830 lines
26 KiB
C
830 lines
26 KiB
C
/*
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* pthread emulation for re-entrant libcs
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*
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* We can't use pthreads directly, so why not let libcs
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* that want pthreads use Wine's own threading instead...
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*
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* Copyright 1999 Ove Kåven
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* Copyright 2003 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#ifndef HAVE_NPTL
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struct _pthread_cleanup_buffer;
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#include <assert.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <setjmp.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include <string.h>
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#include <sys/types.h>
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#if HAVE_SYS_SOCKET_H
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# include <sys/socket.h>
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#endif
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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# include <netinet/in.h>
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#endif
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#ifdef HAVE_RESOLV_H
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# include <resolv.h>
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#endif
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#ifdef HAVE_VALGRIND_MEMCHECK_H
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#include <valgrind/memcheck.h>
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#endif
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#include "wine/pthread.h"
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#define P_OUTPUT(stuff) write(2,stuff,strlen(stuff))
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#define PSTR(str) __ASM_NAME(#str)
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static struct wine_pthread_functions funcs;
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/* thread descriptor */
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#define FIRST_KEY 0
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#define MAX_KEYS 16 /* libc6 doesn't use that many, but... */
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#define MAX_TSD 16
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struct pthread_descr_struct
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{
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char dummy[2048];
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int thread_errno;
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int thread_h_errno;
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int cancel_state;
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int cancel_type;
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struct __res_state res_state;
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const void *key_data[MAX_KEYS]; /* for normal pthread keys */
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const void *tsd_data[MAX_TSD]; /* for libc internal tsd variables */
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};
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typedef struct pthread_descr_struct *pthread_descr;
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static struct pthread_descr_struct initial_descr;
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pthread_descr __pthread_thread_self(void)
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{
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struct pthread_descr_struct *descr;
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if (!funcs.ptr_get_thread_data) return &initial_descr;
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descr = funcs.ptr_get_thread_data();
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if (!descr) return &initial_descr;
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return descr;
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}
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static int (*libc_uselocale)(int set);
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static int *libc_multiple_threads;
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/***********************************************************************
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* __errno_location/__error/__errno/___errno/__thr_errno
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*
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* Get the per-thread errno location.
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*/
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int *__errno_location(void) /* Linux */
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{
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pthread_descr descr = __pthread_thread_self();
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return &descr->thread_errno;
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}
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int *__error(void) { return __errno_location(); } /* FreeBSD */
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int *__errno(void) { return __errno_location(); } /* NetBSD */
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int *___errno(void) { return __errno_location(); } /* Solaris */
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int *__thr_errno(void) { return __errno_location(); } /* UnixWare */
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/***********************************************************************
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* __h_errno_location
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*
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* Get the per-thread h_errno location.
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*/
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int *__h_errno_location(void)
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{
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pthread_descr descr = __pthread_thread_self();
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return &descr->thread_h_errno;
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}
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struct __res_state *__res_state(void)
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{
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pthread_descr descr = __pthread_thread_self();
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return &descr->res_state;
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}
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static inline void writejump( const char *symbol, void *dest )
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{
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#if defined(__GLIBC__) && defined(__i386__)
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unsigned char *addr = dlsym( RTLD_NEXT, symbol );
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if (!addr) return;
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/* write a relative jump at the function address */
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mprotect((void*)((unsigned int)addr & ~(getpagesize()-1)), 5, PROT_READ|PROT_EXEC|PROT_WRITE);
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addr[0] = 0xe9;
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*(int *)(addr+1) = (unsigned char *)dest - (addr + 5);
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mprotect((void*)((unsigned int)addr & ~(getpagesize()-1)), 5, PROT_READ|PROT_EXEC);
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# ifdef HAVE_VALGRIND_MEMCHECK_H
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VALGRIND_DISCARD_TRANSLATIONS( addr, 5 );
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# endif
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#endif /* __GLIBC__ && __i386__ */
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}
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/***********************************************************************
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* wine_pthread_init_process
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*
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* Initialization for a newly created process.
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*/
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void wine_pthread_init_process( const struct wine_pthread_functions *functions )
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{
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memcpy( &funcs, functions, sizeof(funcs) );
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funcs.ptr_set_thread_data( &initial_descr );
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initial_descr.cancel_state = PTHREAD_CANCEL_ENABLE;
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initial_descr.cancel_type = PTHREAD_CANCEL_ASYNCHRONOUS;
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writejump( "__errno_location", __errno_location );
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writejump( "__h_errno_location", __h_errno_location );
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writejump( "__res_state", __res_state );
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if (libc_uselocale) libc_uselocale( -1 /*LC_GLOBAL_LOCALE*/ );
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}
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/***********************************************************************
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* wine_pthread_init_thread
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*
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* Initialization for a newly created thread.
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*/
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void wine_pthread_init_thread(void)
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{
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if (funcs.ptr_set_thread_data)
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{
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struct pthread_descr_struct *descr = calloc( 1, sizeof(*descr) );
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funcs.ptr_set_thread_data( descr );
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descr->cancel_state = PTHREAD_CANCEL_ENABLE;
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descr->cancel_type = PTHREAD_CANCEL_ASYNCHRONOUS;
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if (libc_multiple_threads) *libc_multiple_threads = 1;
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if (libc_uselocale) libc_uselocale( -1 /*LC_GLOBAL_LOCALE*/ );
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}
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/* else it's the first thread, init will be done in wine_pthread_init_process */
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}
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/* Currently this probably works only for glibc2,
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* which checks for the presence of double-underscore-prepended
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* pthread primitives, and use them if available.
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* If they are not available, the libc defaults to
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* non-threadsafe operation (not good). */
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#if defined(__GLIBC__) || defined(__FreeBSD__)
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#ifndef __USE_UNIX98
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#define __USE_UNIX98
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#endif
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#include <pthread.h>
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/* adapt as necessary (a construct like this is used in glibc sources) */
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#define strong_alias(orig, alias) \
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asm(".globl " PSTR(alias) "\n" \
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"\t.set " PSTR(alias) "," PSTR(orig))
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struct fork_block;
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/* pthread functions redirection */
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struct pthread_functions
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{
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pid_t (*ptr_pthread_fork) (struct fork_block *);
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int (*ptr_pthread_attr_destroy) (pthread_attr_t *);
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int (*ptr___pthread_attr_init_2_0) (pthread_attr_t *);
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int (*ptr___pthread_attr_init_2_1) (pthread_attr_t *);
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int (*ptr_pthread_attr_getdetachstate) (const pthread_attr_t *, int *);
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int (*ptr_pthread_attr_setdetachstate) (pthread_attr_t *, int);
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int (*ptr_pthread_attr_getinheritsched) (const pthread_attr_t *, int *);
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int (*ptr_pthread_attr_setinheritsched) (pthread_attr_t *, int);
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int (*ptr_pthread_attr_getschedparam) (const pthread_attr_t *, struct sched_param *);
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int (*ptr_pthread_attr_setschedparam) (pthread_attr_t *, const struct sched_param *);
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int (*ptr_pthread_attr_getschedpolicy) (const pthread_attr_t *, int *);
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int (*ptr_pthread_attr_setschedpolicy) (pthread_attr_t *, int);
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int (*ptr_pthread_attr_getscope) (const pthread_attr_t *, int *);
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int (*ptr_pthread_attr_setscope) (pthread_attr_t *, int);
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int (*ptr_pthread_condattr_destroy) (pthread_condattr_t *);
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int (*ptr_pthread_condattr_init) (pthread_condattr_t *);
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int (*ptr___pthread_cond_broadcast) (pthread_cond_t *);
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int (*ptr___pthread_cond_destroy) (pthread_cond_t *);
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int (*ptr___pthread_cond_init) (pthread_cond_t *, const pthread_condattr_t *);
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int (*ptr___pthread_cond_signal) (pthread_cond_t *);
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int (*ptr___pthread_cond_wait) (pthread_cond_t *, pthread_mutex_t *);
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int (*ptr_pthread_equal) (pthread_t, pthread_t);
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void (*ptr___pthread_exit) (void *);
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int (*ptr_pthread_getschedparam) (pthread_t, int *, struct sched_param *);
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int (*ptr_pthread_setschedparam) (pthread_t, int, const struct sched_param *);
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int (*ptr_pthread_mutex_destroy) (pthread_mutex_t *);
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int (*ptr_pthread_mutex_init) (pthread_mutex_t *, const pthread_mutexattr_t *);
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int (*ptr_pthread_mutex_lock) (pthread_mutex_t *);
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int (*ptr_pthread_mutex_trylock) (pthread_mutex_t *);
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int (*ptr_pthread_mutex_unlock) (pthread_mutex_t *);
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pthread_t (*ptr_pthread_self) (void);
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int (*ptr_pthread_setcancelstate) (int, int *);
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int (*ptr_pthread_setcanceltype) (int, int *);
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void (*ptr_pthread_do_exit) (void *retval, char *currentframe);
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void (*ptr_pthread_cleanup_upto) (jmp_buf target, char *targetframe);
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pthread_descr (*ptr_pthread_thread_self) (void);
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int (*ptr_pthread_internal_tsd_set) (int key, const void *pointer);
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void * (*ptr_pthread_internal_tsd_get) (int key);
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void ** __attribute__ ((__const__)) (*ptr_pthread_internal_tsd_address) (int key);
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int (*ptr_pthread_sigaction) (int sig, const struct sigaction * act, struct sigaction *oact);
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int (*ptr_pthread_sigwait) (const sigset_t *set, int *sig);
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int (*ptr_pthread_raise) (int sig);
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int (*ptr___pthread_cond_timedwait) (pthread_cond_t *, pthread_mutex_t *, const struct timespec *);
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};
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static pid_t (*libc_fork)(void);
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static int (*libc_sigaction)(int signum, const struct sigaction *act, struct sigaction *oldact);
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static int *(*libc_pthread_init)( const struct pthread_functions *funcs );
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static struct pthread_functions libc_pthread_functions;
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strong_alias(__pthread_thread_self, pthread_thread_self);
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/* redefine this to prevent libpthread from overriding our function pointers */
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int *__libc_pthread_init( const struct pthread_functions *funcs )
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{
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return libc_multiple_threads;
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}
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typedef struct _wine_cleanup {
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void (*routine)(void *);
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void *arg;
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} *wine_cleanup;
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int pthread_create(pthread_t* thread, const pthread_attr_t* attr, void*
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(*start_routine)(void *), void* arg)
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{
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assert( funcs.ptr_pthread_create );
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return funcs.ptr_pthread_create( thread, attr, start_routine, arg );
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}
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int pthread_cancel(pthread_t thread)
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{
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assert( funcs.ptr_pthread_cancel );
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return funcs.ptr_pthread_cancel( thread );
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}
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int pthread_join(pthread_t thread, void **value_ptr)
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{
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assert( funcs.ptr_pthread_join );
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return funcs.ptr_pthread_join( thread, value_ptr );
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}
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int pthread_detach(pthread_t thread)
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{
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assert( funcs.ptr_pthread_detach );
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return funcs.ptr_pthread_detach( thread );
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}
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/* FIXME: we have no equivalents in win32 for the policys */
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/* so just keep this as a stub */
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int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
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{
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P_OUTPUT("FIXME:pthread_attr_setschedpolicy\n");
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return 0;
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}
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/* FIXME: no win32 equivalent for scope */
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int pthread_attr_setscope(pthread_attr_t *attr, int scope)
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{
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P_OUTPUT("FIXME:pthread_attr_setscope\n");
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return 0; /* return success */
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}
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/* FIXME: no win32 equivalent for schedule param */
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int pthread_attr_setschedparam(pthread_attr_t *attr,
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const struct sched_param *param)
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{
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P_OUTPUT("FIXME:pthread_attr_setschedparam\n");
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return 0; /* return success */
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}
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/* FIXME */
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int pthread_attr_setstack(pthread_attr_t *attr, void *addr, size_t size)
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{
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return 0; /* return success */
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}
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int __pthread_once(pthread_once_t *once_control, void (*init_routine)(void))
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{
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static pthread_once_t the_once = PTHREAD_ONCE_INIT;
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long once_now;
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memcpy(&once_now,&the_once,sizeof(once_now));
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if (interlocked_cmpxchg((long*)once_control, once_now+1, once_now) == once_now)
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(*init_routine)();
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return 0;
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}
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strong_alias(__pthread_once, pthread_once);
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void __pthread_kill_other_threads_np(void)
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{
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/* we don't need to do anything here */
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}
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strong_alias(__pthread_kill_other_threads_np, pthread_kill_other_threads_np);
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/***** atfork *****/
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#define MAX_ATFORK 8 /* libc doesn't need that many anyway */
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static pthread_mutex_t atfork_mutex = PTHREAD_MUTEX_INITIALIZER;
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typedef void (*atfork_handler)();
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static atfork_handler atfork_prepare[MAX_ATFORK];
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static atfork_handler atfork_parent[MAX_ATFORK];
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static atfork_handler atfork_child[MAX_ATFORK];
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static int atfork_count;
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int __pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void))
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{
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pthread_mutex_lock( &atfork_mutex );
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assert( atfork_count < MAX_ATFORK );
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atfork_prepare[atfork_count] = prepare;
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atfork_parent[atfork_count] = parent;
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atfork_child[atfork_count] = child;
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atfork_count++;
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pthread_mutex_unlock( &atfork_mutex );
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return 0;
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}
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strong_alias(__pthread_atfork, pthread_atfork);
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pid_t __fork(void)
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{
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pid_t pid;
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int i;
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if (!libc_fork)
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{
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libc_fork = dlsym( RTLD_NEXT, "fork" );
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assert( libc_fork );
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}
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pthread_mutex_lock( &atfork_mutex );
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/* prepare handlers are called in reverse insertion order */
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for (i = atfork_count - 1; i >= 0; i--) if (atfork_prepare[i]) atfork_prepare[i]();
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if (!(pid = libc_fork()))
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{
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pthread_mutex_init( &atfork_mutex, NULL );
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for (i = 0; i < atfork_count; i++) if (atfork_child[i]) atfork_child[i]();
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}
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else
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{
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for (i = 0; i < atfork_count; i++) if (atfork_parent[i]) atfork_parent[i]();
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pthread_mutex_unlock( &atfork_mutex );
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}
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return pid;
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}
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strong_alias(__fork, fork);
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/***** MUTEXES *****/
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int __pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr)
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{
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if (!funcs.ptr_pthread_mutex_init) return 0;
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return funcs.ptr_pthread_mutex_init( mutex, mutexattr );
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}
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strong_alias(__pthread_mutex_init, pthread_mutex_init);
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int __pthread_mutex_lock(pthread_mutex_t *mutex)
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{
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if (!funcs.ptr_pthread_mutex_lock) return 0;
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return funcs.ptr_pthread_mutex_lock( mutex );
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}
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strong_alias(__pthread_mutex_lock, pthread_mutex_lock);
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int __pthread_mutex_trylock(pthread_mutex_t *mutex)
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{
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if (!funcs.ptr_pthread_mutex_trylock) return 0;
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return funcs.ptr_pthread_mutex_trylock( mutex );
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}
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strong_alias(__pthread_mutex_trylock, pthread_mutex_trylock);
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int __pthread_mutex_unlock(pthread_mutex_t *mutex)
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{
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if (!funcs.ptr_pthread_mutex_unlock) return 0;
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return funcs.ptr_pthread_mutex_unlock( mutex );
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}
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strong_alias(__pthread_mutex_unlock, pthread_mutex_unlock);
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int __pthread_mutex_destroy(pthread_mutex_t *mutex)
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{
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if (!funcs.ptr_pthread_mutex_destroy) return 0;
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return funcs.ptr_pthread_mutex_destroy( mutex );
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}
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strong_alias(__pthread_mutex_destroy, pthread_mutex_destroy);
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/***** MUTEX ATTRIBUTES *****/
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/* just dummies, since critical sections are always recursive */
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int __pthread_mutexattr_init(pthread_mutexattr_t *attr)
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{
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return 0;
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}
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strong_alias(__pthread_mutexattr_init, pthread_mutexattr_init);
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int __pthread_mutexattr_destroy(pthread_mutexattr_t *attr)
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{
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return 0;
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}
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strong_alias(__pthread_mutexattr_destroy, pthread_mutexattr_destroy);
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int __pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind)
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{
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return 0;
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}
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strong_alias(__pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np);
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int __pthread_mutexattr_getkind_np(pthread_mutexattr_t *attr, int *kind)
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{
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*kind = PTHREAD_MUTEX_RECURSIVE;
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return 0;
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}
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strong_alias(__pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np);
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|
|
|
int __pthread_mutexattr_settype(pthread_mutexattr_t *attr, int kind)
|
|
{
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_mutexattr_settype, pthread_mutexattr_settype);
|
|
|
|
int __pthread_mutexattr_gettype(pthread_mutexattr_t *attr, int *kind)
|
|
{
|
|
*kind = PTHREAD_MUTEX_RECURSIVE;
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_mutexattr_gettype, pthread_mutexattr_gettype);
|
|
|
|
|
|
/***** THREAD-SPECIFIC VARIABLES (KEYS) *****/
|
|
|
|
int __pthread_key_create(pthread_key_t *key, void (*destr_function)(void *))
|
|
{
|
|
static long keycnt = FIRST_KEY;
|
|
*key = interlocked_xchg_add(&keycnt, 1);
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_key_create, pthread_key_create);
|
|
|
|
int __pthread_key_delete(pthread_key_t key)
|
|
{
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_key_delete, pthread_key_delete);
|
|
|
|
int __pthread_setspecific(pthread_key_t key, const void *pointer)
|
|
{
|
|
pthread_descr descr = __pthread_thread_self();
|
|
descr->key_data[key] = pointer;
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_setspecific, pthread_setspecific);
|
|
|
|
void *__pthread_getspecific(pthread_key_t key)
|
|
{
|
|
pthread_descr descr = __pthread_thread_self();
|
|
return (void *)descr->key_data[key];
|
|
}
|
|
strong_alias(__pthread_getspecific, pthread_getspecific);
|
|
|
|
static int pthread_internal_tsd_set( int key, const void *pointer )
|
|
{
|
|
pthread_descr descr = __pthread_thread_self();
|
|
descr->tsd_data[key] = pointer;
|
|
return 0;
|
|
}
|
|
int (*__libc_internal_tsd_set)(int, const void *) = pthread_internal_tsd_set;
|
|
|
|
static void *pthread_internal_tsd_get( int key )
|
|
{
|
|
pthread_descr descr = __pthread_thread_self();
|
|
return (void *)descr->tsd_data[key];
|
|
}
|
|
void* (*__libc_internal_tsd_get)(int) = pthread_internal_tsd_get;
|
|
|
|
static void ** __attribute__((const)) pthread_internal_tsd_address( int key )
|
|
{
|
|
pthread_descr descr = __pthread_thread_self();
|
|
return (void **)&descr->tsd_data[key];
|
|
}
|
|
void** (*__libc_internal_tsd_address)(int) = pthread_internal_tsd_address;
|
|
|
|
/***** "EXCEPTION" FRAMES *****/
|
|
/* not implemented right now */
|
|
|
|
void _pthread_cleanup_push(struct _pthread_cleanup_buffer *buffer, void (*routine)(void *), void *arg)
|
|
{
|
|
((wine_cleanup)buffer)->routine = routine;
|
|
((wine_cleanup)buffer)->arg = arg;
|
|
}
|
|
|
|
void _pthread_cleanup_pop(struct _pthread_cleanup_buffer *buffer, int execute)
|
|
{
|
|
if (execute) (*(((wine_cleanup)buffer)->routine))(((wine_cleanup)buffer)->arg);
|
|
}
|
|
|
|
void _pthread_cleanup_push_defer(struct _pthread_cleanup_buffer *buffer, void (*routine)(void *), void *arg)
|
|
{
|
|
_pthread_cleanup_push(buffer, routine, arg);
|
|
}
|
|
|
|
void _pthread_cleanup_pop_restore(struct _pthread_cleanup_buffer *buffer, int execute)
|
|
{
|
|
_pthread_cleanup_pop(buffer, execute);
|
|
}
|
|
|
|
void __pthread_cleanup_upto(jmp_buf target, char *frame)
|
|
{
|
|
/* FIXME */
|
|
}
|
|
|
|
/***** CONDITIONS *****/
|
|
/* not implemented right now */
|
|
|
|
int __pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *cond_attr)
|
|
{
|
|
P_OUTPUT("FIXME:pthread_cond_init\n");
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_cond_init, pthread_cond_init);
|
|
|
|
int __pthread_cond_destroy(pthread_cond_t *cond)
|
|
{
|
|
P_OUTPUT("FIXME:pthread_cond_destroy\n");
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_cond_destroy, pthread_cond_destroy);
|
|
|
|
int __pthread_cond_signal(pthread_cond_t *cond)
|
|
{
|
|
P_OUTPUT("FIXME:pthread_cond_signal\n");
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_cond_signal, pthread_cond_signal);
|
|
|
|
int __pthread_cond_broadcast(pthread_cond_t *cond)
|
|
{
|
|
P_OUTPUT("FIXME:pthread_cond_broadcast\n");
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_cond_broadcast, pthread_cond_broadcast);
|
|
|
|
int __pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
|
|
{
|
|
P_OUTPUT("FIXME:pthread_cond_wait\n");
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_cond_wait, pthread_cond_wait);
|
|
|
|
int __pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, const struct timespec *abstime)
|
|
{
|
|
P_OUTPUT("FIXME:pthread_cond_timedwait\n");
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_cond_timedwait, pthread_cond_timedwait);
|
|
|
|
/**** CONDITION ATTRIBUTES *****/
|
|
/* not implemented right now */
|
|
|
|
int pthread_condattr_init(pthread_condattr_t *attr)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int pthread_condattr_destroy(pthread_condattr_t *attr)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/***** READ-WRITE LOCKS *****/
|
|
|
|
int __pthread_rwlock_init(pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *rwlock_attr)
|
|
{
|
|
assert( funcs.ptr_pthread_rwlock_init );
|
|
return funcs.ptr_pthread_rwlock_init( rwlock, rwlock_attr );
|
|
}
|
|
strong_alias(__pthread_rwlock_init, pthread_rwlock_init);
|
|
|
|
int __pthread_rwlock_destroy(pthread_rwlock_t *rwlock)
|
|
{
|
|
assert( funcs.ptr_pthread_rwlock_destroy );
|
|
return funcs.ptr_pthread_rwlock_destroy( rwlock );
|
|
}
|
|
strong_alias(__pthread_rwlock_destroy, pthread_rwlock_destroy);
|
|
|
|
int __pthread_rwlock_rdlock(pthread_rwlock_t *rwlock)
|
|
{
|
|
if (!funcs.ptr_pthread_rwlock_rdlock) return 0;
|
|
return funcs.ptr_pthread_rwlock_rdlock( rwlock );
|
|
}
|
|
strong_alias(__pthread_rwlock_rdlock, pthread_rwlock_rdlock);
|
|
|
|
int __pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock)
|
|
{
|
|
assert( funcs.ptr_pthread_rwlock_tryrdlock );
|
|
return funcs.ptr_pthread_rwlock_tryrdlock( rwlock );
|
|
}
|
|
strong_alias(__pthread_rwlock_tryrdlock, pthread_rwlock_tryrdlock);
|
|
|
|
int __pthread_rwlock_wrlock(pthread_rwlock_t *rwlock)
|
|
{
|
|
assert( funcs.ptr_pthread_rwlock_wrlock );
|
|
return funcs.ptr_pthread_rwlock_wrlock( rwlock );
|
|
}
|
|
strong_alias(__pthread_rwlock_wrlock, pthread_rwlock_wrlock);
|
|
|
|
int __pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock)
|
|
{
|
|
assert( funcs.ptr_pthread_rwlock_trywrlock );
|
|
return funcs.ptr_pthread_rwlock_trywrlock( rwlock );
|
|
}
|
|
strong_alias(__pthread_rwlock_trywrlock, pthread_rwlock_trywrlock);
|
|
|
|
int __pthread_rwlock_unlock(pthread_rwlock_t *rwlock)
|
|
{
|
|
assert( funcs.ptr_pthread_rwlock_unlock );
|
|
return funcs.ptr_pthread_rwlock_unlock( rwlock );
|
|
}
|
|
strong_alias(__pthread_rwlock_unlock, pthread_rwlock_unlock);
|
|
|
|
/**** READ-WRITE LOCK ATTRIBUTES *****/
|
|
/* not implemented right now */
|
|
|
|
int pthread_rwlockattr_init(pthread_rwlockattr_t *attr)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int __pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr)
|
|
{
|
|
return 0;
|
|
}
|
|
strong_alias(__pthread_rwlockattr_destroy, pthread_rwlockattr_destroy);
|
|
|
|
int pthread_rwlockattr_getkind_np(const pthread_rwlockattr_t *attr, int *pref)
|
|
{
|
|
*pref = 0;
|
|
return 0;
|
|
}
|
|
|
|
int pthread_rwlockattr_setkind_np(pthread_rwlockattr_t *attr, int pref)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/***** MISC *****/
|
|
|
|
pthread_t pthread_self(void)
|
|
{
|
|
assert( funcs.ptr_pthread_self );
|
|
return funcs.ptr_pthread_self();
|
|
}
|
|
|
|
int pthread_equal(pthread_t thread1, pthread_t thread2)
|
|
{
|
|
assert( funcs.ptr_pthread_equal );
|
|
return funcs.ptr_pthread_equal( thread1, thread2 );
|
|
}
|
|
|
|
void __pthread_do_exit(void *retval, char *currentframe)
|
|
{
|
|
assert( funcs.ptr_pthread_exit );
|
|
return funcs.ptr_pthread_exit( retval, currentframe );
|
|
}
|
|
|
|
void __pthread_exit(void *retval)
|
|
{
|
|
__pthread_do_exit( retval, NULL );
|
|
}
|
|
strong_alias(__pthread_exit, pthread_exit);
|
|
|
|
int pthread_setcancelstate(int state, int *oldstate)
|
|
{
|
|
pthread_descr descr = __pthread_thread_self();
|
|
if (oldstate) *oldstate = descr->cancel_state;
|
|
descr->cancel_state = state;
|
|
return 0;
|
|
}
|
|
|
|
int pthread_setcanceltype(int type, int *oldtype)
|
|
{
|
|
pthread_descr descr = __pthread_thread_self();
|
|
if (oldtype) *oldtype = descr->cancel_type;
|
|
descr->cancel_type = type;
|
|
return 0;
|
|
}
|
|
|
|
/***** ANTI-OVERRIDES *****/
|
|
/* pthreads tries to override these, point them back to libc */
|
|
|
|
int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact)
|
|
{
|
|
if (!libc_sigaction)
|
|
{
|
|
libc_sigaction = dlsym( RTLD_NEXT, "sigaction" );
|
|
assert( libc_sigaction );
|
|
}
|
|
return libc_sigaction(signum, act, oldact);
|
|
}
|
|
|
|
void __pthread_initialize(void)
|
|
{
|
|
static int done;
|
|
|
|
if (!done)
|
|
{
|
|
done = 1;
|
|
libc_fork = dlsym( RTLD_NEXT, "fork" );
|
|
libc_sigaction = dlsym( RTLD_NEXT, "sigaction" );
|
|
libc_uselocale = dlsym( RTLD_NEXT, "uselocale" );
|
|
libc_pthread_init = dlsym( RTLD_NEXT, "__libc_pthread_init" );
|
|
if (libc_pthread_init) libc_multiple_threads = libc_pthread_init( &libc_pthread_functions );
|
|
}
|
|
}
|
|
DECL_GLOBAL_CONSTRUCTOR(init) { __pthread_initialize(); }
|
|
|
|
static struct pthread_functions libc_pthread_functions =
|
|
{
|
|
NULL, /* ptr_pthread_fork */
|
|
NULL, /* FIXME */ /* ptr_pthread_attr_destroy */
|
|
NULL, /* FIXME */ /* ptr___pthread_attr_init_2_0 */
|
|
NULL, /* FIXME */ /* ptr___pthread_attr_init_2_1 */
|
|
NULL, /* FIXME */ /* ptr_pthread_attr_getdetachstate */
|
|
NULL, /* FIXME */ /* ptr_pthread_attr_setdetachstate */
|
|
NULL, /* FIXME */ /* ptr_pthread_attr_getinheritsched */
|
|
NULL, /* FIXME */ /* ptr_pthread_attr_setinheritsched */
|
|
NULL, /* FIXME */ /* ptr_pthread_attr_getschedparam */
|
|
pthread_attr_setschedparam, /* ptr_pthread_attr_setschedparam */
|
|
NULL, /* FIXME */ /* ptr_pthread_attr_getschedpolicy) (const pthread_attr_t *, int *); */
|
|
NULL, /* FIXME */ /* ptr_pthread_attr_setschedpolicy) (pthread_attr_t *, int); */
|
|
NULL, /* FIXME */ /* ptr_pthread_attr_getscope) (const pthread_attr_t *, int *); */
|
|
NULL, /* FIXME */ /* ptr_pthread_attr_setscope) (pthread_attr_t *, int); */
|
|
pthread_condattr_destroy, /* ptr_pthread_condattr_destroy */
|
|
pthread_condattr_init, /* ptr_pthread_condattr_init */
|
|
__pthread_cond_broadcast, /* ptr___pthread_cond_broadcast */
|
|
__pthread_cond_destroy, /* ptr___pthread_cond_destroy */
|
|
__pthread_cond_init, /* ptr___pthread_cond_init */
|
|
__pthread_cond_signal, /* ptr___pthread_cond_signal */
|
|
__pthread_cond_wait, /* ptr___pthread_cond_wait */
|
|
pthread_equal, /* ptr_pthread_equal */
|
|
__pthread_exit, /* ptr___pthread_exit */
|
|
NULL, /* FIXME */ /* ptr_pthread_getschedparam */
|
|
NULL, /* FIXME */ /* ptr_pthread_setschedparam */
|
|
__pthread_mutex_destroy, /* ptr_pthread_mutex_destroy */
|
|
__pthread_mutex_init, /* ptr_pthread_mutex_init */
|
|
__pthread_mutex_lock, /* ptr_pthread_mutex_lock */
|
|
__pthread_mutex_trylock, /* ptr_pthread_mutex_trylock */
|
|
__pthread_mutex_unlock, /* ptr_pthread_mutex_unlock */
|
|
pthread_self, /* ptr_pthread_self */
|
|
pthread_setcancelstate, /* ptr_pthread_setcancelstate */
|
|
pthread_setcanceltype, /* ptr_pthread_setcanceltype */
|
|
__pthread_do_exit, /* ptr_pthread_do_exit */
|
|
__pthread_cleanup_upto, /* ptr_pthread_cleanup_upto */
|
|
__pthread_thread_self, /* ptr_pthread_thread_self */
|
|
pthread_internal_tsd_set, /* ptr_pthread_internal_tsd_set */
|
|
pthread_internal_tsd_get, /* ptr_pthread_internal_tsd_get */
|
|
pthread_internal_tsd_address, /* ptr_pthread_internal_tsd_address */
|
|
NULL, /* ptr_pthread_sigaction */
|
|
NULL, /* ptr_pthread_sigwait */
|
|
NULL, /* ptr_pthread_raise */
|
|
__pthread_cond_timedwait /* ptr___pthread_cond_timedwait */
|
|
};
|
|
|
|
#endif /* __GLIBC__ || __FREEBSD__ */
|
|
|
|
#else /* HAVE_NPTL */
|
|
|
|
void wine_pthread_init_process( const struct wine_pthread_functions *functions )
|
|
{
|
|
}
|
|
|
|
void wine_pthread_init_thread(void)
|
|
{
|
|
}
|
|
|
|
#endif /* HAVE_NPTL */
|