mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-28 13:31:13 +00:00
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/* HPPA internal mutex struct definitions.
|
|
Copyright (C) 2019-2023 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/>. */
|
|
|
|
#ifndef _THREAD_MUTEX_INTERNAL_H
|
|
#define _THREAD_MUTEX_INTERNAL_H 1
|
|
|
|
struct __pthread_mutex_s
|
|
{
|
|
int __lock __LOCK_ALIGNMENT;
|
|
unsigned int __count;
|
|
int __owner;
|
|
/* KIND must stay at this position in the structure to maintain
|
|
binary compatibility with static initializers. */
|
|
int __kind;
|
|
/* The old 4-word 16-byte aligned lock. This is initalized
|
|
to all ones by the Linuxthreads PTHREAD_MUTEX_INITIALIZER.
|
|
Unused in NPTL. */
|
|
int __glibc_compat_padding[4];
|
|
/* In the old structure there are 4 words left due to alignment.
|
|
In NPTL two words are used. */
|
|
unsigned int __nusers;
|
|
__extension__ union
|
|
{
|
|
int __spins;
|
|
__pthread_slist_t __list;
|
|
};
|
|
/* Two more words are left before the NPTL
|
|
pthread_mutex_t is larger than Linuxthreads. */
|
|
int __glibc_reserved1;
|
|
int __glibc_reserved2;
|
|
};
|
|
|
|
#define __PTHREAD_MUTEX_HAVE_PREV 0
|
|
|
|
#define __PTHREAD_MUTEX_INITIALIZER(__kind) \
|
|
0, 0, 0, __kind, { 0, 0, 0, 0 }, 0, { 0 }, 0, 0
|
|
|
|
#endif
|