mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 05:50:14 +00:00
f7f7f8150a
* include/time.h: Add libc_hidden_proto for __nanosleep. * sysdeps/generic/nanosleep.c: Add libc_hidden_def for __nanosleep. * sysdeps/mach/nanosleep.c: Likewise. * sysdeps/unix/sysv/aix/nanosleep.c: Likewise. * sysdeps/unix/sysv/linux/syscalls.list: Add __GI___nanosleep alias.
55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
/* nanosleep -- sleep for a period specified with a struct timespec
|
|
Copyright (C) 2002 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <errno.h>
|
|
#include <mach.h>
|
|
#include <sys/time.h>
|
|
#include <unistd.h>
|
|
|
|
int
|
|
__nanosleep (const struct timespec *requested_time,
|
|
struct timespec *remaining)
|
|
{
|
|
mach_port_t recv;
|
|
struct timeval before, after;
|
|
const mach_msg_timeout_t ms
|
|
= requested_time->tv_sec * 1000
|
|
+ (requested_time->tv_nsec + 999999) / 1000000;
|
|
|
|
recv = __mach_reply_port ();
|
|
|
|
if (remaining && __gettimeofday (&before, NULL) < 0)
|
|
return -1;
|
|
(void) __mach_msg (NULL, MACH_RCV_MSG|MACH_RCV_TIMEOUT|MACH_RCV_INTERRUPT,
|
|
0, 0, recv, ms, MACH_PORT_NULL);
|
|
__mach_port_destroy (mach_task_self (), recv);
|
|
if (remaining && __gettimeofday (&after, NULL) < 0)
|
|
return -1;
|
|
|
|
if (remaining)
|
|
{
|
|
timersub (&after, &before, &after);
|
|
TIMEVAL_TO_TIMESPEC (&after, remaining);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
libc_hidden_def (__nanosleep)
|
|
weak_alias (__nanosleep, nanosleep)
|