| /* |
| * Copyright (C) 1999-2000 Harri Porten (porten@kde.org) |
| * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. |
| * Copyright (C) 2009 Google Inc. All rights reserved. |
| * Copyright (C) 2010 Research In Motion Limited. All rights reserved. |
| * |
| * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| * |
| * The contents of this file are subject to the Mozilla Public License Version |
| * 1.1 (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * http://www.mozilla.org/MPL/ |
| * |
| * Software distributed under the License is distributed on an "AS IS" basis, |
| * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| * for the specific language governing rights and limitations under the |
| * License. |
| * |
| * The Original Code is Mozilla Communicator client code, released |
| * March 31, 1998. |
| * |
| * The Initial Developer of the Original Code is |
| * Netscape Communications Corporation. |
| * Portions created by the Initial Developer are Copyright (C) 1998 |
| * the Initial Developer. All Rights Reserved. |
| * |
| * Contributor(s): |
| * |
| * Alternatively, the contents of this file may be used under the terms of |
| * either of the GNU General Public License Version 2 or later (the "GPL"), |
| * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| * in which case the provisions of the GPL or the LGPL are applicable instead |
| * of those above. If you wish to allow use of your version of this file only |
| * under the terms of either the GPL or the LGPL, and not to allow others to |
| * use your version of this file under the terms of the MPL, indicate your |
| * decision by deleting the provisions above and replace them with the notice |
| * and other provisions required by the GPL or the LGPL. If you do not delete |
| * the provisions above, a recipient may use your version of this file under |
| * the terms of any one of the MPL, the GPL or the LGPL. |
| * |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_DATE_MATH_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_DATE_MATH_H_ |
| |
| #include <stdint.h> |
| #include <string.h> |
| |
| #include "base/optional.h" |
| #include "base/time/time.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| #include "third_party/blink/renderer/platform/wtf/wtf_export.h" |
| |
| namespace WTF { |
| |
| // Not really math related, but this is currently the only shared place to put |
| // these. |
| // |
| // TODO(tkent): Only blink::ParseDate() uses this function to parse HTTP |
| // header values. net::HTTPResponseHeaders::GetTimeValuedHeader() uses |
| // base::Time::FromUTCString() for the same purpose. We should consider |
| // switching to base::Time::FromUTCString() for consistency. |
| WTF_EXPORT base::Optional<base::Time> ParseDateFromNullTerminatedCharacters( |
| const char* date_string); |
| |
| // utcOffset: [-720,720]. |
| WTF_EXPORT String MakeRFC2822DateString(const base::Time date, int utc_offset); |
| |
| const char kWeekdayName[7][4] = {"Sun", "Mon", "Tue", "Wed", |
| "Thu", "Fri", "Sat"}; |
| const char kMonthName[12][4] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", |
| "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; |
| const char* const kMonthFullName[12] = { |
| "January", "February", "March", "April", "May", "June", |
| "July", "August", "September", "October", "November", "December"}; |
| |
| const double kMinutesPerHour = 60.0; |
| const double kSecondsPerMinute = 60.0; |
| const double kMsPerSecond = 1000.0; |
| const double kMsPerMinute = 60.0 * 1000.0; |
| const double kMsPerHour = 60.0 * 60.0 * 1000.0; |
| const double kMsPerDay = 24.0 * 60.0 * 60.0 * 1000.0; |
| |
| WTF_EXPORT bool IsLeapYear(int year); |
| |
| // Returns the number of days from 1970-01-01 to the specified date. |
| WTF_EXPORT double DateToDaysFrom1970(int year, int month, int day); |
| WTF_EXPORT int MsToYear(double ms); |
| WTF_EXPORT int DayInYear(int year, int month, int day); |
| WTF_EXPORT int DayInYear(double ms, int year); |
| WTF_EXPORT int MonthFromDayInYear(int day_in_year, bool leap_year); |
| WTF_EXPORT int DayInMonthFromDayInYear(int day_in_year, bool leap_year); |
| |
| // Returns a TimeDelta between the UNIX epoch in the local timezone and the |
| // specified time. |
| // |
| // For example, if the local timezone is PDT and the specified time represents |
| // "2019-08-09 13:00 PDT", this function returns a TimeDelta since |
| // "1970-01-01 00:00 PDT". |
| WTF_EXPORT base::TimeDelta ConvertToLocalTime(base::Time time); |
| |
| } // namespace WTF |
| |
| using WTF::IsLeapYear; |
| using WTF::DateToDaysFrom1970; |
| using WTF::DayInMonthFromDayInYear; |
| using WTF::DayInYear; |
| using WTF::kMinutesPerHour; |
| using WTF::MonthFromDayInYear; |
| using WTF::kMsPerDay; |
| using WTF::kMsPerHour; |
| using WTF::kMsPerMinute; |
| using WTF::kMsPerSecond; |
| using WTF::MsToYear; |
| using WTF::kSecondsPerMinute; |
| using WTF::ParseDateFromNullTerminatedCharacters; |
| using WTF::MakeRFC2822DateString; |
| using WTF::ConvertToLocalTime; |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_DATE_MATH_H_ |