/* | |
* Copyright (c) 2005, Herve Drolon, FreeImage Team | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' | |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
* POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#ifdef _WIN32 | |
#include <windows.h> | |
#else | |
#include <sys/time.h> | |
#include <sys/resource.h> | |
#include <sys/times.h> | |
#endif /* _WIN32 */ | |
#include "opj_includes.h" | |
double opj_clock() { | |
#ifdef _WIN32 | |
/* WIN32: use QueryPerformance (very accurate) */ | |
LARGE_INTEGER freq , t ; | |
/* freq is the clock speed of the CPU */ | |
QueryPerformanceFrequency(&freq) ; | |
/* cout << "freq = " << ((double) freq.QuadPart) << endl; */ | |
/* t is the high resolution performance counter (see MSDN) */ | |
QueryPerformanceCounter ( & t ) ; | |
return ( t.QuadPart /(double) freq.QuadPart ) ; | |
#else | |
/* Unix or Linux: use resource usage */ | |
struct rusage t; | |
double procTime; | |
/* (1) Get the rusage data structure at this moment (man getrusage) */ | |
getrusage(0,&t); | |
/* (2) What is the elapsed time ? - CPU time = User time + System time */ | |
/* (2a) Get the seconds */ | |
procTime = t.ru_utime.tv_sec + t.ru_stime.tv_sec; | |
/* (2b) More precisely! Get the microseconds part ! */ | |
return ( procTime + (t.ru_utime.tv_usec + t.ru_stime.tv_usec) * 1e-6 ) ; | |
#endif /* _WIN32 */ | |
} | |
void* opj_malloc( size_t size ) { | |
void *memblock = malloc(size); | |
if(memblock) { | |
memset(memblock, 0, size); | |
} | |
return memblock; | |
} | |
void* opj_realloc( void *memblock, size_t size ) { | |
return realloc(memblock, size); | |
} | |
void opj_free( void *memblock ) { | |
free(memblock); | |
} | |