libgo/runtime/thread.c

   1 // Copyright 2010 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 #include "runtime.h"
   6
   7 void
   8 runtime_initlock(Lock *l)
   9 {
  10         if(pthread_mutex_init(&l->mutex, NULL) != 0)
  11                 runtime_throw("pthread_mutex_init failed");
  12 }
  13
  14 void
  15 runtime_lock(Lock *l)
  16 {
  17         if(pthread_mutex_lock(&l->mutex) != 0)
  18                 runtime_throw("lock failed");
  19 }
  20
  21 void
  22 runtime_unlock(Lock *l)
  23 {
  24         if(pthread_mutex_unlock(&l->mutex) != 0)
  25                 runtime_throw("unlock failed");
  26 }
  27
  28 void
  29 runtime_destroylock(Lock *l)
  30 {
  31         pthread_mutex_destroy(&l->mutex);
  32 }
  33
  34 bool
  35 runtime_trylock(Lock *l)
  36 {
  37         return pthread_mutex_trylock(&l->mutex) == 0;
  38 }