1 /* $NetBSD: pthread_types.h,v 1.9 2008/02/14 21:40:51 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _LIB_PTHREAD_TYPES_H 40 #define _LIB_PTHREAD_TYPES_H 41 42 /* 43 * We use the "pthread_spin_t" name internally; "pthread_spinlock_t" is the 44 * POSIX spinlock object. 45 */ 46 typedef __cpu_simple_lock_t pthread_spin_t; 47 48 /* 49 * Copied from PTQ_HEAD in pthread_queue.h 50 */ 51 #define _PTQ_HEAD(name, type) \ 52 struct name { \ 53 struct type *ptqh_first;/* first element */ \ 54 struct type **ptqh_last;/* addr of last next element */ \ 55 } 56 57 _PTQ_HEAD(pthread_queue_struct_t, __pthread_st); 58 typedef struct pthread_queue_struct_t pthread_queue_t; 59 60 struct __pthread_st; 61 struct __pthread_attr_st; 62 struct __pthread_mutex_st; 63 struct __pthread_mutexattr_st; 64 struct __pthread_cond_st; 65 struct __pthread_condattr_st; 66 struct __pthread_spin_st; 67 struct __pthread_rwlock_st; 68 struct __pthread_rwlockattr_st; 69 struct __pthread_barrier_st; 70 struct __pthread_barrierattr_st; 71 72 typedef struct __pthread_st *pthread_t; 73 typedef struct __pthread_attr_st pthread_attr_t; 74 typedef struct __pthread_mutex_st pthread_mutex_t; 75 typedef struct __pthread_mutexattr_st pthread_mutexattr_t; 76 typedef struct __pthread_cond_st pthread_cond_t; 77 typedef struct __pthread_condattr_st pthread_condattr_t; 78 typedef struct __pthread_once_st pthread_once_t; 79 typedef struct __pthread_spinlock_st pthread_spinlock_t; 80 typedef struct __pthread_rwlock_st pthread_rwlock_t; 81 typedef struct __pthread_rwlockattr_st pthread_rwlockattr_t; 82 typedef struct __pthread_barrier_st pthread_barrier_t; 83 typedef struct __pthread_barrierattr_st pthread_barrierattr_t; 84 typedef int pthread_key_t; 85 86 struct __pthread_attr_st { 87 unsigned int pta_magic; 88 89 int pta_flags; 90 void *pta_private; 91 }; 92 93 /* 94 * ptm_lock will never be spun on: it's locked with 95 * pthread__simple_lock_try() or not at all. 96 */ 97 struct __pthread_mutex_st { 98 unsigned int ptm_magic; 99 unsigned int ptm_errorcheck; 100 unsigned int ptm_recursed; 101 pthread_t * volatile ptm_waiters; 102 volatile pthread_t ptm_owner; 103 }; 104 105 #define _PT_MUTEX_MAGIC 0x33330003 106 #define _PT_MUTEX_DEAD 0xDEAD0003 107 108 #define _PTHREAD_MUTEX_INITIALIZER { _PT_MUTEX_MAGIC, 0, 0, NULL, NULL } 109 110 struct __pthread_mutexattr_st { 111 unsigned int ptma_magic; 112 void *ptma_private; 113 }; 114 115 #define _PT_MUTEXATTR_MAGIC 0x44440004 116 #define _PT_MUTEXATTR_DEAD 0xDEAD0004 117 118 119 struct __pthread_cond_st { 120 unsigned int ptc_magic; 121 122 /* Protects the queue of waiters */ 123 pthread_spin_t ptc_lock; 124 pthread_queue_t ptc_waiters; 125 126 pthread_mutex_t *ptc_mutex; /* Current mutex */ 127 void *ptc_private; 128 }; 129 130 #define _PT_COND_MAGIC 0x55550005 131 #define _PT_COND_DEAD 0xDEAD0005 132 133 #define _PTHREAD_COND_INITIALIZER { _PT_COND_MAGIC, \ 134 __SIMPLELOCK_UNLOCKED, \ 135 {NULL, NULL}, \ 136 NULL, \ 137 NULL \ 138 } 139 140 struct __pthread_condattr_st { 141 unsigned int ptca_magic; 142 void *ptca_private; 143 }; 144 145 #define _PT_CONDATTR_MAGIC 0x66660006 146 #define _PT_CONDATTR_DEAD 0xDEAD0006 147 148 struct __pthread_once_st { 149 pthread_mutex_t pto_mutex; 150 int pto_done; 151 }; 152 153 #define _PTHREAD_ONCE_INIT { PTHREAD_MUTEX_INITIALIZER, 0 } 154 155 struct __pthread_spinlock_st { 156 unsigned int pts_magic; 157 pthread_spin_t pts_spin; 158 int pts_flags; 159 }; 160 161 #define _PT_SPINLOCK_MAGIC 0x77770007 162 #define _PT_SPINLOCK_DEAD 0xDEAD0007 163 #define _PT_SPINLOCK_PSHARED 0x00000001 164 165 /* PTHREAD_SPINLOCK_INITIALIZER is an extension not specified by POSIX. */ 166 #define _PTHREAD_SPINLOCK_INITIALIZER { _PT_SPINLOCK_MAGIC, \ 167 __SIMPLELOCK_UNLOCKED, \ 168 0 \ 169 } 170 171 struct __pthread_rwlock_st { 172 unsigned int ptr_magic; 173 174 /* Protects data below */ 175 pthread_spin_t ptr_interlock; 176 177 pthread_queue_t ptr_rblocked; 178 pthread_queue_t ptr_wblocked; 179 unsigned int ptr_nreaders; 180 volatile pthread_t ptr_owner; 181 void *ptr_private; 182 }; 183 184 #define _PT_RWLOCK_MAGIC 0x99990009 185 #define _PT_RWLOCK_DEAD 0xDEAD0009 186 187 #define _PTHREAD_RWLOCK_INITIALIZER { _PT_RWLOCK_MAGIC, \ 188 __SIMPLELOCK_UNLOCKED, \ 189 {NULL, NULL}, \ 190 {NULL, NULL}, \ 191 0, \ 192 NULL, \ 193 NULL, \ 194 } 195 196 struct __pthread_rwlockattr_st { 197 unsigned int ptra_magic; 198 void *ptra_private; 199 }; 200 201 #define _PT_RWLOCKATTR_MAGIC 0x99990909 202 #define _PT_RWLOCKATTR_DEAD 0xDEAD0909 203 204 struct __pthread_barrier_st { 205 unsigned int ptb_magic; 206 207 /* Protects data below */ 208 pthread_spin_t ptb_lock; 209 210 pthread_queue_t ptb_waiters; 211 unsigned int ptb_initcount; 212 unsigned int ptb_curcount; 213 unsigned int ptb_generation; 214 215 void *ptb_private; 216 }; 217 218 #define _PT_BARRIER_MAGIC 0x88880008 219 #define _PT_BARRIER_DEAD 0xDEAD0008 220 221 struct __pthread_barrierattr_st { 222 unsigned int ptba_magic; 223 void *ptba_private; 224 }; 225 226 #define _PT_BARRIERATTR_MAGIC 0x88880808 227 #define _PT_BARRIERATTR_DEAD 0xDEAD0808 228 229 #endif /* _LIB_PTHREAD_TYPES_H */ 230