1 /* MIPS internal mutex struct definitions.
2    Copyright (C) 2019-2021 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 #ifndef _THREAD_MUTEX_INTERNAL_H
20 #define _THREAD_MUTEX_INTERNAL_H 1
21 
22 struct __pthread_mutex_s
23 {
24   int __lock;
25   unsigned int __count;
26   int __owner;
27 #if _MIPS_SIM == _ABI64
28   unsigned int __nusers;
29 #endif
30   /* KIND must stay at this position in the structure to maintain
31      binary compatibility with static initializers.  */
32   int __kind;
33 #if _MIPS_SIM == _ABI64
34   int __spins;
35   __pthread_list_t __list;
36 # define __PTHREAD_MUTEX_HAVE_PREV      1
37 #else
38   unsigned int __nusers;
39   __extension__ union
40   {
41     int __spins;
42     __pthread_slist_t __list;
43   };
44 # define __PTHREAD_MUTEX_HAVE_PREV      0
45 #endif
46 };
47 
48 #if _MIPS_SIM == _ABI64
49 # define __PTHREAD_MUTEX_INITIALIZER(__kind) \
50   0, 0, 0, 0, __kind, 0, { 0, 0 }
51 #else
52 # define __PTHREAD_MUTEX_INITIALIZER(__kind) \
53   0, 0, 0, __kind, 0, { 0 }
54 #endif
55 
56 #endif