/*
* Lame time routines source file
*
* Copyright (c) 2000 Mark Taylor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/* $Id: lametime.c,v 1.21 2011/05/07 16:05:17 rbrito Exp $ */
/*
* name: GetCPUTime ( void )
*
* description: returns CPU time used by the process
* input: none
* output: time in seconds
* known bugs: may not work in SMP and RPC
* conforming: ANSI C
*
* There is some old difficult to read code at the end of this file.
* Can someone integrate this into this function (if useful)?
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <stdio.h>
#include <time.h>
#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif
#include "lametime.h"
#if !defined(CLOCKS_PER_SEC)
# warning Your system does not define CLOCKS_PER_SEC, guessing one...
# define CLOCKS_PER_SEC 1000000
#endif
double
GetCPUTime(void)
{
clock_t t;
#if defined(_MSC_VER) || defined(__BORLANDC__)
t = clock();
#else
t = clock();
#endif
return t / (double) CLOCKS_PER_SEC;
}
/*
* name: GetRealTime ( void )
*
* description: returns real (human) time elapsed relative to a fixed time (mostly 1970-01-01 00:00:00)
* input: none
* output: time in seconds
* known bugs: bad precision with time()
*/
#if defined(__unix__) || defined(SVR4) || defined(BSD)
# include <sys/time.h>
# include <unistd.h>
double
GetRealTime(void)
{ /* conforming: SVr4, BSD 4.3 */
struct timeval t;
if (0 != gettimeofday(&t, NULL))
assert(0);
return t.tv_sec + 1.e-6 * t.tv_usec;
}
#elif defined(WIN16) || defined(WIN32)
# include <stdio.h>
# include <sys/types.h>
# include <sys/timeb.h>
double
GetRealTime(void)
{ /* conforming: Win 95, Win NT */
struct timeb t;
ftime(&t);
return t.time + 1.e-3 * t.millitm;
}
#else
double
GetRealTime(void)
{ /* conforming: SVr4, SVID, POSIX, X/OPEN, BSD 4.3 */ /* BUT NOT GUARANTEED BY ANSI */
time_t t;
t = time(NULL);
return (double) t;
}
#endif
#if defined(_WIN32) || defined(__CYGWIN__)
# include <io.h>
# include <fcntl.h>
#else
# include <unistd.h>
#endif
int
lame_set_stream_binary_mode(FILE * const fp)
{
#if defined __EMX__
_fsetmode(fp, "b");
#elif defined __BORLANDC__
setmode(_fileno(fp), O_BINARY);
#elif defined __CYGWIN__
setmode(fileno(fp), _O_BINARY);
#elif defined _WIN32
_setmode(_fileno(fp), _O_BINARY);
#else
(void) fp; /* doing nothing here, silencing the compiler only. */
#endif
return 0;
}
/* End of lametime.c */