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 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 #ifndef _PTHREAD_H
  28 #define _PTHREAD_H
  29 
  30 #include <sys/feature_tests.h>
  31 
  32 #ifndef _ASM
  33 #include <sys/types.h>
  34 #include <time.h>
  35 #include <sched.h>
  36 #endif  /* _ASM */
  37 
  38 #ifdef  __cplusplus
  39 extern "C" {
  40 #endif
  41 
  42 /*
  43  * Thread related attribute values defined as in thread.h.
  44  * These are defined as bit pattern in thread.h.
  45  * Any change here should be reflected in thread.h.
  46  */
  47 /* detach */
  48 #define PTHREAD_CREATE_DETACHED         0x40    /* = THR_DETACHED */
  49 #define PTHREAD_CREATE_JOINABLE         0
  50 /* scope */
  51 #define PTHREAD_SCOPE_SYSTEM            0x01    /* = THR_BOUND */
  52 #define PTHREAD_SCOPE_PROCESS           0
  53 
  54 /*
  55  * Other attributes which are not defined in thread.h
  56  */
  57 /* inherit */
  58 #define PTHREAD_INHERIT_SCHED           1
  59 #define PTHREAD_EXPLICIT_SCHED          0
  60 
  61 /*
  62  * Value of process-shared attribute
  63  * These are defined as values defined in sys/synch.h
  64  * Any change here should be reflected in sys/synch.h.
  65  */
  66 #define PTHREAD_PROCESS_SHARED          1       /* = USYNC_PROCESS */
  67 #define PTHREAD_PROCESS_PRIVATE         0       /* = USYNC_THREAD */
  68 
  69 #define _DEFAULT_TYPE                   PTHREAD_PROCESS_PRIVATE
  70 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
  71 #define DEFAULT_TYPE                    _DEFAULT_TYPE
  72 #endif
  73 
  74 /*
  75  * mutex types
  76  * keep these in synch which sys/synch.h lock flags
  77  */
  78 #define PTHREAD_MUTEX_NORMAL            0x0
  79 #define PTHREAD_MUTEX_ERRORCHECK        0x2
  80 #define PTHREAD_MUTEX_RECURSIVE         0x4
  81 #define PTHREAD_MUTEX_DEFAULT           PTHREAD_MUTEX_NORMAL
  82 
  83 /*
  84  * Mutex protocol values. Keep these in synch with sys/synch.h lock types.
  85  */
  86 #define PTHREAD_PRIO_NONE               0x0
  87 #define PTHREAD_PRIO_INHERIT            0x10
  88 #define PTHREAD_PRIO_PROTECT            0x20
  89 
  90 /*
  91  * Mutex robust attribute values.
  92  * Keep these in synch with sys/synch.h lock types.
  93  */
  94 #define PTHREAD_MUTEX_STALLED           0x0
  95 #define PTHREAD_MUTEX_ROBUST            0x40
  96 /*
  97  * Historical solaris-specific names,
  98  * from before pthread_mutexattr_getrobust() became standardized
  99  */
 100 #define PTHREAD_MUTEX_STALL_NP          PTHREAD_MUTEX_STALLED
 101 #define PTHREAD_MUTEX_ROBUST_NP         PTHREAD_MUTEX_ROBUST
 102 
 103 /*
 104  * macros - default initializers defined as in synch.h
 105  * Any change here should be reflected in synch.h.
 106  *
 107  * NOTE:
 108  * Make sure that any change in the macros is consistent with the definition
 109  * of the corresponding types in sys/types.h (e.g. PTHREAD_MUTEX_INITIALIZER
 110  * should be consistent with the definition for pthread_mutex_t).
 111  */
 112 #define PTHREAD_MUTEX_INITIALIZER               /* = DEFAULTMUTEX */    \
 113         {{0, 0, 0, _DEFAULT_TYPE, _MUTEX_MAGIC}, {{{0}}}, 0}
 114 
 115 #define PTHREAD_COND_INITIALIZER                /* = DEFAULTCV */       \
 116         {{{0, 0, 0, 0}, _DEFAULT_TYPE, _COND_MAGIC}, 0}
 117 
 118 #define PTHREAD_RWLOCK_INITIALIZER              /* = DEFAULTRWLOCK */   \
 119         {0, _DEFAULT_TYPE, _RWL_MAGIC, PTHREAD_MUTEX_INITIALIZER,       \
 120         PTHREAD_COND_INITIALIZER, PTHREAD_COND_INITIALIZER}
 121 
 122 /* cancellation type and state */
 123 #define PTHREAD_CANCEL_ENABLE           0x00
 124 #define PTHREAD_CANCEL_DISABLE          0x01
 125 #define PTHREAD_CANCEL_DEFERRED         0x00
 126 #define PTHREAD_CANCEL_ASYNCHRONOUS     0x02
 127 #define PTHREAD_CANCELED                (void *)-19
 128 
 129 /* pthread_once related values */
 130 #define PTHREAD_ONCE_NOTDONE    0
 131 #define PTHREAD_ONCE_DONE       1
 132 #define PTHREAD_ONCE_INIT       { {0, 0, 0, PTHREAD_ONCE_NOTDONE} }
 133 
 134 /*
 135  * The key to be created by pthread_key_create_once_np()
 136  * must be statically initialized with PTHREAD_ONCE_KEY_NP.
 137  * This must be the same as THR_ONCE_KEY in <thread.h>
 138  */
 139 #define PTHREAD_ONCE_KEY_NP     (pthread_key_t)(-1)
 140 
 141 /* barriers */
 142 #define PTHREAD_BARRIER_SERIAL_THREAD   -2
 143 
 144 #ifndef _ASM
 145 
 146 /*
 147  * cancellation cleanup structure
 148  */
 149 typedef struct _cleanup {
 150         uintptr_t       pthread_cleanup_pad[4];
 151 } _cleanup_t;
 152 
 153 #ifdef  __STDC__
 154 
 155 void    __pthread_cleanup_push(void (*)(void *), void *, caddr_t, _cleanup_t *);
 156 void    __pthread_cleanup_pop(int, _cleanup_t *);
 157 caddr_t _getfp(void);
 158 
 159 #else   /* __STDC__ */
 160 
 161 void    __pthread_cleanup_push();
 162 void    __pthread_cleanup_pop();
 163 caddr_t _getfp();
 164 
 165 #endif  /* __STDC__ */
 166 
 167 #if __cplusplus
 168 extern "C" {
 169 #endif
 170 
 171 typedef void (*_Voidfp)(void*); /* pointer to extern "C" function */
 172 
 173 #if __cplusplus
 174 } /* extern "C" */
 175 #endif
 176 
 177 #define pthread_cleanup_push(routine, args) { \
 178         _cleanup_t _cleanup_info; \
 179         __pthread_cleanup_push((_Voidfp)(routine), (void *)(args), \
 180                                 (caddr_t)_getfp(), &_cleanup_info);
 181 
 182 #define pthread_cleanup_pop(ex) \
 183         __pthread_cleanup_pop(ex, &_cleanup_info); \
 184 }
 185 
 186 #ifdef  __STDC__
 187 
 188 /*
 189  * function prototypes - thread related calls
 190  */
 191 
 192 /*
 193  * pthread_atfork() is also declared in <unistd.h> as per SUSv2. The
 194  * declarations are identical. A change to either one may also require
 195  * appropriate namespace updates in order to avoid redeclaration
 196  * warnings in the case where both prototypes are exposed via inclusion
 197  * of both <pthread.h> and <unistd.h>.
 198  */
 199 extern int pthread_atfork(void (*) (void), void (*) (void), void (*) (void));
 200 extern int pthread_attr_init(pthread_attr_t *);
 201 extern int pthread_attr_destroy(pthread_attr_t *);
 202 extern int pthread_attr_setstack(pthread_attr_t *, void *, size_t);
 203 extern int pthread_attr_getstack(const pthread_attr_t *_RESTRICT_KYWD,
 204                 void **_RESTRICT_KYWD, size_t *_RESTRICT_KYWD);
 205 extern int pthread_attr_setstacksize(pthread_attr_t *, size_t);
 206 extern int pthread_attr_getstacksize(const pthread_attr_t *_RESTRICT_KYWD,
 207                 size_t *_RESTRICT_KYWD);
 208 extern int pthread_attr_setstackaddr(pthread_attr_t *, void *);
 209 extern int pthread_attr_getstackaddr(const pthread_attr_t *_RESTRICT_KYWD,
 210                 void **_RESTRICT_KYWD);
 211 extern int pthread_attr_setdetachstate(pthread_attr_t *, int);
 212 extern int pthread_attr_getdetachstate(const pthread_attr_t *, int *);
 213 extern int pthread_attr_setscope(pthread_attr_t *, int);
 214 extern int pthread_attr_getscope(const pthread_attr_t *_RESTRICT_KYWD,
 215         int *_RESTRICT_KYWD);
 216 extern int pthread_attr_setinheritsched(pthread_attr_t *, int);
 217 extern int pthread_attr_getinheritsched(const pthread_attr_t *_RESTRICT_KYWD,
 218         int *_RESTRICT_KYWD);
 219 extern int pthread_attr_setschedpolicy(pthread_attr_t *, int);
 220 extern int pthread_attr_getschedpolicy(const pthread_attr_t *_RESTRICT_KYWD,
 221         int *_RESTRICT_KYWD);
 222 extern int pthread_attr_setschedparam(pthread_attr_t *_RESTRICT_KYWD,
 223                 const struct sched_param *_RESTRICT_KYWD);
 224 extern int pthread_attr_getschedparam(const pthread_attr_t *_RESTRICT_KYWD,
 225                 struct sched_param *_RESTRICT_KYWD);
 226 extern int pthread_create(pthread_t *_RESTRICT_KYWD,
 227                 const pthread_attr_t *_RESTRICT_KYWD, void * (*)(void *),
 228                 void *_RESTRICT_KYWD);
 229 extern int pthread_once(pthread_once_t *, void (*)(void));
 230 extern int pthread_join(pthread_t, void **);
 231 extern int pthread_detach(pthread_t);
 232 extern void pthread_exit(void *) __NORETURN;
 233 extern int pthread_cancel(pthread_t);
 234 extern int pthread_setschedparam(pthread_t, int, const struct sched_param *);
 235 extern int pthread_getschedparam(pthread_t, int *_RESTRICT_KYWD,
 236                 struct sched_param *_RESTRICT_KYWD);
 237 extern int pthread_setschedprio(pthread_t, int);
 238 extern int pthread_setcancelstate(int, int *);
 239 extern int pthread_setcanceltype(int, int *);
 240 extern void pthread_testcancel(void);
 241 extern int pthread_equal(pthread_t, pthread_t);
 242 extern int pthread_key_create(pthread_key_t *, void (*)(void *));
 243 extern int pthread_key_create_once_np(pthread_key_t *, void (*)(void *));
 244 extern int pthread_key_delete(pthread_key_t);
 245 extern int pthread_setspecific(pthread_key_t, const void *);
 246 extern void *pthread_getspecific(pthread_key_t);
 247 extern pthread_t pthread_self(void);
 248 
 249 /*
 250  * function prototypes - synchronization related calls
 251  */
 252 extern int pthread_mutexattr_init(pthread_mutexattr_t *);
 253 extern int pthread_mutexattr_destroy(pthread_mutexattr_t *);
 254 extern int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int);
 255 extern int pthread_mutexattr_getpshared(
 256         const pthread_mutexattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 257 extern int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int);
 258 extern int pthread_mutexattr_getprotocol(
 259         const pthread_mutexattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 260 extern int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *, int);
 261 extern int pthread_mutexattr_getprioceiling(
 262         const pthread_mutexattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 263 extern int pthread_mutexattr_setrobust(pthread_mutexattr_t *, int);
 264 extern int pthread_mutexattr_getrobust(
 265         const pthread_mutexattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 266 extern int pthread_mutex_init(pthread_mutex_t *_RESTRICT_KYWD,
 267         const pthread_mutexattr_t *_RESTRICT_KYWD);
 268 extern int pthread_mutex_consistent(pthread_mutex_t *);
 269 extern int pthread_mutex_destroy(pthread_mutex_t *);
 270 extern int pthread_mutex_lock(pthread_mutex_t *);
 271 extern int pthread_mutex_timedlock(pthread_mutex_t *_RESTRICT_KYWD,
 272         const struct timespec *_RESTRICT_KYWD);
 273 extern int pthread_mutex_reltimedlock_np(pthread_mutex_t *_RESTRICT_KYWD,
 274         const struct timespec *_RESTRICT_KYWD);
 275 extern int pthread_mutex_unlock(pthread_mutex_t *);
 276 extern int pthread_mutex_trylock(pthread_mutex_t *);
 277 extern int pthread_mutex_setprioceiling(pthread_mutex_t *_RESTRICT_KYWD,
 278         int, int *_RESTRICT_KYWD);
 279 extern int pthread_mutex_getprioceiling(const pthread_mutex_t *_RESTRICT_KYWD,
 280         int *_RESTRICT_KYWD);
 281 extern int pthread_condattr_init(pthread_condattr_t *);
 282 extern int pthread_condattr_destroy(pthread_condattr_t *);
 283 extern int pthread_condattr_setclock(pthread_condattr_t *, clockid_t);
 284 extern int pthread_condattr_getclock(const pthread_condattr_t *_RESTRICT_KYWD,
 285         clockid_t *_RESTRICT_KYWD);
 286 extern int pthread_condattr_setpshared(pthread_condattr_t *, int);
 287 extern int pthread_condattr_getpshared(const pthread_condattr_t *_RESTRICT_KYWD,
 288         int *_RESTRICT_KYWD);
 289 extern int pthread_cond_init(pthread_cond_t *_RESTRICT_KYWD,
 290         const pthread_condattr_t *_RESTRICT_KYWD);
 291 extern int pthread_cond_destroy(pthread_cond_t *);
 292 extern int pthread_cond_broadcast(pthread_cond_t *);
 293 extern int pthread_cond_signal(pthread_cond_t *);
 294 extern int pthread_cond_wait(pthread_cond_t *_RESTRICT_KYWD,
 295         pthread_mutex_t *_RESTRICT_KYWD);
 296 extern int pthread_cond_timedwait(pthread_cond_t *_RESTRICT_KYWD,
 297         pthread_mutex_t *_RESTRICT_KYWD, const struct timespec *_RESTRICT_KYWD);
 298 extern int pthread_cond_reltimedwait_np(pthread_cond_t *_RESTRICT_KYWD,
 299         pthread_mutex_t *_RESTRICT_KYWD, const struct timespec *_RESTRICT_KYWD);
 300 extern int pthread_attr_getguardsize(const pthread_attr_t *_RESTRICT_KYWD,
 301         size_t *_RESTRICT_KYWD);
 302 extern int pthread_attr_setguardsize(pthread_attr_t *, size_t);
 303 extern int pthread_getconcurrency(void);
 304 extern int pthread_setconcurrency(int);
 305 extern int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
 306 extern int pthread_mutexattr_gettype(const pthread_mutexattr_t *_RESTRICT_KYWD,
 307         int *_RESTRICT_KYWD);
 308 extern int pthread_rwlock_init(pthread_rwlock_t *_RESTRICT_KYWD,
 309         const pthread_rwlockattr_t *_RESTRICT_KYWD);
 310 extern int pthread_rwlock_destroy(pthread_rwlock_t *);
 311 extern int pthread_rwlock_rdlock(pthread_rwlock_t *);
 312 extern int pthread_rwlock_timedrdlock(pthread_rwlock_t *_RESTRICT_KYWD,
 313         const struct timespec *_RESTRICT_KYWD);
 314 extern int pthread_rwlock_reltimedrdlock_np(pthread_rwlock_t *_RESTRICT_KYWD,
 315         const struct timespec *_RESTRICT_KYWD);
 316 extern int pthread_rwlock_tryrdlock(pthread_rwlock_t *);
 317 extern int pthread_rwlock_wrlock(pthread_rwlock_t *);
 318 extern int pthread_rwlock_timedwrlock(pthread_rwlock_t *_RESTRICT_KYWD,
 319         const struct timespec *_RESTRICT_KYWD);
 320 extern int pthread_rwlock_reltimedwrlock_np(pthread_rwlock_t *_RESTRICT_KYWD,
 321         const struct timespec *_RESTRICT_KYWD);
 322 extern int pthread_rwlock_trywrlock(pthread_rwlock_t *);
 323 extern int pthread_rwlock_unlock(pthread_rwlock_t *);
 324 extern int pthread_rwlockattr_init(pthread_rwlockattr_t *);
 325 extern int pthread_rwlockattr_destroy(pthread_rwlockattr_t *);
 326 extern int pthread_rwlockattr_getpshared(
 327         const pthread_rwlockattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 328 extern int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
 329 extern int pthread_spin_init(pthread_spinlock_t *, int);
 330 extern int pthread_spin_destroy(pthread_spinlock_t *);
 331 extern int pthread_spin_lock(pthread_spinlock_t *);
 332 extern int pthread_spin_trylock(pthread_spinlock_t *);
 333 extern int pthread_spin_unlock(pthread_spinlock_t *);
 334 extern int pthread_barrierattr_init(pthread_barrierattr_t *);
 335 extern int pthread_barrierattr_destroy(pthread_barrierattr_t *);
 336 extern int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);
 337 extern int pthread_barrierattr_getpshared(
 338         const pthread_barrierattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 339 extern int pthread_barrier_init(pthread_barrier_t *_RESTRICT_KYWD,
 340         const pthread_barrierattr_t *_RESTRICT_KYWD, uint_t);
 341 extern int pthread_barrier_destroy(pthread_barrier_t *);
 342 extern int pthread_barrier_wait(pthread_barrier_t *);
 343 
 344 /* Historical names -- present only for binary compatibility */
 345 extern int pthread_mutex_consistent_np(pthread_mutex_t *);
 346 extern int pthread_mutexattr_setrobust_np(pthread_mutexattr_t *, int);
 347 extern int pthread_mutexattr_getrobust_np(
 348         const pthread_mutexattr_t *_RESTRICT_KYWD, int *_RESTRICT_KYWD);
 349 
 350 #else   /* __STDC__ */
 351 
 352 /*
 353  * function prototypes - thread related calls
 354  */
 355 extern int pthread_atfork();
 356 extern int pthread_attr_init();
 357 extern int pthread_attr_destroy();
 358 extern int pthread_attr_setstack();
 359 extern int pthread_attr_getstack();
 360 extern int pthread_attr_setstacksize();
 361 extern int pthread_attr_getstacksize();
 362 extern int pthread_attr_setstackaddr();
 363 extern int pthread_attr_getstackaddr();
 364 extern int pthread_attr_setdetachstate();
 365 extern int pthread_attr_getdetachstate();
 366 extern int pthread_attr_setscope();
 367 extern int pthread_attr_getscope();
 368 extern int pthread_attr_setinheritsched();
 369 extern int pthread_attr_getinheritsched();
 370 extern int pthread_attr_setschedpolicy();
 371 extern int pthread_attr_getschedpolicy();
 372 extern int pthread_attr_setschedparam();
 373 extern int pthread_attr_getschedparam();
 374 extern int pthread_create();
 375 extern int pthread_once();
 376 extern int pthread_join();
 377 extern int pthread_detach();
 378 extern void pthread_exit();
 379 extern int pthread_cancel();
 380 extern int pthread_setschedparam();
 381 extern int pthread_getschedparam();
 382 extern int pthread_setschedprio();
 383 extern int pthread_setcancelstate();
 384 extern int pthread_setcanceltype();
 385 extern void pthread_testcancel();
 386 extern int pthread_equal();
 387 extern int pthread_key_create();
 388 extern int pthread_key_create_once_np();
 389 extern int pthread_key_delete();
 390 extern int pthread_setspecific();
 391 extern void *pthread_getspecific();
 392 extern pthread_t pthread_self();
 393 /*
 394  * function prototypes - synchronization related calls
 395  */
 396 extern int pthread_mutexattr_init();
 397 extern int pthread_mutexattr_destroy();
 398 extern int pthread_mutexattr_setpshared();
 399 extern int pthread_mutexattr_getpshared();
 400 extern int pthread_mutexattr_setprotocol();
 401 extern int pthread_mutexattr_getprotocol();
 402 extern int pthread_mutexattr_setprioceiling();
 403 extern int pthread_mutexattr_getprioceiling();
 404 extern int pthread_mutexattr_setrobust();
 405 extern int pthread_mutexattr_getrobust();
 406 extern int pthread_mutex_init();
 407 extern int pthread_mutex_consistent();
 408 extern int pthread_mutex_destroy();
 409 extern int pthread_mutex_lock();
 410 extern int pthread_mutex_timedlock();
 411 extern int pthread_mutex_reltimedlock_np();
 412 extern int pthread_mutex_unlock();
 413 extern int pthread_mutex_trylock();
 414 extern int pthread_mutex_setprioceiling();
 415 extern int pthread_mutex_getprioceiling();
 416 extern int pthread_condattr_init();
 417 extern int pthread_condattr_destroy();
 418 extern int pthread_condattr_setclock();
 419 extern int pthread_condattr_getclock();
 420 extern int pthread_condattr_setpshared();
 421 extern int pthread_condattr_getpshared();
 422 extern int pthread_cond_init();
 423 extern int pthread_cond_destroy();
 424 extern int pthread_cond_broadcast();
 425 extern int pthread_cond_signal();
 426 extern int pthread_cond_wait();
 427 extern int pthread_cond_timedwait();
 428 extern int pthread_cond_reltimedwait_np();
 429 extern int pthread_attr_getguardsize();
 430 extern int pthread_attr_setguardsize();
 431 extern int pthread_getconcurrency();
 432 extern int pthread_setconcurrency();
 433 extern int pthread_mutexattr_settype();
 434 extern int pthread_mutexattr_gettype();
 435 extern int pthread_rwlock_init();
 436 extern int pthread_rwlock_destroy();
 437 extern int pthread_rwlock_rdlock();
 438 extern int pthread_rwlock_tryrdlock();
 439 extern int pthread_rwlock_wrlock();
 440 extern int pthread_rwlock_trywrlock();
 441 extern int pthread_rwlock_unlock();
 442 extern int pthread_rwlockattr_init();
 443 extern int pthread_rwlockattr_destroy();
 444 extern int pthread_rwlockattr_getpshared();
 445 extern int pthread_rwlockattr_setpshared();
 446 extern int pthread_spin_init();
 447 extern int pthread_spin_destroy();
 448 extern int pthread_spin_lock();
 449 extern int pthread_spin_trylock();
 450 extern int pthread_spin_unlock();
 451 extern int pthread_barrierattr_init();
 452 extern int pthread_barrierattr_destroy();
 453 extern int pthread_barrierattr_setpshared();
 454 extern int pthread_barrierattr_getpshared();
 455 extern int pthread_barrier_init();
 456 extern int pthread_barrier_destroy();
 457 extern int pthread_barrier_wait();
 458 
 459 /* Historical names -- present only for binary compatibility */
 460 extern int pthread_mutex_consistent_np();
 461 extern int pthread_mutexattr_setrobust_np();
 462 extern int pthread_mutexattr_getrobust_np();
 463 
 464 #endif  /* __STDC__ */
 465 
 466 #endif  /* _ASM */
 467 
 468 #ifdef  __cplusplus
 469 }
 470 #endif
 471 
 472 #endif  /* _PTHREAD_H */