/* * pthread emulation for re-entrant libcs * * We can't use pthreads directly, so why not let libcs * that want pthreads use Wine's own threading instead... * * Copyright 1999 Ove Kåven * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "config.h" #include "wine/port.h" #ifndef HAVE_NPTL struct _pthread_cleanup_buffer; #define _GNU_SOURCE /* we may need to override some GNU extensions */ #include #include #include #include #ifdef HAVE_UNISTD_H # include #endif #include #include #if HAVE_SYS_SOCKET_H # include #endif #ifdef HAVE_SYS_MMAN_H #include #endif #ifdef HAVE_NETINET_IN_H # include #endif #ifdef HAVE_RESOLV_H # include #endif #ifdef HAVE_VALGRIND_MEMCHECK_H #include #endif #include "winbase.h" #include "thread.h" #include "winternl.h" /* default errno before threading is initialized */ static int *default_errno_location(void) { static int static_errno; return &static_errno; } /* default h_errno before threading is initialized */ static int *default_h_errno_location(void) { static int static_h_errno; return &static_h_errno; } /* errno once threading is working */ static int *thread_errno_location(void) { return &NtCurrentTeb()->thread_errno; } /* h_errno once threading is working */ static int *thread_h_errno_location(void) { return &NtCurrentTeb()->thread_h_errno; } static int* (*errno_location_ptr)(void) = default_errno_location; static int* (*h_errno_location_ptr)(void) = default_h_errno_location; /*********************************************************************** * __errno_location/__error/__errno/___errno/__thr_errno * * Get the per-thread errno location. */ int *__errno_location(void) { return errno_location_ptr(); } /* Linux */ int *__error(void) { return errno_location_ptr(); } /* FreeBSD */ int *__errno(void) { return errno_location_ptr(); } /* NetBSD */ int *___errno(void) { return errno_location_ptr(); } /* Solaris */ int *__thr_errno(void) { return errno_location_ptr(); } /* UnixWare */ /*********************************************************************** * __h_errno_location * * Get the per-thread h_errno location. */ int *__h_errno_location(void) { return h_errno_location_ptr(); } /* Currently this probably works only for glibc2, * which checks for the presence of double-underscore-prepended * pthread primitives, and use them if available. * If they are not available, the libc defaults to * non-threadsafe operation (not good). */ #if defined(__GLIBC__) || defined(__FreeBSD__) #ifndef __USE_UNIX98 #define __USE_UNIX98 #endif #include #include #define P_OUTPUT(stuff) write(2,stuff,strlen(stuff)) #define PSTR(str) __ASM_NAME(#str) /* adapt as necessary (a construct like this is used in glibc sources) */ #define strong_alias(orig, alias) \ asm(".globl " PSTR(alias) "\n" \ "\t.set " PSTR(alias) "," PSTR(orig)) /* thread descriptor */ #define FIRST_KEY 0 #define MAX_KEYS 16 /* libc6 doesn't use that many, but... */ #define MAX_TSD 16 struct fork_block; struct pthread_descr_struct { char dummy[2048]; struct __res_state res_state; const void *key_data[MAX_KEYS]; /* for normal pthread keys */ const void *tsd_data[MAX_TSD]; /* for libc internal tsd variables */ }; typedef struct pthread_descr_struct *pthread_descr; static struct pthread_descr_struct initial_descr; pthread_descr __pthread_thread_self(void) { struct pthread_descr_struct *descr = NtCurrentTeb()->pthread_data; if (!descr) return &initial_descr; return descr; } strong_alias(__pthread_thread_self, pthread_thread_self); /* pthread functions redirection */ struct pthread_functions { pid_t (*ptr_pthread_fork) (struct fork_block *); int (*ptr_pthread_attr_destroy) (pthread_attr_t *); int (*ptr___pthread_attr_init_2_0) (pthread_attr_t *); int (*ptr___pthread_attr_init_2_1) (pthread_attr_t *); int (*ptr_pthread_attr_getdetachstate) (const pthread_attr_t *, int *); int (*ptr_pthread_attr_setdetachstate) (pthread_attr_t *, int); int (*ptr_pthread_attr_getinheritsched) (const pthread_attr_t *, int *); int (*ptr_pthread_attr_setinheritsched) (pthread_attr_t *, int); int (*ptr_pthread_attr_getschedparam) (const pthread_attr_t *, struct sched_param *); int (*ptr_pthread_attr_setschedparam) (pthread_attr_t *, const struct sched_param *); int (*ptr_pthread_attr_getschedpolicy) (const pthread_attr_t *, int *); int (*ptr_pthread_attr_setschedpolicy) (pthread_attr_t *, int); int (*ptr_pthread_attr_getscope) (const pthread_attr_t *, int *); int (*ptr_pthread_attr_setscope) (pthread_attr_t *, int); int (*ptr_pthread_condattr_destroy) (pthread_condattr_t *); int (*ptr_pthread_condattr_init) (pthread_condattr_t *); int (*ptr___pthread_cond_broadcast) (pthread_cond_t *); int (*ptr___pthread_cond_destroy) (pthread_cond_t *); int (*ptr___pthread_cond_init) (pthread_cond_t *, const pthread_condattr_t *); int (*ptr___pthread_cond_signal) (pthread_cond_t *); int (*ptr___pthread_cond_wait) (pthread_cond_t *, pthread_mutex_t *); int (*ptr_pthread_equal) (pthread_t, pthread_t); void (*ptr___pthread_exit) (void *); int (*ptr_pthread_getschedparam) (pthread_t, int *, struct sched_param *); int (*ptr_pthread_setschedparam) (pthread_t, int, const struct sched_param *); int (*ptr_pthread_mutex_destroy) (pthread_mutex_t *); int (*ptr_pthread_mutex_init) (pthread_mutex_t *, const pthread_mutexattr_t *); int (*ptr_pthread_mutex_lock) (pthread_mutex_t *); int (*ptr_pthread_mutex_trylock) (pthread_mutex_t *); int (*ptr_pthread_mutex_unlock) (pthread_mutex_t *); pthread_t (*ptr_pthread_self) (void); int (*ptr_pthread_setcancelstate) (int, int *); int (*ptr_pthread_setcanceltype) (int, int *); void (*ptr_pthread_do_exit) (void *retval, char *currentframe); void (*ptr_pthread_cleanup_upto) (jmp_buf target, char *targetframe); pthread_descr (*ptr_pthread_thread_self) (void); int (*ptr_pthread_internal_tsd_set) (int key, const void *pointer); void * (*ptr_pthread_internal_tsd_get) (int key); void ** __attribute__ ((__const__)) (*ptr_pthread_internal_tsd_address) (int key); int (*ptr_pthread_sigaction) (int sig, const struct sigaction * act, struct sigaction *oact); int (*ptr_pthread_sigwait) (const sigset_t *set, int *sig); int (*ptr_pthread_raise) (int sig); }; static struct pthread_functions wine_pthread_functions; static int init_done; static pid_t (*libc_fork)(void); static int (*libc_sigaction)(int signum, const struct sigaction *act, struct sigaction *oldact); static int (*libc_uselocale)(int set); static int *(*libc_pthread_init)( const struct pthread_functions *funcs ); static int *libc_multiple_threads; void PTHREAD_init_done(void) { init_done = 1; if (!libc_fork) libc_fork = dlsym( RTLD_NEXT, "fork" ); if (!libc_sigaction) libc_sigaction = dlsym( RTLD_NEXT, "sigaction" ); } struct __res_state *__res_state(void) { pthread_descr descr = __pthread_thread_self(); return &descr->res_state; } static inline void writejump( const char *symbol, void *dest ) { #if defined(__GLIBC__) && defined(__i386__) unsigned char *addr = dlsym( RTLD_NEXT, symbol ); if (!addr) return; /* write a relative jump at the function address */ mprotect((void*)((unsigned int)addr & ~(getpagesize()-1)), 5, PROT_READ|PROT_EXEC|PROT_WRITE); addr[0] = 0xe9; *(int *)(addr+1) = (unsigned char *)dest - (addr + 5); mprotect((void*)((unsigned int)addr & ~(getpagesize()-1)), 5, PROT_READ|PROT_EXEC); # ifdef HAVE_VALGRIND_MEMCHECK_H VALGRIND_DISCARD_TRANSLATIONS( addr, 5 ); # endif #endif /* __GLIBC__ && __i386__ */ } /*********************************************************************** * PTHREAD_init_thread * * Initialization for a newly created thread. */ void PTHREAD_init_thread(void) { static int first = 1; if (first) { first = 0; NtCurrentTeb()->pthread_data = &initial_descr; errno_location_ptr = thread_errno_location; h_errno_location_ptr = thread_h_errno_location; 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( &wine_pthread_functions ); writejump( "__errno_location", thread_errno_location ); writejump( "__h_errno_location", thread_h_errno_location ); writejump( "__res_state", __res_state ); } else { struct pthread_descr_struct *descr = calloc( 1, sizeof(*descr) ); NtCurrentTeb()->pthread_data = descr; if (libc_multiple_threads) *libc_multiple_threads = 1; } if (libc_uselocale) libc_uselocale( -1 /*LC_GLOBAL_LOCALE*/ ); } /* redefine this to prevent libpthread from overriding our function pointers */ int *__libc_pthread_init( const struct pthread_functions *funcs ) { return libc_multiple_threads; } /* NOTE: This is a truly extremely incredibly ugly hack! * But it does seem to work... */ /* assume that pthread_mutex_t has room for at least one pointer, * and hope that the users of pthread_mutex_t considers it opaque * (never checks what's in it) * also: assume that static initializer sets pointer to NULL */ typedef struct { #ifdef __GLIBC__ int reserved; #endif CRITICAL_SECTION *critsect; } *wine_mutex; /* see wine_mutex above for comments */ typedef struct { RTL_RWLOCK *lock; } *wine_rwlock; typedef struct _wine_cleanup { void (*routine)(void *); void *arg; } *wine_cleanup; void __pthread_initialize(void) { } struct pthread_thread_init { void* (*start_routine)(void*); void* arg; }; static DWORD CALLBACK pthread_thread_start(LPVOID data) { struct pthread_thread_init init = *(struct pthread_thread_init*)data; HeapFree(GetProcessHeap(),0,data); return (DWORD)init.start_routine(init.arg); } int pthread_create(pthread_t* thread, const pthread_attr_t* attr, void* (*start_routine)(void *), void* arg) { HANDLE hThread; struct pthread_thread_init* idata = HeapAlloc(GetProcessHeap(), 0, sizeof(struct pthread_thread_init)); idata->start_routine = start_routine; idata->arg = arg; hThread = CreateThread( NULL, 0, pthread_thread_start, idata, 0, (LPDWORD)thread); if(hThread) CloseHandle(hThread); else { HeapFree(GetProcessHeap(),0,idata); /* free idata struct on failure */ return EAGAIN; } return 0; } int pthread_cancel(pthread_t thread) { HANDLE hThread = OpenThread(THREAD_ALL_ACCESS, FALSE, (DWORD)thread); if(!TerminateThread(hThread, 0)) { CloseHandle(hThread); return EINVAL; /* return error */ } CloseHandle(hThread); return 0; /* return success */ } int pthread_join(pthread_t thread, void **value_ptr) { HANDLE hThread = OpenThread(THREAD_ALL_ACCESS, FALSE, (DWORD)thread); WaitForSingleObject(hThread, INFINITE); if(!GetExitCodeThread(hThread, (LPDWORD)value_ptr)) { CloseHandle(hThread); return EINVAL; /* FIXME: make this more correctly match */ } /* windows errors */ CloseHandle(hThread); return 0; } /*FIXME: not sure what to do with this one... */ int pthread_detach(pthread_t thread) { P_OUTPUT("FIXME:pthread_detach\n"); return 0; } /* FIXME: we have no equivalents in win32 for the policys */ /* so just keep this as a stub */ int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy) { P_OUTPUT("FIXME:pthread_attr_setschedpolicy\n"); return 0; } /* FIXME: no win32 equivalent for scope */ int pthread_attr_setscope(pthread_attr_t *attr, int scope) { P_OUTPUT("FIXME:pthread_attr_setscope\n"); return 0; /* return success */ } /* FIXME: no win32 equivalent for schedule param */ int pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param) { P_OUTPUT("FIXME:pthread_attr_setschedparam\n"); return 0; /* return success */ } int __pthread_once(pthread_once_t *once_control, void (*init_routine)(void)) { static pthread_once_t the_once = PTHREAD_ONCE_INIT; LONG once_now; memcpy(&once_now,&the_once,sizeof(once_now)); if (InterlockedCompareExchange((LONG*)once_control, once_now+1, once_now) == once_now) (*init_routine)(); return 0; } strong_alias(__pthread_once, pthread_once); void __pthread_kill_other_threads_np(void) { /* we don't need to do anything here */ } strong_alias(__pthread_kill_other_threads_np, pthread_kill_other_threads_np); /***** atfork *****/ #define MAX_ATFORK 8 /* libc doesn't need that many anyway */ static CRITICAL_SECTION atfork_section; static CRITICAL_SECTION_DEBUG critsect_debug = { 0, 0, &atfork_section, { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, 0, 0, { 0, (DWORD)(__FILE__ ": atfork_section") } }; static CRITICAL_SECTION atfork_section = { &critsect_debug, -1, 0, 0, 0, 0 }; typedef void (*atfork_handler)(); static atfork_handler atfork_prepare[MAX_ATFORK]; static atfork_handler atfork_parent[MAX_ATFORK]; static atfork_handler atfork_child[MAX_ATFORK]; static int atfork_count; int __pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void)) { if (init_done) RtlEnterCriticalSection( &atfork_section ); assert( atfork_count < MAX_ATFORK ); atfork_prepare[atfork_count] = prepare; atfork_parent[atfork_count] = parent; atfork_child[atfork_count] = child; atfork_count++; if (init_done) RtlLeaveCriticalSection( &atfork_section ); return 0; } strong_alias(__pthread_atfork, pthread_atfork); pid_t __fork(void) { pid_t pid; int i; if (!libc_fork) { libc_fork = dlsym( RTLD_NEXT, "fork" ); assert( libc_fork ); } RtlEnterCriticalSection( &atfork_section ); /* prepare handlers are called in reverse insertion order */ for (i = atfork_count - 1; i >= 0; i--) if (atfork_prepare[i]) atfork_prepare[i](); if (!(pid = libc_fork())) { RtlInitializeCriticalSection( &atfork_section ); for (i = 0; i < atfork_count; i++) if (atfork_child[i]) atfork_child[i](); } else { for (i = 0; i < atfork_count; i++) if (atfork_parent[i]) atfork_parent[i](); RtlLeaveCriticalSection( &atfork_section ); } return pid; } strong_alias(__fork, fork); /***** MUTEXES *****/ int __pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr) { /* glibc has a tendency to initialize mutexes very often, even in situations where they are not really used later on. As for us, initializing a mutex is very expensive, we postpone the real initialization until the time the mutex is first used. */ ((wine_mutex)mutex)->critsect = NULL; return 0; } strong_alias(__pthread_mutex_init, pthread_mutex_init); static void mutex_real_init( pthread_mutex_t *mutex ) { CRITICAL_SECTION *critsect = HeapAlloc(GetProcessHeap(), 0, sizeof(CRITICAL_SECTION)); RtlInitializeCriticalSection(critsect); if (InterlockedCompareExchangePointer((void**)&(((wine_mutex)mutex)->critsect),critsect,NULL) != NULL) { /* too late, some other thread already did it */ RtlDeleteCriticalSection(critsect); HeapFree(GetProcessHeap(), 0, critsect); } } int __pthread_mutex_lock(pthread_mutex_t *mutex) { if (!init_done) return 0; if (!((wine_mutex)mutex)->critsect) mutex_real_init( mutex ); RtlEnterCriticalSection(((wine_mutex)mutex)->critsect); return 0; } strong_alias(__pthread_mutex_lock, pthread_mutex_lock); int __pthread_mutex_trylock(pthread_mutex_t *mutex) { if (!init_done) return 0; if (!((wine_mutex)mutex)->critsect) mutex_real_init( mutex ); if (!RtlTryEnterCriticalSection(((wine_mutex)mutex)->critsect)) { errno = EBUSY; return -1; } return 0; } strong_alias(__pthread_mutex_trylock, pthread_mutex_trylock); int __pthread_mutex_unlock(pthread_mutex_t *mutex) { if (!((wine_mutex)mutex)->critsect) return 0; RtlLeaveCriticalSection(((wine_mutex)mutex)->critsect); return 0; } strong_alias(__pthread_mutex_unlock, pthread_mutex_unlock); int __pthread_mutex_destroy(pthread_mutex_t *mutex) { if (!((wine_mutex)mutex)->critsect) return 0; if (((wine_mutex)mutex)->critsect->RecursionCount) { #if 0 /* there seems to be a bug in libc6 that makes this a bad idea */ return EBUSY; #else while (((wine_mutex)mutex)->critsect->RecursionCount) RtlLeaveCriticalSection(((wine_mutex)mutex)->critsect); #endif } RtlDeleteCriticalSection(((wine_mutex)mutex)->critsect); HeapFree(GetProcessHeap(), 0, ((wine_mutex)mutex)->critsect); ((wine_mutex)mutex)->critsect = NULL; return 0; } strong_alias(__pthread_mutex_destroy, pthread_mutex_destroy); /***** MUTEX ATTRIBUTES *****/ /* just dummies, since critical sections are always recursive */ int __pthread_mutexattr_init(pthread_mutexattr_t *attr) { return 0; } strong_alias(__pthread_mutexattr_init, pthread_mutexattr_init); int __pthread_mutexattr_destroy(pthread_mutexattr_t *attr) { return 0; } strong_alias(__pthread_mutexattr_destroy, pthread_mutexattr_destroy); int __pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind) { return 0; } strong_alias(__pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np); int __pthread_mutexattr_getkind_np(pthread_mutexattr_t *attr, int *kind) { *kind = PTHREAD_MUTEX_RECURSIVE; return 0; } strong_alias(__pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np); 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 = InterlockedExchangeAdd(&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); /* these are not exported, they are only used in the pthread_functions structure */ static int pthread_internal_tsd_set( int key, const void *pointer ) { pthread_descr descr = __pthread_thread_self(); descr->tsd_data[key] = pointer; return 0; } static void *pthread_internal_tsd_get( int key ) { pthread_descr descr = __pthread_thread_self(); return (void *)descr->tsd_data[key]; } static void ** __attribute__((const)) pthread_internal_tsd_address( int key ) { pthread_descr descr = __pthread_thread_self(); return (void **)&descr->tsd_data[key]; } /***** "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; } #if (__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 2) /***** READ-WRITE LOCKS *****/ static void rwlock_real_init(pthread_rwlock_t *rwlock) { RTL_RWLOCK *lock = HeapAlloc(GetProcessHeap(), 0, sizeof(RTL_RWLOCK)); RtlInitializeResource(lock); if (InterlockedCompareExchangePointer((void**)&(((wine_rwlock)rwlock)->lock),lock,NULL) != NULL) { /* too late, some other thread already did it */ RtlDeleteResource(lock); HeapFree(GetProcessHeap(), 0, lock); } } int __pthread_rwlock_init(pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *rwlock_attr) { ((wine_rwlock)rwlock)->lock = NULL; return 0; } strong_alias(__pthread_rwlock_init, pthread_rwlock_init); int __pthread_rwlock_destroy(pthread_rwlock_t *rwlock) { if (!((wine_rwlock)rwlock)->lock) return 0; RtlDeleteResource(((wine_rwlock)rwlock)->lock); HeapFree(GetProcessHeap(), 0, ((wine_rwlock)rwlock)->lock); return 0; } strong_alias(__pthread_rwlock_destroy, pthread_rwlock_destroy); int __pthread_rwlock_rdlock(pthread_rwlock_t *rwlock) { if (!init_done) return 0; if (!((wine_rwlock)rwlock)->lock) rwlock_real_init( rwlock ); while(TRUE) if (RtlAcquireResourceShared(((wine_rwlock)rwlock)->lock, TRUE)) return 0; } strong_alias(__pthread_rwlock_rdlock, pthread_rwlock_rdlock); int __pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock) { if (!init_done) return 0; if (!((wine_rwlock)rwlock)->lock) rwlock_real_init( rwlock ); if (!RtlAcquireResourceShared(((wine_rwlock)rwlock)->lock, FALSE)) { errno = EBUSY; return -1; } return 0; } strong_alias(__pthread_rwlock_tryrdlock, pthread_rwlock_tryrdlock); int __pthread_rwlock_wrlock(pthread_rwlock_t *rwlock) { if (!init_done) return 0; if (!((wine_rwlock)rwlock)->lock) rwlock_real_init( rwlock ); while(TRUE) if (RtlAcquireResourceExclusive(((wine_rwlock)rwlock)->lock, TRUE)) return 0; } strong_alias(__pthread_rwlock_wrlock, pthread_rwlock_wrlock); int __pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock) { if (!init_done) return 0; if (!((wine_rwlock)rwlock)->lock) rwlock_real_init( rwlock ); if (!RtlAcquireResourceExclusive(((wine_rwlock)rwlock)->lock, FALSE)) { errno = EBUSY; return -1; } return 0; } strong_alias(__pthread_rwlock_trywrlock, pthread_rwlock_trywrlock); int __pthread_rwlock_unlock(pthread_rwlock_t *rwlock) { if (!((wine_rwlock)rwlock)->lock) return 0; RtlReleaseResource( ((wine_rwlock)rwlock)->lock ); return 0; } 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; } #endif /* glibc 2.2 */ /***** MISC *****/ pthread_t pthread_self(void) { return (pthread_t)GetCurrentThreadId(); } int pthread_equal(pthread_t thread1, pthread_t thread2) { return (DWORD)thread1 == (DWORD)thread2; } void __pthread_do_exit(void *retval, char *currentframe) { /* FIXME: pthread cleanup */ ExitThread((DWORD)retval); } void __pthread_exit(void *retval) { __pthread_do_exit( retval, NULL ); } strong_alias(__pthread_exit, pthread_exit); int pthread_setcanceltype(int type, int *oldtype) { if (oldtype) *oldtype = PTHREAD_CANCEL_ASYNCHRONOUS; 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); } static struct pthread_functions wine_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 */ NULL, /* FIXME */ /* 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 */ }; #endif /* __GLIBC__ || __FREEBSD__ */ #else /* HAVE_NPTL */ void PTHREAD_init_done(void) { } #endif /* HAVE_NPTL */