| // Copyright 2013 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // Futex is only available on Dragonfly, FreeBSD and Linux. |
| // The race detector emits calls to split stack functions so it breaks the test. |
| // +build dragonfly freebsd linux |
| // +build !race |
| |
| package runtime_test |
| |
| import ( |
| . "runtime" |
| "testing" |
| "time" |
| ) |
| |
| func TestFutexsleep(t *testing.T) { |
| ch := make(chan bool, 1) |
| var dummy uint32 |
| start := time.Now() |
| go func() { |
| Entersyscall() |
| Futexsleep(&dummy, 0, (1<<31+100)*1e9) |
| Exitsyscall() |
| ch <- true |
| }() |
| select { |
| case <-ch: |
| t.Errorf("futexsleep finished early after %s!", time.Since(start)) |
| case <-time.After(time.Second): |
| Futexwakeup(&dummy, 1) |
| } |
| } |