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runtime: fix build on non-Linux platforms

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CL 78538 was updated after running TryBots to depend on
syscall.NanoSleep which isn't available on all non-Linux platforms.

Change-Id: I1fa615232b3920453431861310c108b208628441
Reviewed-on: https://go-review.googlesource.com/79175
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Brad Fitzpatrick 2017-11-21 20:46:40 +00:00 • committed by Austin Clements
parent 597213c87c
commit 1e3f563b14
2 changed files with 22 additions and 8 deletions
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18
src/runtime/proc_test.go
View file

@ -750,16 +750,18 @@ func BenchmarkWakeupParallelSpinning(b *testing.B) {
})
}
// sysNanosleep is defined by OS-specific files (such as runtime_linux_test.go)
// to sleep for the given duration. If nil, dependent tests are skipped.
// The implementation should invoke a blocking system call and not
// call time.Sleep, which would deschedule the goroutine.
var sysNanosleep func(d time.Duration)
func BenchmarkWakeupParallelSyscall(b *testing.B) {
if sysNanosleep == nil {
b.Skipf("skipping on %v; sysNanosleep not defined", runtime.GOOS)
}
benchmarkWakeupParallel(b, func(d time.Duration) {
// Invoke a blocking syscall directly; calling time.Sleep()
// would deschedule the goroutine instead.
ts := syscall.NsecToTimespec(d.Nanoseconds())
for {
if err := syscall.Nanosleep(&ts, &ts); err != syscall.EINTR {
return
}
}
sysNanosleep(d)
})
}