sysdeps/htl/pt-rwlock-wrlock.c

   1 /* Acquire a rwlock for writing.  Generic version.
   2    Copyright (C) 2002-2023 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 <pthread.h>
  20 #include <assert.h>
  21
  22 #include <pt-internal.h>
  23
  24 /* Implemented in pt-rwlock-timedwrlock.c.  */
  25 extern int __pthread_rwlock_timedwrlock_internal (struct __pthread_rwlock
  26                                                   *rwlock,
  27                                                   clockid_t clockid,
  28                                                   const struct timespec
  29                                                   *abstime);
  30
  31 /* Acquire RWLOCK for writing.  */
  32 int
  33 __pthread_rwlock_wrlock (struct __pthread_rwlock *rwlock)
  34 {
  35   return __pthread_rwlock_timedwrlock_internal (rwlock, -1, 0);
  36 }
  37 weak_alias (__pthread_rwlock_wrlock, pthread_rwlock_wrlock);