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- /* Copyright (C) 2003-2019 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
- <http://www.gnu.org/licenses/>. */
- #include <time.h>
- #include <errno.h>
- #include <sysdep-cancel.h>
- #include "kernel-posix-cpu-timers.h"
- /* We can simply use the syscall. The CPU clocks are not supported
- with this function. */
- int
- __clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
- struct timespec *rem)
- {
- if (clock_id == CLOCK_THREAD_CPUTIME_ID)
- return EINVAL;
- if (clock_id == CLOCK_PROCESS_CPUTIME_ID)
- clock_id = MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED);
- /* If the call is interrupted by a signal handler or encounters an error,
- it returns a positive value similar to errno. */
- INTERNAL_SYSCALL_DECL (err);
- int r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep, err, clock_id, flags,
- req, rem);
- return (INTERNAL_SYSCALL_ERROR_P (r, err)
- ? INTERNAL_SYSCALL_ERRNO (r, err) : 0);
- }
- weak_alias (__clock_nanosleep, clock_nanosleep)
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