1/* force-elision.h: Automatic enabling of elision for mutexes
2 Copyright (C) 2013-2018 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 <http://www.gnu.org/licenses/>. */
18
19/* Automatically enable elision for existing user lock kinds. */
20#define FORCE_ELISION(m, s) \
21 if (__pthread_force_elision \
22 && (m->__data.__kind & PTHREAD_MUTEX_ELISION_FLAGS_NP) == 0) \
23 { \
24 mutex->__data.__kind |= PTHREAD_MUTEX_ELISION_NP; \
25 s; \
26 }
27