15 Commits (99ed54926b04ab95da534513076dc49bf7ac0a5b)

Author	SHA1	Message	Date
Josh Bleecher Snyder	997b19545b	syncs: use TryLock and TryRLock instead of unsafe ... The docs say: Note that while correct uses of TryLock do exist, they are rare, and use of TryLock is often a sign of a deeper problem in a particular use of mutexes. Rare code! Or bad code! Who can tell! Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	cf8fcc1254	syncs: mark as safe for Go 1.18 ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	d2aa144dcc	syncs: bump known good version to include Go 1.17 ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Josh Bleecher Snyder	a5da4ed981	all: gofmt with Go 1.17 ... This adds "//go:build" lines and tidies up existing "// +build" lines. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	e4fecfe31d	wgengine/{monitor,router}: restore Linux ip rules when systemd deletes them ... Thanks. Fixes #1591 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Crawshaw	676e32ad72	syncs: add AtomicUint32 ... Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
David Crawshaw	297b3d6fa4	staticcheck.conf: turn off noisy lint errors ... Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Josh Bleecher Snyder	d3ba860ffd	syncs: stop running TestWatchMultipleValues on CI ... It's flaky, and not just on Windows. Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>	4 years ago
Josh Bleecher Snyder	0807e3e2f7	syncs: disable TestWatchMultipleValues on Windows CI builds ... The Windows CI machine experiences significant random execution delays. For example, in this code from watchdog.go: done := make(chan bool) go func() { start := time.Now() mu.Lock() There was a 500ms delay from initializing done to locking mu. This test checks that we receive a sufficient number of events quickly enough. In the face of random 500ms delays, unsurprisingly, the test fails. There's not much principled we can do about it. We could build a system of retries or attempt to detect these random delays, but that game isn't worth the candle. Skip the test. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	77ec80538a	syncs: add Semaphore ... Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Dmytro Tananayskiy	c431382720	Fix receiver in order to be consistent: syncs.WaitGroupChan ... Signed-off-by: Dmytro Tananayskiy <dmitriyminer@gmail.com>	4 years ago
Josh Bleecher Snyder	9ab2b32569	syncs: add Watch, for monitoring mutex contention ... Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	bf24d54143	syncs: add AssertLocked ... This allows us to check lock invariants. It was proposed upstream and rejected in: https://github.com/golang/go/issues/1366 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Brad Fitzpatrick	d3134ad0c8	syncs: add AtomicBool	5 years ago
Brad Fitzpatrick	b4d02a251a	syncs: add new package for extra sync types	5 years ago