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/* $Id$ */

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/**

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 * @file core.cpp Functions used to initialize/shut down the core network

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 */

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#ifdef ENABLE_NETWORK

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#include "../../stdafx.h"

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#include "../../debug.h"

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#include "os_abstraction.h"

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#include "core.h"

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#include "packet.h"

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#ifdef __MORPHOS__

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/* the library base is required here */

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struct Library *SocketBase = NULL;

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#endif

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/**

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 * Initializes the network core (as that is needed for some platforms

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 * @return true if the core has been initialized, false otherwise

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 */

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{

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#if defined(__MORPHOS__) || defined(__AMIGA__)

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	/*

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	 *  IMPORTANT NOTE: SocketBase needs to be initialized before we use _any_

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	 *  network related function, else: crash.

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	 */

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	DEBUG(net, 3, "[core] loading bsd socket library");

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	SocketBase = OpenLibrary("bsdsocket.library", 4);

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	if (SocketBase == NULL) {

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		DEBUG(net, 0, "[core] can't open bsdsocket.library version 4, network unavailable");

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		return false;

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	}

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#if defined(__AMIGA__)

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	/* for usleep() implementation (only required for legacy AmigaOS builds) */

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	TimerPort = CreateMsgPort();

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	if (TimerPort != NULL) {

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		TimerRequest = (struct timerequest*)CreateIORequest(TimerPort, sizeof(struct timerequest);

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		if (TimerRequest != NULL) {

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			if (OpenDevice("timer.device", UNIT_MICROHZ, (struct IORequest*)TimerRequest, 0) == 0) {

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				TimerBase = TimerRequest->tr_node.io_Device;

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				if (TimerBase == NULL) {

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					/* free ressources... */

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					DEBUG(net, 0, "[core] can't initialize timer, network unavailable");

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					return false;

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				}

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			}

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		}

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	}

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#endif // __AMIGA__

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#endif // __MORPHOS__ / __AMIGA__

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/* Let's load the network in windows */

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#ifdef WIN32

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	{

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		WSADATA wsa;

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		DEBUG(net, 3, "[core] loading windows socket library");

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		if (WSAStartup(MAKEWORD(2, 0), &wsa) != 0) {

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			DEBUG(net, 0, "[core] WSAStartup failed, network unavailable");

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			return false;

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		}

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	}

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#endif /* WIN32 */

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	return true;

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}

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/**

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 * Shuts down the network core (as that is needed for some platforms

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 */

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{

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#if defined(__MORPHOS__) || defined(__AMIGA__)

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	/* free allocated resources */

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#if defined(__AMIGA__)

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	if (TimerBase    != NULL) CloseDevice((struct IORequest*)TimerRequest); // XXX This smells wrong

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	if (TimerRequest != NULL) DeleteIORequest(TimerRequest);

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	if (TimerPort    != NULL) DeleteMsgPort(TimerPort);

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#endif

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	if (SocketBase != NULL) CloseLibrary(SocketBase);

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#endif

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#if defined(WIN32)

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	WSACleanup();

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#endif

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}

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/**

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 * Serializes the GRFIdentifier (GRF ID and MD5 checksum) to the packet

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 * @param p   the packet to write the data to

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 * @param grf the GRFIdentifier to serialize

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 */

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void NetworkSocketHandler::Send_GRFIdentifier(Packet *p, const GRFIdentifier *grf)

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{

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	uint j;

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	p->Send_uint32(grf->grfid);

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	for (j = 0; j < sizeof(grf->md5sum); j++) {

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		p->Send_uint8 (grf->md5sum[j]);

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	}

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}

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/**

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 * Deserializes the GRFIdentifier (GRF ID and MD5 checksum) from the packet

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 * @param p   the packet to read the data from

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 * @param grf the GRFIdentifier to deserialize

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 */

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void NetworkSocketHandler::Recv_GRFIdentifier(Packet *p, GRFIdentifier *grf)

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{

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	uint j;

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	grf->grfid = p->Recv_uint32();

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	for (j = 0; j < sizeof(grf->md5sum); j++) {

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		grf->md5sum[j] = p->Recv_uint8();

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	}

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}

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#endif /* ENABLE_NETWORK */