1 /*
2 * usleep function
3 *
4 * Copyright 1996 Alexandre Julliard
5 *
6 * This library 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 * 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 * 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 this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <errno.h>
25
26 #ifndef HAVE_USLEEP
27 int usleep (unsigned int useconds)
28 {
29 #if defined(__EMX__)
30 DosSleep(useconds);
31 return 0;
32 #elif defined(__BEOS__)
33 return snooze(useconds);
34 #elif defined(HAVE_SELECT)
35 struct timeval delay;
36
37 delay.tv_sec = useconds / 1000000;
38 delay.tv_usec = useconds % 1000000;
39
40 select( 0, 0, 0, 0, &delay );
41 return 0;
42 #else /* defined(__EMX__) || defined(__BEOS__) || defined(HAVE_SELECT) */
43 errno = ENOSYS;
44 return -1;
45 #endif /* defined(__EMX__) || defined(__BEOS__) || defined(HAVE_SELECT) */
46 }
47 #endif /* HAVE_USLEEP */
48
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