1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <limits>
6 #include <string>
7
8 #include "cc/test/test_now_source.h"
9
10 namespace cc {
11
12 // TestNowSource::Constructors
Create()13 scoped_refptr<TestNowSource> TestNowSource::Create() {
14 return make_scoped_refptr(new TestNowSource());
15 }
16
Create(base::TimeTicks initial)17 scoped_refptr<TestNowSource> TestNowSource::Create(base::TimeTicks initial) {
18 return make_scoped_refptr(new TestNowSource(initial));
19 }
20
Create(int64_t initial)21 scoped_refptr<TestNowSource> TestNowSource::Create(int64_t initial) {
22 return make_scoped_refptr(new TestNowSource(initial));
23 }
24
TestNowSource()25 TestNowSource::TestNowSource()
26 : initial_(base::TimeTicks::FromInternalValue(10000)), now_() {
27 Reset();
28 }
29
TestNowSource(base::TimeTicks initial)30 TestNowSource::TestNowSource(base::TimeTicks initial)
31 : initial_(initial), now_() {
32 Reset();
33 }
34
TestNowSource(int64_t initial)35 TestNowSource::TestNowSource(int64_t initial)
36 : initial_(base::TimeTicks::FromInternalValue(initial)), now_() {
37 Reset();
38 }
39
~TestNowSource()40 TestNowSource::~TestNowSource() {
41 }
42
43 // TestNowSource actual functionality
Reset()44 void TestNowSource::Reset() {
45 TRACE_EVENT_INSTANT2("cc",
46 "TestNowSource::Reset",
47 TRACE_EVENT_SCOPE_THREAD,
48 "previous",
49 now_,
50 "initial",
51 initial_);
52 now_ = initial_;
53 }
54
Now() const55 base::TimeTicks TestNowSource::Now() const {
56 return now_;
57 }
58
SetNow(base::TimeTicks time)59 void TestNowSource::SetNow(base::TimeTicks time) {
60 TRACE_EVENT_INSTANT2("cc",
61 "TestNowSource::SetNow",
62 TRACE_EVENT_SCOPE_THREAD,
63 "previous",
64 now_,
65 "new",
66 time);
67 DCHECK(time >= now_); // Time should always go forward.
68 now_ = time;
69 }
70
AdvanceNow(base::TimeDelta period)71 void TestNowSource::AdvanceNow(base::TimeDelta period) {
72 TRACE_EVENT_INSTANT2("cc",
73 "TestNowSource::AdvanceNow",
74 TRACE_EVENT_SCOPE_THREAD,
75 "previous",
76 now_,
77 "by",
78 period.ToInternalValue());
79 DCHECK(now_ != kAbsoluteMaxNow);
80 DCHECK(period >= base::TimeDelta()); // Time should always go forward.
81 now_ += period;
82 }
83
84 const base::TimeTicks TestNowSource::kAbsoluteMaxNow =
85 base::TimeTicks::FromInternalValue(std::numeric_limits<int64_t>::max());
86
87 // TestNowSource::Convenience functions
AdvanceNowMicroseconds(int64_t period_in_microseconds)88 void TestNowSource::AdvanceNowMicroseconds(int64_t period_in_microseconds) {
89 AdvanceNow(base::TimeDelta::FromMicroseconds(period_in_microseconds));
90 }
SetNowMicroseconds(int64_t time_in_microseconds)91 void TestNowSource::SetNowMicroseconds(int64_t time_in_microseconds) {
92 SetNow(base::TimeTicks::FromInternalValue(time_in_microseconds));
93 }
94
95 // TestNowSource::Tracing functions
AsValueInto(base::debug::TracedValue * state) const96 void TestNowSource::AsValueInto(base::debug::TracedValue* state) const {
97 state->SetInteger("now_in_microseconds", now_.ToInternalValue());
98 }
99
AsValue() const100 scoped_refptr<base::debug::ConvertableToTraceFormat> TestNowSource::AsValue()
101 const {
102 scoped_refptr<base::debug::TracedValue> state =
103 new base::debug::TracedValue();
104 AsValueInto(state.get());
105 return state;
106 }
107
108 // TestNowSource::Pretty printing functions
ToString() const109 std::string TestNowSource::ToString() const {
110 std::string output("TestNowSource(");
111 AsValue()->AppendAsTraceFormat(&output);
112 output += ")";
113 return output;
114 }
115
operator <<(::std::ostream & os,const scoped_refptr<TestNowSource> & src)116 ::std::ostream& operator<<(::std::ostream& os,
117 const scoped_refptr<TestNowSource>& src) {
118 os << src->ToString();
119 return os;
120 }
PrintTo(const scoped_refptr<TestNowSource> & src,::std::ostream * os)121 void PrintTo(const scoped_refptr<TestNowSource>& src, ::std::ostream* os) {
122 *os << src;
123 }
124
125 } // namespace cc
126