www.pudn.com > ThreadLibrary.zip > AutoEvent.h

/** 
 *	@file 
 */ 
#pragma once 
#include "event.h" 
 
/** 
 *	Wrapper around a WIN32 auto event. 
 *	Provides an event or signal that automagically resets itself 
 *	 
 *	@author Peter Hancock 
 * 
 */ 
class AutoEvent : 
	public Event 
{ 
public: 
 
	/** 
	 *	Creates the auto event object. 
	 *	The destructor does not close the handle, the base class Event looks after this. 
	 *	@param eventName Name of the event can be used for interprocess communication 
	 *	@throw EventException Thrown when the event cannot be created. 
	 */ 
	AutoEvent(const char* eventName="anonymous") throw(EventException) 
	{ 
		handle = reinterpret_cast(::CreateEvent(NULL, false, false, eventName)); 
		if(handle == INVALID_HANDLE_VALUE) 
			throw EventException; 
	} 
 
	/** 
	 *	Signal the event to all threads waiting, and then reset the signal once they've all been informed 
	 */ 
	void signal() 
	{ 
		::PulseEvent(handle); 
	} 
};