blob: e45ace700cefd375078ab43a7c733748b321c8a8 [file] [log] [blame]
// Copyright 2013 The Chromium Authors
// 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"
#include "base/check.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