blob: f1edd6d28f5be7d4ac59404aecd47e0b8ba6777d [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/profiler/tracked_time.h"
#include "build/build_config.h"
#if defined(OS_WIN)
#include <mmsystem.h> // Declare timeGetTime()... after including build_config.
#endif
namespace tracked_objects {
Duration::Duration() : ms_(0) {}
Duration::Duration(int32 duration) : ms_(duration) {}
Duration& Duration::operator+=(const Duration& other) {
ms_ += other.ms_;
return *this;
}
Duration Duration::operator+(const Duration& other) const {
return Duration(ms_ + other.ms_);
}
bool Duration::operator==(const Duration& other) const {
return ms_ == other.ms_;
}
bool Duration::operator!=(const Duration& other) const {
return ms_ != other.ms_;
}
bool Duration::operator>(const Duration& other) const {
return ms_ > other.ms_;
}
// static
Duration Duration::FromMilliseconds(int ms) { return Duration(ms); }
int32 Duration::InMilliseconds() const { return ms_; }
//------------------------------------------------------------------------------
TrackedTime::TrackedTime() : ms_(0) {}
TrackedTime::TrackedTime(int32 ms) : ms_(ms) {}
TrackedTime::TrackedTime(const base::TimeTicks& time)
: ms_((time - base::TimeTicks()).InMilliseconds()) {
}
// static
TrackedTime TrackedTime::Now() {
#if defined(OS_WIN)
// Use lock-free accessor to 32 bit time.
// Note that TimeTicks::Now() is built on this, so we have "compatible"
// times when we down-convert a TimeTicks sample.
// TODO(jar): Surface this interface via something in base/time.h.
return TrackedTime(static_cast<int32>(timeGetTime()));
#else
// Posix has nice cheap 64 bit times, so we just down-convert it.
return TrackedTime(base::TimeTicks::Now());
#endif // OS_WIN
}
Duration TrackedTime::operator-(const TrackedTime& other) const {
return Duration(ms_ - other.ms_);
}
TrackedTime TrackedTime::operator+(const Duration& other) const {
return TrackedTime(ms_ + other.ms_);
}
bool TrackedTime::is_null() const { return ms_ == 0; }
} // namespace tracked_objects