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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include "js/Utility.h"
#include "threading/Mutex.h"
#include "threading/posix/MutexPlatformData.h"
#define TRY_CALL_PTHREADS(call, msg) \
{ \
int result = (call); \
if (result != 0) { \
errno = result; \
perror(msg); \
MOZ_CRASH(msg); \
} \
}
js::detail::MutexImpl::MutexImpl()
{
AutoEnterOOMUnsafeRegion oom;
platformData_ = js_new<PlatformData>();
if (!platformData_)
oom.crash("js::detail::MutexImpl::MutexImpl");
pthread_mutexattr_t* attrp = nullptr;
#ifdef DEBUG
pthread_mutexattr_t attr;
TRY_CALL_PTHREADS(pthread_mutexattr_init(&attr),
"js::detail::MutexImpl::MutexImpl: pthread_mutexattr_init failed");
TRY_CALL_PTHREADS(pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK),
"js::detail::MutexImpl::MutexImpl: pthread_mutexattr_settype failed");
attrp = &attr;
#endif
TRY_CALL_PTHREADS(pthread_mutex_init(&platformData()->ptMutex, attrp),
"js::detail::MutexImpl::MutexImpl: pthread_mutex_init failed");
#ifdef DEBUG
TRY_CALL_PTHREADS(pthread_mutexattr_destroy(&attr),
"js::detail::MutexImpl::MutexImpl: pthread_mutexattr_destroy failed");
#endif
}
js::detail::MutexImpl::~MutexImpl()
{
if (!platformData_)
return;
TRY_CALL_PTHREADS(pthread_mutex_destroy(&platformData()->ptMutex),
"js::detail::MutexImpl::~MutexImpl: pthread_mutex_destroy failed");
js_delete(platformData());
}
void
js::detail::MutexImpl::lock()
{
TRY_CALL_PTHREADS(pthread_mutex_lock(&platformData()->ptMutex),
"js::detail::MutexImpl::lock: pthread_mutex_lock failed");
}
void
js::detail::MutexImpl::unlock()
{
TRY_CALL_PTHREADS(pthread_mutex_unlock(&platformData()->ptMutex),
"js::detail::MutexImpl::unlock: pthread_mutex_unlock failed");
}
#undef TRY_CALL_PTHREADS
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