mirror of
https://github.com/tailscale/tailscale.git
synced 2026-05-29 19:18:57 -04:00
d1912167dc
serveFilePut tracked outgoing-file progress through an unbuffered progressUpdates channel whose close was owned by the request goroutine while writers were spread across manifest parsing, the progresstracking.Reader callback, singleFilePut failure paths, and the success path. That writer-closes mismatch made the send-on-closed-channel panic effectively unfixable in place. Replace it with a request-scoped outgoingProgress reporter. Transfer code reports state by method call; the reporter coalesces hot-path updates and is flushed once via defer in serveFilePut. With no producer channel to close, the panic is structurally impossible. Fixes #19115 Fixes #19817 Change-Id: I8f00d982d2c79880dfc1f8104c5eed06e94b5a6c Signed-off-by: James Tucker <james@tailscale.com>