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1/* Copyright (C) 1992-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
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.
8
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
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18#include <errno.h>
19#include <mach.h>
20#include <sys/time.h>
21#include <unistd.h>
22
23/* Sleep USECONDS microseconds, or until a previously set timer goes off. */
24int
25usleep (useconds_t useconds)
26{
27 mach_port_t recv;
28 struct timeval before, after;
29
30 recv = __mach_reply_port ();
31
32 if (__gettimeofday (&before, NULL) < 0)
33 return -1;
34 (void) __mach_msg (NULL, MACH_RCV_MSG|MACH_RCV_TIMEOUT|MACH_RCV_INTERRUPT,
35 0, 0, recv, (useconds + 999) / 1000, MACH_PORT_NULL);
36 __mach_port_destroy (mach_task_self (), recv);
37 if (__gettimeofday (&after, NULL) < 0)
38 return -1;
39
40 return 0;
41}
42

Warning: That file was not part of the compilation database. It may have many parsing errors.