sysdeps/unix/sysv/linux/cnd_timedwait.c

   1 /* C11 threads conditional timed wait implementation - Linux variant.
   2    Copyright (C) 2020-2022 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 <shlib-compat.h>
  21 #include "thrd_priv.h"
  22
  23 int
  24 __cnd_timedwait64 (cnd_t *restrict cond, mtx_t *restrict mutex,
  25                    const struct __timespec64 *restrict time_point)
  26 {
  27   int err_code = __pthread_cond_timedwait64 ((pthread_cond_t *) cond,
  28                                              (pthread_mutex_t *) mutex,
  29                                              time_point);
  30   return thrd_err_map (err_code);
  31 }
  32
  33 #if __TIMESIZE == 64
  34 strong_alias (__cnd_timedwait64, ___cnd_timedwait)
  35 #else
  36 libc_hidden_def (__cnd_timedwait64)
  37
  38 int
  39 ___cnd_timedwait (cnd_t *restrict cond, mtx_t *restrict mutex,
  40                   const struct timespec *restrict time_point)
  41 {
  42   struct __timespec64 ts64 = valid_timespec_to_timespec64 (*time_point);
  43
  44   return __cnd_timedwait64(cond, mutex, &ts64);
  45 }
  46 #endif /* __TIMESIZE == 64 */
  47 versioned_symbol (libc, ___cnd_timedwait, cnd_timedwait, GLIBC_2_34);
  48
  49 #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_28, GLIBC_2_34)
  50 compat_symbol (libpthread, ___cnd_timedwait, cnd_timedwait, GLIBC_2_28);
  51 #endif