1 /* $NetBSD: pthread_types.h,v 1.12 2008/06/05 23:38:51 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2001, 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nathan J. Williams. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LIB_PTHREAD_TYPES_H 33 #define _LIB_PTHREAD_TYPES_H 34 35 /* 36 * We use the "pthread_spin_t" name internally; "pthread_spinlock_t" is the 37 * POSIX spinlock object. 38 */ 39 typedef __cpu_simple_lock_t pthread_spin_t; 40 41 /* 42 * Copied from PTQ_HEAD in pthread_queue.h 43 */ 44 #define _PTQ_HEAD(name, type) \ 45 struct name { \ 46 struct type *ptqh_first;/* first element */ \ 47 struct type **ptqh_last;/* addr of last next element */ \ 48 } 49 50 _PTQ_HEAD(pthread_queue_struct_t, __pthread_st); 51 typedef struct pthread_queue_struct_t pthread_queue_t; 52 53 struct __pthread_st; 54 struct __pthread_attr_st; 55 struct __pthread_mutex_st; 56 struct __pthread_mutexattr_st; 57 struct __pthread_cond_st; 58 struct __pthread_condattr_st; 59 struct __pthread_spin_st; 60 struct __pthread_rwlock_st; 61 struct __pthread_rwlockattr_st; 62 struct __pthread_barrier_st; 63 struct __pthread_barrierattr_st; 64 65 typedef struct __pthread_st *pthread_t; 66 typedef struct __pthread_attr_st pthread_attr_t; 67 typedef struct __pthread_mutex_st pthread_mutex_t; 68 typedef struct __pthread_mutexattr_st pthread_mutexattr_t; 69 typedef struct __pthread_cond_st pthread_cond_t; 70 typedef struct __pthread_condattr_st pthread_condattr_t; 71 typedef struct __pthread_once_st pthread_once_t; 72 typedef struct __pthread_spinlock_st pthread_spinlock_t; 73 typedef struct __pthread_rwlock_st pthread_rwlock_t; 74 typedef struct __pthread_rwlockattr_st pthread_rwlockattr_t; 75 typedef struct __pthread_barrier_st pthread_barrier_t; 76 typedef struct __pthread_barrierattr_st pthread_barrierattr_t; 77 typedef int pthread_key_t; 78 79 struct __pthread_attr_st { 80 unsigned int pta_magic; 81 82 int pta_flags; 83 void *pta_private; 84 }; 85 86 /* 87 * ptm_lock will never be spun on: it's locked with 88 * pthread__simple_lock_try() or not at all. 89 */ 90 struct __pthread_mutex_st { 91 unsigned int ptm_magic; 92 unsigned int ptm_errorcheck; 93 unsigned int ptm_recursed; 94 pthread_t * volatile ptm_waiters; 95 volatile pthread_t ptm_owner; 96 }; 97 98 #define _PT_MUTEX_MAGIC 0x33330003 99 #define _PT_MUTEX_DEAD 0xDEAD0003 100 101 #define _PTHREAD_MUTEX_INITIALIZER { _PT_MUTEX_MAGIC, 0, 0, NULL, NULL } 102 103 struct __pthread_mutexattr_st { 104 unsigned int ptma_magic; 105 void *ptma_private; 106 }; 107 108 #define _PT_MUTEXATTR_MAGIC 0x44440004 109 #define _PT_MUTEXATTR_DEAD 0xDEAD0004 110 111 112 struct __pthread_cond_st { 113 unsigned int ptc_magic; 114 115 /* Protects the queue of waiters */ 116 pthread_spin_t ptc_lock; 117 pthread_queue_t ptc_waiters; 118 119 pthread_mutex_t *ptc_mutex; /* Current mutex */ 120 void *ptc_private; 121 }; 122 123 #define _PT_COND_MAGIC 0x55550005 124 #define _PT_COND_DEAD 0xDEAD0005 125 126 #define _PTHREAD_COND_INITIALIZER { _PT_COND_MAGIC, \ 127 __SIMPLELOCK_UNLOCKED, \ 128 {NULL, NULL}, \ 129 NULL, \ 130 NULL \ 131 } 132 133 struct __pthread_condattr_st { 134 unsigned int ptca_magic; 135 void *ptca_private; 136 }; 137 138 #define _PT_CONDATTR_MAGIC 0x66660006 139 #define _PT_CONDATTR_DEAD 0xDEAD0006 140 141 struct __pthread_once_st { 142 pthread_mutex_t pto_mutex; 143 int pto_done; 144 }; 145 146 #define _PTHREAD_ONCE_INIT { PTHREAD_MUTEX_INITIALIZER, 0 } 147 148 struct __pthread_spinlock_st { 149 unsigned int pts_magic; 150 pthread_spin_t pts_spin; 151 int pts_flags; 152 }; 153 154 #define _PT_SPINLOCK_MAGIC 0x77770007 155 #define _PT_SPINLOCK_DEAD 0xDEAD0007 156 #define _PT_SPINLOCK_PSHARED 0x00000001 157 158 /* PTHREAD_SPINLOCK_INITIALIZER is an extension not specified by POSIX. */ 159 #define _PTHREAD_SPINLOCK_INITIALIZER { _PT_SPINLOCK_MAGIC, \ 160 __SIMPLELOCK_UNLOCKED, \ 161 0 \ 162 } 163 164 struct __pthread_rwlock_st { 165 unsigned int ptr_magic; 166 167 /* Protects data below */ 168 pthread_spin_t ptr_interlock; 169 170 pthread_queue_t ptr_rblocked; 171 pthread_queue_t ptr_wblocked; 172 unsigned int ptr_nreaders; 173 volatile pthread_t ptr_owner; 174 void *ptr_private; 175 }; 176 177 #define _PT_RWLOCK_MAGIC 0x99990009 178 #define _PT_RWLOCK_DEAD 0xDEAD0009 179 180 #define _PTHREAD_RWLOCK_INITIALIZER { _PT_RWLOCK_MAGIC, \ 181 __SIMPLELOCK_UNLOCKED, \ 182 {NULL, NULL}, \ 183 {NULL, NULL}, \ 184 0, \ 185 NULL, \ 186 NULL, \ 187 } 188 189 struct __pthread_rwlockattr_st { 190 unsigned int ptra_magic; 191 void *ptra_private; 192 }; 193 194 #define _PT_RWLOCKATTR_MAGIC 0x99990909 195 #define _PT_RWLOCKATTR_DEAD 0xDEAD0909 196 197 struct __pthread_barrier_st { 198 unsigned int ptb_magic; 199 200 /* Protects data below */ 201 pthread_spin_t ptb_lock; 202 203 pthread_queue_t ptb_waiters; 204 unsigned int ptb_initcount; 205 unsigned int ptb_curcount; 206 unsigned int ptb_generation; 207 208 void *ptb_private; 209 }; 210 211 #define _PT_BARRIER_MAGIC 0x88880008 212 #define _PT_BARRIER_DEAD 0xDEAD0008 213 214 struct __pthread_barrierattr_st { 215 unsigned int ptba_magic; 216 void *ptba_private; 217 }; 218 219 #define _PT_BARRIERATTR_MAGIC 0x88880808 220 #define _PT_BARRIERATTR_DEAD 0xDEAD0808 221 222 #endif /* _LIB_PTHREAD_TYPES_H */ 223