michael@0: // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: 
michael@0: #include "base/time.h"
michael@0: #include "base/string_util.h"
michael@0: #include "base/sys_string_conversions.h"
michael@0: #include "prtime.h"
michael@0: 
michael@0: #include "base/logging.h"
michael@0: 
michael@0: namespace base {
michael@0: 
michael@0: // TimeDelta ------------------------------------------------------------------
michael@0: 
michael@0: int TimeDelta::InDays() const {
michael@0:   return static_cast<int>(delta_ / Time::kMicrosecondsPerDay);
michael@0: }
michael@0: 
michael@0: int TimeDelta::InHours() const {
michael@0:   return static_cast<int>(delta_ / Time::kMicrosecondsPerHour);
michael@0: }
michael@0: 
michael@0: int TimeDelta::InMinutes() const {
michael@0:   return static_cast<int>(delta_ / Time::kMicrosecondsPerMinute);
michael@0: }
michael@0: 
michael@0: double TimeDelta::InSecondsF() const {
michael@0:   return static_cast<double>(delta_) / Time::kMicrosecondsPerSecond;
michael@0: }
michael@0: 
michael@0: int64_t TimeDelta::InSeconds() const {
michael@0:   return delta_ / Time::kMicrosecondsPerSecond;
michael@0: }
michael@0: 
michael@0: double TimeDelta::InMillisecondsF() const {
michael@0:   return static_cast<double>(delta_) / Time::kMicrosecondsPerMillisecond;
michael@0: }
michael@0: 
michael@0: int64_t TimeDelta::InMilliseconds() const {
michael@0:   return delta_ / Time::kMicrosecondsPerMillisecond;
michael@0: }
michael@0: 
michael@0: int64_t TimeDelta::InMicroseconds() const {
michael@0:   return delta_;
michael@0: }
michael@0: 
michael@0: // Time -----------------------------------------------------------------------
michael@0: 
michael@0: // static
michael@0: Time Time::FromTimeT(time_t tt) {
michael@0:   if (tt == 0)
michael@0:     return Time();  // Preserve 0 so we can tell it doesn't exist.
michael@0:   return (tt * kMicrosecondsPerSecond) + kTimeTToMicrosecondsOffset;
michael@0: }
michael@0: 
michael@0: time_t Time::ToTimeT() const {
michael@0:   if (us_ == 0)
michael@0:     return 0;  // Preserve 0 so we can tell it doesn't exist.
michael@0:   return (us_ - kTimeTToMicrosecondsOffset) / kMicrosecondsPerSecond;
michael@0: }
michael@0: 
michael@0: // static
michael@0: Time Time::FromDoubleT(double dt) {
michael@0:   return (dt * static_cast<double>(kMicrosecondsPerSecond)) +
michael@0:       kTimeTToMicrosecondsOffset;
michael@0: }
michael@0: 
michael@0: double Time::ToDoubleT() const {
michael@0:   if (us_ == 0)
michael@0:     return 0;  // Preserve 0 so we can tell it doesn't exist.
michael@0:   return (static_cast<double>(us_ - kTimeTToMicrosecondsOffset) /
michael@0:           static_cast<double>(kMicrosecondsPerSecond));
michael@0: }
michael@0: 
michael@0: Time Time::LocalMidnight() const {
michael@0:   Exploded exploded;
michael@0:   LocalExplode(&exploded);
michael@0:   exploded.hour = 0;
michael@0:   exploded.minute = 0;
michael@0:   exploded.second = 0;
michael@0:   exploded.millisecond = 0;
michael@0:   return FromLocalExploded(exploded);
michael@0: }
michael@0: 
michael@0: // static
michael@0: bool Time::FromString(const wchar_t* time_string, Time* parsed_time) {
michael@0:   DCHECK((time_string != NULL) && (parsed_time != NULL));
michael@0:   std::string ascii_time_string = SysWideToUTF8(time_string);
michael@0:   if (ascii_time_string.length() == 0)
michael@0:     return false;
michael@0:   PRTime result_time = 0;
michael@0:   PRStatus result = PR_ParseTimeString(ascii_time_string.c_str(), PR_FALSE,
michael@0:                                        &result_time);
michael@0:   if (PR_SUCCESS != result)
michael@0:     return false;
michael@0:   result_time += kTimeTToMicrosecondsOffset;
michael@0:   *parsed_time = Time(result_time);
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: }  // namespace base