1 /*
2  * Copyright (c) 2012 The Native Client Authors. All rights reserved.
3  * Use of this source code is governed by a BSD-style license that can be
4  * found in the LICENSE file.
5  */
6 
7 #include "native_client/src/shared/platform/nacl_check.h"
8 #include "native_client/src/shared/platform/nacl_host_desc.h"
9 #include "native_client/src/shared/platform/posix/nacl_fast_mutex.h"
10 
NaClFastMutexCtor(struct NaClFastMutex * flp)11 int NaClFastMutexCtor(struct NaClFastMutex *flp) {
12   if (0 != pthread_mutex_init(&flp->mu, (pthread_mutexattr_t *) NULL)) {
13     return 0;
14   }
15   return 1;
16 }
17 
NaClFastMutexDtor(struct NaClFastMutex * flp)18 void NaClFastMutexDtor(struct NaClFastMutex *flp) {
19   pthread_mutex_destroy(&flp->mu);
20 }
21 
NaClFastMutexLock(struct NaClFastMutex * flp)22 void NaClFastMutexLock(struct NaClFastMutex *flp) {
23   CHECK(0 == pthread_mutex_lock(&flp->mu));
24 }
25 
NaClFastMutexTryLock(struct NaClFastMutex * flp)26 int NaClFastMutexTryLock(struct NaClFastMutex *flp) {
27   return NaClXlateErrno(pthread_mutex_trylock(&flp->mu));
28 }
29 
NaClFastMutexUnlock(struct NaClFastMutex * flp)30 void NaClFastMutexUnlock(struct NaClFastMutex *flp) {
31   CHECK(0 == pthread_mutex_unlock(&flp->mu));
32 }
33