usr/src/head/pthread.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
  24  * Copyright 2018 Joyent, Inc.
  25  *
  26  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29
  30 #ifndef _PTHREAD_H
  31 #define _PTHREAD_H
  32
  33 #include <sys/feature_tests.h>
  34
  35 #ifndef _ASM
  36 #include <sys/types.h>
  37 #include <time.h>
  38 #include <sched.h>
  39 #endif  /* _ASM */
  40
  41 #ifdef  __cplusplus
  42 extern "C" {
  43 #endif
  44
  45 /*
  46  * Thread related attribute values defined as in thread.h.
  47  * These are defined as bit pattern in thread.h.
  48  * Any change here should be reflected in thread.h.
  49  */
  50 /* detach */
  51 #define PTHREAD_CREATE_DETACHED         0x40    /* = THR_DETACHED */
  52 #define PTHREAD_CREATE_JOINABLE         0
  53 /* scope */
  54 #define PTHREAD_SCOPE_SYSTEM            0x01    /* = THR_BOUND */
  55 #define PTHREAD_SCOPE_PROCESS           0
  56
  57 /*
  58  * Other attributes which are not defined in thread.h
  59  */
  60 /* inherit */
  61 #define PTHREAD_INHERIT_SCHED           1
  62 #define PTHREAD_EXPLICIT_SCHED          0
  63
  64 /*
  65  * Value of process-shared attribute
  66  * These are defined as values defined in sys/synch.h
  67  * Any change here should be reflected in sys/synch.h.
  68  */
  69 #define PTHREAD_PROCESS_SHARED          1       /* = USYNC_PROCESS */
  70 #define PTHREAD_PROCESS_PRIVATE         0       /* = USYNC_THREAD */
  71
  72 /*
  73  * mutex types
  74  * keep these in synch which sys/synch.h lock flags
  75  */
  76 #define PTHREAD_MUTEX_NORMAL            0x0
  77 #define PTHREAD_MUTEX_ERRORCHECK        0x2
  78 #define PTHREAD_MUTEX_RECURSIVE         0x4
  79 #define PTHREAD_MUTEX_DEFAULT           PTHREAD_MUTEX_NORMAL
  80
  81 /*
  82  * Mutex protocol values. Keep these in synch with sys/synch.h lock types.
  83  */
  84 #define PTHREAD_PRIO_NONE               0x0
  85 #define PTHREAD_PRIO_INHERIT            0x10
  86 #define PTHREAD_PRIO_PROTECT            0x20
  87
  88 /*
  89  * Mutex robust attribute values.
  90  * Keep these in synch with sys/synch.h lock types.
  91  */
  92 #define PTHREAD_MUTEX_STALLED           0x0
  93 #define PTHREAD_MUTEX_ROBUST            0x40
  94 /*
  95  * Historical solaris-specific names,
  96  * from before pthread_mutexattr_getrobust() became standardized
  97  */
  98 #define PTHREAD_MUTEX_STALL_NP          PTHREAD_MUTEX_STALLED
  99 #define PTHREAD_MUTEX_ROBUST_NP         PTHREAD_MUTEX_ROBUST
 100
 101 /*
 102  * macros - default initializers defined as in synch.h
 103  * Any change here should be reflected in synch.h.
 104  *
 105  * NOTE:
 106  * Make sure that any change in the macros is consistent with the definition
 107  * of the corresponding types in sys/types.h (e.g. PTHREAD_MUTEX_INITIALIZER
 108  * should be consistent with the definition for pthread_mutex_t).
 109  */
 110 #define PTHREAD_MUTEX_INITIALIZER               /* = DEFAULTMUTEX */    \
 111         {{0, 0, 0, PTHREAD_PROCESS_PRIVATE, _MUTEX_MAGIC}, {{{0}}}, 0}
 112
 113 #define PTHREAD_COND_INITIALIZER                /* = DEFAULTCV */       \
 114         {{{0, 0, 0, 0}, PTHREAD_PROCESS_PRIVATE, _COND_MAGIC}, 0}
 115
 116 #define PTHREAD_RWLOCK_INITIALIZER              /* = DEFAULTRWLOCK */   \
 117         {0, PTHREAD_PROCESS_PRIVATE, _RWL_MAGIC, PTHREAD_MUTEX_INITIALIZER, \
 118         PTHREAD_COND_INITIALIZER, PTHREAD_COND_INITIALIZER}
 119
 120 /* cancellation type and state */
 121 #define PTHREAD_CANCEL_ENABLE           0x00
 122 #define PTHREAD_CANCEL_DISABLE          0x01
 123 #define PTHREAD_CANCEL_DEFERRED         0x00
 124 #define PTHREAD_CANCEL_ASYNCHRONOUS     0x02
 125 #define PTHREAD_CANCELED                (void *)-19
 126
 127 /* pthread_once related values */
 128 #define PTHREAD_ONCE_NOTDONE    0
 129 #define PTHREAD_ONCE_DONE       1
 130 #define PTHREAD_ONCE_INIT       { {0, 0, 0, PTHREAD_ONCE_NOTDONE} }
 131
 132 /*
 133  * The key to be created by pthread_key_create_once_np()
 134  * must be statically initialized with PTHREAD_ONCE_KEY_NP.
 135  * This must be the same as THR_ONCE_KEY in <thread.h>
 136  */
 137 #define PTHREAD_ONCE_KEY_NP     (pthread_key_t)(-1)
 138
 139 /* barriers */
 140 #define PTHREAD_BARRIER_SERIAL_THREAD   -2
 141
 142 /* For pthread_{get,set}name_np(). */
 143 #define PTHREAD_MAX_NAMELEN_NP (32)
 144
 145 #ifndef _ASM
 146
 147 /*
 148  * cancellation cleanup structure
 149  */
 150 typedef struct _cleanup {
 151         uintptr_t       pthread_cleanup_pad[4];
 152 } _cleanup_t;
 153
 154 void    __pthread_cleanup_push(void (*)(void *), void *, caddr_t, _cleanup_t *);
 155 void    __pthread_cleanup_pop(int, _cleanup_t *);
 156 caddr_t _getfp(void);
 157
 158 #if __cplusplus
 159 extern "C" {
 160 #endif
 161
 162 typedef void (*_Voidfp)(void*); /* pointer to extern "C" function */
 163
 164 #if __cplusplus
 165 } /* extern "C" */
 166 #endif
 167
 168 #define pthread_cleanup_push(routine, args) { \
 169         _cleanup_t _cleanup_info; \
 170         __pthread_cleanup_push((_Voidfp)(routine), (void *)(args), \
 171                                 (caddr_t)_getfp(), &_cleanup_info);
 172
 173 #define pthread_cleanup_pop(ex) \
 174         __pthread_cleanup_pop(ex, &_cleanup_info); \
 175 }
 176
 177 /*
 178  * function prototypes - thread related calls
 179  */
 180
 181 /*
 182  * pthread_atfork() is also declared in <unistd.h> as per SUSv2. The
 183  * declarations are identical. A change to either one may also require
 184  * appropriate namespace updates in order to avoid redeclaration
 185  * warnings in the case where both prototypes are exposed via inclusion
 186  * of both <pthread.h> and <unistd.h>.
 187  */
 188 extern int pthread_atfork(void (*) (void), void (*) (void), void (*) (void));
 189 extern int pthread_attr_init(pthread_attr_t *);
 190 extern int pthread_attr_destroy(pthread_attr_t *);
 191 extern int pthread_attr_setstack(pthread_attr_t *, void *, size_t);
 192 extern int pthread_attr_getstack(const pthread_attr_t *_RESTRICT_KYWD,
 193                 void **_RESTRICT_KYWD, size_t *_RESTRICT_KYWD);
 194 extern int pthread_attr_setstacksize(pthread_attr_t *, size_t);
 195 extern int pthread_attr_getstacksize(const pthread_attr_t *_RESTRICT_KYWD,
 196                 size_t *_RESTRICT_KYWD);
 197 extern int pthread_attr_setstackaddr(pthread_attr_t *, void *);
 198 extern int pthread_attr_getstackaddr(const pthread_attr_t *_RESTRICT_KYWD,
 199                 void **_RESTRICT_KYWD);
 200 extern int pthread_attr_setdetachstate(pthread_attr_t *, int);
 201 extern int pthread_attr_getdetachstate(const pthread_attr_t *, int *);
 202 extern int pthread_attr_setscope(pthread_attr_t *, int);
 203 extern int pthread_attr_getscope(const pthread_attr_t *_RESTRICT_KYWD,
 204         int *_RESTRICT_KYWD);
 205 extern int pthread_attr_setinheritsched(pthread_attr_t *, int);
 206 extern int pthread_attr_getinheritsched(const pthread_attr_t *_RESTRICT_KYWD,
 207         int *_RESTRICT_KYWD);
 208 extern int pthread_attr_setschedpolicy(pthread_attr_t *, int);
 209 extern int pthread_attr_getschedpolicy(const pthread_attr_t *_RESTRICT_KYWD,
 210         int *_RESTRICT_KYWD);
 211 extern int pthread_attr_setschedparam(pthread_attr_t *_RESTRICT_KYWD,
 212                 const struct sched_param *_RESTRICT_KYWD);
 213 extern int pthread_attr_getschedparam(const pthread_attr_t *_RESTRICT_KYWD,
 214                 struct sched_param *_RESTRICT_KYWD);
 215 extern int pthread_attr_setname_np(pthread_attr_t *_RESTRICT_KYWD,
 216     const char *_RESTRICT_KYWD);
 217 extern int pthread_attr_getname_np(pthread_attr_t *_RESTRICT_KYWD,
 218     char *_RESTRICT_KYWD, size_t);
 219 extern int pthread_create(pthread_t *_RESTRICT_KYWD,
 220                 const pthread_attr_t *_RESTRICT_KYWD, void * (*)(void *),
 221                 void *_RESTRICT_KYWD);
 222 extern int pthread_once(pthread_once_t *, void (*)(void));
 223 extern int pthread_join(pthread_t, void **);
 224 extern int pthread_detach(pthread_t);
 225 extern void pthread_exit(void *) __NORETURN;
 226 extern int pthread_cancel(pthread_t);
 227 extern int pthread_setschedparam(pthread_t, int, const struct sched_param *);
 228 extern int pthread_getschedparam(pthread_t, int *_RESTRICT_KYWD,
 229                 struct sched_param *_RESTRICT_KYWD);
 230 extern int pthread_setschedprio(pthread_t, int);
 231 extern int pthread_setcancelstate(int, int *);
 232 extern int pthread_setcanceltype(int, int *);
 233 extern void pthread_testcancel(void);
 234 extern int pthread_equal(pthread_t, pthread_t);
 235 extern int pthread_key_create(pthread_key_t *, void (*)(void *));
 236 extern int pthread_key_create_once_np(pthread_key_t *, void (*)(void *));
 237 extern int pthread_key_delete(pthread_key_t);
 238 extern int pthread_setspecific(pthread_key_t, const void *);
 239 extern void *pthread_getspecific(pthread_key_t);
 240 extern pthread_t pthread_self(void);
 241 extern int pthread_setname_np(pthread_t, const char *);
 242 extern int pthread_getname_np(pthread_t, char *, size_t);
 243
 244 /*
 245  * function prototypes - synchronization related calls
 246  */
 247 extern int pthread_mutexattr_init(pthread_mutexattr_t *);
 248 extern int pthread_mutexattr_destroy(pthread_mutexattr_t *);
 249 extern int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int);
 250 extern int pthread_mutexattr_getpshared(
 251         const pthread_mutexattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 252 extern int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int);
 253 extern int pthread_mutexattr_getprotocol(
 254         const pthread_mutexattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 255 extern int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *, int);
 256 extern int pthread_mutexattr_getprioceiling(
 257         const pthread_mutexattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 258 extern int pthread_mutexattr_setrobust(pthread_mutexattr_t *, int);
 259 extern int pthread_mutexattr_getrobust(
 260         const pthread_mutexattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 261 extern int pthread_mutex_init(pthread_mutex_t *_RESTRICT_KYWD,
 262         const pthread_mutexattr_t *_RESTRICT_KYWD);
 263 extern int pthread_mutex_consistent(pthread_mutex_t *);
 264 extern int pthread_mutex_destroy(pthread_mutex_t *);
 265 extern int pthread_mutex_lock(pthread_mutex_t *);
 266 extern int pthread_mutex_timedlock(pthread_mutex_t *_RESTRICT_KYWD,
 267         const struct timespec *_RESTRICT_KYWD);
 268 extern int pthread_mutex_reltimedlock_np(pthread_mutex_t *_RESTRICT_KYWD,
 269         const struct timespec *_RESTRICT_KYWD);
 270 extern int pthread_mutex_unlock(pthread_mutex_t *);
 271 extern int pthread_mutex_trylock(pthread_mutex_t *);
 272 extern int pthread_mutex_setprioceiling(pthread_mutex_t *_RESTRICT_KYWD,
 273         int, int *_RESTRICT_KYWD);
 274 extern int pthread_mutex_getprioceiling(const pthread_mutex_t *_RESTRICT_KYWD,
 275         int *_RESTRICT_KYWD);
 276 extern int pthread_condattr_init(pthread_condattr_t *);
 277 extern int pthread_condattr_destroy(pthread_condattr_t *);
 278 extern int pthread_condattr_setclock(pthread_condattr_t *, clockid_t);
 279 extern int pthread_condattr_getclock(const pthread_condattr_t *_RESTRICT_KYWD,
 280         clockid_t *_RESTRICT_KYWD);
 281 extern int pthread_condattr_setpshared(pthread_condattr_t *, int);
 282 extern int pthread_condattr_getpshared(const pthread_condattr_t *_RESTRICT_KYWD,
 283         int *_RESTRICT_KYWD);
 284 extern int pthread_cond_init(pthread_cond_t *_RESTRICT_KYWD,
 285         const pthread_condattr_t *_RESTRICT_KYWD);
 286 extern int pthread_cond_destroy(pthread_cond_t *);
 287 extern int pthread_cond_broadcast(pthread_cond_t *);
 288 extern int pthread_cond_signal(pthread_cond_t *);
 289 extern int pthread_cond_wait(pthread_cond_t *_RESTRICT_KYWD,
 290         pthread_mutex_t *_RESTRICT_KYWD);
 291 extern int pthread_cond_timedwait(pthread_cond_t *_RESTRICT_KYWD,
 292         pthread_mutex_t *_RESTRICT_KYWD, const struct timespec *_RESTRICT_KYWD);
 293 extern int pthread_cond_reltimedwait_np(pthread_cond_t *_RESTRICT_KYWD,
 294         pthread_mutex_t *_RESTRICT_KYWD, const struct timespec *_RESTRICT_KYWD);
 295 extern int pthread_attr_getguardsize(const pthread_attr_t *_RESTRICT_KYWD,
 296         size_t *_RESTRICT_KYWD);
 297 extern int pthread_attr_setguardsize(pthread_attr_t *, size_t);
 298 extern int pthread_getconcurrency(void);
 299 extern int pthread_setconcurrency(int);
 300 extern int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
 301 extern int pthread_mutexattr_gettype(const pthread_mutexattr_t *_RESTRICT_KYWD,
 302         int *_RESTRICT_KYWD);
 303 extern int pthread_rwlock_init(pthread_rwlock_t *_RESTRICT_KYWD,
 304         const pthread_rwlockattr_t *_RESTRICT_KYWD);
 305 extern int pthread_rwlock_destroy(pthread_rwlock_t *);
 306 extern int pthread_rwlock_rdlock(pthread_rwlock_t *);
 307 extern int pthread_rwlock_timedrdlock(pthread_rwlock_t *_RESTRICT_KYWD,
 308         const struct timespec *_RESTRICT_KYWD);
 309 extern int pthread_rwlock_reltimedrdlock_np(pthread_rwlock_t *_RESTRICT_KYWD,
 310         const struct timespec *_RESTRICT_KYWD);
 311 extern int pthread_rwlock_tryrdlock(pthread_rwlock_t *);
 312 extern int pthread_rwlock_wrlock(pthread_rwlock_t *);
 313 extern int pthread_rwlock_timedwrlock(pthread_rwlock_t *_RESTRICT_KYWD,
 314         const struct timespec *_RESTRICT_KYWD);
 315 extern int pthread_rwlock_reltimedwrlock_np(pthread_rwlock_t *_RESTRICT_KYWD,
 316         const struct timespec *_RESTRICT_KYWD);
 317 extern int pthread_rwlock_trywrlock(pthread_rwlock_t *);
 318 extern int pthread_rwlock_unlock(pthread_rwlock_t *);
 319 extern int pthread_rwlockattr_init(pthread_rwlockattr_t *);
 320 extern int pthread_rwlockattr_destroy(pthread_rwlockattr_t *);
 321 extern int pthread_rwlockattr_getpshared(
 322         const pthread_rwlockattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 323 extern int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
 324 extern int pthread_spin_init(pthread_spinlock_t *, int);
 325 extern int pthread_spin_destroy(pthread_spinlock_t *);
 326 extern int pthread_spin_lock(pthread_spinlock_t *);
 327 extern int pthread_spin_trylock(pthread_spinlock_t *);
 328 extern int pthread_spin_unlock(pthread_spinlock_t *);
 329 extern int pthread_barrierattr_init(pthread_barrierattr_t *);
 330 extern int pthread_barrierattr_destroy(pthread_barrierattr_t *);
 331 extern int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);
 332 extern int pthread_barrierattr_getpshared(
 333         const pthread_barrierattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 334 extern int pthread_barrier_init(pthread_barrier_t *_RESTRICT_KYWD,
 335         const pthread_barrierattr_t *_RESTRICT_KYWD, uint_t);
 336 extern int pthread_barrier_destroy(pthread_barrier_t *);
 337 extern int pthread_barrier_wait(pthread_barrier_t *);
 338
 339 /* Historical names -- present only for binary compatibility */
 340 extern int pthread_mutex_consistent_np(pthread_mutex_t *);
 341 extern int pthread_mutexattr_setrobust_np(pthread_mutexattr_t *, int);
 342 extern int pthread_mutexattr_getrobust_np(
 343         const pthread_mutexattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 344
 345 /*
 346  * These are non-standardized extensions that we provide. Their origins are
 347  * documented in their manual pages.
 348  */
 349 #if !defined(_STRICT_SYMBOLS) || defined(__EXTENSIONS__)
 350 extern int pthread_attr_get_np(pthread_t, pthread_attr_t *);
 351 #endif  /* !_STRICT_SYMBOLS || __EXTENSIONS__ */
 352
 353 #endif  /* _ASM */
 354
 355 #ifdef  __cplusplus
 356 }
 357 #endif
 358
 359 #endif  /* _PTHREAD_H */