Russ Cox bc593eac2d sync: document implementation of Once.Do ... It's not correct to use atomic.CompareAndSwap to implement Once.Do, and we don't, but why we don't is a question that has come up twice on golang-dev in the past few months. Add a comment to help others with the same question. Change-Id: Ia89ec9715cc5442c6e7f13e57a49c6cfe664d32c Reviewed-on: https://go-review.googlesource.com/c/go/+/184261 Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Rob Pike <r@golang.org> Reviewed-by: Ingo Oeser <nightlyone@googlemail.com>		2019-07-01 14:45:49 +00:00
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atomic
cond_test.go
cond.go
example_pool_test.go
example_test.go
export_test.go	sync: fix pool wrap-around test	2019-06-26 19:48:39 +00:00
map_bench_test.go
map_reference_test.go
map_test.go
map.go
mutex_test.go
mutex.go	sync: allow inlining the Mutex.Lock fast path	2019-03-09 05:08:04 +00:00
once_test.go
once.go	sync: document implementation of Once.Do	2019-07-01 14:45:49 +00:00
pool_test.go	sync: only check for successful PopHeads in long mode	2019-06-26 19:48:42 +00:00
pool.go	sync: update comment	2019-04-19 16:15:36 +00:00
poolqueue.go	sync: internal dynamically sized lock-free queue for sync.Pool	2019-04-05 18:49:04 +00:00
runtime_sema_test.go
runtime.go	sync: allow inlining the Mutex.Lock fast path	2019-03-09 05:08:04 +00:00
rwmutex_test.go
rwmutex.go	sync: allow inlining the RWMutex.RUnlock fast path	2019-03-09 16:34:17 +00:00
waitgroup_test.go
waitgroup.go