359 lines
10 KiB
C++
359 lines
10 KiB
C++
/*
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Copyright (c) 2007, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TORRENT_TIME_HPP_INCLUDED
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#define TORRENT_TIME_HPP_INCLUDED
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#ifndef _WIN32
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#include <unistd.h>
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#endif
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#if (!defined (__MACH__) && !defined (_WIN32) && !defined(_POSIX_MONOTONIC_CLOCK) || _POSIX_MONOTONIC_CLOCK < 0) || defined (TORRENT_USE_BOOST_DATE_TIME)
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#include <boost/date_time/posix_time/posix_time.hpp>
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namespace libtorrent
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{
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typedef boost::posix_time::ptime ptime;
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typedef boost::posix_time::time_duration time_duration;
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inline ptime time_now()
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{ return boost::posix_time::microsec_clock::universal_time(); }
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inline ptime min_time()
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{ return boost::posix_time::ptime(boost::posix_time::min_date_time); }
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inline ptime max_time()
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{ return boost::posix_time::ptime(boost::posix_time::max_date_time); }
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inline time_duration seconds(int s) { return boost::posix_time::seconds(s); }
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inline time_duration milliseconds(int s) { return boost::posix_time::milliseconds(s); }
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inline time_duration microsec(int s) { return boost::posix_time::microsec(s); }
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inline time_duration minutes(int s) { return boost::posix_time::minutes(s); }
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inline time_duration hours(int s) { return boost::posix_time::hours(s); }
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inline int total_seconds(time_duration td)
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{ return td.total_seconds(); }
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inline int total_milliseconds(time_duration td)
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{ return td.total_milliseconds(); }
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inline boost::int64_t total_microseconds(time_duration td)
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{ return td.total_microseconds(); }
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}
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#else
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#include <asio/time_traits.hpp>
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#include <boost/date_time/posix_time/posix_time.hpp>
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#include <boost/cstdint.hpp>
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namespace libtorrent
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{
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// libtorrent time_duration type
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struct time_duration
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{
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time_duration() {}
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explicit time_duration(boost::int64_t d) : diff(d) {}
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boost::int64_t diff;
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};
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inline bool is_negative(time_duration dt) { return dt.diff < 0; }
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inline bool operator<(time_duration lhs, time_duration rhs)
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{ return lhs.diff < rhs.diff; }
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inline bool operator>(time_duration lhs, time_duration rhs)
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{ return lhs.diff > rhs.diff; }
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// libtorrent time type
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struct ptime
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{
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ptime() {}
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explicit ptime(boost::int64_t t): time(t) {}
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boost::int64_t time;
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};
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inline bool operator>(ptime lhs, ptime rhs)
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{ return lhs.time > rhs.time; }
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inline bool operator>=(ptime lhs, ptime rhs)
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{ return lhs.time >= rhs.time; }
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inline bool operator<=(ptime lhs, ptime rhs)
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{ return lhs.time <= rhs.time; }
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inline bool operator<(ptime lhs, ptime rhs)
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{ return lhs.time < rhs.time; }
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inline bool operator!=(ptime lhs, ptime rhs)
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{ return lhs.time != rhs.time;}
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inline bool operator==(ptime lhs, ptime rhs)
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{ return lhs.time == rhs.time;}
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inline time_duration operator-(ptime lhs, ptime rhs)
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{ return time_duration(lhs.time - rhs.time); }
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inline ptime operator+(ptime lhs, time_duration rhs)
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{ return ptime(lhs.time + rhs.diff); }
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inline ptime operator+(time_duration lhs, ptime rhs)
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{ return ptime(rhs.time + lhs.diff); }
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inline ptime operator-(ptime lhs, time_duration rhs)
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{ return ptime(lhs.time - rhs.diff); }
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ptime time_now();
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inline ptime min_time() { return ptime(0); }
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inline ptime max_time() { return ptime((std::numeric_limits<boost::int64_t>::max)()); }
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int total_seconds(time_duration td);
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int total_milliseconds(time_duration td);
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boost::int64_t total_microseconds(time_duration td);
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}
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// asio time_traits
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namespace asio
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{
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template<>
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struct time_traits<libtorrent::ptime>
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{
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typedef libtorrent::ptime time_type;
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typedef libtorrent::time_duration duration_type;
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static time_type now()
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{ return time_type(libtorrent::time_now()); }
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static time_type add(time_type t, duration_type d)
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{ return time_type(t.time + d.diff);}
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static duration_type subtract(time_type t1, time_type t2)
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{ return duration_type(t1 - t2); }
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static bool less_than(time_type t1, time_type t2)
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{ return t1 < t2; }
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static boost::posix_time::time_duration to_posix_duration(
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duration_type d)
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{ return boost::posix_time::microseconds(libtorrent::total_microseconds(d)); }
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};
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}
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#if defined(__MACH__)
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#include <mach/mach_time.h>
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#include <boost/cstdint.hpp>
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// high precision timer for darwin intel and ppc
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namespace libtorrent
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{
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namespace aux
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{
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inline boost::int64_t absolutetime_to_microseconds(boost::int64_t at)
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{
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static mach_timebase_info_data_t timebase_info = {0,0};
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if (timebase_info.denom == 0)
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mach_timebase_info(&timebase_info);
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// make sure we don't overflow
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assert((at >= 0 && at >= at / 1000 * timebase_info.numer / timebase_info.denom)
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|| (at < 0 && at < at / 1000 * timebase_info.numer / timebase_info.denom));
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return at / 1000 * timebase_info.numer / timebase_info.denom;
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}
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inline boost::int64_t microseconds_to_absolutetime(boost::int64_t ms)
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{
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static mach_timebase_info_data_t timebase_info = {0,0};
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if (timebase_info.denom == 0)
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{
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mach_timebase_info(&timebase_info);
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assert(timebase_info.numer > 0);
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assert(timebase_info.denom > 0);
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}
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// make sure we don't overflow
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assert((ms >= 0 && ms <= ms * timebase_info.denom / timebase_info.numer * 1000)
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|| (ms < 0 && ms > ms * timebase_info.denom / timebase_info.numer * 1000));
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return ms * timebase_info.denom / timebase_info.numer * 1000;
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}
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}
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inline int total_seconds(time_duration td)
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{
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return aux::absolutetime_to_microseconds(td.diff)
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/ 1000000;
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}
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inline int total_milliseconds(time_duration td)
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{
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return aux::absolutetime_to_microseconds(td.diff)
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/ 1000;
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}
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inline boost::int64_t total_microseconds(time_duration td)
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{
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return aux::absolutetime_to_microseconds(td.diff);
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}
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inline ptime time_now() { return ptime(mach_absolute_time()); }
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inline time_duration microsec(boost::int64_t s)
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{
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return time_duration(aux::microseconds_to_absolutetime(s));
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}
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inline time_duration milliseconds(boost::int64_t s)
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{
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return time_duration(aux::microseconds_to_absolutetime(s * 1000));
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}
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inline time_duration seconds(boost::int64_t s)
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{
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return time_duration(aux::microseconds_to_absolutetime(s * 1000000));
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}
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inline time_duration minutes(boost::int64_t s)
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{
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return time_duration(aux::microseconds_to_absolutetime(s * 1000000 * 60));
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}
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inline time_duration hours(boost::int64_t s)
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{
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return time_duration(aux::microseconds_to_absolutetime(s * 1000000 * 60 * 60));
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}
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}
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#elif defined(_WIN32)
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <Windows.h>
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namespace libtorrent
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{
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namespace aux
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{
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inline boost::int64_t performance_counter_to_microseconds(boost::int64_t pc)
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{
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static LARGE_INTEGER performace_counter_frequency = {0,0};
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if (performace_counter_frequency.QuadPart == 0)
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QueryPerformanceFrequency(&performace_counter_frequency);
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return pc * 1000000 / performace_counter_frequency.QuadPart;
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}
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inline boost::int64_t microseconds_to_performance_counter(boost::int64_t ms)
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{
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static LARGE_INTEGER performace_counter_frequency = {0,0};
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if (performace_counter_frequency.QuadPart == 0)
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QueryPerformanceFrequency(&performace_counter_frequency);
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return ms * performace_counter_frequency.QuadPart / 1000000;
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}
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}
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inline int total_seconds(time_duration td)
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{
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return aux::performance_counter_to_microseconds(td.diff)
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/ 1000000;
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}
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inline int total_milliseconds(time_duration td)
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{
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return aux::performance_counter_to_microseconds(td.diff)
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/ 1000;
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}
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inline boost::int64_t total_microseconds(time_duration td)
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{
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return aux::performance_counter_to_microseconds(td.diff);
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}
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inline ptime time_now()
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{
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LARGE_INTEGER now;
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QueryPerformanceCounter(&now);
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return ptime(now.QuadPart);
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}
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inline time_duration microsec(boost::int64_t s)
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{
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return time_duration(aux::microseconds_to_performance_counter(s));
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}
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inline time_duration milliseconds(boost::int64_t s)
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{
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return time_duration(aux::microseconds_to_performance_counter(
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s * 1000));
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}
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inline time_duration seconds(boost::int64_t s)
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{
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return time_duration(aux::microseconds_to_performance_counter(
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s * 1000000));
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}
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inline time_duration minutes(boost::int64_t s)
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{
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return time_duration(aux::microseconds_to_performance_counter(
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s * 1000000 * 60));
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}
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inline time_duration hours(boost::int64_t s)
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{
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return time_duration(aux::microseconds_to_performance_counter(
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s * 1000000 * 60 * 60));
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}
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}
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#elif defined(_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
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#include <time.h>
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namespace libtorrent
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{
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inline int total_seconds(time_duration td)
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{
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return td.diff / 1000000;
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}
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inline int total_milliseconds(time_duration td)
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{
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return td.diff / 1000;
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}
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inline boost::int64_t total_microseconds(time_duration td)
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{
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return td.diff;
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}
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inline ptime time_now()
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{
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timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return ptime(boost::int64_t(ts.tv_sec) + ts.tv_nsec / 1000);
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}
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inline time_duration microsec(boost::int64_t s)
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{
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return time_duration(s);
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}
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inline time_duration milliseconds(boost::int64_t s)
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{
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return time_duration(s * 1000);
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}
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inline time_duration seconds(boost::int64_t s)
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{
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return time_duration(s * 1000000);
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}
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inline time_duration minutes(boost::int64_t s)
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{
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return time_duration(s * 1000000 * 60);
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}
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inline time_duration hours(boost::int64_t s)
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{
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return time_duration(s * 1000000 * 60 * 60);
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}
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}
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#endif
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#endif
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#endif
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