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      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
      3 // found in the LICENSE file.
      4 
      5 #include "base/profiler/tracked_time.h"
      6 
      7 #include "build/build_config.h"
      8 
      9 #if defined(OS_WIN)
     10 #include <mmsystem.h>  // Declare timeGetTime()... after including build_config.
     11 #endif
     12 
     13 namespace tracked_objects {
     14 
     15 Duration::Duration() : ms_(0) {}
     16 Duration::Duration(int32_t duration) : ms_(duration) {}
     17 
     18 Duration& Duration::operator+=(const Duration& other) {
     19   ms_ += other.ms_;
     20   return *this;
     21 }
     22 
     23 Duration Duration::operator+(const Duration& other) const {
     24   return Duration(ms_ + other.ms_);
     25 }
     26 
     27 bool Duration::operator==(const Duration& other) const {
     28   return ms_ == other.ms_;
     29 }
     30 
     31 bool Duration::operator!=(const Duration& other) const {
     32   return ms_ != other.ms_;
     33 }
     34 
     35 bool Duration::operator>(const Duration& other) const {
     36   return ms_ > other.ms_;
     37 }
     38 
     39 // static
     40 Duration Duration::FromMilliseconds(int ms) { return Duration(ms); }
     41 
     42 int32_t Duration::InMilliseconds() const {
     43   return ms_;
     44 }
     45 
     46 //------------------------------------------------------------------------------
     47 
     48 TrackedTime::TrackedTime() : ms_(0) {}
     49 TrackedTime::TrackedTime(int32_t ms) : ms_(ms) {}
     50 TrackedTime::TrackedTime(const base::TimeTicks& time)
     51     : ms_(static_cast<int32_t>((time - base::TimeTicks()).InMilliseconds())) {}
     52 
     53 // static
     54 TrackedTime TrackedTime::Now() {
     55   return TrackedTime(base::TimeTicks::Now());
     56 }
     57 
     58 Duration TrackedTime::operator-(const TrackedTime& other) const {
     59   return Duration(ms_ - other.ms_);
     60 }
     61 
     62 TrackedTime TrackedTime::operator+(const Duration& other) const {
     63   return TrackedTime(ms_ + other.ms_);
     64 }
     65 
     66 bool TrackedTime::is_null() const { return ms_ == 0; }
     67 
     68 }  // namespace tracked_objects
     69