time.cc revision 8869
1720SN/A/* 21762SN/A * Copyright (c) 2003-2005 The Regents of The University of Michigan 3720SN/A * All rights reserved. 4720SN/A * 5720SN/A * Redistribution and use in source and binary forms, with or without 6720SN/A * modification, are permitted provided that the following conditions are 7720SN/A * met: redistributions of source code must retain the above copyright 8720SN/A * notice, this list of conditions and the following disclaimer; 9720SN/A * redistributions in binary form must reproduce the above copyright 10720SN/A * notice, this list of conditions and the following disclaimer in the 11720SN/A * documentation and/or other materials provided with the distribution; 12720SN/A * neither the name of the copyright holders nor the names of its 13720SN/A * contributors may be used to endorse or promote products derived from 14720SN/A * this software without specific prior written permission. 15720SN/A * 16720SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17720SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18720SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19720SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20720SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21720SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22720SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23720SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24720SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25720SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26720SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Nathan Binkert 292665Ssaidi@eecs.umich.edu */ 30720SN/A 31720SN/A#include <cstdlib> 322518SN/A#include <ctime> 332683Sktlim@umich.edu#include <iostream> 341070SN/A#include <sstream> 352518SN/A 362518SN/A#include "base/time.hh" 37720SN/A#include "config/use_posix_clock.hh" 382107SN/A#include "sim/core.hh" 392107SN/A#include "sim/serialize.hh" 40720SN/A 412680Sktlim@umich.eduusing namespace std; 42720SN/A 432680Sktlim@umich.eduvoid 44720SN/ATime::_set(bool monotonic) 45720SN/A{ 462680Sktlim@umich.edu#if USE_POSIX_CLOCK 47720SN/A ::clock_gettime(monotonic ? CLOCK_MONOTONIC : CLOCK_REALTIME, &_time); 482680Sktlim@umich.edu#else 492680Sktlim@umich.edu timeval tv; 502518SN/A ::gettimeofday(&tv, NULL); 512680Sktlim@umich.edu operator=(tv); 52720SN/A#endif 532680Sktlim@umich.edu} 54720SN/A 552518SN/Avoid 56720SN/ATime::setTick(Tick ticks) 57720SN/A{ 58720SN/A uint64_t nsecs = ticks / SimClock::Int::ns; 591885SN/A set(nsecs / NSEC_PER_SEC, nsecs % NSEC_PER_SEC); 601885SN/A} 611885SN/A 62720SN/ATick 63720SN/ATime::getTick() const 64720SN/A{ 65720SN/A return (nsec() + sec() * NSEC_PER_SEC) * SimClock::Int::ns; 662680Sktlim@umich.edu} 67720SN/A 682680Sktlim@umich.edustring 69720SN/ATime::date(const string &format) const 70720SN/A{ 712680Sktlim@umich.edu time_t sec = this->sec(); 721070SN/A char buf[256]; 73720SN/A 741070SN/A if (format.empty()) { 752680Sktlim@umich.edu#ifdef __SUNPRO_CC 761070SN/A ctime_r(&sec, buf, sizeof(buf)); 772680Sktlim@umich.edu#else 782680Sktlim@umich.edu ctime_r(&sec, buf); 792680Sktlim@umich.edu#endif 801096SN/A buf[24] = '\0'; 81720SN/A return buf; 821082SN/A } 831082SN/A 842680Sktlim@umich.edu struct tm *tm = localtime(&sec); 851082SN/A strftime(buf, sizeof(buf), format.c_str(), tm); 862680Sktlim@umich.edu return buf; 872680Sktlim@umich.edu} 881082SN/A 891082SN/Astring 901082SN/ATime::time() const 912680Sktlim@umich.edu{ 921082SN/A double time = double(*this); 931082SN/A double secs = fmod(time, 60.0); 941082SN/A double all_mins = floor(time / 60.0); 952680Sktlim@umich.edu double mins = fmod(all_mins, 60.0); 962680Sktlim@umich.edu double hours = floor(all_mins / 60.0); 971082SN/A 98 stringstream str; 99 100 if (hours > 0.0) { 101 if (hours < 10.0) 102 str << '0'; 103 str << hours << ':'; 104 } 105 106 if (mins > 0.0) { 107 if (mins < 10.0) 108 str << '0'; 109 str << mins << ':'; 110 } 111 112 if (secs < 10.0 && !str.str().empty()) 113 str << '0'; 114 str << secs; 115 116 return str.str(); 117} 118 119void 120Time::serialize(const std::string &base, ostream &os) 121{ 122 paramOut(os, base + ".sec", sec()); 123 paramOut(os, base + ".nsec", nsec()); 124} 125 126void 127Time::unserialize(const std::string &base, Checkpoint *cp, 128 const string §ion) 129{ 130 time_t secs; 131 time_t nsecs; 132 paramIn(cp, section, base + ".sec", secs); 133 paramIn(cp, section, base + ".nsec", nsecs); 134 sec(secs); 135 nsec(nsecs); 136} 137 138void 139sleep(const Time &time) 140{ 141 timespec ts = time; 142 143#if USE_POSIX_CLOCK 144 clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL); 145#else 146 nanosleep(&ts, NULL); 147#endif 148} 149 150time_t 151mkutctime(struct tm *time) 152{ 153 time_t ret; 154 char *tz; 155 156 tz = getenv("TZ"); 157 setenv("TZ", "", 1); 158 tzset(); 159 ret = mktime(time); 160 if (tz) 161 setenv("TZ", tz, 1); 162 else 163 unsetenv("TZ"); 164 tzset(); 165 return ret; 166} 167 168