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7287c36d | 1 | /* Copyright (C) 1992, 93, 94, 97, 98, 99, 2001 Free Software Foundation, Inc. |
ebbad4cc | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
ebbad4cc | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
28f540f4 | 8 | |
ebbad4cc UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 AJ |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, write to the Free | |
16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
17 | 02111-1307 USA. */ | |
28f540f4 | 18 | |
28f540f4 RM |
19 | #include <errno.h> |
20 | #include <mach.h> | |
21 | #include <sys/time.h> | |
d6765f1d | 22 | #include <unistd.h> |
28f540f4 RM |
23 | |
24 | /* Sleep USECONDS microseconds, or until a previously set timer goes off. */ | |
7287c36d | 25 | int |
5a05b367 | 26 | usleep (useconds_t useconds) |
28f540f4 RM |
27 | { |
28 | mach_port_t recv; | |
29 | struct timeval before, after; | |
30 | ||
31 | recv = __mach_reply_port (); | |
32 | ||
33 | if (__gettimeofday (&before, NULL) < 0) | |
7287c36d | 34 | return -1; |
28f540f4 RM |
35 | (void) __mach_msg (NULL, MACH_RCV_MSG|MACH_RCV_TIMEOUT|MACH_RCV_INTERRUPT, |
36 | 0, 0, recv, (useconds + 999) / 1000, MACH_PORT_NULL); | |
37 | __mach_port_destroy (mach_task_self (), recv); | |
38 | if (__gettimeofday (&after, NULL) < 0) | |
7287c36d UD |
39 | return -1; |
40 | ||
41 | return 0; | |
28f540f4 | 42 | } |