nptl/pthread_rwlock_rdlock.c

   1 /* Copyright (C) 2003-2024 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include "pthread_rwlock_common.c"
  19
  20 /* See pthread_rwlock_common.c.  */
  21 int
  22 ___pthread_rwlock_rdlock (pthread_rwlock_t *rwlock)
  23 {
  24   LIBC_PROBE (rdlock_entry, 1, rwlock);
  25
  26   int result = __pthread_rwlock_rdlock_full64 (rwlock, CLOCK_REALTIME, NULL);
  27   LIBC_PROBE (rdlock_acquire_read, 1, rwlock);
  28   return result;
  29 }
  30 versioned_symbol (libc, ___pthread_rwlock_rdlock, pthread_rwlock_rdlock,
  31                   GLIBC_2_34);
  32 strong_alias (___pthread_rwlock_rdlock, __pthread_rwlock_rdlock)
  33 libc_hidden_ver (___pthread_rwlock_rdlock, __pthread_rwlock_rdlock)
  34
  35 #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_1, GLIBC_2_34)
  36 compat_symbol (libpthread, ___pthread_rwlock_rdlock, pthread_rwlock_rdlock,
  37                GLIBC_2_1);
  38 #endif
  39 #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34)
  40 compat_symbol (libpthread, ___pthread_rwlock_rdlock, __pthread_rwlock_rdlock,
  41                GLIBC_2_2);
  42 #endif