kernel32: Define SCS_64BIT_BINARY.
[wine/multimedia.git] / loader / kthread.c
blobe27eb2ee82972198479270dbb6386f52a51a61de
1 /*
2 * pthread emulation based on kernel threads
4 * We can't use pthreads directly, so why not let libcs
5 * that want pthreads use Wine's own threading instead...
7 * Copyright 1999 Ove Kåven
8 * Copyright 2003 Alexandre Julliard
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include "config.h"
26 #include "wine/port.h"
28 struct _pthread_cleanup_buffer;
30 #include <assert.h>
31 #include <errno.h>
32 #include <stdlib.h>
33 #include <signal.h>
34 #include <setjmp.h>
35 #ifdef HAVE_UNISTD_H
36 # include <unistd.h>
37 #endif
38 #include <string.h>
39 #include <sys/types.h>
40 #ifdef HAVE_SYS_SOCKET_H
41 # include <sys/socket.h>
42 #endif
43 #ifdef HAVE_SYS_MMAN_H
44 #include <sys/mman.h>
45 #endif
46 #ifdef HAVE_NETINET_IN_H
47 # include <netinet/in.h>
48 #endif
49 #ifdef HAVE_ARPA_NAMESER_H
50 # include <arpa/nameser.h>
51 #endif
52 #ifdef HAVE_RESOLV_H
53 # include <resolv.h>
54 #endif
55 #ifdef HAVE_VALGRIND_MEMCHECK_H
56 #include <valgrind/memcheck.h>
57 #endif
58 #ifdef HAVE_SYS_SYSCALL_H
59 # include <sys/syscall.h>
60 #endif
61 #ifdef HAVE_SYS_LWP_H
62 # include <sys/lwp.h>
63 #endif
64 #ifdef HAVE_UCONTEXT_H
65 # include <ucontext.h>
66 #endif
67 #ifdef HAVE_SCHED_H
68 #include <sched.h>
69 #endif
71 #include "wine/library.h"
72 #include "wine/pthread.h"
74 #define P_OUTPUT(stuff) write(2,stuff,strlen(stuff))
76 #define PSTR(str) __ASM_NAME(#str)
78 static struct wine_pthread_callbacks funcs;
80 /* thread descriptor */
82 #define FIRST_KEY 0
83 #define MAX_KEYS 16 /* libc6 doesn't use that many, but... */
84 #define MAX_TSD 16
86 struct pthread_descr_struct
88 char dummy[2048];
89 int thread_errno;
90 int thread_h_errno;
91 int cancel_state;
92 int cancel_type;
93 struct __res_state res_state;
94 const void *key_data[MAX_KEYS]; /* for normal pthread keys */
95 const void *tsd_data[MAX_TSD]; /* for libc internal tsd variables */
98 typedef struct pthread_descr_struct *pthread_descr;
100 static struct pthread_descr_struct initial_descr;
102 pthread_descr __pthread_thread_self(void)
104 struct pthread_descr_struct *descr;
105 if (!funcs.ptr_get_thread_data) return &initial_descr;
106 descr = funcs.ptr_get_thread_data();
107 if (!descr) return &initial_descr;
108 return descr;
111 static int (*libc_uselocale)(int set);
112 static int *libc_multiple_threads;
114 /***********************************************************************
115 * __errno_location/__error/__errno/___errno/__thr_errno
117 * Get the per-thread errno location.
119 int *__errno_location(void) /* Linux */
121 pthread_descr descr = __pthread_thread_self();
122 return &descr->thread_errno;
124 int *__error(void) { return __errno_location(); } /* FreeBSD */
125 int *__errno(void) { return __errno_location(); } /* NetBSD */
126 int *___errno(void) { return __errno_location(); } /* Solaris */
127 int *__thr_errno(void) { return __errno_location(); } /* UnixWare */
129 /***********************************************************************
130 * __h_errno_location
132 * Get the per-thread h_errno location.
134 int *__h_errno_location(void)
136 pthread_descr descr = __pthread_thread_self();
137 return &descr->thread_h_errno;
140 struct __res_state *__res_state(void)
142 pthread_descr descr = __pthread_thread_self();
143 return &descr->res_state;
146 static inline void writejump( const char *symbol, void *dest )
148 #if defined(__GLIBC__) && defined(__i386__)
149 unsigned char *addr = wine_dlsym( RTLD_NEXT, symbol, NULL, 0 );
151 if (!addr) return;
153 /* write a relative jump at the function address */
154 mprotect((void*)((unsigned int)addr & ~(getpagesize()-1)), 5, PROT_READ|PROT_EXEC|PROT_WRITE);
155 addr[0] = 0xe9;
156 *(int *)(addr+1) = (unsigned char *)dest - (addr + 5);
157 mprotect((void*)((unsigned int)addr & ~(getpagesize()-1)), 5, PROT_READ|PROT_EXEC);
159 # ifdef HAVE_VALGRIND_MEMCHECK_H
160 VALGRIND_DISCARD_TRANSLATIONS( addr, 5 );
161 # endif
162 #endif /* __GLIBC__ && __i386__ */
165 /* temporary stacks used on thread exit */
166 #define TEMP_STACK_SIZE 1024
167 #define NB_TEMP_STACKS 8
168 static char temp_stacks[NB_TEMP_STACKS][TEMP_STACK_SIZE];
169 static int next_temp_stack; /* next temp stack to use */
171 /***********************************************************************
172 * get_temp_stack
174 * Get a temporary stack address to run the thread exit code on.
176 inline static char *get_temp_stack(void)
178 unsigned int next = interlocked_xchg_add( &next_temp_stack, 1 );
179 return temp_stacks[next % NB_TEMP_STACKS] + TEMP_STACK_SIZE;
183 /***********************************************************************
184 * cleanup_thread
186 * Cleanup the remains of a thread. Runs on a temporary stack.
188 static void cleanup_thread( void *ptr )
190 /* copy the info structure since it is on the stack we will free */
191 struct wine_pthread_thread_info info = *(struct wine_pthread_thread_info *)ptr;
192 wine_ldt_free_fs( info.teb_sel );
193 munmap( info.stack_base, info.stack_size );
194 munmap( info.teb_base, info.teb_size );
195 #ifdef HAVE__LWP_CREATE
196 _lwp_exit();
197 #endif
198 _exit( info.exit_status );
202 /***********************************************************************
203 * init_process
205 * Initialization for a newly created process.
207 static void init_process( const struct wine_pthread_callbacks *callbacks, size_t size )
209 memcpy( &funcs, callbacks, min( size, sizeof(funcs) ));
210 funcs.ptr_set_thread_data( &initial_descr );
214 /***********************************************************************
215 * init_thread
217 * Initialization for a newly created thread.
219 static void init_thread( struct wine_pthread_thread_info *info )
221 struct pthread_descr_struct *descr;
223 if (funcs.ptr_set_thread_data)
225 descr = calloc( 1, sizeof(*descr) );
226 funcs.ptr_set_thread_data( descr );
227 if (libc_multiple_threads) *libc_multiple_threads = 1;
229 else /* first thread */
231 descr = &initial_descr;
232 writejump( "__errno_location", __errno_location );
233 writejump( "__h_errno_location", __h_errno_location );
234 writejump( "__res_state", __res_state );
236 descr->cancel_state = PTHREAD_CANCEL_ENABLE;
237 descr->cancel_type = PTHREAD_CANCEL_ASYNCHRONOUS;
238 if (libc_uselocale) libc_uselocale( -1 /*LC_GLOBAL_LOCALE*/ );
242 /***********************************************************************
243 * create_thread
245 static int create_thread( struct wine_pthread_thread_info *info )
247 if (!info->stack_base)
249 info->stack_base = wine_anon_mmap( NULL, info->stack_size,
250 PROT_READ | PROT_WRITE | PROT_EXEC, 0 );
251 if (info->stack_base == (void *)-1) return -1;
253 #ifdef HAVE_CLONE
254 if (clone( (int (*)(void *))info->entry, (char *)info->stack_base + info->stack_size,
255 CLONE_VM | CLONE_FS | CLONE_FILES | SIGCHLD, info ) < 0)
256 return -1;
257 return 0;
258 #elif defined(HAVE_RFORK)
260 void **sp = (void **)((char *)info->stack_base + info->stack_size);
261 *--sp = info;
262 *--sp = 0;
263 *--sp = info->entry;
264 __asm__ __volatile__(
265 "pushl %2;\n\t" /* flags */
266 "pushl $0;\n\t" /* 0 ? */
267 "movl %1,%%eax;\n\t" /* SYS_rfork */
268 ".byte 0x9a; .long 0; .word 7;\n\t" /* lcall 7:0... FreeBSD syscall */
269 "cmpl $0, %%edx;\n\t"
270 "je 1f;\n\t"
271 "movl %0,%%esp;\n\t" /* child -> new thread */
272 "ret;\n"
273 "1:\n\t" /* parent -> caller thread */
274 "addl $8,%%esp" :
275 : "r" (sp), "r" (SYS_rfork), "r" (RFPROC | RFMEM | RFTHREAD)
276 : "eax", "edx");
277 return 0;
279 #elif defined(HAVE__LWP_CREATE)
281 ucontext_t context;
282 _lwp_makecontext( &context, (void(*)(void *))info->entry, info,
283 NULL, info->stack_base, info->stack_size );
284 if ( _lwp_create( &context, 0, NULL ) )
285 return -1;
286 return 0;
288 #endif
289 return -1;
293 /***********************************************************************
294 * init_current_teb
296 * Set the current TEB for a new thread.
298 static void init_current_teb( struct wine_pthread_thread_info *info )
300 #ifdef __i386__
301 /* On the i386, the current thread is in the %fs register */
302 LDT_ENTRY fs_entry;
304 wine_ldt_set_base( &fs_entry, info->teb_base );
305 wine_ldt_set_limit( &fs_entry, info->teb_size - 1 );
306 wine_ldt_set_flags( &fs_entry, WINE_LDT_FLAGS_DATA|WINE_LDT_FLAGS_32BIT );
307 wine_ldt_init_fs( info->teb_sel, &fs_entry );
308 #elif defined(HAVE__LWP_CREATE)
309 /* On non-i386 Solaris, we use the LWP private pointer */
310 _lwp_setprivate( info->teb_base );
311 #elif defined(__powerpc__)
312 /* On PowerPC, the current TEB is in the gpr13 register */
313 # ifdef __APPLE__
314 __asm__ __volatile__("mr r13, %0" : : "r" (info->teb_base));
315 # else
316 __asm__ __volatile__("mr 2, %0" : : "r" (info->teb_base));
317 # endif
318 #elif defined(__ALPHA__)
319 /* FIXME: On Alpha, the current TEB is not accessible to user-space */
320 /* __asm__ __volatile__();*/
321 #else
322 # error You must implement init_current_teb for your platform
323 #endif
325 /* set pid and tid */
326 info->pid = getpid();
327 #ifdef HAVE__LWP_SELF
328 info->tid = _lwp_self();
329 #else
330 info->tid = -1;
331 #endif
335 /***********************************************************************
336 * get_current_teb
338 static void *get_current_teb(void)
340 void *ret;
342 #ifdef __i386__
343 __asm__( ".byte 0x64\n\tmovl 0x18,%0" : "=r" (ret) );
344 #elif defined(HAVE__LWP_CREATE)
345 ret = _lwp_getprivate();
346 #elif defined(__powerpc__)
347 # ifdef __APPLE__
348 __asm__( "mr %0,r13" : "=r" (ret) );
349 # else
350 __asm__( "mr %0,2" : "=r" (ret) );
351 # endif
352 #elif defined(__ALPHA__)
353 /* 0x00ab is the PAL opcode for rdteb */
354 __asm__( "lda $30,8($30)\n\t"
355 "stq $0,0($30)\n\t"
356 "call_pal 0x00ab\n\t"
357 "mov $0,%0\n\t"
358 "ldq $0,0($30)\n\t"
359 "lda $30,-8($30)" : "=r" (ret) );
360 #else
361 # error get_current_teb not defined for this architecture
362 #endif /* __i386__ */
364 return ret;
368 /***********************************************************************
369 * exit_thread
371 static void DECLSPEC_NORETURN exit_thread( struct wine_pthread_thread_info *info )
373 wine_switch_to_stack( cleanup_thread, info, get_temp_stack() );
377 /***********************************************************************
378 * abort_thread
380 static void DECLSPEC_NORETURN abort_thread( long status )
382 #ifdef HAVE__LWP_CREATE
383 _lwp_exit();
384 #endif
385 _exit( status );
389 /***********************************************************************
390 * pthread_functions
392 const struct wine_pthread_functions pthread_functions =
394 init_process,
395 init_thread,
396 create_thread,
397 init_current_teb,
398 get_current_teb,
399 exit_thread,
400 abort_thread
404 /* Currently this probably works only for glibc2,
405 * which checks for the presence of double-underscore-prepended
406 * pthread primitives, and use them if available.
407 * If they are not available, the libc defaults to
408 * non-threadsafe operation (not good). */
410 #if defined(HAVE_PTHREAD_H) && (defined(__GLIBC__) || defined(__FreeBSD__))
412 /* adapt as necessary (a construct like this is used in glibc sources) */
413 #define strong_alias(orig, alias) \
414 asm(".globl " PSTR(alias) "\n" \
415 "\t.set " PSTR(alias) "," PSTR(orig))
417 struct fork_block;
419 /* pthread functions redirection */
421 struct pthread_functions
423 pid_t (*ptr_pthread_fork) (struct fork_block *);
424 int (*ptr_pthread_attr_destroy) (pthread_attr_t *);
425 int (*ptr___pthread_attr_init_2_0) (pthread_attr_t *);
426 int (*ptr___pthread_attr_init_2_1) (pthread_attr_t *);
427 int (*ptr_pthread_attr_getdetachstate) (const pthread_attr_t *, int *);
428 int (*ptr_pthread_attr_setdetachstate) (pthread_attr_t *, int);
429 int (*ptr_pthread_attr_getinheritsched) (const pthread_attr_t *, int *);
430 int (*ptr_pthread_attr_setinheritsched) (pthread_attr_t *, int);
431 int (*ptr_pthread_attr_getschedparam) (const pthread_attr_t *, struct sched_param *);
432 int (*ptr_pthread_attr_setschedparam) (pthread_attr_t *, const struct sched_param *);
433 int (*ptr_pthread_attr_getschedpolicy) (const pthread_attr_t *, int *);
434 int (*ptr_pthread_attr_setschedpolicy) (pthread_attr_t *, int);
435 int (*ptr_pthread_attr_getscope) (const pthread_attr_t *, int *);
436 int (*ptr_pthread_attr_setscope) (pthread_attr_t *, int);
437 int (*ptr_pthread_condattr_destroy) (pthread_condattr_t *);
438 int (*ptr_pthread_condattr_init) (pthread_condattr_t *);
439 int (*ptr___pthread_cond_broadcast) (pthread_cond_t *);
440 int (*ptr___pthread_cond_destroy) (pthread_cond_t *);
441 int (*ptr___pthread_cond_init) (pthread_cond_t *, const pthread_condattr_t *);
442 int (*ptr___pthread_cond_signal) (pthread_cond_t *);
443 int (*ptr___pthread_cond_wait) (pthread_cond_t *, pthread_mutex_t *);
444 int (*ptr_pthread_equal) (pthread_t, pthread_t);
445 void (*ptr___pthread_exit) (void *);
446 int (*ptr_pthread_getschedparam) (pthread_t, int *, struct sched_param *);
447 int (*ptr_pthread_setschedparam) (pthread_t, int, const struct sched_param *);
448 int (*ptr_pthread_mutex_destroy) (pthread_mutex_t *);
449 int (*ptr_pthread_mutex_init) (pthread_mutex_t *, const pthread_mutexattr_t *);
450 int (*ptr_pthread_mutex_lock) (pthread_mutex_t *);
451 int (*ptr_pthread_mutex_trylock) (pthread_mutex_t *);
452 int (*ptr_pthread_mutex_unlock) (pthread_mutex_t *);
453 pthread_t (*ptr_pthread_self) (void);
454 int (*ptr_pthread_setcancelstate) (int, int *);
455 int (*ptr_pthread_setcanceltype) (int, int *);
456 void (*ptr_pthread_do_exit) (void *retval, char *currentframe);
457 void (*ptr_pthread_cleanup_upto) (jmp_buf target, char *targetframe);
458 pthread_descr (*ptr_pthread_thread_self) (void);
459 int (*ptr_pthread_internal_tsd_set) (int key, const void *pointer);
460 void * (*ptr_pthread_internal_tsd_get) (int key);
461 void ** __attribute__ ((__const__)) (*ptr_pthread_internal_tsd_address) (int key);
462 int (*ptr_pthread_sigaction) (int sig, const struct sigaction * act, struct sigaction *oact);
463 int (*ptr_pthread_sigwait) (const sigset_t *set, int *sig);
464 int (*ptr_pthread_raise) (int sig);
465 int (*ptr___pthread_cond_timedwait) (pthread_cond_t *, pthread_mutex_t *, const struct timespec *);
466 void (*ptr__pthread_cleanup_push) (struct _pthread_cleanup_buffer * buffer, void (*routine)(void *), void * arg);
467 void (*ptr__pthread_cleanup_pop) (struct _pthread_cleanup_buffer * buffer, int execute);
470 static pid_t (*libc_fork)(void);
471 static int (*libc_sigaction)(int signum, const struct sigaction *act, struct sigaction *oldact);
472 static int *(*libc_pthread_init)( const struct pthread_functions *funcs );
474 static struct pthread_functions libc_pthread_functions;
476 strong_alias(__pthread_thread_self, pthread_thread_self);
478 /* redefine this to prevent libpthread from overriding our function pointers */
479 int *__libc_pthread_init( const struct pthread_functions *funcs )
481 return libc_multiple_threads;
484 typedef struct _wine_cleanup {
485 void (*routine)(void *);
486 void *arg;
487 } *wine_cleanup;
489 int pthread_create(pthread_t* thread, const pthread_attr_t* attr, void*
490 (*start_routine)(void *), void* arg)
492 assert( funcs.ptr_pthread_create );
493 return funcs.ptr_pthread_create( thread, attr, start_routine, arg );
496 int pthread_cancel(pthread_t thread)
498 assert( funcs.ptr_pthread_cancel );
499 return funcs.ptr_pthread_cancel( thread );
502 int pthread_join(pthread_t thread, void **value_ptr)
504 assert( funcs.ptr_pthread_join );
505 return funcs.ptr_pthread_join( thread, value_ptr );
508 int pthread_detach(pthread_t thread)
510 assert( funcs.ptr_pthread_detach );
511 return funcs.ptr_pthread_detach( thread );
514 /* FIXME: we have no equivalents in win32 for the policys */
515 /* so just keep this as a stub */
516 int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
518 P_OUTPUT("FIXME:pthread_attr_setschedpolicy\n");
519 return 0;
522 /* FIXME: no win32 equivalent for scope */
523 int pthread_attr_setscope(pthread_attr_t *attr, int scope)
525 P_OUTPUT("FIXME:pthread_attr_setscope\n");
526 return 0; /* return success */
529 /* FIXME: no win32 equivalent for schedule param */
530 int pthread_attr_setschedparam(pthread_attr_t *attr,
531 const struct sched_param *param)
533 P_OUTPUT("FIXME:pthread_attr_setschedparam\n");
534 return 0; /* return success */
537 /* FIXME */
538 int pthread_attr_setstack(pthread_attr_t *attr, void *addr, size_t size)
540 return 0; /* return success */
543 int __pthread_once(pthread_once_t *once_control, void (*init_routine)(void))
545 static pthread_once_t the_once = PTHREAD_ONCE_INIT;
546 int once_now;
548 memcpy(&once_now,&the_once,sizeof(once_now));
549 if (interlocked_cmpxchg((int*)once_control, once_now+1, once_now) == once_now)
550 (*init_routine)();
551 return 0;
553 strong_alias(__pthread_once, pthread_once);
555 void __pthread_kill_other_threads_np(void)
557 /* we don't need to do anything here */
559 strong_alias(__pthread_kill_other_threads_np, pthread_kill_other_threads_np);
561 /***** atfork *****/
563 #define MAX_ATFORK 8 /* libc doesn't need that many anyway */
565 static pthread_mutex_t atfork_mutex = PTHREAD_MUTEX_INITIALIZER;
567 typedef void (*atfork_handler)();
568 static atfork_handler atfork_prepare[MAX_ATFORK];
569 static atfork_handler atfork_parent[MAX_ATFORK];
570 static atfork_handler atfork_child[MAX_ATFORK];
571 static int atfork_count;
573 int __pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void))
575 pthread_mutex_lock( &atfork_mutex );
576 assert( atfork_count < MAX_ATFORK );
577 atfork_prepare[atfork_count] = prepare;
578 atfork_parent[atfork_count] = parent;
579 atfork_child[atfork_count] = child;
580 atfork_count++;
581 pthread_mutex_unlock( &atfork_mutex );
582 return 0;
584 strong_alias(__pthread_atfork, pthread_atfork);
586 pid_t __fork(void)
588 pid_t pid;
589 int i;
591 if (!libc_fork)
593 libc_fork = wine_dlsym( RTLD_NEXT, "fork", NULL, 0 );
594 assert( libc_fork );
596 pthread_mutex_lock( &atfork_mutex );
597 /* prepare handlers are called in reverse insertion order */
598 for (i = atfork_count - 1; i >= 0; i--) if (atfork_prepare[i]) atfork_prepare[i]();
599 if (!(pid = libc_fork()))
601 pthread_mutex_init( &atfork_mutex, NULL );
602 for (i = 0; i < atfork_count; i++) if (atfork_child[i]) atfork_child[i]();
604 else
606 for (i = 0; i < atfork_count; i++) if (atfork_parent[i]) atfork_parent[i]();
607 pthread_mutex_unlock( &atfork_mutex );
609 return pid;
611 strong_alias(__fork, fork);
613 /***** MUTEXES *****/
615 int __pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr)
617 if (!funcs.ptr_pthread_mutex_init) return 0;
618 return funcs.ptr_pthread_mutex_init( mutex, mutexattr );
620 strong_alias(__pthread_mutex_init, pthread_mutex_init);
622 int __pthread_mutex_lock(pthread_mutex_t *mutex)
624 if (!funcs.ptr_pthread_mutex_lock) return 0;
625 return funcs.ptr_pthread_mutex_lock( mutex );
627 strong_alias(__pthread_mutex_lock, pthread_mutex_lock);
629 int __pthread_mutex_trylock(pthread_mutex_t *mutex)
631 if (!funcs.ptr_pthread_mutex_trylock) return 0;
632 return funcs.ptr_pthread_mutex_trylock( mutex );
634 strong_alias(__pthread_mutex_trylock, pthread_mutex_trylock);
636 int __pthread_mutex_unlock(pthread_mutex_t *mutex)
638 if (!funcs.ptr_pthread_mutex_unlock) return 0;
639 return funcs.ptr_pthread_mutex_unlock( mutex );
641 strong_alias(__pthread_mutex_unlock, pthread_mutex_unlock);
643 int __pthread_mutex_destroy(pthread_mutex_t *mutex)
645 if (!funcs.ptr_pthread_mutex_destroy) return 0;
646 return funcs.ptr_pthread_mutex_destroy( mutex );
648 strong_alias(__pthread_mutex_destroy, pthread_mutex_destroy);
651 /***** MUTEX ATTRIBUTES *****/
652 /* just dummies, since critical sections are always recursive */
654 int __pthread_mutexattr_init(pthread_mutexattr_t *attr)
656 return 0;
658 strong_alias(__pthread_mutexattr_init, pthread_mutexattr_init);
660 int __pthread_mutexattr_destroy(pthread_mutexattr_t *attr)
662 return 0;
664 strong_alias(__pthread_mutexattr_destroy, pthread_mutexattr_destroy);
666 int __pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind)
668 return 0;
670 strong_alias(__pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np);
672 int __pthread_mutexattr_getkind_np(pthread_mutexattr_t *attr, int *kind)
674 *kind = PTHREAD_MUTEX_RECURSIVE;
675 return 0;
677 strong_alias(__pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np);
679 int __pthread_mutexattr_settype(pthread_mutexattr_t *attr, int kind)
681 return 0;
683 strong_alias(__pthread_mutexattr_settype, pthread_mutexattr_settype);
685 int __pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *kind)
687 *kind = PTHREAD_MUTEX_RECURSIVE;
688 return 0;
690 strong_alias(__pthread_mutexattr_gettype, pthread_mutexattr_gettype);
693 /***** THREAD-SPECIFIC VARIABLES (KEYS) *****/
695 int __pthread_key_create(pthread_key_t *key, void (*destr_function)(void *))
697 static int keycnt = FIRST_KEY;
698 *key = interlocked_xchg_add(&keycnt, 1);
699 return 0;
701 strong_alias(__pthread_key_create, pthread_key_create);
703 int __pthread_key_delete(pthread_key_t key)
705 return 0;
707 strong_alias(__pthread_key_delete, pthread_key_delete);
709 int __pthread_setspecific(pthread_key_t key, const void *pointer)
711 pthread_descr descr = __pthread_thread_self();
712 descr->key_data[key] = pointer;
713 return 0;
715 strong_alias(__pthread_setspecific, pthread_setspecific);
717 void *__pthread_getspecific(pthread_key_t key)
719 pthread_descr descr = __pthread_thread_self();
720 return (void *)descr->key_data[key];
722 strong_alias(__pthread_getspecific, pthread_getspecific);
724 static int pthread_internal_tsd_set( int key, const void *pointer )
726 pthread_descr descr = __pthread_thread_self();
727 descr->tsd_data[key] = pointer;
728 return 0;
730 int (*__libc_internal_tsd_set)(int, const void *) = pthread_internal_tsd_set;
732 static void *pthread_internal_tsd_get( int key )
734 pthread_descr descr = __pthread_thread_self();
735 return (void *)descr->tsd_data[key];
737 void* (*__libc_internal_tsd_get)(int) = pthread_internal_tsd_get;
739 static void ** __attribute__((const)) pthread_internal_tsd_address( int key )
741 pthread_descr descr = __pthread_thread_self();
742 return (void **)&descr->tsd_data[key];
744 void** (*__libc_internal_tsd_address)(int) = pthread_internal_tsd_address;
746 /***** "EXCEPTION" FRAMES *****/
747 /* not implemented right now */
749 void _pthread_cleanup_push(struct _pthread_cleanup_buffer *buffer, void (*routine)(void *), void *arg)
751 ((wine_cleanup)buffer)->routine = routine;
752 ((wine_cleanup)buffer)->arg = arg;
755 void _pthread_cleanup_pop(struct _pthread_cleanup_buffer *buffer, int execute)
757 if (execute) (*(((wine_cleanup)buffer)->routine))(((wine_cleanup)buffer)->arg);
760 void _pthread_cleanup_push_defer(struct _pthread_cleanup_buffer *buffer, void (*routine)(void *), void *arg)
762 _pthread_cleanup_push(buffer, routine, arg);
765 void _pthread_cleanup_pop_restore(struct _pthread_cleanup_buffer *buffer, int execute)
767 _pthread_cleanup_pop(buffer, execute);
770 void __pthread_cleanup_upto(jmp_buf target, char *frame)
772 /* FIXME */
775 /***** CONDITIONS *****/
777 int __pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *cond_attr)
779 if (!funcs.ptr_pthread_cond_init) return 0;
780 return funcs.ptr_pthread_cond_init(cond, cond_attr);
782 strong_alias(__pthread_cond_init, pthread_cond_init);
784 int __pthread_cond_destroy(pthread_cond_t *cond)
786 if (!funcs.ptr_pthread_cond_destroy) return 0;
787 return funcs.ptr_pthread_cond_destroy(cond);
789 strong_alias(__pthread_cond_destroy, pthread_cond_destroy);
791 int __pthread_cond_signal(pthread_cond_t *cond)
793 if (!funcs.ptr_pthread_cond_signal) return 0;
794 return funcs.ptr_pthread_cond_signal(cond);
796 strong_alias(__pthread_cond_signal, pthread_cond_signal);
798 int __pthread_cond_broadcast(pthread_cond_t *cond)
800 if (!funcs.ptr_pthread_cond_broadcast) return 0;
801 return funcs.ptr_pthread_cond_broadcast(cond);
803 strong_alias(__pthread_cond_broadcast, pthread_cond_broadcast);
805 int __pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
807 if (!funcs.ptr_pthread_cond_wait) return 0;
808 return funcs.ptr_pthread_cond_wait(cond, mutex);
810 strong_alias(__pthread_cond_wait, pthread_cond_wait);
812 int __pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, const struct timespec *abstime)
814 if (!funcs.ptr_pthread_cond_timedwait) return 0;
815 return funcs.ptr_pthread_cond_timedwait(cond, mutex, abstime);
817 strong_alias(__pthread_cond_timedwait, pthread_cond_timedwait);
819 /**** CONDITION ATTRIBUTES *****/
820 /* not implemented right now */
822 int pthread_condattr_init(pthread_condattr_t *attr)
824 return 0;
827 int pthread_condattr_destroy(pthread_condattr_t *attr)
829 return 0;
832 /***** READ-WRITE LOCKS *****/
834 int __pthread_rwlock_init(pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *rwlock_attr)
836 assert( funcs.ptr_pthread_rwlock_init );
837 return funcs.ptr_pthread_rwlock_init( rwlock, rwlock_attr );
839 strong_alias(__pthread_rwlock_init, pthread_rwlock_init);
841 int __pthread_rwlock_destroy(pthread_rwlock_t *rwlock)
843 assert( funcs.ptr_pthread_rwlock_destroy );
844 return funcs.ptr_pthread_rwlock_destroy( rwlock );
846 strong_alias(__pthread_rwlock_destroy, pthread_rwlock_destroy);
848 int __pthread_rwlock_rdlock(pthread_rwlock_t *rwlock)
850 if (!funcs.ptr_pthread_rwlock_rdlock) return 0;
851 return funcs.ptr_pthread_rwlock_rdlock( rwlock );
853 strong_alias(__pthread_rwlock_rdlock, pthread_rwlock_rdlock);
855 int __pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock)
857 assert( funcs.ptr_pthread_rwlock_tryrdlock );
858 return funcs.ptr_pthread_rwlock_tryrdlock( rwlock );
860 strong_alias(__pthread_rwlock_tryrdlock, pthread_rwlock_tryrdlock);
862 int __pthread_rwlock_wrlock(pthread_rwlock_t *rwlock)
864 assert( funcs.ptr_pthread_rwlock_wrlock );
865 return funcs.ptr_pthread_rwlock_wrlock( rwlock );
867 strong_alias(__pthread_rwlock_wrlock, pthread_rwlock_wrlock);
869 int __pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock)
871 assert( funcs.ptr_pthread_rwlock_trywrlock );
872 return funcs.ptr_pthread_rwlock_trywrlock( rwlock );
874 strong_alias(__pthread_rwlock_trywrlock, pthread_rwlock_trywrlock);
876 int __pthread_rwlock_unlock(pthread_rwlock_t *rwlock)
878 if (!funcs.ptr_pthread_rwlock_unlock) return 0;
879 return funcs.ptr_pthread_rwlock_unlock( rwlock );
881 strong_alias(__pthread_rwlock_unlock, pthread_rwlock_unlock);
883 /**** READ-WRITE LOCK ATTRIBUTES *****/
884 /* not implemented right now */
886 int pthread_rwlockattr_init(pthread_rwlockattr_t *attr)
888 return 0;
891 int __pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr)
893 return 0;
895 strong_alias(__pthread_rwlockattr_destroy, pthread_rwlockattr_destroy);
897 int pthread_rwlockattr_getkind_np(const pthread_rwlockattr_t *attr, int *pref)
899 *pref = 0;
900 return 0;
903 int pthread_rwlockattr_setkind_np(pthread_rwlockattr_t *attr, int pref)
905 return 0;
908 /***** MISC *****/
910 pthread_t pthread_self(void)
912 assert( funcs.ptr_pthread_self );
913 return funcs.ptr_pthread_self();
916 int pthread_equal(pthread_t thread1, pthread_t thread2)
918 assert( funcs.ptr_pthread_equal );
919 return funcs.ptr_pthread_equal( thread1, thread2 );
922 void __pthread_do_exit(void *retval, char *currentframe)
924 assert( funcs.ptr_pthread_exit );
925 return funcs.ptr_pthread_exit( retval, currentframe );
928 void __pthread_exit(void *retval)
930 __pthread_do_exit( retval, NULL );
932 strong_alias(__pthread_exit, pthread_exit);
934 int pthread_setcancelstate(int state, int *oldstate)
936 pthread_descr descr = __pthread_thread_self();
937 if (oldstate) *oldstate = descr->cancel_state;
938 descr->cancel_state = state;
939 return 0;
942 int pthread_setcanceltype(int type, int *oldtype)
944 pthread_descr descr = __pthread_thread_self();
945 if (oldtype) *oldtype = descr->cancel_type;
946 descr->cancel_type = type;
947 return 0;
950 /***** ANTI-OVERRIDES *****/
951 /* pthreads tries to override these, point them back to libc */
953 int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact)
955 if (!libc_sigaction)
957 libc_sigaction = wine_dlsym( RTLD_NEXT, "sigaction", NULL, 0 );
958 assert( libc_sigaction );
960 return libc_sigaction(signum, act, oldact);
963 void __pthread_initialize(void)
965 static int done;
967 if (!done)
969 done = 1;
970 libc_fork = wine_dlsym( RTLD_NEXT, "fork", NULL, 0 );
971 libc_sigaction = wine_dlsym( RTLD_NEXT, "sigaction", NULL, 0 );
972 libc_uselocale = wine_dlsym( RTLD_DEFAULT, "uselocale", NULL, 0 );
973 libc_pthread_init = wine_dlsym( RTLD_NEXT, "__libc_pthread_init", NULL, 0 );
974 if (libc_pthread_init) libc_multiple_threads = libc_pthread_init( &libc_pthread_functions );
978 #ifdef __GNUC__
979 static void init(void) __attribute__((constructor));
980 static void init(void)
982 __pthread_initialize();
984 #endif
986 static struct pthread_functions libc_pthread_functions =
988 NULL, /* ptr_pthread_fork */
989 NULL, /* FIXME */ /* ptr_pthread_attr_destroy */
990 NULL, /* FIXME */ /* ptr___pthread_attr_init_2_0 */
991 NULL, /* FIXME */ /* ptr___pthread_attr_init_2_1 */
992 NULL, /* FIXME */ /* ptr_pthread_attr_getdetachstate */
993 NULL, /* FIXME */ /* ptr_pthread_attr_setdetachstate */
994 NULL, /* FIXME */ /* ptr_pthread_attr_getinheritsched */
995 NULL, /* FIXME */ /* ptr_pthread_attr_setinheritsched */
996 NULL, /* FIXME */ /* ptr_pthread_attr_getschedparam */
997 pthread_attr_setschedparam, /* ptr_pthread_attr_setschedparam */
998 NULL, /* FIXME */ /* ptr_pthread_attr_getschedpolicy */
999 NULL, /* FIXME */ /* ptr_pthread_attr_setschedpolicy */
1000 NULL, /* FIXME */ /* ptr_pthread_attr_getscope */
1001 NULL, /* FIXME */ /* ptr_pthread_attr_setscope */
1002 pthread_condattr_destroy, /* ptr_pthread_condattr_destroy */
1003 pthread_condattr_init, /* ptr_pthread_condattr_init */
1004 __pthread_cond_broadcast, /* ptr___pthread_cond_broadcast */
1005 __pthread_cond_destroy, /* ptr___pthread_cond_destroy */
1006 __pthread_cond_init, /* ptr___pthread_cond_init */
1007 __pthread_cond_signal, /* ptr___pthread_cond_signal */
1008 __pthread_cond_wait, /* ptr___pthread_cond_wait */
1009 pthread_equal, /* ptr_pthread_equal */
1010 __pthread_exit, /* ptr___pthread_exit */
1011 NULL, /* FIXME */ /* ptr_pthread_getschedparam */
1012 NULL, /* FIXME */ /* ptr_pthread_setschedparam */
1013 __pthread_mutex_destroy, /* ptr_pthread_mutex_destroy */
1014 __pthread_mutex_init, /* ptr_pthread_mutex_init */
1015 __pthread_mutex_lock, /* ptr_pthread_mutex_lock */
1016 __pthread_mutex_trylock, /* ptr_pthread_mutex_trylock */
1017 __pthread_mutex_unlock, /* ptr_pthread_mutex_unlock */
1018 pthread_self, /* ptr_pthread_self */
1019 pthread_setcancelstate, /* ptr_pthread_setcancelstate */
1020 pthread_setcanceltype, /* ptr_pthread_setcanceltype */
1021 __pthread_do_exit, /* ptr_pthread_do_exit */
1022 __pthread_cleanup_upto, /* ptr_pthread_cleanup_upto */
1023 __pthread_thread_self, /* ptr_pthread_thread_self */
1024 pthread_internal_tsd_set, /* ptr_pthread_internal_tsd_set */
1025 pthread_internal_tsd_get, /* ptr_pthread_internal_tsd_get */
1026 pthread_internal_tsd_address, /* ptr_pthread_internal_tsd_address */
1027 NULL, /* ptr_pthread_sigaction */
1028 NULL, /* ptr_pthread_sigwait */
1029 NULL, /* ptr_pthread_raise */
1030 __pthread_cond_timedwait, /* ptr___pthread_cond_timedwait */
1031 _pthread_cleanup_push, /* ptr__pthread_cleanup_push */
1032 _pthread_cleanup_pop /* ptr__pthread_cleanup_pop */
1035 #endif /* HAVE_PTHREAD_H && (__GLIBC__ || __FREEBSD__) */