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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /third_party/libwebrtc/api/task_queue/task_queue_base.cc | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/api/task_queue/task_queue_base.cc')
-rw-r--r-- | third_party/libwebrtc/api/task_queue/task_queue_base.cc | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/task_queue/task_queue_base.cc b/third_party/libwebrtc/api/task_queue/task_queue_base.cc new file mode 100644 index 0000000000..ecdc7f7691 --- /dev/null +++ b/third_party/libwebrtc/api/task_queue/task_queue_base.cc @@ -0,0 +1,81 @@ +/* + * Copyright 2019 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 "api/task_queue/task_queue_base.h" + +#include "absl/base/attributes.h" +#include "absl/base/config.h" +#include "absl/functional/any_invocable.h" +#include "api/units/time_delta.h" +#include "rtc_base/checks.h" + +#if defined(ABSL_HAVE_THREAD_LOCAL) + +namespace webrtc { +namespace { + +ABSL_CONST_INIT thread_local TaskQueueBase* current = nullptr; + +} // namespace + +TaskQueueBase* TaskQueueBase::Current() { + return current; +} + +TaskQueueBase::CurrentTaskQueueSetter::CurrentTaskQueueSetter( + TaskQueueBase* task_queue) + : previous_(current) { + current = task_queue; +} + +TaskQueueBase::CurrentTaskQueueSetter::~CurrentTaskQueueSetter() { + current = previous_; +} +} // namespace webrtc + +#elif defined(WEBRTC_POSIX) + +#include <pthread.h> + +namespace webrtc { +namespace { + +ABSL_CONST_INIT 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; +} + +} // namespace + +TaskQueueBase* TaskQueueBase::Current() { + return static_cast<TaskQueueBase*>(pthread_getspecific(GetQueuePtrTls())); +} + +TaskQueueBase::CurrentTaskQueueSetter::CurrentTaskQueueSetter( + TaskQueueBase* task_queue) + : previous_(TaskQueueBase::Current()) { + pthread_setspecific(GetQueuePtrTls(), task_queue); +} + +TaskQueueBase::CurrentTaskQueueSetter::~CurrentTaskQueueSetter() { + pthread_setspecific(GetQueuePtrTls(), previous_); +} + +} // namespace webrtc + +#else +#error Unsupported platform +#endif |