CWE-ou-minkata/Sources/Plasma/NucleusLib/pnSimpleNet/pnSimpleNet.h

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.

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along with this program. If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

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*==LICENSE==*/
/*****************************************************************************
*
*   $/Plasma20/Sources/Plasma/NucleusLib/pnSimpleNet/pnSimpleNet.h
*   
***/

#ifndef PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNSIMPLENET_PNSIMPLENET_H
#define PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNSIMPLENET_PNSIMPLENET_H


#include "pnUtils/pnUtils.h"
#include "pnProduct/pnProduct.h"
#include "pnNetBase/pnNetBase.h"
#include "pnAsyncCore/pnAsyncCore.h"

/*****************************************************************************
*
*   SimpleNet:
*     - TCP only, Nagle buffered only.
*     - Asynchronous callbacks only.
*     - Not encrypted, not compressed, no transaction support.
*     - Good for trivial networked applications only. Examples include:
*         - CSR client automation by CSR tools.
*         - Bob and I (eap) talked about 3dsmax automating
*           the client for the purpose of reloading reexported
*           assets.  With SimpleNet, the client could be running
*           on a separate machine than Max.
*
***/

// Because newer clients must remain compatible with older servers,
// these values may never change.
enum ESimpleNetChannel {
	kSimpleNetChannelNil	= 0,
	kSimpleNetChannelCsr	= 1,
	kSimpleNetChannelMax	= 2,
	
	kMaxSimpleNetChannels
};
COMPILER_ASSERT_HEADER(ESimpleNetChannel, kMaxSimpleNetChannels <= 0xff);


//============================================================================
// BEGIN PACKED DATA STRUCTURES
//============================================================================
#include <PshPack1.h>

//============================================================================
// Connect packet

struct SimpleNet_ConnData {
	unsigned	channelId;
};
struct SimpleNet_Connect {
	AsyncSocketConnectPacket	hdr;
	SimpleNet_ConnData			data;
};

//============================================================================
// Message header

struct SimpleNet_MsgHeader {
private:
	dword	channelId;
public:
	dword	messageId;
	dword	messageBytes;
	
	SimpleNet_MsgHeader (dword channelId, dword messageId)
	: channelId(channelId)
	, messageId(messageId)
	#ifdef HS_DEBUGGING
	, messageBytes((dword)-1)
	#endif
	{ }
};


/*****************************************************************************
*
*   Simple Network API
*
***/

struct SimpleNetConn;

void SimpleNetInitialize ();
void SimpleNetShutdown ();

void SimpleNetConnIncRef (SimpleNetConn * conn);
void SimpleNetConnDecRef (SimpleNetConn * conn);

typedef bool (*FSimpleNetOnMsg) (		// return false to disconnect socket
	SimpleNetConn *			conn,
	SimpleNet_MsgHeader *	msg
);
typedef void (*FSimpleNetOnError) (
	SimpleNetConn *	conn,
	ENetError		error
);
typedef void (*FSimpleNetOnConnect) (
	void *			param,
	SimpleNetConn *	conn,
	ENetError		result
);
typedef bool (*FSimpleNetQueryAccept) (	// return true to accept incoming connection
	void *				param,
	unsigned			channel,
	SimpleNetConn *		conn,
	const NetAddress &	addr
);

void SimpleNetCreateChannel (
	unsigned			channel,
	FSimpleNetOnMsg		onMsg,
	FSimpleNetOnError	onError
);
void SimpleNetDestroyChannel (
	unsigned			channel
);

bool SimpleNetStartListening (
	FSimpleNetQueryAccept	queryAccept,
	void *					param
);
void SimpleNetStopListening ();

void SimpleNetStartConnecting (
	unsigned			channel,
	const wchar			addr[],
	FSimpleNetOnConnect	onConnect,
	void *				param
);
void SimpleNetDisconnect (
	SimpleNetConn *		conn
);
void SimpleNetSend (
	SimpleNetConn *			conn,
	SimpleNet_MsgHeader *	msg
);

#endif // PLASMA20_SOURCES_PLASMA_NUCLEUSLIB_PNSIMPLENET_PNSIMPLENET_H