Move timing files into base/time, install forwarding headers.

base/time.cc

-// 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/time.h"
-
-#include <math.h>
-#if defined(OS_WIN)
-#include <float.h>
-#endif
-
-#include <limits>
-
-#include "base/strings/sys_string_conversions.h"
-#include "base/third_party/nspr/prtime.h"
-
-#include "base/logging.h"
-
-namespace base {
-
-namespace {
-#if defined(OS_WIN)
-inline bool isnan(double num) { return !!_isnan(num); }
-#endif
-}
-
-// TimeDelta ------------------------------------------------------------------
-
-int TimeDelta::InDays() const {
-  return static_cast<int>(delta_ / Time::kMicrosecondsPerDay);
-}
-
-int TimeDelta::InHours() const {
-  return static_cast<int>(delta_ / Time::kMicrosecondsPerHour);
-}
-
-int TimeDelta::InMinutes() const {
-  return static_cast<int>(delta_ / Time::kMicrosecondsPerMinute);
-}
-
-double TimeDelta::InSecondsF() const {
-  return static_cast<double>(delta_) / Time::kMicrosecondsPerSecond;
-}
-
-int64 TimeDelta::InSeconds() const {
-  return delta_ / Time::kMicrosecondsPerSecond;
-}
-
-double TimeDelta::InMillisecondsF() const {
-  return static_cast<double>(delta_) / Time::kMicrosecondsPerMillisecond;
-}
-
-int64 TimeDelta::InMilliseconds() const {
-  return delta_ / Time::kMicrosecondsPerMillisecond;
-}
-
-int64 TimeDelta::InMillisecondsRoundedUp() const {
-  return (delta_ + Time::kMicrosecondsPerMillisecond - 1) /
-      Time::kMicrosecondsPerMillisecond;
-}
-
-int64 TimeDelta::InMicroseconds() const {
-  return delta_;
-}
-
-// Time -----------------------------------------------------------------------
-
-// static
-Time Time::Max() {
-  return Time(std::numeric_limits<int64>::max());
-}
-
-// static
-Time Time::FromTimeT(time_t tt) {
-  if (tt == 0)
-    return Time();  // Preserve 0 so we can tell it doesn't exist.
-  if (tt == std::numeric_limits<time_t>::max())
-    return Max();
-  return Time((tt * kMicrosecondsPerSecond) + kTimeTToMicrosecondsOffset);
-}
-
-time_t Time::ToTimeT() const {
-  if (is_null())
-    return 0;  // Preserve 0 so we can tell it doesn't exist.
-  if (is_max()) {
-    // Preserve max without offset to prevent overflow.
-    return std::numeric_limits<time_t>::max();
-  }
-  if (std::numeric_limits<int64>::max() - kTimeTToMicrosecondsOffset <= us_) {
-    DLOG(WARNING) << "Overflow when converting base::Time with internal " <<
-                     "value " << us_ << " to time_t.";
-    return std::numeric_limits<time_t>::max();
-  }
-  return (us_ - kTimeTToMicrosecondsOffset) / kMicrosecondsPerSecond;
-}
-
-// static
-Time Time::FromDoubleT(double dt) {
-  if (dt == 0 || isnan(dt))
-    return Time();  // Preserve 0 so we can tell it doesn't exist.
-  if (dt == std::numeric_limits<double>::max())
-    return Max();
-  return Time(static_cast<int64>((dt *
-                                  static_cast<double>(kMicrosecondsPerSecond)) +
-                                 kTimeTToMicrosecondsOffset));
-}
-
-double Time::ToDoubleT() const {
-  if (is_null())
-    return 0;  // Preserve 0 so we can tell it doesn't exist.
-  if (is_max()) {
-    // Preserve max without offset to prevent overflow.
-    return std::numeric_limits<double>::max();
-  }
-  return (static_cast<double>(us_ - kTimeTToMicrosecondsOffset) /
-          static_cast<double>(kMicrosecondsPerSecond));
-}
-
-#if defined(OS_POSIX)
-// static
-Time Time::FromTimeSpec(const timespec& ts) {
-  return FromDoubleT(ts.tv_sec +
-                     static_cast<double>(ts.tv_nsec) /
-                         base::Time::kNanosecondsPerSecond);
-}
-#endif
-
-// static
-Time Time::FromJsTime(double ms_since_epoch) {
-  // The epoch is a valid time, so this constructor doesn't interpret
-  // 0 as the null time.
-  if (ms_since_epoch == std::numeric_limits<double>::max())
-    return Max();
-  return Time(static_cast<int64>(ms_since_epoch * kMicrosecondsPerMillisecond) +
-              kTimeTToMicrosecondsOffset);
-}
-
-double Time::ToJsTime() const {
-  if (is_null()) {
-    // Preserve 0 so the invalid result doesn't depend on the platform.
-    return 0;
-  }
-  if (is_max()) {
-    // Preserve max without offset to prevent overflow.
-    return std::numeric_limits<double>::max();
-  }
-  return (static_cast<double>(us_ - kTimeTToMicrosecondsOffset) /
-          kMicrosecondsPerMillisecond);
-}
-
-// static
-Time Time::UnixEpoch() {
-  Time time;
-  time.us_ = kTimeTToMicrosecondsOffset;
-  return time;
-}
-
-Time Time::LocalMidnight() const {
-  Exploded exploded;
-  LocalExplode(&exploded);
-  exploded.hour = 0;
-  exploded.minute = 0;
-  exploded.second = 0;
-  exploded.millisecond = 0;
-  return FromLocalExploded(exploded);
-}
-
-// static
-bool Time::FromStringInternal(const char* time_string,
-                              bool is_local,
-                              Time* parsed_time) {
-  DCHECK((time_string != NULL) && (parsed_time != NULL));
-
-  if (time_string[0] == '\0')
-    return false;
-
-  PRTime result_time = 0;
-  PRStatus result = PR_ParseTimeString(time_string,
-                                       is_local ? PR_FALSE : PR_TRUE,
-                                       &result_time);
-  if (PR_SUCCESS != result)
-    return false;
-
-  result_time += kTimeTToMicrosecondsOffset;
-  *parsed_time = Time(result_time);
-  return true;
-}
-
-// Time::Exploded -------------------------------------------------------------
-
-inline bool is_in_range(int value, int lo, int hi) {
-  return lo <= value && value <= hi;
-}
-
-bool Time::Exploded::HasValidValues() const {
-  return is_in_range(month, 1, 12) &&
-         is_in_range(day_of_week, 0, 6) &&
-         is_in_range(day_of_month, 1, 31) &&
-         is_in_range(hour, 0, 23) &&
-         is_in_range(minute, 0, 59) &&
-         is_in_range(second, 0, 60) &&
-         is_in_range(millisecond, 0, 999);
-}
-
-}  // namespace base