146 lines
3.7 KiB
C++
146 lines
3.7 KiB
C++
/*
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* Copyright (c) 2003-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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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 are
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* met: 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 the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Nathan Binkert
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*/
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#include <iostream>
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#include <sstream>
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#include "base/time.hh"
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#include "config/use_posix_clock.hh"
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#include "sim/core.hh"
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#include "sim/serialize.hh"
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using namespace std;
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void
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Time::_set(bool monotonic)
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{
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#if USE_POSIX_CLOCK
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::clock_gettime(monotonic ? CLOCK_MONOTONIC : CLOCK_REALTIME, &_time);
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#else
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timeval tv;
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::gettimeofday(&tv, NULL);
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operator=(tv);
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#endif
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}
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void
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Time::setTick(Tick ticks)
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{
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uint64_t nsecs = ticks / SimClock::Int::ns;
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set(nsecs / NSEC_PER_SEC, nsecs % NSEC_PER_SEC);
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}
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Tick
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Time::getTick() const
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{
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return (nsec() + sec() * NSEC_PER_SEC) * SimClock::Int::ns;
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}
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string
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Time::date(const string &format) const
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{
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time_t sec = this->sec();
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char buf[256];
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if (format.empty()) {
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#ifdef __SUNPRO_CC
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ctime_r(&sec, buf, sizeof(buf));
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#else
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ctime_r(&sec, buf);
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#endif
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buf[24] = '\0';
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return buf;
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}
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struct tm *tm = localtime(&sec);
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strftime(buf, sizeof(buf), format.c_str(), tm);
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return buf;
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}
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string
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Time::time() const
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{
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double time = double(*this);
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double secs = fmod(time, 60.0);
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double all_mins = floor(time / 60.0);
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double mins = fmod(all_mins, 60.0);
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double hours = floor(all_mins / 60.0);
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stringstream str;
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if (hours > 0.0) {
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if (hours < 10.0)
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str << '0';
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str << hours << ':';
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}
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if (mins > 0.0) {
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if (mins < 10.0)
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str << '0';
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str << mins << ':';
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}
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if (secs < 10.0 && !str.str().empty())
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str << '0';
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str << secs;
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return str.str();
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}
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void
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Time::serialize(const std::string &base, ostream &os)
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{
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paramOut(os, base + ".sec", sec());
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paramOut(os, base + ".nsec", nsec());
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}
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void
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Time::unserialize(const std::string &base, Checkpoint *cp,
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const string §ion)
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{
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time_t secs;
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time_t nsecs;
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paramIn(cp, section, base + ".sec", secs);
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paramIn(cp, section, base + ".nsec", nsecs);
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sec(secs);
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nsec(nsecs);
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}
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void
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sleep(const Time &time)
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{
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timespec ts = time;
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#if USE_POSIX_CLOCK
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clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL);
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#else
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nanosleep(&ts, NULL);
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#endif
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}
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