173 lines
4.9 KiB
C
173 lines
4.9 KiB
C
/*
|
|
* Win32 events
|
|
*
|
|
* Copyright 1998 Alexandre Julliard
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <string.h>
|
|
#include "winerror.h"
|
|
#include "heap.h"
|
|
#include "syslevel.h"
|
|
#include "server/request.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;
|
|
struct create_event_reply reply;
|
|
int len = name ? strlen(name) + 1 : 0;
|
|
|
|
req.manual_reset = manual_reset;
|
|
req.initial_state = initial_state;
|
|
req.inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
|
|
CLIENT_SendRequest( REQ_CREATE_EVENT, -1, 2, &req, sizeof(req), name, len );
|
|
SetLastError(0);
|
|
CLIENT_WaitSimpleReply( &reply, sizeof(reply), NULL );
|
|
if (reply.handle == -1) return 0;
|
|
return reply.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;
|
|
struct open_event_reply reply;
|
|
int len = name ? strlen(name) + 1 : 0;
|
|
|
|
req.access = access;
|
|
req.inherit = inherit;
|
|
CLIENT_SendRequest( REQ_OPEN_EVENT, -1, 2, &req, sizeof(req), name, len );
|
|
CLIENT_WaitSimpleReply( &reply, sizeof(reply), NULL );
|
|
if (reply.handle == -1) return 0; /* must return 0 on failure, not -1 */
|
|
return (HANDLE)reply.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;
|
|
|
|
req.handle = handle;
|
|
req.op = op;
|
|
CLIENT_SendRequest( REQ_EVENT_OP, -1, 1, &req, sizeof(req) );
|
|
return !CLIENT_WaitReply( NULL, NULL, 0 );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* 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 );
|
|
}
|
|
|