1 /* MIPS internal rwlock 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 _RWLOCK_INTERNAL_H 20 #define _RWLOCK_INTERNAL_H 21 22 struct __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