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runtime: convert windows netpollWakeSig to atomic type

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Updates #53821

Change-Id: Ifc5bc551a4bcf82bf10d2e670ad2644eb9c6b334
Reviewed-on: https://go-review.googlesource.com/c/go/+/423879
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
This commit is contained in:
Cuong Manh Le 2022-08-17 16:21:00 +07:00
parent ec8ed5bd02
commit 9b988c9094
1 changed files with 3 additions and 3 deletions
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6
src/runtime/netpoll_windows.go
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@ -35,7 +35,7 @@ type overlappedEntry struct {
var (
iocphandle uintptr = _INVALID_HANDLE_VALUE // completion port io handle
netpollWakeSig uint32 // used to avoid duplicate calls of netpollBreak
netpollWakeSig atomic.Uint32 // used to avoid duplicate calls of netpollBreak
)
func netpollinit() {
@ -68,7 +68,7 @@ func netpollarm(pd *pollDesc, mode int) {
func netpollBreak() {
// Failing to cas indicates there is an in-flight wakeup, so we're done here.
if !atomic.Cas(&netpollWakeSig, 0, 1) {
if !netpollWakeSig.CompareAndSwap(0, 1) {
return
}
@ -136,7 +136,7 @@ func netpoll(delay int64) gList {
}
handlecompletion(&toRun, op, errno, qty)
} else {
atomic.Store(&netpollWakeSig, 0)
netpollWakeSig.Store(0)
if delay == 0 {
// Forward the notification to the
// blocked poller.