libgo/misc/cgo/test/sigprocmask.go

   1 // Copyright 2015 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build !windows
   6
   7 package cgotest
   8
   9 /*
  10 #cgo CFLAGS: -pthread
  11 #cgo LDFLAGS: -pthread
  12 extern int RunSigThread();
  13 extern int CheckBlocked();
  14 */
  15 import "C"
  16 import (
  17         "os"
  18         "os/signal"
  19         "syscall"
  20         "testing"
  21 )
  22
  23 var blocked bool
  24
  25 //export IntoGoAndBack
  26 func IntoGoAndBack() {
  27         // Verify that SIGIO stays blocked on the C thread
  28         // even when unblocked for signal.Notify().
  29         signal.Notify(make(chan os.Signal), syscall.SIGIO)
  30         blocked = C.CheckBlocked() != 0
  31 }
  32
  33 func testSigprocmask(t *testing.T) {
  34         if r := C.RunSigThread(); r != 0 {
  35                 t.Error("pthread_create/pthread_join failed")
  36         }
  37         if !blocked {
  38                 t.Error("Go runtime unblocked SIGIO")
  39         }
  40 }