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46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
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/* sem_clockwait -- wait on a semaphore with timeout using the specified
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clock.
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Copyright (C) 2019 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 "sem_waitcommon.c"
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int
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sem_clockwait (sem_t *sem, clockid_t clockid,
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const struct timespec *abstime)
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{
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/* Check that supplied clockid is one we support, even if we don't end up
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waiting. */
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if (!futex_abstimed_supported_clockid (clockid))
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{
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__set_errno (EINVAL);
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return -1;
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}
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if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
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{
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__set_errno (EINVAL);
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return -1;
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}
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if (__new_sem_wait_fast ((struct new_sem *) sem, 0) == 0)
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return 0;
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else
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return __new_sem_wait_slow ((struct new_sem *) sem, clockid, abstime);
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}
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