1 /*
2 * Copyright (c) 2000-2003 Fabrice Bellard
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg 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 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "config.h"
22
23 #include <stddef.h>
24 #include <stdint.h>
26 #if HAVE_GETTIMEOFDAY
27 #include <sys/time.h>
28 #endif
29 #if HAVE_UNISTD_H
30 #include <unistd.h>
31 #endif
32 #if HAVE_WINDOWS_H
33 #include <windows.h>
34 #endif
35
38
40 {
41 #if HAVE_GETTIMEOFDAY
42 struct timeval tv;
43 gettimeofday(&tv,
NULL);
44 return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
45 #elif HAVE_GETSYSTEMTIMEASFILETIME
46 FILETIME ft;
48 GetSystemTimeAsFileTime(&ft);
49 t = (int64_t)ft.dwHighDateTime << 32 | ft.dwLowDateTime;
50 return t / 10 - 11644473600000000; /* Jan 1, 1601 */
51 #else
52 return -1;
53 #endif
54 }
55
57 {
58 #if HAVE_NANOSLEEP
59 struct timespec ts = { usec / 1000000, usec % 1000000 * 1000 };
60 while (nanosleep(&ts, &ts) < 0 && errno == EINTR);
61 return 0;
62 #elif HAVE_USLEEP
63 return usleep(usec);
64 #elif HAVE_SLEEP
65 Sleep(usec / 1000);
66 return 0;
67 #else
69 #endif
70 }