time.cc revision 7862
1/* 2 * Copyright (c) 2003-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Nathan Binkert 29 */ 30 31#include <iostream> 32#include <sstream> 33 34#include "base/time.hh" 35#include "config/use_posix_clock.hh" 36#include "sim/core.hh" 37 38using namespace std; 39 40void 41Time::_set(bool monotonic) 42{ 43#if USE_POSIX_CLOCK 44 ::clock_gettime(monotonic ? CLOCK_MONOTONIC : CLOCK_REALTIME, &_time); 45#else 46 timeval tv; 47 ::gettimeofday(&tv, NULL); 48 operator=(tv); 49#endif 50} 51 52void 53Time::setTick(Tick ticks) 54{ 55 uint64_t nsecs = ticks / SimClock::Int::ns; 56 set(nsecs / NSEC_PER_SEC, nsecs % NSEC_PER_SEC); 57} 58 59Tick 60Time::getTick() const 61{ 62 return (nsec() + sec() * NSEC_PER_SEC) * SimClock::Int::ns; 63} 64 65string 66Time::date(const string &format) const 67{ 68 time_t sec = this->sec(); 69 char buf[256]; 70 71 if (format.empty()) { 72#ifdef __SUNPRO_CC 73 ctime_r(&sec, buf, sizeof(buf)); 74#else 75 ctime_r(&sec, buf); 76#endif 77 buf[24] = '\0'; 78 return buf; 79 } 80 81 struct tm *tm = localtime(&sec); 82 strftime(buf, sizeof(buf), format.c_str(), tm); 83 return buf; 84} 85 86string 87Time::time() const 88{ 89 double time = double(*this); 90 double secs = fmod(time, 60.0); 91 double all_mins = floor(time / 60.0); 92 double mins = fmod(all_mins, 60.0); 93 double hours = floor(all_mins / 60.0); 94 95 stringstream str; 96 97 if (hours > 0.0) { 98 if (hours < 10.0) 99 str << '0'; 100 str << hours << ':'; 101 } 102 103 if (mins > 0.0) { 104 if (mins < 10.0) 105 str << '0'; 106 str << mins << ':'; 107 } 108 109 if (secs < 10.0 && !str.str().empty()) 110 str << '0'; 111 str << secs; 112 113 return str.str(); 114} 115 116void 117sleep(const Time &time) 118{ 119 timespec ts = time; 120 121#if USE_POSIX_CLOCK 122 clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL); 123#else 124 nanosleep(&ts, NULL); 125#endif 126} 127