glibc/sysdeps/unix/sysv/linux/nanosleep.c

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/* High-resolution sleep.
Copyright (C) 2020 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, see
<https://www.gnu.org/licenses/>. */
#include <time.h>
#include <errno.h>
int
__nanosleep64 (const struct __timespec64 *req, struct __timespec64 *rem)
{
int ret = __clock_nanosleep_time64 (CLOCK_REALTIME, 0, req, rem);
if (ret != 0)
{
__set_errno (ret);
return -1;
}
return 0;
}
#if __TIMESIZE != 64
libc_hidden_def (__nanosleep64)
int
__nanosleep (const struct timespec *req, struct timespec *rem)
{
struct __timespec64 treq64, trem64;
treq64 = valid_timespec_to_timespec64 (*req);
int ret = __nanosleep64 (&treq64, &trem64);
if (ret != 0 && errno == EINTR && rem != NULL)
*rem = valid_timespec64_to_timespec (trem64);
return ret;
}
#endif
libc_hidden_def (__nanosleep)
weak_alias (__nanosleep, nanosleep)