time.cc revision 12334
12SN/A/* 21762SN/A * Copyright (c) 2003-2005 The Regents of The University of Michigan 32SN/A * All rights reserved. 42SN/A * 52SN/A * Redistribution and use in source and binary forms, with or without 62SN/A * modification, are permitted provided that the following conditions are 72SN/A * met: redistributions of source code must retain the above copyright 82SN/A * notice, this list of conditions and the following disclaimer; 92SN/A * redistributions in binary form must reproduce the above copyright 102SN/A * notice, this list of conditions and the following disclaimer in the 112SN/A * documentation and/or other materials provided with the distribution; 122SN/A * neither the name of the copyright holders nor the names of its 132SN/A * contributors may be used to endorse or promote products derived from 142SN/A * this software without specific prior written permission. 152SN/A * 162SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Nathan Binkert 292SN/A */ 302SN/A 3111793Sbrandon.potter@amd.com#include "base/time.hh" 3211793Sbrandon.potter@amd.com 338869SAli.Saidi@ARM.com#include <cstdlib> 348869SAli.Saidi@ARM.com#include <ctime> 352SN/A#include <iostream> 367840Snate@binkert.org#include <sstream> 372SN/A 3812334Sgabeblack@google.com#include "base/logging.hh" 397840Snate@binkert.org#include "config/use_posix_clock.hh" 407862Sgblack@eecs.umich.edu#include "sim/core.hh" 417870Sgblack@eecs.umich.edu#include "sim/serialize.hh" 422SN/A 432SN/Ausing namespace std; 442SN/A 457840Snate@binkert.orgvoid 467840Snate@binkert.orgTime::_set(bool monotonic) 472SN/A{ 487840Snate@binkert.org#if USE_POSIX_CLOCK 497840Snate@binkert.org ::clock_gettime(monotonic ? CLOCK_MONOTONIC : CLOCK_REALTIME, &_time); 507840Snate@binkert.org#else 51400SN/A timeval tv; 527840Snate@binkert.org ::gettimeofday(&tv, NULL); 537840Snate@binkert.org operator=(tv); 547840Snate@binkert.org#endif 55400SN/A} 56400SN/A 577862Sgblack@eecs.umich.eduvoid 587862Sgblack@eecs.umich.eduTime::setTick(Tick ticks) 597862Sgblack@eecs.umich.edu{ 607862Sgblack@eecs.umich.edu uint64_t nsecs = ticks / SimClock::Int::ns; 617862Sgblack@eecs.umich.edu set(nsecs / NSEC_PER_SEC, nsecs % NSEC_PER_SEC); 627862Sgblack@eecs.umich.edu} 637862Sgblack@eecs.umich.edu 647862Sgblack@eecs.umich.eduTick 657862Sgblack@eecs.umich.eduTime::getTick() const 667862Sgblack@eecs.umich.edu{ 677862Sgblack@eecs.umich.edu return (nsec() + sec() * NSEC_PER_SEC) * SimClock::Int::ns; 687862Sgblack@eecs.umich.edu} 697862Sgblack@eecs.umich.edu 70400SN/Astring 717840Snate@binkert.orgTime::date(const string &format) const 72400SN/A{ 737840Snate@binkert.org time_t sec = this->sec(); 74400SN/A char buf[256]; 75400SN/A 76400SN/A if (format.empty()) { 773918Ssaidi@eecs.umich.edu#ifdef __SUNPRO_CC 787840Snate@binkert.org ctime_r(&sec, buf, sizeof(buf)); 793918Ssaidi@eecs.umich.edu#else 80400SN/A ctime_r(&sec, buf); 813918Ssaidi@eecs.umich.edu#endif 82400SN/A buf[24] = '\0'; 83400SN/A return buf; 842SN/A } 852SN/A 86400SN/A struct tm *tm = localtime(&sec); 87400SN/A strftime(buf, sizeof(buf), format.c_str(), tm); 88400SN/A return buf; 89400SN/A} 902SN/A 917840Snate@binkert.orgstring 927840Snate@binkert.orgTime::time() const 93400SN/A{ 947840Snate@binkert.org double time = double(*this); 957840Snate@binkert.org double secs = fmod(time, 60.0); 967840Snate@binkert.org double all_mins = floor(time / 60.0); 977840Snate@binkert.org double mins = fmod(all_mins, 60.0); 987840Snate@binkert.org double hours = floor(all_mins / 60.0); 997840Snate@binkert.org 1007840Snate@binkert.org stringstream str; 1017840Snate@binkert.org 1027840Snate@binkert.org if (hours > 0.0) { 1037840Snate@binkert.org if (hours < 10.0) 1047840Snate@binkert.org str << '0'; 1057840Snate@binkert.org str << hours << ':'; 1067840Snate@binkert.org } 1077840Snate@binkert.org 1087840Snate@binkert.org if (mins > 0.0) { 1097840Snate@binkert.org if (mins < 10.0) 1107840Snate@binkert.org str << '0'; 1117840Snate@binkert.org str << mins << ':'; 1127840Snate@binkert.org } 1137840Snate@binkert.org 1147840Snate@binkert.org if (secs < 10.0 && !str.str().empty()) 1157840Snate@binkert.org str << '0'; 1167840Snate@binkert.org str << secs; 1177840Snate@binkert.org 1187840Snate@binkert.org return str.str(); 119400SN/A} 1202SN/A 1217840Snate@binkert.orgvoid 12210905Sandreas.sandberg@arm.comTime::serialize(const std::string &base, CheckpointOut &cp) const 1237870Sgblack@eecs.umich.edu{ 12410905Sandreas.sandberg@arm.com paramOut(cp, base + ".sec", sec()); 12510905Sandreas.sandberg@arm.com paramOut(cp, base + ".nsec", nsec()); 1267870Sgblack@eecs.umich.edu} 1277870Sgblack@eecs.umich.edu 1287870Sgblack@eecs.umich.eduvoid 12910905Sandreas.sandberg@arm.comTime::unserialize(const std::string &base, CheckpointIn &cp) 1307870Sgblack@eecs.umich.edu{ 1317870Sgblack@eecs.umich.edu time_t secs; 1327870Sgblack@eecs.umich.edu time_t nsecs; 13310905Sandreas.sandberg@arm.com paramIn(cp, base + ".sec", secs); 13410905Sandreas.sandberg@arm.com paramIn(cp, base + ".nsec", nsecs); 1357870Sgblack@eecs.umich.edu sec(secs); 1367870Sgblack@eecs.umich.edu nsec(nsecs); 1377870Sgblack@eecs.umich.edu} 1387870Sgblack@eecs.umich.edu 1397870Sgblack@eecs.umich.eduvoid 1407840Snate@binkert.orgsleep(const Time &time) 141400SN/A{ 1427840Snate@binkert.org timespec ts = time; 1437840Snate@binkert.org 1447840Snate@binkert.org#if USE_POSIX_CLOCK 1457840Snate@binkert.org clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL); 1467840Snate@binkert.org#else 1477840Snate@binkert.org nanosleep(&ts, NULL); 1487840Snate@binkert.org#endif 149400SN/A} 1508869SAli.Saidi@ARM.com 1518869SAli.Saidi@ARM.comtime_t 1528869SAli.Saidi@ARM.commkutctime(struct tm *time) 1538869SAli.Saidi@ARM.com{ 15410531Sandreas.hansson@arm.com // get the current timezone 15510531Sandreas.hansson@arm.com char *tz = getenv("TZ"); 15610531Sandreas.hansson@arm.com 15710531Sandreas.hansson@arm.com // copy the string as the pointer gets invalidated when updating 15810531Sandreas.hansson@arm.com // the environment 15910531Sandreas.hansson@arm.com if (tz) { 16010531Sandreas.hansson@arm.com tz = strdup(tz); 16110531Sandreas.hansson@arm.com if (!tz) { 16210531Sandreas.hansson@arm.com fatal("Failed to reserve memory for UTC time conversion\n"); 16310531Sandreas.hansson@arm.com } 16410531Sandreas.hansson@arm.com } 16510531Sandreas.hansson@arm.com 16610531Sandreas.hansson@arm.com // change to UTC and get the time 16710531Sandreas.hansson@arm.com setenv("TZ", "", 1); 16810531Sandreas.hansson@arm.com tzset(); 16910531Sandreas.hansson@arm.com time_t ret = mktime(time); 17010531Sandreas.hansson@arm.com 17110531Sandreas.hansson@arm.com // restore the timezone again 17210531Sandreas.hansson@arm.com if (tz) { 17310531Sandreas.hansson@arm.com setenv("TZ", tz, 1); 17410531Sandreas.hansson@arm.com free(tz); 17510531Sandreas.hansson@arm.com } else { 17610531Sandreas.hansson@arm.com unsetenv("TZ"); 17710531Sandreas.hansson@arm.com } 17810531Sandreas.hansson@arm.com tzset(); 17910531Sandreas.hansson@arm.com 18010531Sandreas.hansson@arm.com return ret; 1818869SAli.Saidi@ARM.com} 1828869SAli.Saidi@ARM.com 183