mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
29 lines
1.1 KiB
C
29 lines
1.1 KiB
C
/* Automatic enabling of elision for mutexes
|
|
Copyright (C) 2014-2017 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#ifdef ENABLE_LOCK_ELISION
|
|
/* Automatically enable elision for existing user lock kinds. */
|
|
#define FORCE_ELISION(m, s) \
|
|
if (__pthread_force_elision \
|
|
&& (m->__data.__kind & PTHREAD_MUTEX_ELISION_FLAGS_NP) == 0) \
|
|
{ \
|
|
mutex->__data.__kind |= PTHREAD_MUTEX_ELISION_NP; \
|
|
s; \
|
|
}
|
|
#endif
|