1 /*
2 * Lame time routines source file
3 *
4 * Copyright (c) 2000 Mark Taylor
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
20 */
21
22 /* $Id: lametime.c,v 1.10 2001/02/26 18:57:20 markt Exp $ */
23
24 /*
25 * name: GetCPUTime ( void )
26 *
27 * description: returns CPU time used by the process
28 * input: none
29 * output: time in seconds
30 * known bugs: may not work in SMP and RPC
31 * conforming: ANSI C
32 *
33 * There is some old difficult to read code at the end of this file.
34 * Can someone integrate this into this function (if useful)?
35 */
36
37 #define _BSD_EXTENSION
38
39 #ifdef HAVE_CONFIG_H
40 # include <config.h>
41 #endif
42
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <unistd.h>
46 #include <assert.h>
47 #include <time.h>
48 #include <sys/types.h>
49 #include <sys/stat.h>
50 #include <sys/time.h>
51
52 #include "lametime.h"
53
GetCPUTime(void)54 double GetCPUTime ( void )
55 {
56 return clock () / (double) CLOCKS_PER_SEC;
57 }
58
59 /*
60 * name: GetRealTime ( void )
61 *
62 * description: returns real (human) time elapsed relative to a fixed time (mostly 1970-01-01 00:00:00)
63 * input: none
64 * output: time in seconds
65 * known bugs: bad precision with time()
66 */
67
GetRealTime(void)68 double GetRealTime ( void ) /* conforming: SVr4, BSD 4.3 */
69 {
70 struct timeval t;
71
72 if ( 0 != gettimeofday (&t, NULL) )
73 assert (0);
74 return t.tv_sec + 1.e-6 * t.tv_usec;
75 }
76
lame_set_stream_binary_mode(FILE * const fp)77 int lame_set_stream_binary_mode ( FILE* const fp )
78 {
79 return 0;
80 }
81
lame_get_file_size(const char * const filename)82 off_t lame_get_file_size ( const char* const filename )
83 {
84 struct stat sb;
85
86 if ( 0 == stat ( filename, &sb ) )
87 return sb.st_size;
88 return (off_t) -1;
89 }
90