1ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov/* 2ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * The copyright in this software is being made available under the 2-clauses 3ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * BSD License, included below. This software may be subject to other third 4ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * party and contributor rights, including patent rights, and no such rights 5ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * are granted under this license. 6ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * 7ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * Copyright (c) 2005, Herve Drolon, FreeImage Team 8ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * All rights reserved. 9ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * 10ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * Redistribution and use in source and binary forms, with or without 11ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * modification, are permitted provided that the following conditions 12ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * are met: 13ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * 1. Redistributions of source code must retain the above copyright 14ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * notice, this list of conditions and the following disclaimer. 15ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * 2. Redistributions in binary form must reproduce the above copyright 16ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * notice, this list of conditions and the following disclaimer in the 17ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * documentation and/or other materials provided with the distribution. 18ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * 19ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' 20ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 23ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov * POSSIBILITY OF SUCH DAMAGE. 30ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov */ 31ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 32ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#ifdef _WIN32 33ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#include <windows.h> 34ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#else 35ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#include <sys/time.h> 36ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#include <sys/resource.h> 37ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#include <sys/times.h> 38ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#endif /* _WIN32 */ 39ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#include "opj_includes.h" 40ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 41ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovOPJ_FLOAT64 opj_clock(void) { 42ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#ifdef _WIN32 43ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov /* _WIN32: use QueryPerformance (very accurate) */ 44ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov LARGE_INTEGER freq , t ; 45ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov /* freq is the clock speed of the CPU */ 46ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov QueryPerformanceFrequency(&freq) ; 47ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov /* cout << "freq = " << ((double) freq.QuadPart) << endl; */ 48ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov /* t is the high resolution performance counter (see MSDN) */ 49ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov QueryPerformanceCounter ( & t ) ; 50ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return ( t.QuadPart /(OPJ_FLOAT64) freq.QuadPart ) ; 51ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#else 52ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov /* Unix or Linux: use resource usage */ 53ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov struct rusage t; 54ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov OPJ_FLOAT64 procTime; 55ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov /* (1) Get the rusage data structure at this moment (man getrusage) */ 56ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov getrusage(0,&t); 57ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov /* (2) What is the elapsed time ? - CPU time = User time + System time */ 58ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov /* (2a) Get the seconds */ 59ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov procTime = (OPJ_FLOAT64)(t.ru_utime.tv_sec + t.ru_stime.tv_sec); 60ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov /* (2b) More precisely! Get the microseconds part ! */ 61ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return ( procTime + (OPJ_FLOAT64)(t.ru_utime.tv_usec + t.ru_stime.tv_usec) * 1e-6 ) ; 62ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#endif 63ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 64ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 65