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https://github.com/waydroid/waydroid.git
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b67b4415c1
Certain devices with Ubunutu Touch make use of the schedtune cgroup boosting mechanism,
allowing for better performance system-wide with very little tweaking.
Some devices have trouble using this cgroup in a regular GNU/Linux setting because
their kernels are not carrying the necessary kernel patch for enabling nesting. [1]
To please both those that want Waydroid to stop dropping their performance as well as
those having unpatched kernels, probe the capability to nest schedtune cgroups.
[1]: 6452429d1f
266 lines
8.8 KiB
Python
266 lines
8.8 KiB
Python
# Copyright 2021 Erfan Abdi
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# SPDX-License-Identifier: GPL-3.0-or-later
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from shutil import which
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import logging
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import os
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import time
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import glob
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import signal
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import sys
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import uuid
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import tools.config
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from tools import helpers
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from tools import services
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import dbus
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import dbus.service
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import dbus.exceptions
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from gi.repository import GLib
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class DbusContainerManager(dbus.service.Object):
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def __init__(self, looper, bus, object_path, args):
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self.args = args
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self.looper = looper
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dbus.service.Object.__init__(self, bus, object_path)
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@dbus.service.method("id.waydro.ContainerManager", in_signature='a{ss}', out_signature='', sender_keyword="sender", connection_keyword="conn")
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def Start(self, session, sender, conn):
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dbus_info = dbus.Interface(conn.get_object("org.freedesktop.DBus", "/org/freedesktop/DBus/Bus", False), "org.freedesktop.DBus")
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uid = dbus_info.GetConnectionUnixUser(sender)
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if str(uid) not in ["0", session["user_id"]]:
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raise RuntimeError("Cannot start a session on behalf of another user")
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pid = dbus_info.GetConnectionUnixProcessID(sender)
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if str(uid) != "0" and str(pid) != session["pid"]:
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raise RuntimeError("Invalid session pid")
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do_start(self.args, session)
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@dbus.service.method("id.waydro.ContainerManager", in_signature='b', out_signature='')
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def Stop(self, quit_session):
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stop(self.args, quit_session)
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@dbus.service.method("id.waydro.ContainerManager", in_signature='', out_signature='')
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def Freeze(self):
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freeze(self.args)
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@dbus.service.method("id.waydro.ContainerManager", in_signature='', out_signature='')
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def Unfreeze(self):
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unfreeze(self.args)
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@dbus.service.method("id.waydro.ContainerManager", in_signature='', out_signature='a{ss}')
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def GetSession(self):
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try:
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session = self.args.session
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session["state"] = helpers.lxc.status(self.args)
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return session
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except AttributeError:
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return {}
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def service(args, looper):
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dbus_obj = DbusContainerManager(looper, dbus.SystemBus(), '/ContainerManager', args)
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looper.run()
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def set_permissions(args, perm_list=None, mode="777"):
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def chmod(path, mode):
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if os.path.exists(path):
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command = ["chmod", mode, "-R", path]
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tools.helpers.run.user(args, command, check=False)
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# Nodes list
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if not perm_list:
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perm_list = [
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"/dev/ashmem",
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# sw_sync for HWC
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"/dev/sw_sync",
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"/sys/kernel/debug/sync/sw_sync",
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# Media
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"/dev/Vcodec",
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"/dev/MTK_SMI",
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"/dev/mdp_sync",
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"/dev/mtk_cmdq",
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# Graphics
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"/dev/dri",
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"/dev/graphics",
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"/dev/pvr_sync",
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"/dev/ion",
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]
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# Framebuffers
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perm_list.extend(glob.glob("/dev/fb*"))
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# Videos
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perm_list.extend(glob.glob("/dev/video*"))
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for path in perm_list:
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chmod(path, mode)
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def start(args):
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try:
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name = dbus.service.BusName("id.waydro.Container", dbus.SystemBus(), do_not_queue=True)
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except dbus.exceptions.NameExistsException:
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logging.error("Container service is already running")
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return
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status = helpers.lxc.status(args)
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if status == "STOPPED":
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# Load binder and ashmem drivers
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cfg = tools.config.load(args)
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if cfg["waydroid"]["vendor_type"] == "MAINLINE":
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if helpers.drivers.probeBinderDriver(args) != 0:
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logging.error("Failed to load Binder driver")
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helpers.drivers.probeAshmemDriver(args)
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helpers.drivers.loadBinderNodes(args)
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set_permissions(args, [
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"/dev/" + args.BINDER_DRIVER,
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"/dev/" + args.VNDBINDER_DRIVER,
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"/dev/" + args.HWBINDER_DRIVER
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], "666")
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mainloop = GLib.MainLoop()
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def sigint_handler(data):
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stop(args)
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mainloop.quit()
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GLib.unix_signal_add(GLib.PRIORITY_HIGH, signal.SIGINT, sigint_handler, None)
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GLib.unix_signal_add(GLib.PRIORITY_HIGH, signal.SIGTERM, sigint_handler, None)
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service(args, mainloop)
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else:
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logging.error("WayDroid container is {}".format(status))
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def do_start(args, session):
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if "session" in args:
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raise RuntimeError("Already tracking a session")
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# Networking
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command = [tools.config.tools_src +
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"/data/scripts/waydroid-net.sh", "start"]
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tools.helpers.run.user(args, command)
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# Sensors
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if which("waydroid-sensord"):
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tools.helpers.run.user(
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args, ["waydroid-sensord", "/dev/" + args.HWBINDER_DRIVER], output="background")
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# Cgroup hacks
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if which("start"):
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command = ["start", "cgroup-lite"]
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tools.helpers.run.user(args, command, check=False)
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# Keep schedtune around in case nesting is supported
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if os.path.ismount("/sys/fs/cgroup/schedtune"):
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try:
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os.mkdir("/sys/fs/cgroup/schedtune/probe0")
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os.mkdir("/sys/fs/cgroup/schedtune/probe0/probe1")
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except:
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command = ["umount", "-l", "/sys/fs/cgroup/schedtune"]
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tools.helpers.run.user(args, command, check=False)
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finally:
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if os.path.exists("/sys/fs/cgroup/schedtune/probe0/probe1"):
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os.rmdir("/sys/fs/cgroup/schedtune/probe0/probe1")
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if os.path.exists("/sys/fs/cgroup/schedtune/probe0"):
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os.rmdir("/sys/fs/cgroup/schedtune/probe0")
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#TODO: remove NFC hacks
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if which("stop"):
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command = ["stop", "nfcd"]
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tools.helpers.run.user(args, command, check=False)
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elif which("systemctl") and (tools.helpers.run.user(args, ["systemctl", "is-active", "-q", "nfcd"], check=False) == 0):
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command = ["systemctl", "stop", "nfcd"]
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tools.helpers.run.user(args, command, check=False)
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# Set permissions
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set_permissions(args)
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# Create session-specific LXC config file
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helpers.lxc.generate_session_lxc_config(args, session)
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# Backwards compatibility
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with open(tools.config.defaults["lxc"] + "/waydroid/config") as f:
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if "config_session" not in f.read():
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helpers.mount.bind(args, session["waydroid_data"],
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tools.config.defaults["data"])
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# Mount rootfs
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cfg = tools.config.load(args)
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helpers.images.mount_rootfs(args, cfg["waydroid"]["images_path"], session)
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helpers.protocol.set_aidl_version(args)
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helpers.lxc.start(args)
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services.hardware_manager.start(args)
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args.session = session
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def stop(args, quit_session=True):
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try:
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services.hardware_manager.stop(args)
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status = helpers.lxc.status(args)
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if status != "STOPPED":
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helpers.lxc.stop(args)
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while helpers.lxc.status(args) != "STOPPED":
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pass
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# Networking
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command = [tools.config.tools_src +
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"/data/scripts/waydroid-net.sh", "stop"]
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tools.helpers.run.user(args, command, check=False)
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#TODO: remove NFC hacks
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if which("start"):
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command = ["start", "nfcd"]
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tools.helpers.run.user(args, command, check=False)
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elif which("systemctl") and (tools.helpers.run.user(args, ["systemctl", "is-enabled", "-q", "nfcd"], check=False) == 0):
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command = ["systemctl", "start", "nfcd"]
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tools.helpers.run.user(args, command, check=False)
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# Sensors
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if which("waydroid-sensord"):
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command = ["pidof", "waydroid-sensord"]
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pid = tools.helpers.run.user(args, command, check=False, output_return=True).strip()
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if pid:
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command = ["kill", "-9", pid]
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tools.helpers.run.user(args, command, check=False)
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# Umount rootfs
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helpers.images.umount_rootfs(args)
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# Backwards compatibility
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try:
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helpers.mount.umount_all(args, tools.config.defaults["data"])
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except:
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pass
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if "session" in args:
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if quit_session:
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try:
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os.kill(int(args.session["pid"]), signal.SIGUSR1)
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except:
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pass
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del args.session
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except:
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pass
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def restart(args):
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status = helpers.lxc.status(args)
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if status == "RUNNING":
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helpers.lxc.stop(args)
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helpers.lxc.start(args)
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else:
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logging.error("WayDroid container is {}".format(status))
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def freeze(args):
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status = helpers.lxc.status(args)
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if status == "RUNNING":
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helpers.lxc.freeze(args)
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while helpers.lxc.status(args) == "RUNNING":
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pass
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else:
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logging.error("WayDroid container is {}".format(status))
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def unfreeze(args):
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status = helpers.lxc.status(args)
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if status == "FROZEN":
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helpers.lxc.unfreeze(args)
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while helpers.lxc.status(args) == "FROZEN":
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pass
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