ref: a1c3c34c70431447a89fbe08c3475dbfaee7b672
dir: /sys/src/cmd/audio/mp3enc/lametime.c/
/*
* 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 1.10 2001/02/26 18:57:20 markt 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)?
*/
#define _BSD_EXTENSION
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <assert.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include "lametime.h"
double GetCPUTime ( void )
{
return clock () / (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()
*/
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;
}
int lame_set_stream_binary_mode ( FILE* const fp )
{
return 0;
}
off_t lame_get_file_size ( const char* const filename )
{
struct stat sb;
if ( 0 == stat ( filename, &sb ) )
return sb.st_size;
return (off_t) -1;
}