Source code of Windows XP (NT5)
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85 lines
2.1 KiB

#ifndef __TP_WRAP_
#define __TP_WRAP_
#ifdef DBG
#undef NDEBUG
#endif
#include <assert.h>
#include <windows.h>
#include <locks.h>
class Dispatcher;
class EventHandler : public LIST_ENTRY
{
protected:
LONG refCount_;
LONG scheduledClose_; // logicaly bool
HANDLE handlerID_;
LONG once_;
Dispatcher * dispatcher_;
friend class Dispatcher;
public:
enum HANDLER_TYPE { TIMER, WAIT} type_;
HANDLER_TYPE handlerType(){ return type_;}
virtual LONG AddRef(void);
virtual LONG Release(void);
virtual void close(void);
virtual HANDLE getHandle(void);
virtual int handleTimeout(void);
virtual int handleEvent(void);
virtual DWORD getTimeOut(void);
Dispatcher * dispatcher(void);
void dispatcher(Dispatcher* r);
protected:
EventHandler(void);
virtual ~EventHandler(void)=0;
};
#ifdef WINVER
#if (WINVER>=0x0500)
class Dispatcher{
static LIST_ENTRY handlerListHead_;
static volatile LONG registeredHandlers_;
static bool startShutDown_;
static CriticalSection handlerListLock_;
public:
static int registerHandler(EventHandler& eh, int flags = WT_EXECUTELONGFUNCTION) ;
static int registerHandlerOnce(EventHandler& eh, int flags = WT_EXECUTELONGFUNCTION) ;
static int removeHandler(EventHandler& handler);
static int scheduleTimer(EventHandler& eh, DWORD first, DWORD repeat=0, DWORD mode = WT_EXECUTELONGFUNCTION);
static int cancelTimer(EventHandler& handler);
static int changeTimer(EventHandler& handler, DWORD first, DWORD repeat=0);
static int close();
static int open();
private:
static void insertTail(EventHandler *entry);
static void removeEntry(EventHandler *entry);
static void closeHandler(EventHandler* entry);
static void openHandler(EventHandler* entry);
static DWORD WINAPI DeleteTimer( LPVOID lpParameter);
static DWORD WINAPI DeleteNotification( LPVOID lpParameter);
static BOOL PostDeleteNotification(EventHandler& ev);
static BOOL PostDeleteTimer(EventHandler& ev);
static VOID CALLBACK HandleWaitOrTimerCallback( PVOID lpParameter, BOOLEAN TimerOrWaitFired );
static void CALLBACK TimerCallback(void* lpParameter, BOOLEAN TimerOrWaitFired);
};
#endif
#endif
#endif