benchtests/bench-pthread-mutex-trylock.c

   1 /* Measure mutex_trylock for different threads and critical sections.
   2    Copyright (C) 2022-2023 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 #define LOCK(lock)                                                            \
  20   while (pthread_mutex_trylock (lock) != 0)                                   \
  21     {                                                                         \
  22       non_critical_section (non_crt_len);                                     \
  23     }
  24
  25 #define UNLOCK(lock) pthread_mutex_unlock (lock)
  26 #define LOCK_INIT(lock, attr) pthread_mutex_init (lock, attr)
  27 #define LOCK_DESTROY(lock) pthread_mutex_destroy (lock)
  28 #define LOCK_ATTR_INIT(attr)                                                  \
  29   pthread_mutexattr_init (attr);                                              \
  30   pthread_mutexattr_settype (attr, PTHREAD_MUTEX_ADAPTIVE_NP);
  31
  32 #define bench_lock_t pthread_mutex_t
  33 #define bench_lock_attr_t pthread_mutexattr_t
  34
  35 #define TEST_NAME "pthread-mutex-trylock"
  36
  37 #include "bench-pthread-lock-base.c"