1 /* 2 * Copyright (c) 1993, 1994 by Chris Provenzano, proven@mit.edu 3 * Copyright (c) 1995-1998 by John Birrell <jb@cimlogic.com.au> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Chris Provenzano. 17 * 4. The name of Chris Provenzano may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD$ 34 */ 35 #ifndef _PTHREAD_H_ 36 #define _PTHREAD_H_ 37 38 /* 39 * Header files. 40 */ 41 #include <sys/cdefs.h> 42 #include <sys/types.h> 43 #include <sys/time.h> 44 #include <sys/signal.h> 45 #include <limits.h> 46 #include <sched.h> 47 48 /* 49 * Run-time invariant values: 50 */ 51 #define PTHREAD_DESTRUCTOR_ITERATIONS 4 52 #define PTHREAD_KEYS_MAX 256 53 #define PTHREAD_STACK_MIN 1024 54 #define PTHREAD_THREADS_MAX ULONG_MAX 55 #define PTHREAD_BARRIER_SERIAL_THREAD -1 56 57 /* 58 * Flags for threads and thread attributes. 59 */ 60 #define PTHREAD_DETACHED 0x1 61 #define PTHREAD_SCOPE_SYSTEM 0x2 62 #define PTHREAD_INHERIT_SCHED 0x4 63 #define PTHREAD_NOFLOAT 0x8 64 65 #define PTHREAD_CREATE_DETACHED PTHREAD_DETACHED 66 #define PTHREAD_CREATE_JOINABLE 0 67 #define PTHREAD_SCOPE_PROCESS 0 68 #define PTHREAD_EXPLICIT_SCHED 0 69 70 /* 71 * Flags for read/write lock attributes 72 */ 73 #define PTHREAD_PROCESS_PRIVATE 0 74 #define PTHREAD_PROCESS_SHARED 1 75 76 /* 77 * Flags for cancelling threads 78 */ 79 #define PTHREAD_CANCEL_ENABLE 0 80 #define PTHREAD_CANCEL_DISABLE 1 81 #define PTHREAD_CANCEL_DEFERRED 0 82 #define PTHREAD_CANCEL_ASYNCHRONOUS 2 83 #define PTHREAD_CANCELED ((void *) 1) 84 85 /* 86 * Forward structure definitions. 87 * 88 * These are mostly opaque to the user. 89 */ 90 struct pthread; 91 struct pthread_attr; 92 struct pthread_cond; 93 struct pthread_cond_attr; 94 struct pthread_mutex; 95 struct pthread_mutex_attr; 96 struct pthread_once; 97 struct pthread_rwlock; 98 struct pthread_rwlockattr; 99 struct pthread_barrier; 100 struct pthread_barrier_attr; 101 struct pthread_spinlock; 102 103 /* 104 * Primitive system data type definitions required by P1003.1c. 105 * 106 * Note that P1003.1c specifies that there are no defined comparison 107 * or assignment operators for the types pthread_attr_t, pthread_cond_t, 108 * pthread_condattr_t, pthread_mutex_t, pthread_mutexattr_t. 109 */ 110 typedef struct pthread *pthread_t; 111 typedef struct pthread_attr *pthread_attr_t; 112 typedef struct pthread_mutex *pthread_mutex_t; 113 typedef struct pthread_mutex_attr *pthread_mutexattr_t; 114 typedef struct pthread_cond *pthread_cond_t; 115 typedef struct pthread_cond_attr *pthread_condattr_t; 116 typedef int pthread_key_t; 117 typedef struct pthread_once pthread_once_t; 118 typedef struct pthread_rwlock *pthread_rwlock_t; 119 typedef struct pthread_rwlockattr *pthread_rwlockattr_t; 120 typedef struct pthread_barrier *pthread_barrier_t; 121 typedef struct pthread_barrierattr *pthread_barrierattr_t; 122 typedef struct pthread_spinlock *pthread_spinlock_t; 123 124 /* 125 * Additional type definitions: 126 * 127 * Note that P1003.1c reserves the prefixes pthread_ and PTHREAD_ for 128 * use in header symbols. 129 */ 130 typedef void *pthread_addr_t; 131 typedef void *(*pthread_startroutine_t)(void *); 132 133 /* 134 * Once definitions. 135 */ 136 struct pthread_once { 137 int state; 138 pthread_mutex_t mutex; 139 }; 140 141 /* 142 * Flags for once initialization. 143 */ 144 #define PTHREAD_NEEDS_INIT 0 145 #define PTHREAD_DONE_INIT 1 146 147 /* 148 * Static once initialization values. 149 */ 150 #define PTHREAD_ONCE_INIT { PTHREAD_NEEDS_INIT, NULL } 151 152 /* 153 * Static initialization values. 154 */ 155 #define PTHREAD_MUTEX_INITIALIZER NULL 156 #define PTHREAD_COND_INITIALIZER NULL 157 #define PTHREAD_RWLOCK_INITIALIZER NULL 158 159 /* 160 * Default attribute arguments (draft 4, deprecated). 161 */ 162 #ifndef PTHREAD_KERNEL 163 #define pthread_condattr_default NULL 164 #define pthread_mutexattr_default NULL 165 #define pthread_attr_default NULL 166 #endif 167 168 #define PTHREAD_PRIO_NONE 0 169 #define PTHREAD_PRIO_INHERIT 1 170 #define PTHREAD_PRIO_PROTECT 2 171 172 /* 173 * Mutex types (Single UNIX Specification, Version 2, 1997). 174 * 175 * Note that a mutex attribute with one of the following types: 176 * 177 * PTHREAD_MUTEX_NORMAL 178 * PTHREAD_MUTEX_RECURSIVE 179 * MUTEX_TYPE_FAST (deprecated) 180 * MUTEX_TYPE_COUNTING_FAST (deprecated) 181 * 182 * will deviate from POSIX specified semantics. 183 */ 184 enum pthread_mutextype { 185 PTHREAD_MUTEX_ERRORCHECK = 1, /* Default POSIX mutex */ 186 PTHREAD_MUTEX_RECURSIVE = 2, /* Recursive mutex */ 187 PTHREAD_MUTEX_NORMAL = 3, /* No error checking */ 188 MUTEX_TYPE_MAX 189 }; 190 191 #define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_ERRORCHECK 192 #define MUTEX_TYPE_FAST PTHREAD_MUTEX_NORMAL 193 #define MUTEX_TYPE_COUNTING_FAST PTHREAD_MUTEX_RECURSIVE 194 195 /* 196 * Thread function prototype definitions: 197 */ 198 __BEGIN_DECLS 199 int pthread_atfork(void (*prepare)(void), void (*parent)(void), 200 void (*child)(void)); 201 int pthread_attr_destroy(pthread_attr_t *); 202 int pthread_attr_getstack(const pthread_attr_t * __restrict, 203 void ** __restrict stackaddr, 204 size_t * __restrict stacksize); 205 int pthread_attr_getstacksize(const pthread_attr_t *, size_t *); 206 int pthread_attr_getguardsize(const pthread_attr_t *, size_t *); 207 int pthread_attr_getstackaddr(const pthread_attr_t *, void **); 208 int pthread_attr_getdetachstate(const pthread_attr_t *, int *); 209 int pthread_attr_init(pthread_attr_t *); 210 int pthread_attr_setstacksize(pthread_attr_t *, size_t); 211 int pthread_attr_setguardsize(pthread_attr_t *, size_t); 212 int pthread_attr_setstack(pthread_attr_t *, void *, size_t); 213 int pthread_attr_setstackaddr(pthread_attr_t *, void *); 214 int pthread_attr_setdetachstate(pthread_attr_t *, int); 215 int pthread_barrier_destroy(pthread_barrier_t *); 216 int pthread_barrier_init(pthread_barrier_t *, 217 const pthread_barrierattr_t *, unsigned); 218 int pthread_barrier_wait(pthread_barrier_t *); 219 int pthread_barrierattr_destroy(pthread_barrierattr_t *); 220 int pthread_barrierattr_getpshared(const pthread_barrierattr_t *, 221 int *); 222 int pthread_barrierattr_init(pthread_barrierattr_t *); 223 int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int); 224 void pthread_cleanup_pop(int); 225 void pthread_cleanup_push(void (*) (void *), void *routine_arg); 226 int pthread_condattr_destroy(pthread_condattr_t *); 227 int pthread_condattr_init(pthread_condattr_t *); 228 229 int pthread_cond_broadcast(pthread_cond_t *); 230 int pthread_cond_destroy(pthread_cond_t *); 231 int pthread_cond_init(pthread_cond_t *, 232 const pthread_condattr_t *); 233 int pthread_cond_signal(pthread_cond_t *); 234 int pthread_cond_timedwait(pthread_cond_t *, 235 pthread_mutex_t *, const struct timespec *); 236 int pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *); 237 int pthread_create(pthread_t *, const pthread_attr_t *, 238 void *(*) (void *), void *); 239 int pthread_detach(pthread_t); 240 int pthread_equal(pthread_t, pthread_t); 241 void pthread_exit(void *) __dead2; 242 void *pthread_getspecific(pthread_key_t); 243 int pthread_join(pthread_t, void **); 244 int pthread_key_create(pthread_key_t *, 245 void (*) (void *)); 246 int pthread_key_delete(pthread_key_t); 247 int pthread_kill(pthread_t, int); 248 int pthread_mutexattr_init(pthread_mutexattr_t *); 249 int pthread_mutexattr_destroy(pthread_mutexattr_t *); 250 int pthread_mutexattr_gettype(pthread_mutexattr_t *, int *); 251 int pthread_mutexattr_settype(pthread_mutexattr_t *, int); 252 int pthread_mutex_destroy(pthread_mutex_t *); 253 int pthread_mutex_init(pthread_mutex_t *, 254 const pthread_mutexattr_t *); 255 int pthread_mutex_lock(pthread_mutex_t *); 256 int pthread_mutex_trylock(pthread_mutex_t *); 257 int pthread_mutex_timedlock(pthread_mutex_t *, 258 const struct timespec *); 259 int pthread_mutex_unlock(pthread_mutex_t *); 260 int pthread_once(pthread_once_t *, void (*) (void)); 261 int pthread_rwlock_destroy(pthread_rwlock_t *); 262 int pthread_rwlock_init(pthread_rwlock_t *, 263 const pthread_rwlockattr_t *); 264 int pthread_rwlock_rdlock(pthread_rwlock_t *); 265 int pthread_rwlock_timedrdlock(pthread_rwlock_t *, 266 const struct timespec *); 267 int pthread_rwlock_timedrwlock(pthread_rwlock_t *, 268 const struct timespec *); 269 int pthread_rwlock_tryrdlock(pthread_rwlock_t *); 270 int pthread_rwlock_trywrlock(pthread_rwlock_t *); 271 int pthread_rwlock_unlock(pthread_rwlock_t *); 272 int pthread_rwlock_wrlock(pthread_rwlock_t *); 273 int pthread_rwlockattr_init(pthread_rwlockattr_t *); 274 int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *, 275 int *); 276 int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int); 277 int pthread_rwlockattr_destroy(pthread_rwlockattr_t *); 278 pthread_t pthread_self(void); 279 int pthread_setspecific(pthread_key_t, const void *); 280 int pthread_sigmask(int, const sigset_t *, sigset_t *); 281 282 int pthread_spin_init(pthread_spinlock_t *, int); 283 int pthread_spin_destroy(pthread_spinlock_t *); 284 int pthread_spin_lock(pthread_spinlock_t *); 285 int pthread_spin_trylock(pthread_spinlock_t *); 286 int pthread_spin_unlock(pthread_spinlock_t *); 287 int pthread_cancel(pthread_t); 288 int pthread_setcancelstate(int, int *); 289 int pthread_setcanceltype(int, int *); 290 void pthread_testcancel(void); 291 292 int pthread_getprio(pthread_t); 293 int pthread_setprio(pthread_t, int); 294 void pthread_yield(void); 295 296 int pthread_mutexattr_getprioceiling(pthread_mutexattr_t *, 297 int *); 298 int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *, 299 int); 300 int pthread_mutex_getprioceiling(pthread_mutex_t *, int *); 301 int pthread_mutex_setprioceiling(pthread_mutex_t *, int, int *); 302 303 int pthread_mutexattr_getprotocol(pthread_mutexattr_t *, int *); 304 int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int); 305 306 int pthread_attr_getinheritsched(const pthread_attr_t *, int *); 307 int pthread_attr_getschedparam(const pthread_attr_t *, 308 struct sched_param *); 309 int pthread_attr_getschedpolicy(const pthread_attr_t *, int *); 310 int pthread_attr_getscope(const pthread_attr_t *, int *); 311 int pthread_attr_setinheritsched(pthread_attr_t *, int); 312 int pthread_attr_setschedparam(pthread_attr_t *, 313 const struct sched_param *); 314 int pthread_attr_setschedpolicy(pthread_attr_t *, int); 315 int pthread_attr_setscope(pthread_attr_t *, int); 316 int pthread_getschedparam(pthread_t pthread, int *, 317 struct sched_param *); 318 int pthread_setschedparam(pthread_t, int, 319 const struct sched_param *); 320 int pthread_getconcurrency(void); 321 int pthread_setconcurrency(int); 322 __END_DECLS 323 324 #endif 325