Index: webrtc/base/sequenced_task_checker_impl.cc |
diff --git a/webrtc/base/sequenced_task_checker_impl.cc b/webrtc/base/sequenced_task_checker_impl.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..971cc65d384d6489d20d3705eceed72a513653f6 |
--- /dev/null |
+++ b/webrtc/base/sequenced_task_checker_impl.cc |
@@ -0,0 +1,52 @@ |
+/* |
+ * Copyright (c) 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 "webrtc/base/sequenced_task_checker_impl.h" |
+ |
+#include "webrtc/base/platform_thread.h" |
+#include "webrtc/base/sequenced_task_checker.h" |
+ |
+namespace rtc { |
+ |
+SequencedTaskCheckerImpl::SequencedTaskCheckerImpl() |
+ : attached_(true), valid_queue_(TaskQueue::Current()) {} |
+ |
+SequencedTaskCheckerImpl::~SequencedTaskCheckerImpl() {} |
+ |
+bool SequencedTaskCheckerImpl::CalledSequentially() const { |
+ TaskQueue* current_queue = TaskQueue::Current(); |
+ CritScope scoped_lock(&lock_); |
+ if (!attached_) { // true if previously detached. |
+ valid_queue_ = current_queue; |
+ attached_ = true; |
+ } |
+ if (!valid_queue_) |
+ return thread_checker_.CalledOnValidThread(); |
+ return valid_queue_ == current_queue; |
+} |
+ |
+void SequencedTaskCheckerImpl::Detach() { |
+ CritScope scoped_lock(&lock_); |
+ attached_ = false; |
+ valid_queue_ = nullptr; |
+ thread_checker_.DetachFromThread(); |
+} |
+ |
+namespace internal { |
+ |
+SequencedTaskCheckerScope::SequencedTaskCheckerScope( |
+ const SequencedTaskChecker* checker) { |
+ RTC_DCHECK(checker->CalledSequentially()); |
+} |
+ |
+SequencedTaskCheckerScope::~SequencedTaskCheckerScope() {} |
+ |
+} // namespace internal |
+} // namespace rtc |