/* * Kernel synchronization objects * * Copyright 1998 Alexandre Julliard */ #include #include "winerror.h" #include "winnls.h" #include "wine/unicode.h" #include "syslevel.h" #include "server.h" #include "debugtools.h" DEFAULT_DEBUG_CHANNEL(win32); /* * Events */ /*********************************************************************** * CreateEventA (KERNEL32.156) */ HANDLE WINAPI CreateEventA( SECURITY_ATTRIBUTES *sa, BOOL manual_reset, BOOL initial_state, LPCSTR name ) { HANDLE ret; DWORD len = name ? MultiByteToWideChar( CP_ACP, 0, name, strlen(name), NULL, 0 ) : 0; if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct create_event_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->manual_reset = manual_reset; req->initial_state = initial_state; req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle); if (len) MultiByteToWideChar( CP_ACP, 0, name, strlen(name), server_data_ptr(req), len ); SetLastError(0); server_call( REQ_CREATE_EVENT ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * CreateEventW (KERNEL32.157) */ HANDLE WINAPI CreateEventW( SECURITY_ATTRIBUTES *sa, BOOL manual_reset, BOOL initial_state, LPCWSTR name ) { HANDLE ret; DWORD len = name ? strlenW(name) : 0; if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct create_event_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->manual_reset = manual_reset; req->initial_state = initial_state; req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle); memcpy( server_data_ptr(req), name, len * sizeof(WCHAR) ); SetLastError(0); server_call( REQ_CREATE_EVENT ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * WIN16_CreateEvent (KERNEL.457) */ HANDLE WINAPI WIN16_CreateEvent( BOOL manual_reset, BOOL initial_state ) { return CreateEventA( NULL, manual_reset, initial_state, NULL ); } /*********************************************************************** * OpenEventA (KERNEL32.536) */ HANDLE WINAPI OpenEventA( DWORD access, BOOL inherit, LPCSTR name ) { HANDLE ret; DWORD len = name ? MultiByteToWideChar( CP_ACP, 0, name, strlen(name), NULL, 0 ) : 0; if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct open_event_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->access = access; req->inherit = inherit; if (len) MultiByteToWideChar( CP_ACP, 0, name, strlen(name), server_data_ptr(req), len ); server_call( REQ_OPEN_EVENT ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * OpenEventW (KERNEL32.537) */ HANDLE WINAPI OpenEventW( DWORD access, BOOL inherit, LPCWSTR name ) { HANDLE ret; DWORD len = name ? strlenW(name) : 0; if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct open_event_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->access = access; req->inherit = inherit; memcpy( server_data_ptr(req), name, len * sizeof(WCHAR) ); server_call( REQ_OPEN_EVENT ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * EVENT_Operation * * Execute an event operation (set,reset,pulse). */ static BOOL EVENT_Operation( HANDLE handle, enum event_op op ) { BOOL ret; SERVER_START_REQ { struct event_op_request *req = server_alloc_req( sizeof(*req), 0 ); req->handle = handle; req->op = op; ret = !server_call( REQ_EVENT_OP ); } SERVER_END_REQ; return ret; } /*********************************************************************** * PulseEvent (KERNEL32.557) */ BOOL WINAPI PulseEvent( HANDLE handle ) { return EVENT_Operation( handle, PULSE_EVENT ); } /*********************************************************************** * SetEvent (KERNEL32.644) */ BOOL WINAPI SetEvent( HANDLE handle ) { return EVENT_Operation( handle, SET_EVENT ); } /*********************************************************************** * ResetEvent (KERNEL32.586) */ BOOL WINAPI ResetEvent( HANDLE handle ) { return EVENT_Operation( handle, RESET_EVENT ); } /*********************************************************************** * NOTE: The Win95 VWin32_Event routines given below are really low-level * routines implemented directly by VWin32. The user-mode libraries * implement Win32 synchronisation routines on top of these low-level * primitives. We do it the other way around here :-) */ /*********************************************************************** * VWin32_EventCreate (KERNEL.442) */ HANDLE WINAPI VWin32_EventCreate(VOID) { HANDLE hEvent = CreateEventA( NULL, FALSE, 0, NULL ); return ConvertToGlobalHandle( hEvent ); } /*********************************************************************** * VWin32_EventDestroy (KERNEL.443) */ VOID WINAPI VWin32_EventDestroy(HANDLE event) { CloseHandle( event ); } /*********************************************************************** * VWin32_EventWait (KERNEL.450) */ VOID WINAPI VWin32_EventWait(HANDLE event) { SYSLEVEL_ReleaseWin16Lock(); WaitForSingleObject( event, INFINITE ); SYSLEVEL_RestoreWin16Lock(); } /*********************************************************************** * VWin32_EventSet (KERNEL.451) */ VOID WINAPI VWin32_EventSet(HANDLE event) { SetEvent( event ); } /*********************************************************************** * CreateMutexA (KERNEL32.166) */ HANDLE WINAPI CreateMutexA( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCSTR name ) { HANDLE ret; DWORD len = name ? MultiByteToWideChar( CP_ACP, 0, name, strlen(name), NULL, 0 ) : 0; if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct create_mutex_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->owned = owner; req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle); if (len) MultiByteToWideChar( CP_ACP, 0, name, strlen(name), server_data_ptr(req), len ); SetLastError(0); server_call( REQ_CREATE_MUTEX ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * CreateMutexW (KERNEL32.167) */ HANDLE WINAPI CreateMutexW( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCWSTR name ) { HANDLE ret; DWORD len = name ? strlenW(name) : 0; if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct create_mutex_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->owned = owner; req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle); memcpy( server_data_ptr(req), name, len * sizeof(WCHAR) ); SetLastError(0); server_call( REQ_CREATE_MUTEX ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /* * Mutexes */ /*********************************************************************** * OpenMutexA (KERNEL32.541) */ HANDLE WINAPI OpenMutexA( DWORD access, BOOL inherit, LPCSTR name ) { HANDLE ret; DWORD len = name ? MultiByteToWideChar( CP_ACP, 0, name, strlen(name), NULL, 0 ) : 0; if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct open_mutex_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->access = access; req->inherit = inherit; if (len) MultiByteToWideChar( CP_ACP, 0, name, strlen(name), server_data_ptr(req), len ); server_call( REQ_OPEN_MUTEX ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * OpenMutexW (KERNEL32.542) */ HANDLE WINAPI OpenMutexW( DWORD access, BOOL inherit, LPCWSTR name ) { HANDLE ret; DWORD len = name ? strlenW(name) : 0; if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct open_mutex_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->access = access; req->inherit = inherit; memcpy( server_data_ptr(req), name, len * sizeof(WCHAR) ); server_call( REQ_OPEN_MUTEX ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * ReleaseMutex (KERNEL32.582) */ BOOL WINAPI ReleaseMutex( HANDLE handle ) { BOOL ret; SERVER_START_REQ { struct release_mutex_request *req = server_alloc_req( sizeof(*req), 0 ); req->handle = handle; ret = !server_call( REQ_RELEASE_MUTEX ); } SERVER_END_REQ; return ret; } /* * Semaphores */ /*********************************************************************** * CreateSemaphoreA (KERNEL32.174) */ HANDLE WINAPI CreateSemaphoreA( SECURITY_ATTRIBUTES *sa, LONG initial, LONG max, LPCSTR name ) { HANDLE ret; DWORD len = name ? MultiByteToWideChar( CP_ACP, 0, name, strlen(name), NULL, 0 ) : 0; /* Check parameters */ if ((max <= 0) || (initial < 0) || (initial > max)) { SetLastError( ERROR_INVALID_PARAMETER ); return 0; } if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct create_semaphore_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->initial = (unsigned int)initial; req->max = (unsigned int)max; req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle); if (len) MultiByteToWideChar( CP_ACP, 0, name, strlen(name), server_data_ptr(req), len ); SetLastError(0); server_call( REQ_CREATE_SEMAPHORE ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * CreateSemaphoreW (KERNEL32.175) */ HANDLE WINAPI CreateSemaphoreW( SECURITY_ATTRIBUTES *sa, LONG initial, LONG max, LPCWSTR name ) { HANDLE ret; DWORD len = name ? strlenW(name) : 0; /* Check parameters */ if ((max <= 0) || (initial < 0) || (initial > max)) { SetLastError( ERROR_INVALID_PARAMETER ); return 0; } if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct create_semaphore_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->initial = (unsigned int)initial; req->max = (unsigned int)max; req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle); memcpy( server_data_ptr(req), name, len * sizeof(WCHAR) ); SetLastError(0); server_call( REQ_CREATE_SEMAPHORE ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * OpenSemaphoreA (KERNEL32.545) */ HANDLE WINAPI OpenSemaphoreA( DWORD access, BOOL inherit, LPCSTR name ) { HANDLE ret; DWORD len = name ? MultiByteToWideChar( CP_ACP, 0, name, strlen(name), NULL, 0 ) : 0; if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct open_semaphore_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->access = access; req->inherit = inherit; if (len) MultiByteToWideChar( CP_ACP, 0, name, strlen(name), server_data_ptr(req), len ); server_call( REQ_OPEN_SEMAPHORE ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * OpenSemaphoreW (KERNEL32.546) */ HANDLE WINAPI OpenSemaphoreW( DWORD access, BOOL inherit, LPCWSTR name ) { HANDLE ret; DWORD len = name ? strlenW(name) : 0; if (len >= MAX_PATH) { SetLastError( ERROR_FILENAME_EXCED_RANGE ); return 0; } SERVER_START_REQ { struct open_semaphore_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) ); req->access = access; req->inherit = inherit; memcpy( server_data_ptr(req), name, len * sizeof(WCHAR) ); server_call( REQ_OPEN_SEMAPHORE ); ret = req->handle; } SERVER_END_REQ; if (ret == -1) ret = 0; /* must return 0 on failure, not -1 */ return ret; } /*********************************************************************** * ReleaseSemaphore (KERNEL32.583) */ BOOL WINAPI ReleaseSemaphore( HANDLE handle, LONG count, LONG *previous ) { NTSTATUS status = NtReleaseSemaphore( handle, count, previous ); if (status) SetLastError( RtlNtStatusToDosError(status) ); return !status; } /* * Pipes */ /*********************************************************************** * CreateNamedPipeA (KERNEL32.168) */ HANDLE WINAPI CreateNamedPipeA( LPCSTR name, DWORD dwOpenMode, DWORD dwPipeMode, DWORD nMaxInstances, DWORD nOutBufferSize, DWORD nInBufferSize, DWORD nDefaultTimeOut, LPSECURITY_ATTRIBUTES attr ) { FIXME("(Name=%s, OpenMode=%#08lx, dwPipeMode=%#08lx, MaxInst=%ld, OutBSize=%ld, InBuffSize=%ld, DefTimeOut=%ld, SecAttr=%p): stub\n", debugstr_a(name), dwOpenMode, dwPipeMode, nMaxInstances, nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr ); SetLastError (ERROR_UNKNOWN); return INVALID_HANDLE_VALUE; } /*********************************************************************** * CreateNamedPipeW (KERNEL32.169) */ HANDLE WINAPI CreateNamedPipeW( LPCWSTR name, DWORD dwOpenMode, DWORD dwPipeMode, DWORD nMaxInstances, DWORD nOutBufferSize, DWORD nInBufferSize, DWORD nDefaultTimeOut, LPSECURITY_ATTRIBUTES attr ) { FIXME("(Name=%s, OpenMode=%#08lx, dwPipeMode=%#08lx, MaxInst=%ld, OutBSize=%ld, InBuffSize=%ld, DefTimeOut=%ld, SecAttr=%p): stub\n", debugstr_w(name), dwOpenMode, dwPipeMode, nMaxInstances, nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr ); SetLastError (ERROR_UNKNOWN); return INVALID_HANDLE_VALUE; } /*********************************************************************** * PeekNamedPipe (KERNEL32.552) */ BOOL WINAPI PeekNamedPipe( HANDLE hPipe, LPVOID lpvBuffer, DWORD cbBuffer, LPDWORD lpcbRead, LPDWORD lpcbAvail, LPDWORD lpcbMessage ) { FIXME("(%08x, %p, %08lx, %p, %p, %p): stub\n", hPipe, lpvBuffer, cbBuffer, lpcbRead, lpcbAvail, lpcbMessage); SetLastError(ERROR_CALL_NOT_IMPLEMENTED); return FALSE; } /*********************************************************************** * WaitNamedPipeA (KERNEL32.@) */ BOOL WINAPI WaitNamedPipeA (LPCSTR lpNamedPipeName, DWORD nTimeOut) { FIXME("%s 0x%08lx\n",lpNamedPipeName,nTimeOut); SetLastError(ERROR_PIPE_NOT_CONNECTED); return FALSE; } /*********************************************************************** * WaitNamedPipeW (KERNEL32.@) */ BOOL WINAPI WaitNamedPipeW (LPCWSTR lpNamedPipeName, DWORD nTimeOut) { FIXME("%s 0x%08lx\n",debugstr_w(lpNamedPipeName),nTimeOut); SetLastError(ERROR_PIPE_NOT_CONNECTED); return FALSE; }