1 /* Threads compatibility routines for libgcc2 and libobjc. */ 2 /* Compile this one with gcc. */ 3 /* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 4 2008, 2009 Free Software Foundation, Inc. 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify it under 9 the terms of the GNU General Public License as published by the Free 10 Software Foundation; either version 3, or (at your option) any later 11 version. 12 13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 14 WARRANTY; without even the implied warranty of MERCHANTABILITY or 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 16 for more details. 17 18 Under Section 7 of GPL version 3, you are granted additional 19 permissions described in the GCC Runtime Library Exception, version 20 3.1, as published by the Free Software Foundation. 21 22 You should have received a copy of the GNU General Public License and 23 a copy of the GCC Runtime Library Exception along with this program; 24 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 25 <http://www.gnu.org/licenses/>. */ 26 27 #ifndef _GLIBCXX_GCC_GTHR_POSIX_H 28 #define _GLIBCXX_GCC_GTHR_POSIX_H 29 30 /* POSIX threads specific definitions. 31 Easy, since the interface is just one-to-one mapping. */ 32 33 #define __GTHREADS 1 34 #define __GTHREADS_CXX0X 1 35 36 /* Some implementations of <pthread.h> require this to be defined. */ 37 #if !defined(_REENTRANT) && defined(__osf__) 38 #define _REENTRANT 1 39 #endif 40 41 #include <pthread.h> 42 #include <unistd.h> 43 44 typedef pthread_t __gthread_t; 45 typedef pthread_key_t __gthread_key_t; 46 typedef pthread_once_t __gthread_once_t; 47 typedef pthread_mutex_t __gthread_mutex_t; 48 typedef pthread_mutex_t __gthread_recursive_mutex_t; 49 typedef pthread_cond_t __gthread_cond_t; 50 typedef struct timespec __gthread_time_t; 51 52 /* POSIX like conditional variables are supported. Please look at comments 53 in gthr.h for details. */ 54 #define __GTHREAD_HAS_COND 1 55 56 #define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 57 #define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT 58 #if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER) 59 #define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER 60 #elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) 61 #define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP 62 #else 63 #define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function 64 #endif 65 #define __GTHREAD_COND_INIT PTHREAD_COND_INITIALIZER 66 #define __GTHREAD_TIME_INIT {0,0} 67 68 #if __GXX_WEAK__ && _GLIBCXX_GTHREAD_USE_WEAK 69 # ifndef __gthrw_pragma 70 # define __gthrw_pragma(pragma) 71 # endif 72 # define __gthrw2(name,name2,type) \ 73 static __typeof(type) name __attribute__ ((__weakref__(#name2))); \ 74 __gthrw_pragma(weak type) 75 # define __gthrw_(name) __gthrw_ ## name 76 #else 77 # define __gthrw2(name,name2,type) 78 # define __gthrw_(name) name 79 #endif 80 81 /* Typically, __gthrw_foo is a weak reference to symbol foo. */ 82 #define __gthrw(name) __gthrw2(__gthrw_ ## name,name,name) 83 84 /* On Tru64, /usr/include/pthread.h uses #pragma extern_prefix "__" to 85 map a subset of the POSIX pthread API to mangled versions of their 86 names. */ 87 #if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_) 88 #define __gthrw3(name) __gthrw2(__gthrw_ ## name, __ ## name, name) 89 __gthrw3(pthread_once) 90 __gthrw3(pthread_getspecific) 91 __gthrw3(pthread_setspecific) 92 93 __gthrw3(pthread_create) 94 __gthrw3(pthread_join) 95 __gthrw3(pthread_detach) 96 __gthrw3(pthread_equal) 97 __gthrw3(pthread_self) 98 __gthrw3(pthread_cancel) 99 __gthrw3(sched_yield) 100 101 __gthrw3(pthread_mutex_lock) 102 __gthrw3(pthread_mutex_trylock) 103 #ifdef _POSIX_TIMEOUTS 104 #if _POSIX_TIMEOUTS >= 0 105 __gthrw3(pthread_mutex_timedlock) 106 #endif 107 #endif /* _POSIX_TIMEOUTS */ 108 __gthrw3(pthread_mutex_unlock) 109 __gthrw3(pthread_mutex_init) 110 __gthrw3(pthread_mutex_destroy) 111 112 __gthrw3(pthread_cond_broadcast) 113 __gthrw3(pthread_cond_signal) 114 __gthrw3(pthread_cond_wait) 115 __gthrw3(pthread_cond_timedwait) 116 __gthrw3(pthread_cond_destroy) 117 #else 118 __gthrw(pthread_once) 119 __gthrw(pthread_getspecific) 120 __gthrw(pthread_setspecific) 121 122 __gthrw(pthread_create) 123 __gthrw(pthread_join) 124 __gthrw(pthread_equal) 125 __gthrw(pthread_self) 126 __gthrw(pthread_detach) 127 #ifndef __BIONIC__ 128 __gthrw(pthread_cancel) 129 #endif 130 __gthrw(sched_yield) 131 132 __gthrw(pthread_mutex_lock) 133 __gthrw(pthread_mutex_trylock) 134 #ifdef _POSIX_TIMEOUTS 135 #if _POSIX_TIMEOUTS >= 0 136 __gthrw(pthread_mutex_timedlock) 137 #endif 138 #endif /* _POSIX_TIMEOUTS */ 139 __gthrw(pthread_mutex_unlock) 140 __gthrw(pthread_mutex_init) 141 __gthrw(pthread_mutex_destroy) 142 143 __gthrw(pthread_cond_broadcast) 144 __gthrw(pthread_cond_signal) 145 __gthrw(pthread_cond_wait) 146 __gthrw(pthread_cond_timedwait) 147 __gthrw(pthread_cond_destroy) 148 #endif 149 150 __gthrw(pthread_key_create) 151 __gthrw(pthread_key_delete) 152 __gthrw(pthread_mutexattr_init) 153 __gthrw(pthread_mutexattr_settype) 154 __gthrw(pthread_mutexattr_destroy) 155 156 157 #if defined(_LIBOBJC) || defined(_LIBOBJC_WEAK) 158 /* Objective-C. */ 159 #if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_) 160 __gthrw3(pthread_cond_init) 161 __gthrw3(pthread_exit) 162 #else 163 __gthrw(pthread_cond_init) 164 __gthrw(pthread_exit) 165 #endif /* __osf__ && _PTHREAD_USE_MANGLED_NAMES_ */ 166 #ifdef _POSIX_PRIORITY_SCHEDULING 167 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 168 __gthrw(sched_get_priority_max) 169 __gthrw(sched_get_priority_min) 170 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 171 #endif /* _POSIX_PRIORITY_SCHEDULING */ 172 __gthrw(pthread_attr_destroy) 173 __gthrw(pthread_attr_init) 174 __gthrw(pthread_attr_setdetachstate) 175 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 176 __gthrw(pthread_getschedparam) 177 __gthrw(pthread_setschedparam) 178 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 179 #endif /* _LIBOBJC || _LIBOBJC_WEAK */ 180 181 #if __GXX_WEAK__ && _GLIBCXX_GTHREAD_USE_WEAK 182 183 /* On Solaris 2.6 up to 9, the libc exposes a POSIX threads interface even if 184 -pthreads is not specified. The functions are dummies and most return an 185 error value. However pthread_once returns 0 without invoking the routine 186 it is passed so we cannot pretend that the interface is active if -pthreads 187 is not specified. On Solaris 2.5.1, the interface is not exposed at all so 188 we need to play the usual game with weak symbols. On Solaris 10 and up, a 189 working interface is always exposed. On FreeBSD 6 and later, libc also 190 exposes a dummy POSIX threads interface, similar to what Solaris 2.6 up 191 to 9 does. FreeBSD >= 700014 even provides a pthread_cancel stub in libc, 192 which means the alternate __gthread_active_p below cannot be used there. */ 193 194 #if defined(__FreeBSD__) || (defined(__sun) && defined(__svr4__)) 195 196 static volatile int __gthread_active = -1; 197 198 static void 199 __gthread_trigger (void) 200 { 201 __gthread_active = 1; 202 } 203 204 static inline int 205 __gthread_active_p (void) 206 { 207 static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER; 208 static pthread_once_t __gthread_active_once = PTHREAD_ONCE_INIT; 209 210 /* Avoid reading __gthread_active twice on the main code path. */ 211 int __gthread_active_latest_value = __gthread_active; 212 213 /* This test is not protected to avoid taking a lock on the main code 214 path so every update of __gthread_active in a threaded program must 215 be atomic with regard to the result of the test. */ 216 if (__builtin_expect (__gthread_active_latest_value < 0, 0)) 217 { 218 if (__gthrw_(pthread_once)) 219 { 220 /* If this really is a threaded program, then we must ensure that 221 __gthread_active has been set to 1 before exiting this block. */ 222 __gthrw_(pthread_mutex_lock) (&__gthread_active_mutex); 223 __gthrw_(pthread_once) (&__gthread_active_once, __gthread_trigger); 224 __gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex); 225 } 226 227 /* Make sure we'll never enter this block again. */ 228 if (__gthread_active < 0) 229 __gthread_active = 0; 230 231 __gthread_active_latest_value = __gthread_active; 232 } 233 234 return __gthread_active_latest_value != 0; 235 } 236 237 #else /* neither FreeBSD nor Solaris */ 238 239 static inline int 240 __gthread_active_p (void) 241 { 242 static void *const __gthread_active_ptr 243 = __extension__ (void *) &__gthrw_( 244 /* Android's C library does not provide pthread_cancel, check for 245 `pthread_create' instead. */ 246 #ifndef __BIONIC__ 247 pthread_cancel 248 #else 249 pthread_create 250 #endif 251 ); 252 return __gthread_active_ptr != 0; 253 } 254 255 #endif /* FreeBSD or Solaris */ 256 257 #else /* not __GXX_WEAK__ */ 258 259 /* Similar to Solaris, HP-UX 11 for PA-RISC provides stubs for pthread 260 calls in shared flavors of the HP-UX C library. Most of the stubs 261 have no functionality. The details are described in the "libc cumulative 262 patch" for each subversion of HP-UX 11. There are two special interfaces 263 provided for checking whether an application is linked to a pthread 264 library or not. However, these interfaces aren't available in early 265 libc versions. We also can't use pthread_once as some libc versions 266 call the init function. So, we use pthread_create to check whether it 267 is possible to create a thread or not. The stub implementation returns 268 the error number ENOSYS. */ 269 270 #if defined(__hppa__) && defined(__hpux__) 271 272 #include <errno.h> 273 274 static volatile int __gthread_active = -1; 275 276 static void * 277 __gthread_start (void *__arg __attribute__((unused))) 278 { 279 return NULL; 280 } 281 282 static void __gthread_active_init (void) __attribute__((noinline)); 283 static void 284 __gthread_active_init (void) 285 { 286 static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER; 287 pthread_t __t; 288 pthread_attr_t __a; 289 int __result; 290 291 __gthrw_(pthread_mutex_lock) (&__gthread_active_mutex); 292 if (__gthread_active < 0) 293 { 294 __gthrw_(pthread_attr_init) (&__a); 295 __gthrw_(pthread_attr_setdetachstate) (&__a, PTHREAD_CREATE_DETACHED); 296 __result = __gthrw_(pthread_create) (&__t, &__a, __gthread_start, NULL); 297 if (__result != ENOSYS) 298 __gthread_active = 1; 299 else 300 __gthread_active = 0; 301 __gthrw_(pthread_attr_destroy) (&__a); 302 } 303 __gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex); 304 } 305 306 static inline int 307 __gthread_active_p (void) 308 { 309 /* Avoid reading __gthread_active twice on the main code path. */ 310 int __gthread_active_latest_value = __gthread_active; 311 312 /* This test is not protected to avoid taking a lock on the main code 313 path so every update of __gthread_active in a threaded program must 314 be atomic with regard to the result of the test. */ 315 if (__builtin_expect (__gthread_active_latest_value < 0, 0)) 316 { 317 __gthread_active_init (); 318 __gthread_active_latest_value = __gthread_active; 319 } 320 321 return __gthread_active_latest_value != 0; 322 } 323 324 #else /* not hppa-hpux */ 325 326 static inline int 327 __gthread_active_p (void) 328 { 329 return 1; 330 } 331 332 #endif /* hppa-hpux */ 333 334 #endif /* __GXX_WEAK__ */ 335 336 #ifdef _LIBOBJC 337 338 /* This is the config.h file in libobjc/ */ 339 #include <config.h> 340 341 #ifdef HAVE_SCHED_H 342 # include <sched.h> 343 #endif 344 345 /* Key structure for maintaining thread specific storage */ 346 static pthread_key_t _objc_thread_storage; 347 static pthread_attr_t _objc_thread_attribs; 348 349 /* Thread local storage for a single thread */ 350 static void *thread_local_storage = NULL; 351 352 /* Backend initialization functions */ 353 354 /* Initialize the threads subsystem. */ 355 static inline int 356 __gthread_objc_init_thread_system (void) 357 { 358 if (__gthread_active_p ()) 359 { 360 /* Initialize the thread storage key. */ 361 if (__gthrw_(pthread_key_create) (&_objc_thread_storage, NULL) == 0) 362 { 363 /* The normal default detach state for threads is 364 * PTHREAD_CREATE_JOINABLE which causes threads to not die 365 * when you think they should. */ 366 if (__gthrw_(pthread_attr_init) (&_objc_thread_attribs) == 0 367 && __gthrw_(pthread_attr_setdetachstate) (&_objc_thread_attribs, 368 PTHREAD_CREATE_DETACHED) == 0) 369 return 0; 370 } 371 } 372 373 return -1; 374 } 375 376 /* Close the threads subsystem. */ 377 static inline int 378 __gthread_objc_close_thread_system (void) 379 { 380 if (__gthread_active_p () 381 && __gthrw_(pthread_key_delete) (_objc_thread_storage) == 0 382 && __gthrw_(pthread_attr_destroy) (&_objc_thread_attribs) == 0) 383 return 0; 384 385 return -1; 386 } 387 388 /* Backend thread functions */ 389 390 /* Create a new thread of execution. */ 391 static inline objc_thread_t 392 __gthread_objc_thread_detach (void (*func)(void *), void *arg) 393 { 394 objc_thread_t thread_id; 395 pthread_t new_thread_handle; 396 397 if (!__gthread_active_p ()) 398 return NULL; 399 400 if (!(__gthrw_(pthread_create) (&new_thread_handle, NULL, (void *) func, arg))) 401 thread_id = (objc_thread_t) new_thread_handle; 402 else 403 thread_id = NULL; 404 405 return thread_id; 406 } 407 408 /* Set the current thread's priority. */ 409 static inline int 410 __gthread_objc_thread_set_priority (int priority) 411 { 412 if (!__gthread_active_p ()) 413 return -1; 414 else 415 { 416 #ifdef _POSIX_PRIORITY_SCHEDULING 417 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 418 pthread_t thread_id = __gthrw_(pthread_self) (); 419 int policy; 420 struct sched_param params; 421 int priority_min, priority_max; 422 423 if (__gthrw_(pthread_getschedparam) (thread_id, &policy, ¶ms) == 0) 424 { 425 if ((priority_max = __gthrw_(sched_get_priority_max) (policy)) == -1) 426 return -1; 427 428 if ((priority_min = __gthrw_(sched_get_priority_min) (policy)) == -1) 429 return -1; 430 431 if (priority > priority_max) 432 priority = priority_max; 433 else if (priority < priority_min) 434 priority = priority_min; 435 params.sched_priority = priority; 436 437 /* 438 * The solaris 7 and several other man pages incorrectly state that 439 * this should be a pointer to policy but pthread.h is universally 440 * at odds with this. 441 */ 442 if (__gthrw_(pthread_setschedparam) (thread_id, policy, ¶ms) == 0) 443 return 0; 444 } 445 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 446 #endif /* _POSIX_PRIORITY_SCHEDULING */ 447 return -1; 448 } 449 } 450 451 /* Return the current thread's priority. */ 452 static inline int 453 __gthread_objc_thread_get_priority (void) 454 { 455 #ifdef _POSIX_PRIORITY_SCHEDULING 456 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 457 if (__gthread_active_p ()) 458 { 459 int policy; 460 struct sched_param params; 461 462 if (__gthrw_(pthread_getschedparam) (__gthrw_(pthread_self) (), &policy, ¶ms) == 0) 463 return params.sched_priority; 464 else 465 return -1; 466 } 467 else 468 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 469 #endif /* _POSIX_PRIORITY_SCHEDULING */ 470 return OBJC_THREAD_INTERACTIVE_PRIORITY; 471 } 472 473 /* Yield our process time to another thread. */ 474 static inline void 475 __gthread_objc_thread_yield (void) 476 { 477 if (__gthread_active_p ()) 478 __gthrw_(sched_yield) (); 479 } 480 481 /* Terminate the current thread. */ 482 static inline int 483 __gthread_objc_thread_exit (void) 484 { 485 if (__gthread_active_p ()) 486 /* exit the thread */ 487 __gthrw_(pthread_exit) (&__objc_thread_exit_status); 488 489 /* Failed if we reached here */ 490 return -1; 491 } 492 493 /* Returns an integer value which uniquely describes a thread. */ 494 static inline objc_thread_t 495 __gthread_objc_thread_id (void) 496 { 497 if (__gthread_active_p ()) 498 return (objc_thread_t) __gthrw_(pthread_self) (); 499 else 500 return (objc_thread_t) 1; 501 } 502 503 /* Sets the thread's local storage pointer. */ 504 static inline int 505 __gthread_objc_thread_set_data (void *value) 506 { 507 if (__gthread_active_p ()) 508 return __gthrw_(pthread_setspecific) (_objc_thread_storage, value); 509 else 510 { 511 thread_local_storage = value; 512 return 0; 513 } 514 } 515 516 /* Returns the thread's local storage pointer. */ 517 static inline void * 518 __gthread_objc_thread_get_data (void) 519 { 520 if (__gthread_active_p ()) 521 return __gthrw_(pthread_getspecific) (_objc_thread_storage); 522 else 523 return thread_local_storage; 524 } 525 526 /* Backend mutex functions */ 527 528 /* Allocate a mutex. */ 529 static inline int 530 __gthread_objc_mutex_allocate (objc_mutex_t mutex) 531 { 532 if (__gthread_active_p ()) 533 { 534 mutex->backend = objc_malloc (sizeof (pthread_mutex_t)); 535 536 if (__gthrw_(pthread_mutex_init) ((pthread_mutex_t *) mutex->backend, NULL)) 537 { 538 objc_free (mutex->backend); 539 mutex->backend = NULL; 540 return -1; 541 } 542 } 543 544 return 0; 545 } 546 547 /* Deallocate a mutex. */ 548 static inline int 549 __gthread_objc_mutex_deallocate (objc_mutex_t mutex) 550 { 551 if (__gthread_active_p ()) 552 { 553 int count; 554 555 /* 556 * Posix Threads specifically require that the thread be unlocked 557 * for __gthrw_(pthread_mutex_destroy) to work. 558 */ 559 560 do 561 { 562 count = __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend); 563 if (count < 0) 564 return -1; 565 } 566 while (count); 567 568 if (__gthrw_(pthread_mutex_destroy) ((pthread_mutex_t *) mutex->backend)) 569 return -1; 570 571 objc_free (mutex->backend); 572 mutex->backend = NULL; 573 } 574 return 0; 575 } 576 577 /* Grab a lock on a mutex. */ 578 static inline int 579 __gthread_objc_mutex_lock (objc_mutex_t mutex) 580 { 581 if (__gthread_active_p () 582 && __gthrw_(pthread_mutex_lock) ((pthread_mutex_t *) mutex->backend) != 0) 583 { 584 return -1; 585 } 586 587 return 0; 588 } 589 590 /* Try to grab a lock on a mutex. */ 591 static inline int 592 __gthread_objc_mutex_trylock (objc_mutex_t mutex) 593 { 594 if (__gthread_active_p () 595 && __gthrw_(pthread_mutex_trylock) ((pthread_mutex_t *) mutex->backend) != 0) 596 { 597 return -1; 598 } 599 600 return 0; 601 } 602 603 /* Unlock the mutex */ 604 static inline int 605 __gthread_objc_mutex_unlock (objc_mutex_t mutex) 606 { 607 if (__gthread_active_p () 608 && __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend) != 0) 609 { 610 return -1; 611 } 612 613 return 0; 614 } 615 616 /* Backend condition mutex functions */ 617 618 /* Allocate a condition. */ 619 static inline int 620 __gthread_objc_condition_allocate (objc_condition_t condition) 621 { 622 if (__gthread_active_p ()) 623 { 624 condition->backend = objc_malloc (sizeof (pthread_cond_t)); 625 626 if (__gthrw_(pthread_cond_init) ((pthread_cond_t *) condition->backend, NULL)) 627 { 628 objc_free (condition->backend); 629 condition->backend = NULL; 630 return -1; 631 } 632 } 633 634 return 0; 635 } 636 637 /* Deallocate a condition. */ 638 static inline int 639 __gthread_objc_condition_deallocate (objc_condition_t condition) 640 { 641 if (__gthread_active_p ()) 642 { 643 if (__gthrw_(pthread_cond_destroy) ((pthread_cond_t *) condition->backend)) 644 return -1; 645 646 objc_free (condition->backend); 647 condition->backend = NULL; 648 } 649 return 0; 650 } 651 652 /* Wait on the condition */ 653 static inline int 654 __gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex) 655 { 656 if (__gthread_active_p ()) 657 return __gthrw_(pthread_cond_wait) ((pthread_cond_t *) condition->backend, 658 (pthread_mutex_t *) mutex->backend); 659 else 660 return 0; 661 } 662 663 /* Wake up all threads waiting on this condition. */ 664 static inline int 665 __gthread_objc_condition_broadcast (objc_condition_t condition) 666 { 667 if (__gthread_active_p ()) 668 return __gthrw_(pthread_cond_broadcast) ((pthread_cond_t *) condition->backend); 669 else 670 return 0; 671 } 672 673 /* Wake up one thread waiting on this condition. */ 674 static inline int 675 __gthread_objc_condition_signal (objc_condition_t condition) 676 { 677 if (__gthread_active_p ()) 678 return __gthrw_(pthread_cond_signal) ((pthread_cond_t *) condition->backend); 679 else 680 return 0; 681 } 682 683 #else /* _LIBOBJC */ 684 685 static inline int 686 __gthread_create (__gthread_t *__threadid, void *(*__func) (void*), 687 void *__args) 688 { 689 return __gthrw_(pthread_create) (__threadid, NULL, __func, __args); 690 } 691 692 static inline int 693 __gthread_join (__gthread_t __threadid, void **__value_ptr) 694 { 695 return __gthrw_(pthread_join) (__threadid, __value_ptr); 696 } 697 698 static inline int 699 __gthread_detach (__gthread_t __threadid) 700 { 701 return __gthrw_(pthread_detach) (__threadid); 702 } 703 704 static inline int 705 __gthread_equal (__gthread_t __t1, __gthread_t __t2) 706 { 707 return __gthrw_(pthread_equal) (__t1, __t2); 708 } 709 710 static inline __gthread_t 711 __gthread_self (void) 712 { 713 return __gthrw_(pthread_self) (); 714 } 715 716 static inline int 717 __gthread_yield (void) 718 { 719 return __gthrw_(sched_yield) (); 720 } 721 722 static inline int 723 __gthread_once (__gthread_once_t *__once, void (*__func) (void)) 724 { 725 if (__gthread_active_p ()) 726 return __gthrw_(pthread_once) (__once, __func); 727 else 728 return -1; 729 } 730 731 static inline int 732 __gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *)) 733 { 734 return __gthrw_(pthread_key_create) (__key, __dtor); 735 } 736 737 static inline int 738 __gthread_key_delete (__gthread_key_t __key) 739 { 740 return __gthrw_(pthread_key_delete) (__key); 741 } 742 743 static inline void * 744 __gthread_getspecific (__gthread_key_t __key) 745 { 746 return __gthrw_(pthread_getspecific) (__key); 747 } 748 749 static inline int 750 __gthread_setspecific (__gthread_key_t __key, const void *__ptr) 751 { 752 return __gthrw_(pthread_setspecific) (__key, __ptr); 753 } 754 755 static inline int 756 __gthread_mutex_destroy (__gthread_mutex_t *__mutex) 757 { 758 if (__gthread_active_p ()) 759 return __gthrw_(pthread_mutex_destroy) (__mutex); 760 else 761 return 0; 762 } 763 764 static inline int 765 __gthread_mutex_lock (__gthread_mutex_t *__mutex) 766 { 767 if (__gthread_active_p ()) 768 return __gthrw_(pthread_mutex_lock) (__mutex); 769 else 770 return 0; 771 } 772 773 static inline int 774 __gthread_mutex_trylock (__gthread_mutex_t *__mutex) 775 { 776 if (__gthread_active_p ()) 777 return __gthrw_(pthread_mutex_trylock) (__mutex); 778 else 779 return 0; 780 } 781 782 #ifdef _POSIX_TIMEOUTS 783 #if _POSIX_TIMEOUTS >= 0 784 static inline int 785 __gthread_mutex_timedlock (__gthread_mutex_t *__mutex, 786 const __gthread_time_t *__abs_timeout) 787 { 788 if (__gthread_active_p ()) 789 return __gthrw_(pthread_mutex_timedlock) (__mutex, __abs_timeout); 790 else 791 return 0; 792 } 793 #endif 794 #endif 795 796 static inline int 797 __gthread_mutex_unlock (__gthread_mutex_t *__mutex) 798 { 799 if (__gthread_active_p ()) 800 return __gthrw_(pthread_mutex_unlock) (__mutex); 801 else 802 return 0; 803 } 804 805 #ifndef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP 806 static inline int 807 __gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex) 808 { 809 if (__gthread_active_p ()) 810 { 811 pthread_mutexattr_t __attr; 812 int __r; 813 814 __r = __gthrw_(pthread_mutexattr_init) (&__attr); 815 if (!__r) 816 __r = __gthrw_(pthread_mutexattr_settype) (&__attr, 817 PTHREAD_MUTEX_RECURSIVE); 818 if (!__r) 819 __r = __gthrw_(pthread_mutex_init) (__mutex, &__attr); 820 if (!__r) 821 __r = __gthrw_(pthread_mutexattr_destroy) (&__attr); 822 return __r; 823 } 824 return 0; 825 } 826 #endif 827 828 static inline int 829 __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex) 830 { 831 return __gthread_mutex_lock (__mutex); 832 } 833 834 static inline int 835 __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex) 836 { 837 return __gthread_mutex_trylock (__mutex); 838 } 839 840 #ifdef _POSIX_TIMEOUTS 841 #if _POSIX_TIMEOUTS >= 0 842 static inline int 843 __gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *__mutex, 844 const __gthread_time_t *__abs_timeout) 845 { 846 return __gthread_mutex_timedlock (__mutex, __abs_timeout); 847 } 848 #endif 849 #endif 850 851 static inline int 852 __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex) 853 { 854 return __gthread_mutex_unlock (__mutex); 855 } 856 857 static inline int 858 __gthread_cond_broadcast (__gthread_cond_t *__cond) 859 { 860 return __gthrw_(pthread_cond_broadcast) (__cond); 861 } 862 863 static inline int 864 __gthread_cond_signal (__gthread_cond_t *__cond) 865 { 866 return __gthrw_(pthread_cond_signal) (__cond); 867 } 868 869 static inline int 870 __gthread_cond_wait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex) 871 { 872 return __gthrw_(pthread_cond_wait) (__cond, __mutex); 873 } 874 875 static inline int 876 __gthread_cond_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex, 877 const __gthread_time_t *__abs_timeout) 878 { 879 return __gthrw_(pthread_cond_timedwait) (__cond, __mutex, __abs_timeout); 880 } 881 882 static inline int 883 __gthread_cond_wait_recursive (__gthread_cond_t *__cond, 884 __gthread_recursive_mutex_t *__mutex) 885 { 886 return __gthread_cond_wait (__cond, __mutex); 887 } 888 889 static inline int 890 __gthread_cond_timedwait_recursive (__gthread_cond_t *__cond, 891 __gthread_recursive_mutex_t *__mutex, 892 const __gthread_time_t *__abs_timeout) 893 { 894 return __gthread_cond_timedwait (__cond, __mutex, __abs_timeout); 895 } 896 897 static inline int 898 __gthread_cond_destroy (__gthread_cond_t* __cond) 899 { 900 return __gthrw_(pthread_cond_destroy) (__cond); 901 } 902 903 #endif /* _LIBOBJC */ 904 905 #endif /* ! _GLIBCXX_GCC_GTHR_POSIX_H */ 906
