haiku/headers/private/app/PortQueue.h

//------------------------------------------------------------------------------
//	Copyright (c) 2001-2002, OpenBeOS
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//
//	File Name:		PortQueue.h
//	Author:			DarkWyrm <bpmagic@columbus.rr.com>
//	Description:	Facilitation class for reading and queueing messages from ports
//  
//------------------------------------------------------------------------------
#ifndef PORTQUEUE_H_
#define PORTQUEUE_H_

#include <OS.h>
#include <queue>

class PortMessage;

class PortQueue
{
public:
	PortQueue(const port_id &port);
	~PortQueue(void);
	bool IsInitialized(void) { return _init; }

	bool SetPort(const port_id &port);
	port_id GetPort(void) { return _port; }
	
	bool MessagesWaiting(void) { return !_q.empty(); }
	
	void GetMessagesFromPort(bool wait_for_messages=false);
	PortMessage *GetMessageFromQueue(void);

	void MakeEmpty(void);
	
private:
	std::queue<PortMessage*> _q;
	bool _init;
	port_id _port;
};

#endif