1 /* Pthread mutex tunable parameters. 2 Copyright (C) 2018-2022 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 #ifndef _PTHREAD_MUTEX_CONF_H 19 #define _PTHREAD_MUTEX_CONF_H 1 20 21 #include <adaptive_spin_count.h> 22 23 #if HAVE_TUNABLES 24 struct mutex_config 25 { 26 int spin_count; 27 }; 28 29 extern struct mutex_config __mutex_aconf; 30 libc_hidden_proto (__mutex_aconf) 31 32 extern void __pthread_tunables_init (void) attribute_hidden; 33 #else 34 static inline void __pthread_tunables_init(void)35__pthread_tunables_init (void) 36 { 37 /* No tunables to initialize. */ 38 } 39 #endif 40 41 #endif 42