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 /* $Id$ */
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 #ifdef HAVE_CONFIG_H
38 # include <config.h>
39 #endif
40
41 #include <assert.h>
42 #include <stdio.h>
43 #include <time.h>
44
45 #ifdef WITH_DMALLOC
46 #include <dmalloc.h>
47 #endif
48
49 #include "lametime.h"
50
51 #if !defined(CLOCKS_PER_SEC)
52 # warning Your system does not define CLOCKS_PER_SEC, guessing one...
53 # define CLOCKS_PER_SEC 1000000
54 #endif
55
56
57 double
GetCPUTime(void)58 GetCPUTime(void)
59 {
60 clock_t t;
61
62 #if defined(_MSC_VER) || defined(__BORLANDC__)
63 t = clock();
64 #else
65 t = clock();
66 #endif
67 return t / (double) CLOCKS_PER_SEC;
68 }
69
70
71 /*
72 * name: GetRealTime ( void )
73 *
74 * description: returns real (human) time elapsed relative to a fixed time (mostly 1970-01-01 00:00:00)
75 * input: none
76 * output: time in seconds
77 * known bugs: bad precision with time()
78 */
79
80 #if defined(__unix__) || defined(SVR4) || defined(BSD)
81
82 # include <sys/time.h>
83 # include <unistd.h>
84
85 double
GetRealTime(void)86 GetRealTime(void)
87 { /* conforming: SVr4, BSD 4.3 */
88 struct timeval t;
89
90 if (0 != gettimeofday(&t, NULL))
91 assert(0);
92 return t.tv_sec + 1.e-6 * t.tv_usec;
93 }
94
95 #elif defined(WIN16) || defined(WIN32)
96
97 # include <stdio.h>
98 # include <sys/types.h>
99 # include <sys/timeb.h>
100
101 double
GetRealTime(void)102 GetRealTime(void)
103 { /* conforming: Win 95, Win NT */
104 struct timeb t;
105
106 ftime(&t);
107 return t.time + 1.e-3 * t.millitm;
108 }
109
110 #else
111
112 double
GetRealTime(void)113 GetRealTime(void)
114 { /* conforming: SVr4, SVID, POSIX, X/OPEN, BSD 4.3 */ /* BUT NOT GUARANTEED BY ANSI */
115 time_t t;
116
117 t = time(NULL);
118 return (double) t;
119 }
120
121 #endif
122
123
124 #if defined(_WIN32) || defined(__CYGWIN__)
125 # include <io.h>
126 # include <fcntl.h>
127 #else
128 # include <unistd.h>
129 #endif
130
131 int
lame_set_stream_binary_mode(FILE * const fp)132 lame_set_stream_binary_mode(FILE * const fp)
133 {
134 #if defined __EMX__
135 _fsetmode(fp, "b");
136 #elif defined __BORLANDC__
137 setmode(_fileno(fp), O_BINARY);
138 #elif defined __CYGWIN__
139 setmode(fileno(fp), _O_BINARY);
140 #elif defined _WIN32
141 _setmode(_fileno(fp), _O_BINARY);
142 #else
143 (void) fp; /* doing nothing here, silencing the compiler only. */
144 #endif
145 return 0;
146 }
147
148
149 /* End of lametime.c */
150