mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 00:31:08 +00:00
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/* Copyright (C) 2003-2023 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 <kernel-features.h>
|
|
#include <errno.h>
|
|
|
|
#include <sysdep-cancel.h>
|
|
#include "kernel-posix-cpu-timers.h"
|
|
|
|
#include <shlib-compat.h>
|
|
|
|
/* We can simply use the syscall. The CPU clocks are not supported
|
|
with this function. */
|
|
int
|
|
__clock_nanosleep_time64 (clockid_t clock_id, int flags,
|
|
const struct __timespec64 *req,
|
|
struct __timespec64 *rem)
|
|
{
|
|
if (clock_id == CLOCK_THREAD_CPUTIME_ID)
|
|
return EINVAL;
|
|
if (clock_id == CLOCK_PROCESS_CPUTIME_ID)
|
|
clock_id = PROCESS_CLOCK;
|
|
|
|
/* If the call is interrupted by a signal handler or encounters an error,
|
|
it returns a positive value similar to errno. */
|
|
|
|
#ifndef __NR_clock_nanosleep_time64
|
|
# define __NR_clock_nanosleep_time64 __NR_clock_nanosleep
|
|
#endif
|
|
|
|
int r;
|
|
#ifdef __ASSUME_TIME64_SYSCALLS
|
|
r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, clock_id, flags, req,
|
|
rem);
|
|
#else
|
|
if (!in_int32_t_range (req->tv_sec))
|
|
{
|
|
r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, clock_id, flags,
|
|
req, rem);
|
|
if (r == -ENOSYS)
|
|
r = -EOVERFLOW;
|
|
}
|
|
else
|
|
{
|
|
struct timespec tr32;
|
|
struct timespec ts32 = valid_timespec64_to_timespec (*req);
|
|
r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep, clock_id, flags, &ts32,
|
|
&tr32);
|
|
if (INTERNAL_SYSCALL_ERROR_P (r))
|
|
{
|
|
if (r == -EINTR && rem != NULL && (flags & TIMER_ABSTIME) == 0)
|
|
*rem = valid_timespec_to_timespec64 (tr32);
|
|
}
|
|
}
|
|
#endif
|
|
return -r;
|
|
}
|
|
|
|
#if __TIMESIZE != 64
|
|
libc_hidden_def (__clock_nanosleep_time64)
|
|
|
|
int
|
|
__clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
|
|
struct timespec *rem)
|
|
{
|
|
int r;
|
|
struct __timespec64 treq64, trem64;
|
|
|
|
treq64 = valid_timespec_to_timespec64 (*req);
|
|
r = __clock_nanosleep_time64 (clock_id, flags, &treq64,
|
|
rem != NULL ? &trem64 : NULL);
|
|
|
|
if (r == EINTR && rem != NULL && (flags & TIMER_ABSTIME) == 0)
|
|
*rem = valid_timespec64_to_timespec (trem64);
|
|
|
|
return r;
|
|
}
|
|
#endif
|
|
libc_hidden_def (__clock_nanosleep)
|
|
versioned_symbol (libc, __clock_nanosleep, clock_nanosleep, GLIBC_2_17);
|
|
/* clock_nanosleep moved to libc in version 2.17;
|
|
old binaries may expect the symbol version it had in librt. */
|
|
#if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17)
|
|
strong_alias (__clock_nanosleep, __clock_nanosleep_2);
|
|
compat_symbol (libc, __clock_nanosleep_2, clock_nanosleep, GLIBC_2_2);
|
|
#endif
|