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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/profiler/tracked_time.h" | 5 #include "base/profiler/tracked_time.h" |
6 | 6 |
7 #include "build/build_config.h" | 7 #include "build/build_config.h" |
8 | 8 |
9 #if defined(OS_WIN) | 9 #if defined(OS_WIN) |
10 #include <mmsystem.h> // Declare timeGetTime()... after including build_config. | 10 #include <mmsystem.h> // Declare timeGetTime()... after including build_config. |
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48 TrackedTime::TrackedTime(const base::TimeTicks& time) | 48 TrackedTime::TrackedTime(const base::TimeTicks& time) |
49 : ms_((time - base::TimeTicks()).InMilliseconds()) { | 49 : ms_((time - base::TimeTicks()).InMilliseconds()) { |
50 } | 50 } |
51 | 51 |
52 // static | 52 // static |
53 TrackedTime TrackedTime::Now() { | 53 TrackedTime TrackedTime::Now() { |
54 #if defined(OS_WIN) | 54 #if defined(OS_WIN) |
55 // Use lock-free accessor to 32 bit time. | 55 // Use lock-free accessor to 32 bit time. |
56 // Note that TimeTicks::Now() is built on this, so we have "compatible" | 56 // Note that TimeTicks::Now() is built on this, so we have "compatible" |
57 // times when we down-convert a TimeTicks sample. | 57 // times when we down-convert a TimeTicks sample. |
58 // TODO(jar): Surface this interface via something in base/time.h. | 58 // TODO(jar): Surface this interface via something in base/time/time.h. |
59 return TrackedTime(static_cast<int32>(timeGetTime())); | 59 return TrackedTime(static_cast<int32>(timeGetTime())); |
60 #else | 60 #else |
61 // Posix has nice cheap 64 bit times, so we just down-convert it. | 61 // Posix has nice cheap 64 bit times, so we just down-convert it. |
62 return TrackedTime(base::TimeTicks::Now()); | 62 return TrackedTime(base::TimeTicks::Now()); |
63 #endif // OS_WIN | 63 #endif // OS_WIN |
64 } | 64 } |
65 | 65 |
66 Duration TrackedTime::operator-(const TrackedTime& other) const { | 66 Duration TrackedTime::operator-(const TrackedTime& other) const { |
67 return Duration(ms_ - other.ms_); | 67 return Duration(ms_ - other.ms_); |
68 } | 68 } |
69 | 69 |
70 TrackedTime TrackedTime::operator+(const Duration& other) const { | 70 TrackedTime TrackedTime::operator+(const Duration& other) const { |
71 return TrackedTime(ms_ + other.ms_); | 71 return TrackedTime(ms_ + other.ms_); |
72 } | 72 } |
73 | 73 |
74 bool TrackedTime::is_null() const { return ms_ == 0; } | 74 bool TrackedTime::is_null() const { return ms_ == 0; } |
75 | 75 |
76 } // namespace tracked_objects | 76 } // namespace tracked_objects |
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