Repo created

TMessagesProj/jni/voip/webrtc/base/synchronization/atomic_flag.cc

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+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/synchronization/atomic_flag.h"
+
+#include "base/logging.h"
+
+namespace base {
+
+AtomicFlag::AtomicFlag() {
+  // It doesn't matter where the AtomicFlag is built so long as it's always
+  // Set() from the same sequence after. Note: the sequencing requirements are
+  // necessary for IsSet()'s callers to know which sequence's memory operations
+  // they are synchronized with.
+  DETACH_FROM_SEQUENCE(set_sequence_checker_);
+}
+
+AtomicFlag::~AtomicFlag() = default;
+
+void AtomicFlag::Set() {
+  DCHECK_CALLED_ON_VALID_SEQUENCE(set_sequence_checker_);
+  flag_.store(1, std::memory_order_release);
+}
+
+void AtomicFlag::UnsafeResetForTesting() {
+  DETACH_FROM_SEQUENCE(set_sequence_checker_);
+  flag_.store(0, std::memory_order_release);
+}
+
+}  // namespace base