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, 2010 Free Software Foundation, Inc. 5 6This file is part of GCC. 7 8GCC is free software; you can redistribute it and/or modify it under 9the terms of the GNU General Public License as published by the Free 10Software Foundation; either version 3, or (at your option) any later 11version. 12 13GCC is distributed in the hope that it will be useful, but WITHOUT ANY 14WARRANTY; without even the implied warranty of MERCHANTABILITY or 15FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 16for more details. 17 18Under Section 7 of GPL version 3, you are granted additional 19permissions described in the GCC Runtime Library Exception, version 203.1, as published by the Free Software Foundation. 21 22You should have received a copy of the GNU General Public License and 23a copy of the GCC Runtime Library Exception along with this program; 24see 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/* The following should normally be in a different header file, 42 * but I couldn't find the right location. The point of the macro 43 * definition below is to prevent libsupc++ and libstdc++ to reference 44 * weak symbols in their static C++ constructors. Such code crashes 45 * when a shared object linked statically to these libraries is 46 * loaded on Android 2.1 (Eclair) and older platform releases, due 47 * to a dynamic linker bug. 48 */ 49#ifdef __ANDROID__ 50#undef _GLIBCXX_GTHREAD_USE_WEAK 51#define _GLIBCXX_GTHREAD_USE_WEAK 0 52#endif 53 54#include <pthread.h> 55#include <unistd.h> 56 57typedef pthread_t __gthread_t; 58typedef pthread_key_t __gthread_key_t; 59typedef pthread_once_t __gthread_once_t; 60typedef pthread_mutex_t __gthread_mutex_t; 61typedef pthread_mutex_t __gthread_recursive_mutex_t; 62typedef pthread_cond_t __gthread_cond_t; 63typedef struct timespec __gthread_time_t; 64 65/* POSIX like conditional variables are supported. Please look at comments 66 in gthr.h for details. */ 67#define __GTHREAD_HAS_COND 1 68 69#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 70#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT 71#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER) 72#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER 73#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) 74#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP 75#else 76#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function 77#endif 78#define __GTHREAD_COND_INIT PTHREAD_COND_INITIALIZER 79#define __GTHREAD_TIME_INIT {0,0} 80 81#if __GXX_WEAK__ && _GLIBCXX_GTHREAD_USE_WEAK 82# ifndef __gthrw_pragma 83# define __gthrw_pragma(pragma) 84# endif 85# define __gthrw2(name,name2,type) \ 86 static __typeof(type) name __attribute__ ((__weakref__(#name2))); \ 87 __gthrw_pragma(weak type) 88# define __gthrw_(name) __gthrw_ ## name 89#else 90# define __gthrw2(name,name2,type) 91# define __gthrw_(name) name 92#endif 93 94/* Typically, __gthrw_foo is a weak reference to symbol foo. */ 95#define __gthrw(name) __gthrw2(__gthrw_ ## name,name,name) 96 97/* On Tru64, /usr/include/pthread.h uses #pragma extern_prefix "__" to 98 map a subset of the POSIX pthread API to mangled versions of their 99 names. */ 100#if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_) 101#define __gthrw3(name) __gthrw2(__gthrw_ ## name, __ ## name, name) 102__gthrw3(pthread_once) 103__gthrw3(pthread_getspecific) 104__gthrw3(pthread_setspecific) 105 106__gthrw3(pthread_create) 107__gthrw3(pthread_join) 108__gthrw3(pthread_detach) 109__gthrw3(pthread_equal) 110__gthrw3(pthread_self) 111__gthrw3(pthread_cancel) 112__gthrw3(sched_yield) 113 114__gthrw3(pthread_mutex_lock) 115__gthrw3(pthread_mutex_trylock) 116#ifdef _POSIX_TIMEOUTS 117#if _POSIX_TIMEOUTS >= 0 118__gthrw3(pthread_mutex_timedlock) 119#endif 120#endif /* _POSIX_TIMEOUTS */ 121__gthrw3(pthread_mutex_unlock) 122__gthrw3(pthread_mutex_init) 123__gthrw3(pthread_mutex_destroy) 124 125__gthrw3(pthread_cond_broadcast) 126__gthrw3(pthread_cond_signal) 127__gthrw3(pthread_cond_wait) 128__gthrw3(pthread_cond_timedwait) 129__gthrw3(pthread_cond_destroy) 130#else 131__gthrw(pthread_once) 132__gthrw(pthread_getspecific) 133__gthrw(pthread_setspecific) 134 135__gthrw(pthread_create) 136__gthrw(pthread_join) 137__gthrw(pthread_equal) 138__gthrw(pthread_self) 139__gthrw(pthread_detach) 140#ifndef __BIONIC__ 141__gthrw(pthread_cancel) 142#endif 143__gthrw(sched_yield) 144 145__gthrw(pthread_mutex_lock) 146__gthrw(pthread_mutex_trylock) 147#ifdef _POSIX_TIMEOUTS 148#if _POSIX_TIMEOUTS >= 0 149__gthrw(pthread_mutex_timedlock) 150#endif 151#endif /* _POSIX_TIMEOUTS */ 152__gthrw(pthread_mutex_unlock) 153__gthrw(pthread_mutex_init) 154__gthrw(pthread_mutex_destroy) 155 156__gthrw(pthread_cond_broadcast) 157__gthrw(pthread_cond_signal) 158__gthrw(pthread_cond_wait) 159__gthrw(pthread_cond_timedwait) 160__gthrw(pthread_cond_destroy) 161#endif 162 163__gthrw(pthread_key_create) 164__gthrw(pthread_key_delete) 165__gthrw(pthread_mutexattr_init) 166__gthrw(pthread_mutexattr_settype) 167__gthrw(pthread_mutexattr_destroy) 168 169 170#if defined(_LIBOBJC) || defined(_LIBOBJC_WEAK) 171/* Objective-C. */ 172#if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_) 173__gthrw3(pthread_cond_init) 174__gthrw3(pthread_exit) 175#else 176__gthrw(pthread_cond_init) 177__gthrw(pthread_exit) 178#endif /* __osf__ && _PTHREAD_USE_MANGLED_NAMES_ */ 179#ifdef _POSIX_PRIORITY_SCHEDULING 180#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 181__gthrw(sched_get_priority_max) 182__gthrw(sched_get_priority_min) 183#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 184#endif /* _POSIX_PRIORITY_SCHEDULING */ 185__gthrw(pthread_attr_destroy) 186__gthrw(pthread_attr_init) 187__gthrw(pthread_attr_setdetachstate) 188#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 189__gthrw(pthread_getschedparam) 190__gthrw(pthread_setschedparam) 191#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 192#endif /* _LIBOBJC || _LIBOBJC_WEAK */ 193 194#if __GXX_WEAK__ && _GLIBCXX_GTHREAD_USE_WEAK 195 196/* On Solaris 2.6 up to 9, the libc exposes a POSIX threads interface even if 197 -pthreads is not specified. The functions are dummies and most return an 198 error value. However pthread_once returns 0 without invoking the routine 199 it is passed so we cannot pretend that the interface is active if -pthreads 200 is not specified. On Solaris 2.5.1, the interface is not exposed at all so 201 we need to play the usual game with weak symbols. On Solaris 10 and up, a 202 working interface is always exposed. On FreeBSD 6 and later, libc also 203 exposes a dummy POSIX threads interface, similar to what Solaris 2.6 up 204 to 9 does. FreeBSD >= 700014 even provides a pthread_cancel stub in libc, 205 which means the alternate __gthread_active_p below cannot be used there. */ 206 207#if defined(__FreeBSD__) || (defined(__sun) && defined(__svr4__)) 208 209static volatile int __gthread_active = -1; 210 211static void 212__gthread_trigger (void) 213{ 214 __gthread_active = 1; 215} 216 217static inline int 218__gthread_active_p (void) 219{ 220 static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER; 221 static pthread_once_t __gthread_active_once = PTHREAD_ONCE_INIT; 222 223 /* Avoid reading __gthread_active twice on the main code path. */ 224 int __gthread_active_latest_value = __gthread_active; 225 226 /* This test is not protected to avoid taking a lock on the main code 227 path so every update of __gthread_active in a threaded program must 228 be atomic with regard to the result of the test. */ 229 if (__builtin_expect (__gthread_active_latest_value < 0, 0)) 230 { 231 if (__gthrw_(pthread_once)) 232 { 233 /* If this really is a threaded program, then we must ensure that 234 __gthread_active has been set to 1 before exiting this block. */ 235 __gthrw_(pthread_mutex_lock) (&__gthread_active_mutex); 236 __gthrw_(pthread_once) (&__gthread_active_once, __gthread_trigger); 237 __gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex); 238 } 239 240 /* Make sure we'll never enter this block again. */ 241 if (__gthread_active < 0) 242 __gthread_active = 0; 243 244 __gthread_active_latest_value = __gthread_active; 245 } 246 247 return __gthread_active_latest_value != 0; 248} 249 250#else /* neither FreeBSD nor Solaris */ 251 252static inline int 253__gthread_active_p (void) 254{ 255 static void *const __gthread_active_ptr 256 = __extension__ (void *) &__gthrw_( 257/* Android's C library does not provide pthread_cancel, check for 258 `pthread_create' instead. */ 259#ifndef __BIONIC__ 260 pthread_cancel 261#else 262 pthread_create 263#endif 264 ); 265 return __gthread_active_ptr != 0; 266} 267 268#endif /* FreeBSD or Solaris */ 269 270#else /* not __GXX_WEAK__ */ 271 272/* Similar to Solaris, HP-UX 11 for PA-RISC provides stubs for pthread 273 calls in shared flavors of the HP-UX C library. Most of the stubs 274 have no functionality. The details are described in the "libc cumulative 275 patch" for each subversion of HP-UX 11. There are two special interfaces 276 provided for checking whether an application is linked to a shared pthread 277 library or not. However, these interfaces aren't available in early 278 libpthread libraries. We also need a test that works for archive 279 libraries. We can't use pthread_once as some libc versions call the 280 init function. We also can't use pthread_create or pthread_attr_init 281 as these create a thread and thereby prevent changing the default stack 282 size. The function pthread_default_stacksize_np is available in both 283 the archive and shared versions of libpthread. It can be used to 284 determine the default pthread stack size. There is a stub in some 285 shared libc versions which returns a zero size if pthreads are not 286 active. We provide an equivalent stub to handle cases where libc 287 doesn't provide one. */ 288 289#if defined(__hppa__) && defined(__hpux__) 290 291static volatile int __gthread_active = -1; 292 293static inline int 294__gthread_active_p (void) 295{ 296 /* Avoid reading __gthread_active twice on the main code path. */ 297 int __gthread_active_latest_value = __gthread_active; 298 size_t __s; 299 300 if (__builtin_expect (__gthread_active_latest_value < 0, 0)) 301 { 302 pthread_default_stacksize_np (0, &__s); 303 __gthread_active = __s ? 1 : 0; 304 __gthread_active_latest_value = __gthread_active; 305 } 306 307 return __gthread_active_latest_value != 0; 308} 309 310#else /* not hppa-hpux */ 311 312static inline int 313__gthread_active_p (void) 314{ 315 return 1; 316} 317 318#endif /* hppa-hpux */ 319 320#endif /* __GXX_WEAK__ */ 321 322#ifdef _LIBOBJC 323 324/* This is the config.h file in libobjc/ */ 325#include <config.h> 326 327#ifdef HAVE_SCHED_H 328# include <sched.h> 329#endif 330 331/* Key structure for maintaining thread specific storage */ 332static pthread_key_t _objc_thread_storage; 333static pthread_attr_t _objc_thread_attribs; 334 335/* Thread local storage for a single thread */ 336static void *thread_local_storage = NULL; 337 338/* Backend initialization functions */ 339 340/* Initialize the threads subsystem. */ 341static inline int 342__gthread_objc_init_thread_system (void) 343{ 344 if (__gthread_active_p ()) 345 { 346 /* Initialize the thread storage key. */ 347 if (__gthrw_(pthread_key_create) (&_objc_thread_storage, NULL) == 0) 348 { 349 /* The normal default detach state for threads is 350 * PTHREAD_CREATE_JOINABLE which causes threads to not die 351 * when you think they should. */ 352 if (__gthrw_(pthread_attr_init) (&_objc_thread_attribs) == 0 353 && __gthrw_(pthread_attr_setdetachstate) (&_objc_thread_attribs, 354 PTHREAD_CREATE_DETACHED) == 0) 355 return 0; 356 } 357 } 358 359 return -1; 360} 361 362/* Close the threads subsystem. */ 363static inline int 364__gthread_objc_close_thread_system (void) 365{ 366 if (__gthread_active_p () 367 && __gthrw_(pthread_key_delete) (_objc_thread_storage) == 0 368 && __gthrw_(pthread_attr_destroy) (&_objc_thread_attribs) == 0) 369 return 0; 370 371 return -1; 372} 373 374/* Backend thread functions */ 375 376/* Create a new thread of execution. */ 377static inline objc_thread_t 378__gthread_objc_thread_detach (void (*func)(void *), void *arg) 379{ 380 objc_thread_t thread_id; 381 pthread_t new_thread_handle; 382 383 if (!__gthread_active_p ()) 384 return NULL; 385 386 if (!(__gthrw_(pthread_create) (&new_thread_handle, &_objc_thread_attribs, 387 (void *) func, arg))) 388 thread_id = (objc_thread_t) new_thread_handle; 389 else 390 thread_id = NULL; 391 392 return thread_id; 393} 394 395/* Set the current thread's priority. */ 396static inline int 397__gthread_objc_thread_set_priority (int priority) 398{ 399 if (!__gthread_active_p ()) 400 return -1; 401 else 402 { 403#ifdef _POSIX_PRIORITY_SCHEDULING 404#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 405 pthread_t thread_id = __gthrw_(pthread_self) (); 406 int policy; 407 struct sched_param params; 408 int priority_min, priority_max; 409 410 if (__gthrw_(pthread_getschedparam) (thread_id, &policy, ¶ms) == 0) 411 { 412 if ((priority_max = __gthrw_(sched_get_priority_max) (policy)) == -1) 413 return -1; 414 415 if ((priority_min = __gthrw_(sched_get_priority_min) (policy)) == -1) 416 return -1; 417 418 if (priority > priority_max) 419 priority = priority_max; 420 else if (priority < priority_min) 421 priority = priority_min; 422 params.sched_priority = priority; 423 424 /* 425 * The solaris 7 and several other man pages incorrectly state that 426 * this should be a pointer to policy but pthread.h is universally 427 * at odds with this. 428 */ 429 if (__gthrw_(pthread_setschedparam) (thread_id, policy, ¶ms) == 0) 430 return 0; 431 } 432#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 433#endif /* _POSIX_PRIORITY_SCHEDULING */ 434 return -1; 435 } 436} 437 438/* Return the current thread's priority. */ 439static inline int 440__gthread_objc_thread_get_priority (void) 441{ 442#ifdef _POSIX_PRIORITY_SCHEDULING 443#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 444 if (__gthread_active_p ()) 445 { 446 int policy; 447 struct sched_param params; 448 449 if (__gthrw_(pthread_getschedparam) (__gthrw_(pthread_self) (), &policy, ¶ms) == 0) 450 return params.sched_priority; 451 else 452 return -1; 453 } 454 else 455#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 456#endif /* _POSIX_PRIORITY_SCHEDULING */ 457 return OBJC_THREAD_INTERACTIVE_PRIORITY; 458} 459 460/* Yield our process time to another thread. */ 461static inline void 462__gthread_objc_thread_yield (void) 463{ 464 if (__gthread_active_p ()) 465 __gthrw_(sched_yield) (); 466} 467 468/* Terminate the current thread. */ 469static inline int 470__gthread_objc_thread_exit (void) 471{ 472 if (__gthread_active_p ()) 473 /* exit the thread */ 474 __gthrw_(pthread_exit) (&__objc_thread_exit_status); 475 476 /* Failed if we reached here */ 477 return -1; 478} 479 480/* Returns an integer value which uniquely describes a thread. */ 481static inline objc_thread_t 482__gthread_objc_thread_id (void) 483{ 484 if (__gthread_active_p ()) 485 return (objc_thread_t) __gthrw_(pthread_self) (); 486 else 487 return (objc_thread_t) 1; 488} 489 490/* Sets the thread's local storage pointer. */ 491static inline int 492__gthread_objc_thread_set_data (void *value) 493{ 494 if (__gthread_active_p ()) 495 return __gthrw_(pthread_setspecific) (_objc_thread_storage, value); 496 else 497 { 498 thread_local_storage = value; 499 return 0; 500 } 501} 502 503/* Returns the thread's local storage pointer. */ 504static inline void * 505__gthread_objc_thread_get_data (void) 506{ 507 if (__gthread_active_p ()) 508 return __gthrw_(pthread_getspecific) (_objc_thread_storage); 509 else 510 return thread_local_storage; 511} 512 513/* Backend mutex functions */ 514 515/* Allocate a mutex. */ 516static inline int 517__gthread_objc_mutex_allocate (objc_mutex_t mutex) 518{ 519 if (__gthread_active_p ()) 520 { 521 mutex->backend = objc_malloc (sizeof (pthread_mutex_t)); 522 523 if (__gthrw_(pthread_mutex_init) ((pthread_mutex_t *) mutex->backend, NULL)) 524 { 525 objc_free (mutex->backend); 526 mutex->backend = NULL; 527 return -1; 528 } 529 } 530 531 return 0; 532} 533 534/* Deallocate a mutex. */ 535static inline int 536__gthread_objc_mutex_deallocate (objc_mutex_t mutex) 537{ 538 if (__gthread_active_p ()) 539 { 540 int count; 541 542 /* 543 * Posix Threads specifically require that the thread be unlocked 544 * for __gthrw_(pthread_mutex_destroy) to work. 545 */ 546 547 do 548 { 549 count = __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend); 550 if (count < 0) 551 return -1; 552 } 553 while (count); 554 555 if (__gthrw_(pthread_mutex_destroy) ((pthread_mutex_t *) mutex->backend)) 556 return -1; 557 558 objc_free (mutex->backend); 559 mutex->backend = NULL; 560 } 561 return 0; 562} 563 564/* Grab a lock on a mutex. */ 565static inline int 566__gthread_objc_mutex_lock (objc_mutex_t mutex) 567{ 568 if (__gthread_active_p () 569 && __gthrw_(pthread_mutex_lock) ((pthread_mutex_t *) mutex->backend) != 0) 570 { 571 return -1; 572 } 573 574 return 0; 575} 576 577/* Try to grab a lock on a mutex. */ 578static inline int 579__gthread_objc_mutex_trylock (objc_mutex_t mutex) 580{ 581 if (__gthread_active_p () 582 && __gthrw_(pthread_mutex_trylock) ((pthread_mutex_t *) mutex->backend) != 0) 583 { 584 return -1; 585 } 586 587 return 0; 588} 589 590/* Unlock the mutex */ 591static inline int 592__gthread_objc_mutex_unlock (objc_mutex_t mutex) 593{ 594 if (__gthread_active_p () 595 && __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend) != 0) 596 { 597 return -1; 598 } 599 600 return 0; 601} 602 603/* Backend condition mutex functions */ 604 605/* Allocate a condition. */ 606static inline int 607__gthread_objc_condition_allocate (objc_condition_t condition) 608{ 609 if (__gthread_active_p ()) 610 { 611 condition->backend = objc_malloc (sizeof (pthread_cond_t)); 612 613 if (__gthrw_(pthread_cond_init) ((pthread_cond_t *) condition->backend, NULL)) 614 { 615 objc_free (condition->backend); 616 condition->backend = NULL; 617 return -1; 618 } 619 } 620 621 return 0; 622} 623 624/* Deallocate a condition. */ 625static inline int 626__gthread_objc_condition_deallocate (objc_condition_t condition) 627{ 628 if (__gthread_active_p ()) 629 { 630 if (__gthrw_(pthread_cond_destroy) ((pthread_cond_t *) condition->backend)) 631 return -1; 632 633 objc_free (condition->backend); 634 condition->backend = NULL; 635 } 636 return 0; 637} 638 639/* Wait on the condition */ 640static inline int 641__gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex) 642{ 643 if (__gthread_active_p ()) 644 return __gthrw_(pthread_cond_wait) ((pthread_cond_t *) condition->backend, 645 (pthread_mutex_t *) mutex->backend); 646 else 647 return 0; 648} 649 650/* Wake up all threads waiting on this condition. */ 651static inline int 652__gthread_objc_condition_broadcast (objc_condition_t condition) 653{ 654 if (__gthread_active_p ()) 655 return __gthrw_(pthread_cond_broadcast) ((pthread_cond_t *) condition->backend); 656 else 657 return 0; 658} 659 660/* Wake up one thread waiting on this condition. */ 661static inline int 662__gthread_objc_condition_signal (objc_condition_t condition) 663{ 664 if (__gthread_active_p ()) 665 return __gthrw_(pthread_cond_signal) ((pthread_cond_t *) condition->backend); 666 else 667 return 0; 668} 669 670#else /* _LIBOBJC */ 671 672static inline int 673__gthread_create (__gthread_t *__threadid, void *(*__func) (void*), 674 void *__args) 675{ 676 return __gthrw_(pthread_create) (__threadid, NULL, __func, __args); 677} 678 679static inline int 680__gthread_join (__gthread_t __threadid, void **__value_ptr) 681{ 682 return __gthrw_(pthread_join) (__threadid, __value_ptr); 683} 684 685static inline int 686__gthread_detach (__gthread_t __threadid) 687{ 688 return __gthrw_(pthread_detach) (__threadid); 689} 690 691static inline int 692__gthread_equal (__gthread_t __t1, __gthread_t __t2) 693{ 694 return __gthrw_(pthread_equal) (__t1, __t2); 695} 696 697static inline __gthread_t 698__gthread_self (void) 699{ 700 return __gthrw_(pthread_self) (); 701} 702 703static inline int 704__gthread_yield (void) 705{ 706 return __gthrw_(sched_yield) (); 707} 708 709static inline int 710__gthread_once (__gthread_once_t *__once, void (*__func) (void)) 711{ 712 if (__gthread_active_p ()) 713 return __gthrw_(pthread_once) (__once, __func); 714 else 715 return -1; 716} 717 718static inline int 719__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *)) 720{ 721 return __gthrw_(pthread_key_create) (__key, __dtor); 722} 723 724static inline int 725__gthread_key_delete (__gthread_key_t __key) 726{ 727 return __gthrw_(pthread_key_delete) (__key); 728} 729 730static inline void * 731__gthread_getspecific (__gthread_key_t __key) 732{ 733 return __gthrw_(pthread_getspecific) (__key); 734} 735 736static inline int 737__gthread_setspecific (__gthread_key_t __key, const void *__ptr) 738{ 739 return __gthrw_(pthread_setspecific) (__key, __ptr); 740} 741 742static inline int 743__gthread_mutex_destroy (__gthread_mutex_t *__mutex) 744{ 745 if (__gthread_active_p ()) 746 return __gthrw_(pthread_mutex_destroy) (__mutex); 747 else 748 return 0; 749} 750 751static inline int 752__gthread_mutex_lock (__gthread_mutex_t *__mutex) 753{ 754 if (__gthread_active_p ()) 755 return __gthrw_(pthread_mutex_lock) (__mutex); 756 else 757 return 0; 758} 759 760static inline int 761__gthread_mutex_trylock (__gthread_mutex_t *__mutex) 762{ 763 if (__gthread_active_p ()) 764 return __gthrw_(pthread_mutex_trylock) (__mutex); 765 else 766 return 0; 767} 768 769#ifdef _POSIX_TIMEOUTS 770#if _POSIX_TIMEOUTS >= 0 771static inline int 772__gthread_mutex_timedlock (__gthread_mutex_t *__mutex, 773 const __gthread_time_t *__abs_timeout) 774{ 775 if (__gthread_active_p ()) 776 return __gthrw_(pthread_mutex_timedlock) (__mutex, __abs_timeout); 777 else 778 return 0; 779} 780#endif 781#endif 782 783static inline int 784__gthread_mutex_unlock (__gthread_mutex_t *__mutex) 785{ 786 if (__gthread_active_p ()) 787 return __gthrw_(pthread_mutex_unlock) (__mutex); 788 else 789 return 0; 790} 791 792#ifndef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP 793static inline int 794__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex) 795{ 796 if (__gthread_active_p ()) 797 { 798 pthread_mutexattr_t __attr; 799 int __r; 800 801 __r = __gthrw_(pthread_mutexattr_init) (&__attr); 802 if (!__r) 803 __r = __gthrw_(pthread_mutexattr_settype) (&__attr, 804 PTHREAD_MUTEX_RECURSIVE); 805 if (!__r) 806 __r = __gthrw_(pthread_mutex_init) (__mutex, &__attr); 807 if (!__r) 808 __r = __gthrw_(pthread_mutexattr_destroy) (&__attr); 809 return __r; 810 } 811 return 0; 812} 813#endif 814 815static inline int 816__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex) 817{ 818 return __gthread_mutex_lock (__mutex); 819} 820 821static inline int 822__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex) 823{ 824 return __gthread_mutex_trylock (__mutex); 825} 826 827#ifdef _POSIX_TIMEOUTS 828#if _POSIX_TIMEOUTS >= 0 829static inline int 830__gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *__mutex, 831 const __gthread_time_t *__abs_timeout) 832{ 833 return __gthread_mutex_timedlock (__mutex, __abs_timeout); 834} 835#endif 836#endif 837 838static inline int 839__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex) 840{ 841 return __gthread_mutex_unlock (__mutex); 842} 843 844static inline int 845__gthread_cond_broadcast (__gthread_cond_t *__cond) 846{ 847 return __gthrw_(pthread_cond_broadcast) (__cond); 848} 849 850static inline int 851__gthread_cond_signal (__gthread_cond_t *__cond) 852{ 853 return __gthrw_(pthread_cond_signal) (__cond); 854} 855 856static inline int 857__gthread_cond_wait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex) 858{ 859 return __gthrw_(pthread_cond_wait) (__cond, __mutex); 860} 861 862static inline int 863__gthread_cond_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex, 864 const __gthread_time_t *__abs_timeout) 865{ 866 return __gthrw_(pthread_cond_timedwait) (__cond, __mutex, __abs_timeout); 867} 868 869static inline int 870__gthread_cond_wait_recursive (__gthread_cond_t *__cond, 871 __gthread_recursive_mutex_t *__mutex) 872{ 873 return __gthread_cond_wait (__cond, __mutex); 874} 875 876static inline int 877__gthread_cond_timedwait_recursive (__gthread_cond_t *__cond, 878 __gthread_recursive_mutex_t *__mutex, 879 const __gthread_time_t *__abs_timeout) 880{ 881 return __gthread_cond_timedwait (__cond, __mutex, __abs_timeout); 882} 883 884static inline int 885__gthread_cond_destroy (__gthread_cond_t* __cond) 886{ 887 return __gthrw_(pthread_cond_destroy) (__cond); 888} 889 890#endif /* _LIBOBJC */ 891 892#endif /* ! _GLIBCXX_GCC_GTHR_POSIX_H */ 893