125 lines
4.1 KiB
C++
125 lines
4.1 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2015 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#ifndef D_TIME_H
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#define D_TIME_H
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#include "common.h"
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#include <stdint.h>
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#include <string>
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#include "a2time.h"
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namespace aria2 {
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class Time {
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public:
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using Clock = std::chrono::system_clock;
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// The time value is initialized so that it represents the time at which
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// this object was created.
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Time();
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Time(const Time& time) = default;
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Time(Time&& time) = default;
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Time(time_t sec);
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Time& operator=(const Time& time) = default;
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Time& operator=(Time&& time) = default;
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bool operator<(const Time& time) const { return tp_ < time.tp_; }
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bool operator>(const Time& time) const { return time < *this; }
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bool operator<=(const Time& time) const { return !(time < *this); }
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bool operator>=(const Time& time) const { return !(*this < time); }
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// Makes this object's time value up to date.
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void reset();
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Clock::duration difference() const;
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Clock::duration difference(const Time& now) const;
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const Clock::time_point& getTime() const { return tp_; }
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void setTimeFromEpoch(time_t sec);
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time_t getTimeFromEpoch() const { return Clock::to_time_t(tp_); }
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template <typename duration> void advance(const duration& t) { tp_ += t; }
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bool good() const { return good_; }
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bool bad() const { return !good_; }
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static Time null() { return Time(0, false); }
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std::string toHTTPDate() const;
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// Currently timezone is assumed as GMT.
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static Time parse(const std::string& datetime, const std::string& format);
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// Currently timezone is assumed to GMT.
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static Time parseRFC1123(const std::string& datetime);
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// Like parseRFC1123, but only accepts trailing "+0000" instead of
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// last 3 letters "GMT".
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static Time parseRFC1123Alt(const std::string& datetime);
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// Currently timezone is assumed to GMT.
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static Time parseRFC850(const std::string& datetime);
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// Currently timezone is assumed to GMT. Basically the format is
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// RFC850, but year part is 4digit, eg 2008 This format appears in
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// original Netscape's PERSISTENT CLIENT STATE HTTP COOKIES
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// Specification. http://curl.haxx.se/rfc/cookie_spec.html
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static Time parseRFC850Ext(const std::string& datetime);
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// Currently timezone is assumed to GMT.
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// ANSI C's asctime() format
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static Time parseAsctime(const std::string& datetime);
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// Try parseRFC1123, parseRFC850, parseAsctime, parseRFC850Ext in
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// that order and returns the first "good" Time object returned by
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// these functions.
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static Time parseHTTPDate(const std::string& datetime);
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private:
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Time(time_t t, bool good) : tp_(Clock::from_time_t(t)), good_(good) {}
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Clock::time_point tp_;
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bool good_;
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};
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} // namespace aria2
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#endif // D_TIME_H
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