1  /* sem_timedwait -- wait on a semaphore with timeout.
       2     Copyright (C) 2003-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <time.h>
      20  #include "semaphoreP.h"
      21  #include "sem_waitcommon.c"
      22  
      23  /* This is in a separate file because because sem_timedwait is only provided
      24     if __USE_XOPEN2K is defined.  */
      25  int
      26  ___sem_timedwait64 (sem_t *sem, const struct __timespec64 *abstime)
      27  {
      28    if (! valid_nanoseconds (abstime->tv_nsec))
      29      {
      30        __set_errno (EINVAL);
      31        return -1;
      32      }
      33  
      34    /* Check sem_wait.c for a more detailed explanation why it is required.  */
      35    __pthread_testcancel ();
      36  
      37    if (__new_sem_wait_fast ((struct new_sem *) sem, 0) == 0)
      38      return 0;
      39    else
      40      return __new_sem_wait_slow64 ((struct new_sem *) sem,
      41  				  CLOCK_REALTIME, abstime);
      42  }
      43  
      44  #if __TIMESIZE == 64
      45  strong_alias (___sem_timedwait64, ___sem_timedwait)
      46  #else /* __TIMESPEC64 != 64 */
      47  strong_alias (___sem_timedwait64, __sem_timedwait64)
      48  libc_hidden_def (__sem_timedwait64)
      49  
      50  int
      51  ___sem_timedwait (sem_t *sem, const struct timespec *abstime)
      52  {
      53    struct __timespec64 ts64 = valid_timespec_to_timespec64 (*abstime);
      54  
      55    return __sem_timedwait64 (sem, &ts64);
      56  }
      57  #endif /* __TIMESPEC64 != 64 */
      58  versioned_symbol (libc, ___sem_timedwait, sem_timedwait, GLIBC_2_34);
      59  #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34)
      60  compat_symbol (libpthread, ___sem_timedwait, sem_timedwait, GLIBC_2_2);
      61  #endif