Repo created

TMessagesProj/jni/voip/webrtc/base/timer/elapsed_timer.cc

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+// Copyright 2013 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/timer/elapsed_timer.h"
+
+namespace base {
+
+namespace {
+bool g_mock_elapsed_timers_for_test = false;
+}  // namespace
+
+ElapsedTimer::ElapsedTimer() : begin_(TimeTicks::Now()) {}
+
+ElapsedTimer::ElapsedTimer(ElapsedTimer&& other) : begin_(other.begin_) {}
+
+void ElapsedTimer::operator=(ElapsedTimer&& other) {
+  begin_ = other.begin_;
+}
+
+TimeDelta ElapsedTimer::Elapsed() const {
+  if (g_mock_elapsed_timers_for_test)
+    return ScopedMockElapsedTimersForTest::kMockElapsedTime;
+  return TimeTicks::Now() - begin_;
+}
+
+ElapsedThreadTimer::ElapsedThreadTimer()
+    : is_supported_(ThreadTicks::IsSupported()),
+      begin_(is_supported_ ? ThreadTicks::Now() : ThreadTicks()) {}
+
+TimeDelta ElapsedThreadTimer::Elapsed() const {
+  if (!is_supported_)
+    return TimeDelta();
+  if (g_mock_elapsed_timers_for_test)
+    return ScopedMockElapsedTimersForTest::kMockElapsedTime;
+  return ThreadTicks::Now() - begin_;
+}
+
+// static
+constexpr TimeDelta ScopedMockElapsedTimersForTest::kMockElapsedTime;
+
+ScopedMockElapsedTimersForTest::ScopedMockElapsedTimersForTest() {
+  DCHECK(!g_mock_elapsed_timers_for_test);
+  g_mock_elapsed_timers_for_test = true;
+}
+
+ScopedMockElapsedTimersForTest::~ScopedMockElapsedTimersForTest() {
+  DCHECK(g_mock_elapsed_timers_for_test);
+  g_mock_elapsed_timers_for_test = false;
+}
+
+}  // namespace base