2 * Kernel synchronization objects
4 * Copyright 1998 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
29 #ifdef HAVE_SYS_IOCTL_H
30 #include <sys/ioctl.h>
32 #ifdef HAVE_SYS_POLL_H
40 #include "wine/server.h"
41 #include "wine/unicode.h"
44 #include "wine/debug.h"
46 WINE_DEFAULT_DEBUG_CHANNEL(win32);
48 /* check if current version is NT or Win95 */
49 inline static int is_version_nt(void)
51 return !(GetVersion() & 0x80000000);
55 /***********************************************************************
56 * CreateEventA (KERNEL32.@)
58 HANDLE WINAPI CreateEventA( SECURITY_ATTRIBUTES *sa, BOOL manual_reset,
59 BOOL initial_state, LPCSTR name )
61 WCHAR buffer[MAX_PATH];
63 if (!name) return CreateEventW( sa, manual_reset, initial_state, NULL );
65 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
67 SetLastError( ERROR_FILENAME_EXCED_RANGE );
70 return CreateEventW( sa, manual_reset, initial_state, buffer );
74 /***********************************************************************
75 * CreateEventW (KERNEL32.@)
77 HANDLE WINAPI CreateEventW( SECURITY_ATTRIBUTES *sa, BOOL manual_reset,
78 BOOL initial_state, LPCWSTR name )
81 DWORD len = name ? strlenW(name) : 0;
84 SetLastError( ERROR_FILENAME_EXCED_RANGE );
87 /* one buggy program needs this
88 * ("Van Dale Groot woordenboek der Nederlandse taal")
90 if (sa && IsBadReadPtr(sa,sizeof(SECURITY_ATTRIBUTES)))
92 ERR("Bad security attributes pointer %p\n",sa);
93 SetLastError( ERROR_INVALID_PARAMETER);
96 SERVER_START_REQ( create_event )
98 req->manual_reset = manual_reset;
99 req->initial_state = initial_state;
100 req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
101 wine_server_add_data( req, name, len * sizeof(WCHAR) );
103 wine_server_call_err( req );
111 /***********************************************************************
112 * CreateW32Event (KERNEL.457)
114 HANDLE WINAPI WIN16_CreateEvent( BOOL manual_reset, BOOL initial_state )
116 return CreateEventA( NULL, manual_reset, initial_state, NULL );
120 /***********************************************************************
121 * OpenEventA (KERNEL32.@)
123 HANDLE WINAPI OpenEventA( DWORD access, BOOL inherit, LPCSTR name )
125 WCHAR buffer[MAX_PATH];
127 if (!name) return OpenEventW( access, inherit, NULL );
129 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
131 SetLastError( ERROR_FILENAME_EXCED_RANGE );
134 return OpenEventW( access, inherit, buffer );
138 /***********************************************************************
139 * OpenEventW (KERNEL32.@)
141 HANDLE WINAPI OpenEventW( DWORD access, BOOL inherit, LPCWSTR name )
144 DWORD len = name ? strlenW(name) : 0;
147 SetLastError( ERROR_FILENAME_EXCED_RANGE );
150 if (!is_version_nt()) access = EVENT_ALL_ACCESS;
152 SERVER_START_REQ( open_event )
154 req->access = access;
155 req->inherit = inherit;
156 wine_server_add_data( req, name, len * sizeof(WCHAR) );
157 wine_server_call_err( req );
165 /***********************************************************************
168 * Execute an event operation (set,reset,pulse).
170 static BOOL EVENT_Operation( HANDLE handle, enum event_op op )
173 SERVER_START_REQ( event_op )
175 req->handle = handle;
177 ret = !wine_server_call_err( req );
184 /***********************************************************************
185 * PulseEvent (KERNEL32.@)
187 BOOL WINAPI PulseEvent( HANDLE handle )
189 return EVENT_Operation( handle, PULSE_EVENT );
193 /***********************************************************************
194 * SetW32Event (KERNEL.458)
195 * SetEvent (KERNEL32.@)
197 BOOL WINAPI SetEvent( HANDLE handle )
199 return EVENT_Operation( handle, SET_EVENT );
203 /***********************************************************************
204 * ResetW32Event (KERNEL.459)
205 * ResetEvent (KERNEL32.@)
207 BOOL WINAPI ResetEvent( HANDLE handle )
209 return EVENT_Operation( handle, RESET_EVENT );
213 /***********************************************************************
214 * NOTE: The Win95 VWin32_Event routines given below are really low-level
215 * routines implemented directly by VWin32. The user-mode libraries
216 * implement Win32 synchronisation routines on top of these low-level
217 * primitives. We do it the other way around here :-)
220 /***********************************************************************
221 * VWin32_EventCreate (KERNEL.442)
223 HANDLE WINAPI VWin32_EventCreate(VOID)
225 HANDLE hEvent = CreateEventA( NULL, FALSE, 0, NULL );
226 return ConvertToGlobalHandle( hEvent );
229 /***********************************************************************
230 * VWin32_EventDestroy (KERNEL.443)
232 VOID WINAPI VWin32_EventDestroy(HANDLE event)
234 CloseHandle( event );
237 /***********************************************************************
238 * VWin32_EventWait (KERNEL.450)
240 VOID WINAPI VWin32_EventWait(HANDLE event)
244 ReleaseThunkLock( &mutex_count );
245 WaitForSingleObject( event, INFINITE );
246 RestoreThunkLock( mutex_count );
249 /***********************************************************************
250 * VWin32_EventSet (KERNEL.451)
251 * KERNEL_479 (KERNEL.479)
253 VOID WINAPI VWin32_EventSet(HANDLE event)
260 /***********************************************************************
261 * CreateMutexA (KERNEL32.@)
263 HANDLE WINAPI CreateMutexA( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCSTR name )
265 WCHAR buffer[MAX_PATH];
267 if (!name) return CreateMutexW( sa, owner, NULL );
269 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
271 SetLastError( ERROR_FILENAME_EXCED_RANGE );
274 return CreateMutexW( sa, owner, buffer );
278 /***********************************************************************
279 * CreateMutexW (KERNEL32.@)
281 HANDLE WINAPI CreateMutexW( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCWSTR name )
284 DWORD len = name ? strlenW(name) : 0;
287 SetLastError( ERROR_FILENAME_EXCED_RANGE );
290 SERVER_START_REQ( create_mutex )
293 req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
294 wine_server_add_data( req, name, len * sizeof(WCHAR) );
296 wine_server_call_err( req );
304 /***********************************************************************
305 * OpenMutexA (KERNEL32.@)
307 HANDLE WINAPI OpenMutexA( DWORD access, BOOL inherit, LPCSTR name )
309 WCHAR buffer[MAX_PATH];
311 if (!name) return OpenMutexW( access, inherit, NULL );
313 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
315 SetLastError( ERROR_FILENAME_EXCED_RANGE );
318 return OpenMutexW( access, inherit, buffer );
322 /***********************************************************************
323 * OpenMutexW (KERNEL32.@)
325 HANDLE WINAPI OpenMutexW( DWORD access, BOOL inherit, LPCWSTR name )
328 DWORD len = name ? strlenW(name) : 0;
331 SetLastError( ERROR_FILENAME_EXCED_RANGE );
334 if (!is_version_nt()) access = MUTEX_ALL_ACCESS;
336 SERVER_START_REQ( open_mutex )
338 req->access = access;
339 req->inherit = inherit;
340 wine_server_add_data( req, name, len * sizeof(WCHAR) );
341 wine_server_call_err( req );
349 /***********************************************************************
350 * ReleaseMutex (KERNEL32.@)
352 BOOL WINAPI ReleaseMutex( HANDLE handle )
355 SERVER_START_REQ( release_mutex )
357 req->handle = handle;
358 ret = !wine_server_call_err( req );
370 /***********************************************************************
371 * CreateSemaphoreA (KERNEL32.@)
373 HANDLE WINAPI CreateSemaphoreA( SECURITY_ATTRIBUTES *sa, LONG initial, LONG max, LPCSTR name )
375 WCHAR buffer[MAX_PATH];
377 if (!name) return CreateSemaphoreW( sa, initial, max, NULL );
379 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
381 SetLastError( ERROR_FILENAME_EXCED_RANGE );
384 return CreateSemaphoreW( sa, initial, max, buffer );
388 /***********************************************************************
389 * CreateSemaphoreW (KERNEL32.@)
391 HANDLE WINAPI CreateSemaphoreW( SECURITY_ATTRIBUTES *sa, LONG initial,
392 LONG max, LPCWSTR name )
395 DWORD len = name ? strlenW(name) : 0;
397 /* Check parameters */
399 if ((max <= 0) || (initial < 0) || (initial > max))
401 SetLastError( ERROR_INVALID_PARAMETER );
406 SetLastError( ERROR_FILENAME_EXCED_RANGE );
410 SERVER_START_REQ( create_semaphore )
412 req->initial = (unsigned int)initial;
413 req->max = (unsigned int)max;
414 req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
415 wine_server_add_data( req, name, len * sizeof(WCHAR) );
417 wine_server_call_err( req );
425 /***********************************************************************
426 * OpenSemaphoreA (KERNEL32.@)
428 HANDLE WINAPI OpenSemaphoreA( DWORD access, BOOL inherit, LPCSTR name )
430 WCHAR buffer[MAX_PATH];
432 if (!name) return OpenSemaphoreW( access, inherit, NULL );
434 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
436 SetLastError( ERROR_FILENAME_EXCED_RANGE );
439 return OpenSemaphoreW( access, inherit, buffer );
443 /***********************************************************************
444 * OpenSemaphoreW (KERNEL32.@)
446 HANDLE WINAPI OpenSemaphoreW( DWORD access, BOOL inherit, LPCWSTR name )
449 DWORD len = name ? strlenW(name) : 0;
452 SetLastError( ERROR_FILENAME_EXCED_RANGE );
455 if (!is_version_nt()) access = SEMAPHORE_ALL_ACCESS;
457 SERVER_START_REQ( open_semaphore )
459 req->access = access;
460 req->inherit = inherit;
461 wine_server_add_data( req, name, len * sizeof(WCHAR) );
462 wine_server_call_err( req );
470 /***********************************************************************
471 * ReleaseSemaphore (KERNEL32.@)
473 BOOL WINAPI ReleaseSemaphore( HANDLE handle, LONG count, LONG *previous )
475 NTSTATUS status = NtReleaseSemaphore( handle, count, previous );
476 if (status) SetLastError( RtlNtStatusToDosError(status) );
486 /***********************************************************************
487 * CreateNamedPipeA (KERNEL32.@)
489 HANDLE WINAPI CreateNamedPipeA( LPCSTR name, DWORD dwOpenMode,
490 DWORD dwPipeMode, DWORD nMaxInstances,
491 DWORD nOutBufferSize, DWORD nInBufferSize,
492 DWORD nDefaultTimeOut, LPSECURITY_ATTRIBUTES attr )
494 WCHAR buffer[MAX_PATH];
496 if (!name) return CreateNamedPipeW( NULL, dwOpenMode, dwPipeMode, nMaxInstances,
497 nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr );
499 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
501 SetLastError( ERROR_FILENAME_EXCED_RANGE );
502 return INVALID_HANDLE_VALUE;
504 return CreateNamedPipeW( buffer, dwOpenMode, dwPipeMode, nMaxInstances,
505 nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr );
509 /***********************************************************************
510 * CreateNamedPipeW (KERNEL32.@)
512 HANDLE WINAPI CreateNamedPipeW( LPCWSTR name, DWORD dwOpenMode,
513 DWORD dwPipeMode, DWORD nMaxInstances,
514 DWORD nOutBufferSize, DWORD nInBufferSize,
515 DWORD nDefaultTimeOut, LPSECURITY_ATTRIBUTES attr )
519 static const WCHAR leadin[] = {'\\','\\','.','\\','P','I','P','E','\\'};
521 TRACE("(%s, %#08lx, %#08lx, %ld, %ld, %ld, %ld, %p)\n",
522 debugstr_w(name), dwOpenMode, dwPipeMode, nMaxInstances,
523 nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr );
527 SetLastError( ERROR_PATH_NOT_FOUND );
528 return INVALID_HANDLE_VALUE;
533 SetLastError( ERROR_FILENAME_EXCED_RANGE );
534 return INVALID_HANDLE_VALUE;
536 if (strncmpiW(name, leadin, sizeof(leadin)/sizeof(leadin[0])))
538 SetLastError( ERROR_INVALID_NAME );
539 return INVALID_HANDLE_VALUE;
541 SERVER_START_REQ( create_named_pipe )
543 req->openmode = dwOpenMode;
544 req->pipemode = dwPipeMode;
545 req->maxinstances = nMaxInstances;
546 req->outsize = nOutBufferSize;
547 req->insize = nInBufferSize;
548 req->timeout = nDefaultTimeOut;
549 wine_server_add_data( req, name, len * sizeof(WCHAR) );
551 if (!wine_server_call_err( req )) ret = reply->handle;
552 else ret = INVALID_HANDLE_VALUE;
559 /***********************************************************************
560 * PeekNamedPipe (KERNEL32.@)
562 BOOL WINAPI PeekNamedPipe( HANDLE hPipe, LPVOID lpvBuffer, DWORD cbBuffer,
563 LPDWORD lpcbRead, LPDWORD lpcbAvail, LPDWORD lpcbMessage )
568 fd = FILE_GetUnixHandle(hPipe, GENERIC_READ);
569 if (fd == -1) return FALSE;
571 if (ioctl(fd,FIONREAD, &avail ) != 0)
573 TRACE("FIONREAD failed reason: %s\n",strerror(errno));
577 if (!avail) /* check for closed pipe */
579 struct pollfd pollfd;
581 pollfd.events = POLLIN;
583 switch (poll( &pollfd, 1, 0 ))
587 case 1: /* got something */
588 if (!(pollfd.revents & (POLLHUP | POLLERR))) break;
589 TRACE("POLLHUP | POLLERR\n");
593 SetLastError(ERROR_BROKEN_PIPE);
598 TRACE(" 0x%08x bytes available\n", avail );
599 if (!lpvBuffer && lpcbAvail)
604 #endif /* defined(FIONREAD) */
606 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
607 FIXME("function not implemented\n");
611 /***********************************************************************
612 * SYNC_CompletePipeOverlapped (Internal)
614 static void SYNC_CompletePipeOverlapped (LPOVERLAPPED overlapped, DWORD result)
616 TRACE("for %p result %08lx\n",overlapped,result);
619 overlapped->Internal = result;
620 SetEvent(overlapped->hEvent);
624 /***********************************************************************
625 * WaitNamedPipeA (KERNEL32.@)
627 BOOL WINAPI WaitNamedPipeA (LPCSTR name, DWORD nTimeOut)
629 WCHAR buffer[MAX_PATH];
631 if (!name) return WaitNamedPipeW( NULL, nTimeOut );
633 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
635 SetLastError( ERROR_FILENAME_EXCED_RANGE );
638 return WaitNamedPipeW( buffer, nTimeOut );
642 /***********************************************************************
643 * WaitNamedPipeW (KERNEL32.@)
645 BOOL WINAPI WaitNamedPipeW (LPCWSTR name, DWORD nTimeOut)
647 DWORD len = name ? strlenW(name) : 0;
653 SetLastError( ERROR_FILENAME_EXCED_RANGE );
657 TRACE("%s 0x%08lx\n",debugstr_w(name),nTimeOut);
659 memset(&ov,0,sizeof ov);
660 ov.hEvent = CreateEventA( NULL, 0, 0, NULL );
664 SERVER_START_REQ( wait_named_pipe )
666 req->timeout = nTimeOut;
667 req->overlapped = &ov;
668 req->func = SYNC_CompletePipeOverlapped;
669 wine_server_add_data( req, name, len * sizeof(WCHAR) );
670 ret = !wine_server_call_err( req );
676 if (WAIT_OBJECT_0==WaitForSingleObject(ov.hEvent,INFINITE))
678 SetLastError(ov.Internal);
679 ret = (ov.Internal==STATUS_SUCCESS);
682 CloseHandle(ov.hEvent);
687 /***********************************************************************
688 * SYNC_ConnectNamedPipe (Internal)
690 static BOOL SYNC_ConnectNamedPipe(HANDLE hPipe, LPOVERLAPPED overlapped)
697 overlapped->Internal = STATUS_PENDING;
699 SERVER_START_REQ( connect_named_pipe )
702 req->overlapped = overlapped;
703 req->func = SYNC_CompletePipeOverlapped;
704 ret = !wine_server_call_err( req );
711 /***********************************************************************
712 * ConnectNamedPipe (KERNEL32.@)
714 BOOL WINAPI ConnectNamedPipe(HANDLE hPipe, LPOVERLAPPED overlapped)
719 TRACE("(%p,%p)\n",hPipe, overlapped);
722 return SYNC_ConnectNamedPipe(hPipe,overlapped);
724 memset(&ov,0,sizeof ov);
725 ov.hEvent = CreateEventA(NULL,0,0,NULL);
729 ret=SYNC_ConnectNamedPipe(hPipe, &ov);
732 if (WAIT_OBJECT_0==WaitForSingleObject(ov.hEvent,INFINITE))
734 SetLastError(ov.Internal);
735 ret = (ov.Internal==STATUS_SUCCESS);
739 CloseHandle(ov.hEvent);
744 /***********************************************************************
745 * DisconnectNamedPipe (KERNEL32.@)
747 BOOL WINAPI DisconnectNamedPipe(HANDLE hPipe)
751 TRACE("(%p)\n",hPipe);
753 SERVER_START_REQ( disconnect_named_pipe )
756 ret = !wine_server_call_err( req );
757 if (ret && reply->fd != -1) close( reply->fd );
764 /***********************************************************************
765 * TransactNamedPipe (KERNEL32.@)
767 BOOL WINAPI TransactNamedPipe(
768 HANDLE hPipe, LPVOID lpInput, DWORD dwInputSize, LPVOID lpOutput,
769 DWORD dwOutputSize, LPDWORD lpBytesRead, LPOVERLAPPED lpOverlapped)
771 FIXME("%p %p %ld %p %ld %p %p\n",
772 hPipe, lpInput, dwInputSize, lpOutput,
773 dwOutputSize, lpBytesRead, lpOverlapped);
779 /***********************************************************************
780 * GetNamedPipeInfo (KERNEL32.@)
782 BOOL WINAPI GetNamedPipeInfo(
783 HANDLE hNamedPipe, LPDWORD lpFlags, LPDWORD lpOutputBufferSize,
784 LPDWORD lpInputBufferSize, LPDWORD lpMaxInstances)
788 TRACE("%p %p %p %p %p\n", hNamedPipe, lpFlags,
789 lpOutputBufferSize, lpInputBufferSize, lpMaxInstances);
791 SERVER_START_REQ( get_named_pipe_info )
793 req->handle = hNamedPipe;
794 ret = !wine_server_call_err( req );
795 if(lpFlags) *lpFlags = reply->flags;
796 if(lpOutputBufferSize) *lpOutputBufferSize = reply->outsize;
797 if(lpInputBufferSize) *lpInputBufferSize = reply->outsize;
798 if(lpMaxInstances) *lpMaxInstances = reply->maxinstances;
805 /***********************************************************************
806 * GetNamedPipeHandleStateA (KERNEL32.@)
808 BOOL WINAPI GetNamedPipeHandleStateA(
809 HANDLE hNamedPipe, LPDWORD lpState, LPDWORD lpCurInstances,
810 LPDWORD lpMaxCollectionCount, LPDWORD lpCollectDataTimeout,
811 LPSTR lpUsername, DWORD nUsernameMaxSize)
813 FIXME("%p %p %p %p %p %p %ld\n",
814 hNamedPipe, lpState, lpCurInstances,
815 lpMaxCollectionCount, lpCollectDataTimeout,
816 lpUsername, nUsernameMaxSize);
821 /***********************************************************************
822 * GetNamedPipeHandleStateW (KERNEL32.@)
824 BOOL WINAPI GetNamedPipeHandleStateW(
825 HANDLE hNamedPipe, LPDWORD lpState, LPDWORD lpCurInstances,
826 LPDWORD lpMaxCollectionCount, LPDWORD lpCollectDataTimeout,
827 LPWSTR lpUsername, DWORD nUsernameMaxSize)
829 FIXME("%p %p %p %p %p %p %ld\n",
830 hNamedPipe, lpState, lpCurInstances,
831 lpMaxCollectionCount, lpCollectDataTimeout,
832 lpUsername, nUsernameMaxSize);
837 /***********************************************************************
838 * SetNamedPipeHandleState (KERNEL32.@)
840 BOOL WINAPI SetNamedPipeHandleState(
841 HANDLE hNamedPipe, LPDWORD lpMode, LPDWORD lpMaxCollectionCount,
842 LPDWORD lpCollectDataTimeout)
844 FIXME("%p %p %p %p\n",
845 hNamedPipe, lpMode, lpMaxCollectionCount, lpCollectDataTimeout);
849 /***********************************************************************
850 * CallNamedPipeA (KERNEL32.@)
852 BOOL WINAPI CallNamedPipeA(
853 LPCSTR lpNamedPipeName, LPVOID lpInput, DWORD lpInputSize,
854 LPVOID lpOutput, DWORD lpOutputSize,
855 LPDWORD lpBytesRead, DWORD nTimeout)
857 FIXME("%s %p %ld %p %ld %p %ld\n",
858 debugstr_a(lpNamedPipeName), lpInput, lpInputSize,
859 lpOutput, lpOutputSize, lpBytesRead, nTimeout);
863 /***********************************************************************
864 * CallNamedPipeW (KERNEL32.@)
866 BOOL WINAPI CallNamedPipeW(
867 LPCWSTR lpNamedPipeName, LPVOID lpInput, DWORD lpInputSize,
868 LPVOID lpOutput, DWORD lpOutputSize,
869 LPDWORD lpBytesRead, DWORD nTimeout)
871 FIXME("%s %p %ld %p %ld %p %ld\n",
872 debugstr_w(lpNamedPipeName), lpInput, lpInputSize,
873 lpOutput, lpOutputSize, lpBytesRead, nTimeout);