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55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/* Copyright (C) 2003-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <time.h>
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#include <errno.h>
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#include <sysdep-cancel.h>
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#include "kernel-posix-cpu-timers.h"
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/* We can simply use the syscall. The CPU clocks are not supported
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with this function. */
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int
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__clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
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struct timespec *rem)
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{
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INTERNAL_SYSCALL_DECL (err);
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int r;
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if (clock_id == CLOCK_THREAD_CPUTIME_ID)
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return EINVAL;
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if (clock_id == CLOCK_PROCESS_CPUTIME_ID)
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clock_id = MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED);
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if (SINGLE_THREAD_P)
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r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req, rem);
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else
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{
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int oldstate = LIBC_CANCEL_ASYNC ();
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r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req,
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rem);
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LIBC_CANCEL_RESET (oldstate);
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}
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return (INTERNAL_SYSCALL_ERROR_P (r, err)
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? INTERNAL_SYSCALL_ERRNO (r, err) : 0);
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}
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weak_alias (__clock_nanosleep, clock_nanosleep)
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