/*
	ZNetPacket.hpp
	Author: Patrick Baggett	<ptbaggett@762studios.com>
	Created: 6/4/2013

	Purpose:

	ZNet packet class, represents a packet

	License:
	
	Copyright 2013, 762 Studios
*/

#pragma once

#ifndef _ZNETPACKET_HPP
#define _ZNETPACKET_HPP

#include <pstdint.h>

/*
	ZNetPacket defines a logical packet that is to be sent or has been received. The data is appended
	at the end of the structure, so getting the address requires pointer manipulation. It does
	not represent the wire format of what is sent, since packets may be merged.
*/

struct ZNetPacket
{
	uint32_t dataSize;		//< Size of the packet (logically)
	uint32_t flags;			//< The flags. ZNET_TRANSIENT, ZNET_RELIABLE, etc.
	int32_t refCount;		//< Reference count

	uint8_t* GetData() { return (uint8_t*) ((uintptr_t)this + sizeof(ZNetPacket)); }
	void AddReference() { refCount++; }
	void ReleaseReference()
	{
		refCount--;
		if(refCount == 0)
			free(this);
	}
};

#endif