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5a414ff7 | 1 | /* Automatic enabling of elision for mutexes |
688903eb | 2 | Copyright (C) 2014-2018 Free Software Foundation, Inc. |
5a414ff7 DV |
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 | ||
5a414ff7 DV |
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 | } |