aria2/src/TimerA2.cc

176 lines
3.8 KiB
C++

/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2010 Tatsuhiro Tsujikawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#include "TimerA2.h"
#include <cassert>
#include "util.h"
namespace aria2 {
Timer::Timer()
{
reset();
}
Timer::Timer(const Timer& timer):tv_(timer.tv_) {}
Timer::Timer(time_t sec)
{
reset(sec);
}
Timer::Timer(const struct timeval& tv):tv_(tv) {}
static bool useClockGettime()
{
static timespec ts;
static int r = clock_gettime(CLOCK_MONOTONIC, &ts);
return r == 0;
}
Timer& Timer::operator=(const Timer& timer)
{
if(this != &timer) {
tv_ = timer.tv_;
}
return *this;
}
bool Timer::operator<(const Timer& timer) const
{
return util::difftv(timer.tv_, tv_) > 0;
}
bool Timer::operator<=(const Timer& timer) const
{
return util::difftv(timer.tv_, tv_) >= 0;
}
bool Timer::operator>(const Timer& timer) const
{
return util::difftv(tv_, timer.tv_) > 0;
}
static timeval getCurrentTime()
{
timeval tv;
if(useClockGettime()) {
timespec ts;
int r = clock_gettime(CLOCK_MONOTONIC, &ts);
assert(r == 0);
tv.tv_sec = ts.tv_sec+2678400; // 1month offset(24*3600*31)
tv.tv_usec = ts.tv_nsec/1000;
} else {
gettimeofday(&tv, 0);
}
return tv;
}
void Timer::reset()
{
tv_ = getCurrentTime();
}
void Timer::reset(time_t sec)
{
tv_.tv_sec = sec;
tv_.tv_usec = 0;
}
bool Timer::elapsed(time_t sec) const
{
return
util::difftv(getCurrentTime(), tv_) >= static_cast<int64_t>(sec)*1000000;
}
bool Timer::elapsedInMillis(int64_t millis) const
{
return util::difftv(getCurrentTime(), tv_)/1000 >= millis;
}
time_t Timer::difference() const
{
return util::difftv(getCurrentTime(), tv_)/1000000;
}
time_t Timer::difference(const timeval& tv) const
{
return util::difftv(tv, tv_)/1000000;
}
int64_t Timer::differenceInMillis() const
{
return util::difftv(getCurrentTime(), tv_)/1000;
}
int64_t Timer::differenceInMillis(const timeval& tv) const
{
return util::difftv(tv, tv_)/1000;
}
bool Timer::isZero() const
{
return tv_.tv_sec == 0 && tv_.tv_usec == 0;
}
int64_t Timer::getTimeInMicros() const
{
return (int64_t)tv_.tv_sec*1000*1000+tv_.tv_usec;
}
int64_t Timer::getTimeInMillis() const
{
return (int64_t)tv_.tv_sec*1000+tv_.tv_usec/1000;
}
time_t Timer::getTime() const
{
return tv_.tv_sec;
}
void Timer::advance(time_t sec)
{
tv_.tv_sec += sec;
}
bool Timer::monotonicClock()
{
return useClockGettime();
}
} // namespace aria2