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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2016 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/time/time.h" | 5 #include "base/time/time.h" |
6 | 6 |
7 #include <CoreFoundation/CFDate.h> | 7 #include <CoreFoundation/CFDate.h> |
8 #include <CoreFoundation/CFTimeZone.h> | 8 #include <CoreFoundation/CFTimeZone.h> |
9 #include <mach/mach.h> | 9 #include <mach/mach.h> |
10 #include <mach/mach_time.h> | 10 #include <mach/mach_time.h> |
11 #include <stddef.h> | 11 #include <stddef.h> |
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177 kCFAllocatorDefault, kCFGregorianCalendar)); | 177 kCFAllocatorDefault, kCFGregorianCalendar)); |
178 CFCalendarSetTimeZone(gregorian, time_zone); | 178 CFCalendarSetTimeZone(gregorian, time_zone); |
179 CFAbsoluteTime absolute_time; | 179 CFAbsoluteTime absolute_time; |
180 // 'S' is not defined in componentDesc in Apple documentation, but can be | 180 // 'S' is not defined in componentDesc in Apple documentation, but can be |
181 // found at http://www.opensource.apple.com/source/CF/CF-855.17/CFCalendar.c | 181 // found at http://www.opensource.apple.com/source/CF/CF-855.17/CFCalendar.c |
182 CFCalendarComposeAbsoluteTime( | 182 CFCalendarComposeAbsoluteTime( |
183 gregorian, &absolute_time, "yMdHmsS", exploded.year, exploded.month, | 183 gregorian, &absolute_time, "yMdHmsS", exploded.year, exploded.month, |
184 exploded.day_of_month, exploded.hour, exploded.minute, exploded.second, | 184 exploded.day_of_month, exploded.hour, exploded.minute, exploded.second, |
185 exploded.millisecond); | 185 exploded.millisecond); |
186 CFAbsoluteTime seconds = absolute_time + kCFAbsoluteTimeIntervalSince1970; | 186 CFAbsoluteTime seconds = absolute_time + kCFAbsoluteTimeIntervalSince1970; |
187 return Time(static_cast<int64_t>(seconds * kMicrosecondsPerSecond) + | 187 |
188 kWindowsEpochDeltaMicroseconds); | 188 base::Time t_time = |
189 Time(static_cast<int64_t>(seconds * kMicrosecondsPerSecond) + | |
190 kWindowsEpochDeltaMicroseconds); | |
191 | |
192 // If |exploded.day_of_month| is set to 31 | |
193 // on a 28-30 day month, it will return the first day of the next month. | |
mmenke
2016/05/18 17:32:00
We should figure out what platforms this happens o
eroman
2016/05/18 19:35:17
In the case of our _posix implementation, the spec
mmenke
2016/05/18 20:11:32
That's a good point...I was mostly thinking (hopin
maksims (do not use this acc)
2016/05/19 09:57:20
What's then? Can you run trybots to see what envir
| |
194 // Thus round-trip the time and compare the initial |exploded| with | |
195 // |utc_to_exploded| time. | |
196 // If they are not same, return Time(0). | |
197 // Windows and Posix implementations return Time(0) on failure. | |
mmenke
2016/05/18 17:32:00
These last two sentences seem not to be needed.
maksims (do not use this acc)
2016/05/19 09:57:20
Done.
| |
198 base::Time::Exploded to_exploded = {0}; | |
Mark Mentovai
2016/05/18 17:42:49
No need to waste time {0}-initializing.
maksims (do not use this acc)
2016/05/19 09:57:20
Done.
| |
199 if (!is_local) | |
200 t_time.UTCExplode(&to_exploded); | |
201 else | |
202 t_time.LocalExplode(&to_exploded); | |
203 | |
204 return to_exploded != exploded ? Time(0) : t_time; | |
189 } | 205 } |
190 | 206 |
191 void Time::Explode(bool is_local, Exploded* exploded) const { | 207 void Time::Explode(bool is_local, Exploded* exploded) const { |
192 // Avoid rounding issues, by only putting the integral number of seconds | 208 // Avoid rounding issues, by only putting the integral number of seconds |
193 // (rounded towards -infinity) into a |CFAbsoluteTime| (which is a |double|). | 209 // (rounded towards -infinity) into a |CFAbsoluteTime| (which is a |double|). |
194 int64_t microsecond = us_ % kMicrosecondsPerSecond; | 210 int64_t microsecond = us_ % kMicrosecondsPerSecond; |
195 if (microsecond < 0) | 211 if (microsecond < 0) |
196 microsecond += kMicrosecondsPerSecond; | 212 microsecond += kMicrosecondsPerSecond; |
197 CFAbsoluteTime seconds = ((us_ - microsecond) / kMicrosecondsPerSecond) - | 213 CFAbsoluteTime seconds = ((us_ - microsecond) / kMicrosecondsPerSecond) - |
198 kWindowsEpochDeltaSeconds - | 214 kWindowsEpochDeltaSeconds - |
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246 return Clock::MAC_MACH_ABSOLUTE_TIME; | 262 return Clock::MAC_MACH_ABSOLUTE_TIME; |
247 #endif // defined(OS_IOS) | 263 #endif // defined(OS_IOS) |
248 } | 264 } |
249 | 265 |
250 // static | 266 // static |
251 ThreadTicks ThreadTicks::Now() { | 267 ThreadTicks ThreadTicks::Now() { |
252 return ThreadTicks(ComputeThreadTicks()); | 268 return ThreadTicks(ComputeThreadTicks()); |
253 } | 269 } |
254 | 270 |
255 } // namespace base | 271 } // namespace base |
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