {
-	if i.err != nil || i.dir <= dirEOI {
-		return nil
-	}
-	return i.key
-}
-
-func (i *dbIter) Value() []byte {
-	if i.err != nil || i.dir <= dirEOI {
-		return nil
-	}
-	return i.value
-}
-
-func (i *dbIter) Release() {
-	if i.dir != dirReleased {
-		// Clear the finalizer.
-		runtime.SetFinalizer(i, nil)
-
-		if i.releaser != nil {
-			i.releaser.Release()
-			i.releaser = nil
-		}
-
-		i.dir = dirReleased
-		i.key = nil
-		i.value = nil
-		i.iter.Release()
-		i.iter = nil
-		atomic.AddInt32(&i.db.aliveIters, -1)
-		i.db = nil
-	}
-}
-
-func (i *dbIter) SetReleaser(releaser util.Releaser) {
-	if i.dir == dirReleased {
-		panic(util.ErrReleased)
-	}
-	if i.releaser != nil && releaser != nil {
-		panic(util.ErrHasReleaser)
-	}
-	i.releaser = releaser
-}
-
-func (i *dbIter) Error() error {
-	return i.err
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_snapshot.go

@@ -1,183 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"container/list"
-	"fmt"
-	"runtime"
-	"sync"
-	"sync/atomic"
-
-	"github.com/syndtr/goleveldb/leveldb/iterator"
-	"github.com/syndtr/goleveldb/leveldb/opt"
-	"github.com/syndtr/goleveldb/leveldb/util"
-)
-
-type snapshotElement struct {
-	seq uint64
-	ref int
-	e   *list.Element
-}
-
-// Acquires a snapshot, based on latest sequence.
-func (db *DB) acquireSnapshot() *snapshotElement {
-	db.snapsMu.Lock()
-	defer db.snapsMu.Unlock()
-
-	seq := db.getSeq()
-
-	if e := db.snapsList.Back(); e != nil {
-		se := e.Value.(*snapshotElement)
-		if se.seq == seq {
-			se.ref++
-			return se
-		} else if seq < se.seq {
-			panic("leveldb: sequence number is not increasing")
-		}
-	}
-	se := &snapshotElement{seq: seq, ref: 1}
-	se.e = db.snapsList.PushBack(se)
-	return se
-}
-
-// Releases given snapshot element.
-func (db *DB) releaseSnapshot(se *snapshotElement) {
-	db.snapsMu.Lock()
-	defer db.snapsMu.Unlock()
-
-	se.ref--
-	if se.ref == 0 {
-		db.snapsList.Remove(se.e)
-		se.e = nil
-	} else if se.ref < 0 {
-		panic("leveldb: Snapshot: negative element reference")
-	}
-}
-
-// Gets minimum sequence that not being snapshoted.
-func (db *DB) minSeq() uint64 {
-	db.snapsMu.Lock()
-	defer db.snapsMu.Unlock()
-
-	if e := db.snapsList.Front(); e != nil {
-		return e.Value.(*snapshotElement).seq
-	}
-
-	return db.getSeq()
-}
-
-// Snapshot is a DB snapshot.
-type Snapshot struct {
-	db       *DB
-	elem     *snapshotElement
-	mu       sync.RWMutex
-	released bool
-}
-
-// Creates new snapshot object.
-func (db *DB) newSnapshot() *Snapshot {
-	snap := &Snapshot{
-		db:   db,
-		elem: db.acquireSnapshot(),
-	}
-	atomic.AddInt32(&db.aliveSnaps, 1)
-	runtime.SetFinalizer(snap, (*Snapshot).Release)
-	return snap
-}
-
-func (snap *Snapshot) String() string {
-	return fmt.Sprintf("leveldb.Snapshot{%d}", snap.elem.seq)
-}
-
-// Get gets the value for the given key. It returns ErrNotFound if
-// the DB does not contains the key.
-//
-// The caller should not modify the contents of the returned slice, but
-// it is safe to modify the contents of the argument after Get returns.
-func (snap *Snapshot) Get(key []byte, ro *opt.ReadOptions) (value []byte, err error) {
-	err = snap.db.ok()
-	if err != nil {
-		return
-	}
-	snap.mu.RLock()
-	defer snap.mu.RUnlock()
-	if snap.released {
-		err = ErrSnapshotReleased
-		return
-	}
-	return snap.db.get(key, snap.elem.seq, ro)
-}
-
-// Has returns true if the DB does contains the given key.
-//
-// It is safe to modify the contents of the argument after Get returns.
-func (snap *Snapshot) Has(key []byte, ro *opt.ReadOptions) (ret bool, err error) {
-	err = snap.db.ok()
-	if err != nil {
-		return
-	}
-	snap.mu.RLock()
-	defer snap.mu.RUnlock()
-	if snap.released {
-		err = ErrSnapshotReleased
-		return
-	}
-	return snap.db.has(key, snap.elem.seq, ro)
-}
-
-// NewIterator returns an iterator for the snapshot of the uderlying DB.
-// The returned iterator is not goroutine-safe, but it is safe to use
-// multiple iterators concurrently, with each in a dedicated goroutine.
-// It is also safe to use an iterator concurrently with modifying its
-// underlying DB. The resultant key/value pairs are guaranteed to be
-// consistent.
-//
-// Slice allows slicing the iterator to only contains keys in the given
-// range. A nil Range.Start is treated as a key before all keys in the
-// DB. And a nil Range.Limit is treated as a key after all keys in
-// the DB.
-//
-// The iterator must be released after use, by calling Release method.
-// Releasing the snapshot doesn't mean releasing the iterator too, the
-// iterator would be still valid until released.
-//
-// Also read Iterator documentation of the leveldb/iterator package.
-func (snap *Snapshot) NewIterator(slice *util.Range, ro *opt.ReadOptions) iterator.Iterator {
-	if err := snap.db.ok(); err != nil {
-		return iterator.NewEmptyIterator(err)
-	}
-	snap.mu.Lock()
-	defer snap.mu.Unlock()
-	if snap.released {
-		return iterator.NewEmptyIterator(ErrSnapshotReleased)
-	}
-	// Since iterator already hold version ref, it doesn't need to
-	// hold snapshot ref.
-	return snap.db.newIterator(snap.elem.seq, slice, ro)
-}
-
-// Release releases the snapshot. This will not release any returned
-// iterators, the iterators would still be valid until released or the
-// underlying DB is closed.
-//
-// Other methods should not be called after the snapshot has been released.
-func (snap *Snapshot) Release() {
-	snap.mu.Lock()
-	defer snap.mu.Unlock()
-
-	if !snap.released {
-		// Clear the finalizer.
-		runtime.SetFinalizer(snap, nil)
-
-		snap.released = true
-		snap.db.releaseSnapshot(snap.elem)
-		atomic.AddInt32(&snap.db.aliveSnaps, -1)
-		snap.db = nil
-		snap.elem = nil
-	}
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_state.go

@@ -1,202 +0,0 @@
-// Copyright (c) 2013, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"sync/atomic"
-	"time"
-
-	"github.com/syndtr/goleveldb/leveldb/journal"
-	"github.com/syndtr/goleveldb/leveldb/memdb"
-)
-
-type memDB struct {
-	db  *DB
-	mdb *memdb.DB
-	ref int32
-}
-
-func (m *memDB) incref() {
-	atomic.AddInt32(&m.ref, 1)
-}
-
-func (m *memDB) decref() {
-	if ref := atomic.AddInt32(&m.ref, -1); ref == 0 {
-		// Only put back memdb with std capacity.
-		if m.mdb.Capacity() == m.db.s.o.GetWriteBuffer() {
-			m.mdb.Reset()
-			m.db.mpoolPut(m.mdb)
-		}
-		m.db = nil
-		m.mdb = nil
-	} else if ref < 0 {
-		panic("negative memdb ref")
-	}
-}
-
-// Get latest sequence number.
-func (db *DB) getSeq() uint64 {
-	return atomic.LoadUint64(&db.seq)
-}
-
-// Atomically adds delta to seq.
-func (db *DB) addSeq(delta uint64) {
-	atomic.AddUint64(&db.seq, delta)
-}
-
-func (db *DB) mpoolPut(mem *memdb.DB) {
-	defer func() {
-		recover()
-	}()
-	select {
-	case db.memPool <- mem:
-	default:
-	}
-}
-
-func (db *DB) mpoolGet() *memdb.DB {
-	select {
-	case mem := <-db.memPool:
-		return mem
-	default:
-		return nil
-	}
-}
-
-func (db *DB) mpoolDrain() {
-	ticker := time.NewTicker(30 * time.Second)
-	for {
-		select {
-		case <-ticker.C:
-			select {
-			case <-db.memPool:
-			default:
-			}
-		case _, _ = <-db.closeC:
-			close(db.memPool)
-			return
-		}
-	}
-}
-
-// Create new memdb and froze the old one; need external synchronization.
-// newMem only called synchronously by the writer.
-func (db *DB) newMem(n int) (mem *memDB, err error) {
-	num := db.s.allocFileNum()
-	file := db.s.getJournalFile(num)
-	w, err := file.Create()
-	if err != nil {
-		db.s.reuseFileNum(num)
-		return
-	}
-
-	db.memMu.Lock()
-	defer db.memMu.Unlock()
-
-	if db.frozenMem != nil {
-		panic("still has frozen mem")
-	}
-
-	if db.journal == nil {
-		db.journal = journal.NewWriter(w)
-	} else {
-		db.journal.Reset(w)
-		db.journalWriter.Close()
-		db.frozenJournalFile = db.journalFile
-	}
-	db.journalWriter = w
-	db.journalFile = file
-	db.frozenMem = db.mem
-	mdb := db.mpoolGet()
-	if mdb == nil || mdb.Capacity() < n {
-		mdb = memdb.New(db.s.icmp, maxInt(db.s.o.GetWriteBuffer(), n))
-	}
-	mem = &memDB{
-		db:  db,
-		mdb: mdb,
-		ref: 2,
-	}
-	db.mem = mem
-	// The seq only incremented by the writer. And whoever called newMem
-	// should hold write lock, so no need additional synchronization here.
-	db.frozenSeq = db.seq
-	return
-}
-
-// Get all memdbs.
-func (db *DB) getMems() (e, f *memDB) {
-	db.memMu.RLock()
-	defer db.memMu.RUnlock()
-	if db.mem == nil {
-		panic("nil effective mem")
-	}
-	db.mem.incref()
-	if db.frozenMem != nil {
-		db.frozenMem.incref()
-	}
-	return db.mem, db.frozenMem
-}
-
-// Get frozen memdb.
-func (db *DB) getEffectiveMem() *memDB {
-	db.memMu.RLock()
-	defer db.memMu.RUnlock()
-	if db.mem == nil {
-		panic("nil effective mem")
-	}
-	db.mem.incref()
-	return db.mem
-}
-
-// Check whether we has frozen memdb.
-func (db *DB) hasFrozenMem() bool {
-	db.memMu.RLock()
-	defer db.memMu.RUnlock()
-	return db.frozenMem != nil
-}
-
-// Get frozen memdb.
-func (db *DB) getFrozenMem() *memDB {
-	db.memMu.RLock()
-	defer db.memMu.RUnlock()
-	if db.frozenMem != nil {
-		db.frozenMem.incref()
-	}
-	return db.frozenMem
-}
-
-// Drop frozen memdb; assume that frozen memdb isn't nil.
-func (db *DB) dropFrozenMem() {
-	db.memMu.Lock()
-	if err := db.frozenJournalFile.Remove(); err != nil {
-		db.logf("journal@remove removing @%d %q", db.frozenJournalFile.Num(), err)
-	} else {
-		db.logf("journal@remove removed @%d", db.frozenJournalFile.Num())
-	}
-	db.frozenJournalFile = nil
-	db.frozenMem.decref()
-	db.frozenMem = nil
-	db.memMu.Unlock()
-}
-
-// Set closed flag; return true if not already closed.
-func (db *DB) setClosed() bool {
-	return atomic.CompareAndSwapUint32(&db.closed, 0, 1)
-}
-
-// Check whether DB was closed.
-func (db *DB) isClosed() bool {
-	return atomic.LoadUint32(&db.closed) != 0
-}
-
-// Check read ok status.
-func (db *DB) ok() error {
-	if db.isClosed() {
-		return ErrClosed
-	}
-	return nil
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_util.go

@@ -1,100 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"github.com/syndtr/goleveldb/leveldb/errors"
-	"github.com/syndtr/goleveldb/leveldb/iterator"
-	"github.com/syndtr/goleveldb/leveldb/opt"
-	"github.com/syndtr/goleveldb/leveldb/storage"
-	"github.com/syndtr/goleveldb/leveldb/util"
-)
-
-// Reader is the interface that wraps basic Get and NewIterator methods.
-// This interface implemented by both DB and Snapshot.
-type Reader interface {
-	Get(key []byte, ro *opt.ReadOptions) (value []byte, err error)
-	NewIterator(slice *util.Range, ro *opt.ReadOptions) iterator.Iterator
-}
-
-type Sizes []uint64
-
-// Sum returns sum of the sizes.
-func (p Sizes) Sum() (n uint64) {
-	for _, s := range p {
-		n += s
-	}
-	return n
-}
-
-// Logging.
-func (db *DB) log(v ...interface{})                 { db.s.log(v...) }
-func (db *DB) logf(format string, v ...interface{}) { db.s.logf(format, v...) }
-
-// Check and clean files.
-func (db *DB) checkAndCleanFiles() error {
-	v := db.s.version()
-	defer v.release()
-
-	tablesMap := make(map[uint64]bool)
-	for _, tables := range v.tables {
-		for _, t := range tables {
-			tablesMap[t.file.Num()] = false
-		}
-	}
-
-	files, err := db.s.getFiles(storage.TypeAll)
-	if err != nil {
-		return err
-	}
-
-	var nTables int
-	var rem []storage.File
-	for _, f := range files {
-		keep := true
-		switch f.Type() {
-		case storage.TypeManifest:
-			keep = f.Num() >= db.s.manifestFile.Num()
-		case storage.TypeJournal:
-			if db.frozenJournalFile != nil {
-				keep = f.Num() >= db.frozenJournalFile.Num()
-			} else {
-				keep = f.Num() >= db.journalFile.Num()
-			}
-		case storage.TypeTable:
-			_, keep = tablesMap[f.Num()]
-			if keep {
-				tablesMap[f.Num()] = true
-				nTables++
-			}
-		}
-
-		if !keep {
-			rem = append(rem, f)
-		}
-	}
-
-	if nTables != len(tablesMap) {
-		var missing []*storage.FileInfo
-		for num, present := range tablesMap {
-			if !present {
-				missing = append(missing, &storage.FileInfo{Type: storage.TypeTable, Num: num})
-				db.logf("db@janitor table missing @%d", num)
-			}
-		}
-		return errors.NewErrCorrupted(nil, &errors.ErrMissingFiles{Files: missing})
-	}
-
-	db.logf("db@janitor F·%d G·%d", len(files), len(rem))
-	for _, f := range rem {
-		db.logf("db@janitor removing %s-%d", f.Type(), f.Num())
-		if err := f.Remove(); err != nil {
-			return err
-		}
-	}
-	return nil
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_write.go

@@ -1,311 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"time"
-
-	"github.com/syndtr/goleveldb/leveldb/memdb"
-	"github.com/syndtr/goleveldb/leveldb/opt"
-	"github.com/syndtr/goleveldb/leveldb/util"
-)
-
-func (db *DB) writeJournal(b *Batch) error {
-	w, err := db.journal.Next()
-	if err != nil {
-		return err
-	}
-	if _, err := w.Write(b.encode()); err != nil {
-		return err
-	}
-	if err := db.journal.Flush(); err != nil {
-		return err
-	}
-	if b.sync {
-		return db.journalWriter.Sync()
-	}
-	return nil
-}
-
-func (db *DB) jWriter() {
-	defer db.closeW.Done()
-	for {
-		select {
-		case b := <-db.journalC:
-			if b != nil {
-				db.journalAckC <- db.writeJournal(b)
-			}
-		case _, _ = <-db.closeC:
-			return
-		}
-	}
-}
-
-func (db *DB) rotateMem(n int) (mem *memDB, err error) {
-	// Wait for pending memdb compaction.
-	err = db.compSendIdle(db.mcompCmdC)
-	if err != nil {
-		return
-	}
-
-	// Create new memdb and journal.
-	mem, err = db.newMem(n)
-	if err != nil {
-		return
-	}
-
-	// Schedule memdb compaction.
-	db.compSendTrigger(db.mcompCmdC)
-	return
-}
-
-func (db *DB) flush(n int) (mem *memDB, nn int, err error) {
-	delayed := false
-	flush := func() (retry bool) {
-		v := db.s.version()
-		defer v.release()
-		mem = db.getEffectiveMem()
-		defer func() {
-			if retry {
-				mem.decref()
-				mem = nil
-			}
-		}()
-		nn = mem.mdb.Free()
-		switch {
-		case v.tLen(0) >= db.s.o.GetWriteL0SlowdownTrigger() && !delayed:
-			delayed = true
-			time.Sleep(time.Millisecond)
-		case nn >= n:
-			return false
-		case v.tLen(0) >= db.s.o.GetWriteL0PauseTrigger():
-			delayed = true
-			err = db.compSendIdle(db.tcompCmdC)
-			if err != nil {
-				return false
-			}
-		default:
-			// Allow memdb to grow if it has no entry.
-			if mem.mdb.Len() == 0 {
-				nn = n
-			} else {
-				mem.decref()
-				mem, err = db.rotateMem(n)
-				if err == nil {
-					nn = mem.mdb.Free()
-				} else {
-					nn = 0
-				}
-			}
-			return false
-		}
-		return true
-	}
-	start := time.Now()
-	for flush() {
-	}
-	if delayed {
-		db.writeDelay += time.Since(start)
-		db.writeDelayN++
-	} else if db.writeDelayN > 0 {
-		db.logf("db@write was delayed N·%d T·%v", db.writeDelayN, db.writeDelay)
-		db.writeDelay = 0
-		db.writeDelayN = 0
-	}
-	return
-}
-
-// Write apply the given batch to the DB. The batch will be applied
-// sequentially.
-//
-// It is safe to modify the contents of the arguments after Write returns.
-func (db *DB) Write(b *Batch, wo *opt.WriteOptions) (err error) {
-	err = db.ok()
-	if err != nil || b == nil || b.Len() == 0 {
-		return
-	}
-
-	b.init(wo.GetSync())
-
-	// The write happen synchronously.
-	select {
-	case db.writeC <- b:
-		if <-db.writeMergedC {
-			return <-db.writeAckC
-		}
-	case db.writeLockC <- struct{}{}:
-	case err = <-db.compPerErrC:
-		return
-	case _, _ = <-db.closeC:
-		return ErrClosed
-	}
-
-	merged := 0
-	danglingMerge := false
-	defer func() {
-		if danglingMerge {
-			db.writeMergedC <- false
-		} else {
-			<-db.writeLockC
-		}
-		for i := 0; i < merged; i++ {
-			db.writeAckC <- err
-		}
-	}()
-
-	mem, memFree, err := db.flush(b.size())
-	if err != nil {
-		return
-	}
-	defer mem.decref()
-
-	// Calculate maximum size of the batch.
-	m := 1 << 20
-	if x := b.size(); x <= 128<<10 {
-		m = x + (128 << 10)
-	}
-	m = minInt(m, memFree)
-
-	// Merge with other batch.
-drain:
-	for b.size() < m && !b.sync {
-		select {
-		case nb := <-db.writeC:
-			if b.size()+nb.size() <= m {
-				b.append(nb)
-				db.writeMergedC <- true
-				merged++
-			} else {
-				danglingMerge = true
-				break drain
-			}
-		default:
-			break drain
-		}
-	}
-
-	// Set batch first seq number relative from last seq.
-	b.seq = db.seq + 1
-
-	// Write journal concurrently if it is large enough.
-	if b.size() >= (128 << 10) {
-		// Push the write batch to the journal writer
-		select {
-		case db.journalC <- b:
-			// Write into memdb
-			if berr := b.memReplay(mem.mdb); berr != nil {
-				panic(berr)
-			}
-		case err = <-db.compPerErrC:
-			return
-		case _, _ = <-db.closeC:
-			err = ErrClosed
-			return
-		}
-		// Wait for journal writer
-		select {
-		case err = <-db.journalAckC:
-			if err != nil {
-				// Revert memdb if error detected
-				if berr := b.revertMemReplay(mem.mdb); berr != nil {
-					panic(berr)
-				}
-				return
-			}
-		case _, _ = <-db.closeC:
-			err = ErrClosed
-			return
-		}
-	} else {
-		err = db.writeJournal(b)
-		if err != nil {
-			return
-		}
-		if berr := b.memReplay(mem.mdb); berr != nil {
-			panic(berr)
-		}
-	}
-
-	// Set last seq number.
-	db.addSeq(uint64(b.Len()))
-
-	if b.size() >= memFree {
-		db.rotateMem(0)
-	}
-	return
-}
-
-// Put sets the value for the given key. It overwrites any previous value
-// for that key; a DB is not a multi-map.
-//
-// It is safe to modify the contents of the arguments after Put returns.
-func (db *DB) Put(key, value []byte, wo *opt.WriteOptions) error {
-	b := new(Batch)
-	b.Put(key, value)
-	return db.Write(b, wo)
-}
-
-// Delete deletes the value for the given key. It returns ErrNotFound if
-// the DB does not contain the key.
-//
-// It is safe to modify the contents of the arguments after Delete returns.
-func (db *DB) Delete(key []byte, wo *opt.WriteOptions) error {
-	b := new(Batch)
-	b.Delete(key)
-	return db.Write(b, wo)
-}
-
-func isMemOverlaps(icmp *iComparer, mem *memdb.DB, min, max []byte) bool {
-	iter := mem.NewIterator(nil)
-	defer iter.Release()
-	return (max == nil || (iter.First() && icmp.uCompare(max, iKey(iter.Key()).ukey()) >= 0)) &&
-		(min == nil || (iter.Last() && icmp.uCompare(min, iKey(iter.Key()).ukey()) <= 0))
-}
-
-// CompactRange compacts the underlying DB for the given key range.
-// In particular, deleted and overwritten versions are discarded,
-// and the data is rearranged to reduce the cost of operations
-// needed to access the data. This operation should typically only
-// be invoked by users who understand the underlying implementation.
-//
-// A nil Range.Start is treated as a key before all keys in the DB.
-// And a nil Range.Limit is treated as a key after all keys in the DB.
-// Therefore if both is nil then it will compact entire DB.
-func (db *DB) CompactRange(r util.Range) error {
-	if err := db.ok(); err != nil {
-		return err
-	}
-
-	// Lock writer.
-	select {
-	case db.writeLockC <- struct{}{}:
-	case err := <-db.compPerErrC:
-		return err
-	case _, _ = <-db.closeC:
-		return ErrClosed
-	}
-
-	// Check for overlaps in memdb.
-	mem := db.getEffectiveMem()
-	defer mem.decref()
-	if isMemOverlaps(db.s.icmp, mem.mdb, r.Start, r.Limit) {
-		// Memdb compaction.
-		if _, err := db.rotateMem(0); err != nil {
-			<-db.writeLockC
-			return err
-		}
-		<-db.writeLockC
-		if err := db.compSendIdle(db.mcompCmdC); err != nil {
-			return err
-		}
-	} else {
-		<-db.writeLockC
-	}
-
-	// Table compaction.
-	return db.compSendRange(db.tcompCmdC, -1, r.Start, r.Limit)
-}

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/doc.go

@@ -1,90 +0,0 @@
-// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Package leveldb provides implementation of LevelDB key/value database.
-//
-// Create or open a database:
-//
-//	db, err := leveldb.OpenFile("path/to/db", nil)
-//	...
-//	defer db.Close()
-//	...
-//
-// Read or modify the database content:
-//
-//	// Remember that the contents of the returned slice should not be modified.
-//	data, err := db.Get([]byte("key"), nil)
-//	...
-//	err = db.Put([]byte("key"), []byte("value"), nil)
-//	...
-//	err = db.Delete([]byte("key"), nil)
-//	...
-//
-// Iterate over database content:
-//
-//	iter := db.NewIterator(nil, nil)
-//	for iter.Next() {
-//		// Remember that the contents of the returned slice should not be modified, and
-//		// only valid until the next call to Next.
-//		key := iter.Key()
-//		value := iter.Value()
-//		...
-//	}
-//	iter.Release()
-//	err = iter.Error()
-//	...
-//
-// Iterate over subset of database content with a particular prefix:
-//	iter := db.NewIterator(util.BytesPrefix([]byte("foo-")), nil)
-//	for iter.Next() {
-//		// Use key/value.
-//		...
-//	}
-//	iter.Release()
-//	err = iter.Error()
-//	...
-//
-// Seek-then-Iterate:
-//
-// 	iter := db.NewIterator(nil, nil)
-// 	for ok := iter.Seek(key); ok; ok = iter.Next() {
-// 		// Use key/value.
-// 		...
-// 	}
-// 	iter.Release()
-// 	err = iter.Error()
-// 	...
-//
-// Iterate over subset of database content:
-//
-// 	iter := db.NewIterator(&util.Range{Start: []byte("foo"), Limit: []byte("xoo")}, nil)
-// 	for iter.Next() {
-// 		// Use key/value.
-// 		...
-// 	}
-// 	iter.Release()
-// 	err = iter.Error()
-// 	...
-//
-// Batch writes:
-//
-//	batch := new(leveldb.Batch)
-//	batch.Put([]byte("foo"), []byte("value"))
-//	batch.Put([]byte("bar"), []byte("another value"))
-//	batch.Delete([]byte("baz"))
-//	err = db.Write(batch, nil)
-//	...
-//
-// Use bloom filter:
-//
-//	o := &opt.Options{
-//		Filter: filter.NewBloomFilter(10),
-//	}
-//	db, err := leveldb.OpenFile("path/to/db", o)
-//	...
-//	defer db.Close()
-//	...
-package leveldb

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/errors.go

@@ -1,18 +0,0 @@
-// Copyright (c) 2014, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package leveldb
-
-import (
-	"github.com/syndtr/goleveldb/leveldb/errors"
-)
-
-var (
-	ErrNotFound         = errors.ErrNotFound
-	ErrSnapshotReleased = errors.New("leveldb: snapshot released")
-	ErrIterReleased     = errors.New("leveldb: iterator released")
-	ErrClosed           = errors.New("leveldb: closed")
-)

Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/errors/errors.go

@@ -1,76 +0,0 @@
-// Copyright (c) 2014, Suryandaru Triandana <syndtr@gmail.com>
-// All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Package errors provides common error types used throughout leveldb.
-package errors
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/syndtr/goleveldb/leveldb/storage"
-	"github.com/syndtr/goleveldb/leveldb/util"
-)
-
-var (
-	ErrNotFound    = New("leveldb: not found")
-	ErrReleased    = util.ErrReleased
-	ErrHasReleaser = util.ErrHasReleaser
-)
-
-// New returns an error that formats as the given text.
-func New(text string) error {
-	return errors.New(text)
-}
-
-// ErrCorrupted is the type that wraps errors that indicate corruption in
-// the database.
-type ErrCorrupted struct {
-	File *storage.FileInfo
-	Err  error
-}
-
-func (e *ErrCorrupted) Error() string {
-	if e.File != nil {
-		return fmt.Sprintf("%v [file=%v]", e.Err, e.File)
-	} else {
-		return e.Err.Error()
-	}
-}
-
-// NewErrCorrupted creates new ErrCorrupted error.
-func NewErrCorrupted(f storage.File, err error) error {
-	return &ErrCorrupted{storage.NewFileInfo(f), err}
-}
-
-// IsCorrupted returns a boolean indicating whether the error is indicating
-// a corruption.
-func IsCorrupted(err error) bool {
-	switch err.(type) {
-	case *ErrCorrupted:
-		return true
-	}
-	return false
-}
-
-// ErrMissingFiles is the type that indicating a corruption due to missing
-// files.
-type ErrMissingFiles struct {
-	Files []*storage.FileInfo
-}
-
-func (e *ErrMissingFiles) Error() string { return "file missing" }
-
-// SetFile sets 'file info' of the given error with the given file.
-// Currently only ErrCorrupted is supported, otherwise will do nothing.
-func SetFile(err error, f storage.File) error {
-	switch x := err.(type) {
-	case *ErrCorrupted:
-		x.File = storage.NewFileInfo(f)
-		return x
-	}
-	return err
-}