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/*
* Copyright 2016 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "rtc_base/task_queue_posix.h"
#include "rtc_base/checks.h"
#include "rtc_base/task_queue.h"
namespace rtc {
namespace internal {
pthread_key_t g_queue_ptr_tls = 0;
void InitializeTls() {
RTC_CHECK(pthread_key_create(&g_queue_ptr_tls, nullptr) == 0);
}
pthread_key_t GetQueuePtrTls() {
static pthread_once_t init_once = PTHREAD_ONCE_INIT;
RTC_CHECK(pthread_once(&init_once, &InitializeTls) == 0);
return g_queue_ptr_tls;
}
AutoSetCurrentQueuePtr::AutoSetCurrentQueuePtr(TaskQueue* q)
: prev_(TaskQueue::Current()) {
pthread_setspecific(GetQueuePtrTls(), q);
}
AutoSetCurrentQueuePtr::~AutoSetCurrentQueuePtr() {
pthread_setspecific(GetQueuePtrTls(), prev_);
}
} // namespace internal
} // namespace rtc
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