Annotation of src/lib/libpthread/pthread_types.h, Revision 1.9
1.9 ! ad 1: /* $NetBSD: pthread_types.h,v 1.8 2007/09/07 14:09:28 ad Exp $ */
1.2 thorpej 2:
3: /*-
1.9 ! ad 4: * Copyright (c) 2001, 2008 The NetBSD Foundation, Inc.
1.2 thorpej 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:
1.5 nathanw 42: /*
43: * We use the "pthread_spin_t" name internally; "pthread_spinlock_t" is the
1.2 thorpej 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:
1.7 ad 57: _PTQ_HEAD(pthread_queue_struct_t, __pthread_st);
58: typedef struct pthread_queue_struct_t pthread_queue_t;
1.2 thorpej 59:
1.4 nathanw 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;
1.2 thorpej 84: typedef int pthread_key_t;
85:
1.4 nathanw 86: struct __pthread_attr_st {
1.2 thorpej 87: unsigned int pta_magic;
88:
89: int pta_flags;
90: void *pta_private;
91: };
92:
1.6 ad 93: /*
94: * ptm_lock will never be spun on: it's locked with
95: * pthread__simple_lock_try() or not at all.
96: */
1.4 nathanw 97: struct __pthread_mutex_st {
1.2 thorpej 98: unsigned int ptm_magic;
1.9 ! ad 99: unsigned int ptm_errorcheck;
! 100: unsigned int ptm_recursed;
! 101: pthread_t * volatile ptm_waiters;
1.8 ad 102: volatile pthread_t ptm_owner;
1.2 thorpej 103: };
104:
105: #define _PT_MUTEX_MAGIC 0x33330003
106: #define _PT_MUTEX_DEAD 0xDEAD0003
107:
1.9 ! ad 108: #define _PTHREAD_MUTEX_INITIALIZER { _PT_MUTEX_MAGIC, 0, 0, NULL, NULL }
1.2 thorpej 109:
1.4 nathanw 110: struct __pthread_mutexattr_st {
1.2 thorpej 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:
1.4 nathanw 119: struct __pthread_cond_st {
1.2 thorpej 120: unsigned int ptc_magic;
121:
122: /* Protects the queue of waiters */
123: pthread_spin_t ptc_lock;
1.7 ad 124: pthread_queue_t ptc_waiters;
1.2 thorpej 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:
1.4 nathanw 133: #define _PTHREAD_COND_INITIALIZER { _PT_COND_MAGIC, \
1.2 thorpej 134: __SIMPLELOCK_UNLOCKED, \
135: {NULL, NULL}, \
136: NULL, \
137: NULL \
138: }
139:
1.4 nathanw 140: struct __pthread_condattr_st {
1.2 thorpej 141: unsigned int ptca_magic;
142: void *ptca_private;
143: };
144:
145: #define _PT_CONDATTR_MAGIC 0x66660006
146: #define _PT_CONDATTR_DEAD 0xDEAD0006
147:
1.4 nathanw 148: struct __pthread_once_st {
1.2 thorpej 149: pthread_mutex_t pto_mutex;
150: int pto_done;
151: };
152:
1.4 nathanw 153: #define _PTHREAD_ONCE_INIT { PTHREAD_MUTEX_INITIALIZER, 0 }
1.2 thorpej 154:
1.4 nathanw 155: struct __pthread_spinlock_st {
1.2 thorpej 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. */
1.4 nathanw 166: #define _PTHREAD_SPINLOCK_INITIALIZER { _PT_SPINLOCK_MAGIC, \
1.2 thorpej 167: __SIMPLELOCK_UNLOCKED, \
168: 0 \
169: }
170:
1.4 nathanw 171: struct __pthread_rwlock_st {
1.2 thorpej 172: unsigned int ptr_magic;
173:
174: /* Protects data below */
175: pthread_spin_t ptr_interlock;
176:
1.7 ad 177: pthread_queue_t ptr_rblocked;
178: pthread_queue_t ptr_wblocked;
1.2 thorpej 179: unsigned int ptr_nreaders;
1.9 ! ad 180: volatile pthread_t ptr_owner;
1.2 thorpej 181: void *ptr_private;
182: };
183:
184: #define _PT_RWLOCK_MAGIC 0x99990009
185: #define _PT_RWLOCK_DEAD 0xDEAD0009
186:
1.4 nathanw 187: #define _PTHREAD_RWLOCK_INITIALIZER { _PT_RWLOCK_MAGIC, \
1.2 thorpej 188: __SIMPLELOCK_UNLOCKED, \
189: {NULL, NULL}, \
190: {NULL, NULL}, \
191: 0, \
192: NULL, \
193: NULL, \
194: }
195:
1.4 nathanw 196: struct __pthread_rwlockattr_st {
1.2 thorpej 197: unsigned int ptra_magic;
198: void *ptra_private;
199: };
200:
201: #define _PT_RWLOCKATTR_MAGIC 0x99990909
202: #define _PT_RWLOCKATTR_DEAD 0xDEAD0909
203:
1.4 nathanw 204: struct __pthread_barrier_st {
1.2 thorpej 205: unsigned int ptb_magic;
206:
207: /* Protects data below */
208: pthread_spin_t ptb_lock;
209:
1.7 ad 210: pthread_queue_t ptb_waiters;
1.2 thorpej 211: unsigned int ptb_initcount;
212: unsigned int ptb_curcount;
1.3 nathanw 213: unsigned int ptb_generation;
1.2 thorpej 214:
215: void *ptb_private;
216: };
217:
218: #define _PT_BARRIER_MAGIC 0x88880008
219: #define _PT_BARRIER_DEAD 0xDEAD0008
220:
1.4 nathanw 221: struct __pthread_barrierattr_st {
1.2 thorpej 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 */
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