| /* |
| * Win32 events |
| * |
| * Copyright 1998 Alexandre Julliard |
| */ |
| |
| #include <assert.h> |
| #include <string.h> |
| #include "winerror.h" |
| #include "heap.h" |
| #include "syslevel.h" |
| #include "server.h" |
| |
| |
| /*********************************************************************** |
| * CreateEvent32A (KERNEL32.156) |
| */ |
| HANDLE WINAPI CreateEventA( SECURITY_ATTRIBUTES *sa, BOOL manual_reset, |
| BOOL initial_state, LPCSTR name ) |
| { |
| struct create_event_request *req = get_req_buffer(); |
| |
| req->manual_reset = manual_reset; |
| req->initial_state = initial_state; |
| req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle); |
| lstrcpynA( req->name, name ? name : "", server_remaining(req->name) ); |
| SetLastError(0); |
| server_call( REQ_CREATE_EVENT ); |
| if (req->handle == -1) return 0; |
| return req->handle; |
| } |
| |
| |
| /*********************************************************************** |
| * CreateEvent32W (KERNEL32.157) |
| */ |
| HANDLE WINAPI CreateEventW( SECURITY_ATTRIBUTES *sa, BOOL manual_reset, |
| BOOL initial_state, LPCWSTR name ) |
| { |
| LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name ); |
| HANDLE ret = CreateEventA( sa, manual_reset, initial_state, nameA ); |
| if (nameA) HeapFree( GetProcessHeap(), 0, nameA ); |
| return ret; |
| } |
| |
| /*********************************************************************** |
| * WIN16_CreateEvent (KERNEL.457) |
| */ |
| HANDLE WINAPI WIN16_CreateEvent( BOOL manual_reset, BOOL initial_state ) |
| { |
| return CreateEventA( NULL, manual_reset, initial_state, NULL ); |
| } |
| |
| |
| /*********************************************************************** |
| * OpenEvent32A (KERNEL32.536) |
| */ |
| HANDLE WINAPI OpenEventA( DWORD access, BOOL inherit, LPCSTR name ) |
| { |
| struct open_event_request *req = get_req_buffer(); |
| |
| req->access = access; |
| req->inherit = inherit; |
| lstrcpynA( req->name, name ? name : "", server_remaining(req->name) ); |
| server_call( REQ_OPEN_EVENT ); |
| if (req->handle == -1) return 0; /* must return 0 on failure, not -1 */ |
| return req->handle; |
| } |
| |
| |
| /*********************************************************************** |
| * OpenEvent32W (KERNEL32.537) |
| */ |
| HANDLE WINAPI OpenEventW( DWORD access, BOOL inherit, LPCWSTR name ) |
| { |
| LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name ); |
| HANDLE ret = OpenEventA( access, inherit, nameA ); |
| if (nameA) HeapFree( GetProcessHeap(), 0, nameA ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * EVENT_Operation |
| * |
| * Execute an event operation (set,reset,pulse). |
| */ |
| static BOOL EVENT_Operation( HANDLE handle, enum event_op op ) |
| { |
| struct event_op_request *req = get_req_buffer(); |
| req->handle = handle; |
| req->op = op; |
| return !server_call( REQ_EVENT_OP ); |
| } |
| |
| |
| /*********************************************************************** |
| * 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 ); |
| } |
| |