diff options
| author | Ian Lance Taylor <iant@golang.org> | 2019-04-10 17:56:18 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2019-10-22 18:41:00 +0000 |
| commit | 2e0aa581b4a2544249ad2f8e86e17204ca778ca7 (patch) | |
| tree | fd16f15efc56946b7f51343440457726b32be80a /src/runtime/netpoll.go | |
| parent | 3db6d46a4e0ee33eb34cef29f797ab7c12530a80 (diff) | |
| download | go-2e0aa581b4a2544249ad2f8e86e17204ca778ca7.tar.xz | |
runtime: add new addtimer function
When we add a timer, make sure that the network poller is initialized,
since we will use it if we have to wait for the timer to be ready.
Updates #27707
Change-Id: I0637fe646bade2cc5ce50b745712292aa9c445b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/171830
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Diffstat (limited to 'src/runtime/netpoll.go')
| -rw-r--r-- | src/runtime/netpoll.go | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/runtime/netpoll.go b/src/runtime/netpoll.go index 536dae3d4f..939b27061e 100644 --- a/src/runtime/netpoll.go +++ b/src/runtime/netpoll.go @@ -100,8 +100,13 @@ var ( //go:linkname poll_runtime_pollServerInit internal/poll.runtime_pollServerInit func poll_runtime_pollServerInit() { - netpollinit() - atomic.Store(&netpollInited, 1) + netpollGenericInit() +} + +func netpollGenericInit() { + if atomic.Cas(&netpollInited, 0, 1) { + netpollinit() + } } func netpollinited() bool { |