1/* MIPS internal rwlock struct definitions.
 2   Copyright (C) 2019-2025 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 _RWLOCK_INTERNAL_H
20#define _RWLOCK_INTERNAL_H
21
22struct __pthread_rwlock_arch_t
23{
24  unsigned int __readers;
25  unsigned int __writers;
26  unsigned int __wrphase_futex;
27  unsigned int __writers_futex;
28  unsigned int __pad3;
29  unsigned int __pad4;
30#if _MIPS_SIM == _ABI64
31  int __cur_writer;
32  int __shared;
33  unsigned long int __pad1;
34  unsigned long int __pad2;
35  /* FLAGS must stay at this position in the structure to maintain
36     binary compatibility.  */
37  unsigned int __flags;
38# else
39# if __BYTE_ORDER == __BIG_ENDIAN
40  unsigned char __pad1;
41  unsigned char __pad2;
42  unsigned char __shared;
43  /* FLAGS must stay at this position in the structure to maintain
44     binary compatibility.  */
45  unsigned char __flags;
46# else
47  /* FLAGS must stay at this position in the structure to maintain
48     binary compatibility.  */
49  unsigned char __flags;
50  unsigned char __shared;
51  unsigned char __pad1;
52  unsigned char __pad2;
53# endif
54  int __cur_writer;
55#endif
56};
57
58#if _MIPS_SIM == _ABI64
59# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \
60  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags
61#else
62# if __BYTE_ORDER == __BIG_ENDIAN
63#  define __PTHREAD_RWLOCK_INITIALIZER(__flags) \
64  0, 0, 0, 0, 0, 0, 0, 0, 0, __flags, 0
65# else
66#  define __PTHREAD_RWLOCK_INITIALIZER(__flags) \
67  0, 0, 0, 0, 0, 0, __flags, 0, 0, 0, 0
68# endif
69#endif
70
71#endif