1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
// 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() : start_time_(TimeTicks::Now()) {}
ElapsedTimer::ElapsedTimer(ElapsedTimer&& other)
: start_time_(other.start_time_) {}
void ElapsedTimer::operator=(ElapsedTimer&& other) {
start_time_ = other.start_time_;
}
TimeDelta ElapsedTimer::Elapsed() const {
if (g_mock_elapsed_timers_for_test) {
return ScopedMockElapsedTimersForTest::kMockElapsedTime;
}
return TimeTicks::Now() - start_time_;
}
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
|
