45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/* Change priority protocol setting in pthread_mutexattr_t.
|
|
Copyright (C) 2006-2022 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <pthreadP.h>
|
|
#include <shlib-compat.h>
|
|
|
|
int
|
|
__pthread_mutexattr_setprotocol (pthread_mutexattr_t *attr, int protocol)
|
|
{
|
|
if (protocol != PTHREAD_PRIO_NONE
|
|
&& protocol != PTHREAD_PRIO_INHERIT
|
|
&& __builtin_expect (protocol != PTHREAD_PRIO_PROTECT, 0))
|
|
return EINVAL;
|
|
|
|
struct pthread_mutexattr *iattr = (struct pthread_mutexattr *) attr;
|
|
|
|
iattr->mutexkind = ((iattr->mutexkind & ~PTHREAD_MUTEXATTR_PROTOCOL_MASK)
|
|
| (protocol << PTHREAD_MUTEXATTR_PROTOCOL_SHIFT));
|
|
|
|
return 0;
|
|
}
|
|
versioned_symbol (libc, __pthread_mutexattr_setprotocol,
|
|
pthread_mutexattr_setprotocol, GLIBC_2_34);
|
|
|
|
#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_4, GLIBC_2_34)
|
|
compat_symbol (libpthread, __pthread_mutexattr_setprotocol,
|
|
pthread_mutexattr_setprotocol, GLIBC_2_4);
|
|
#endif
|