Files @ r7377:722cd70012ed
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Location: cpp/openttd-patchpack/source/src/network/core/core.cpp

rubidium
(svn r10746) -Codechange: add a generic superclass for almost all pool items so we do not have to duplicate code for each of the pool item classes and use it for the station and roadstop classes.
/* $Id$ */

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

#ifdef ENABLE_NETWORK

#include "../../stdafx.h"
#include "../../debug.h"
#include "os_abstraction.h"
#include "core.h"
#include "packet.h"

#ifdef __MORPHOS__
/* the library base is required here */
struct Library *SocketBase = NULL;
#endif

/**
 * Initializes the network core (as that is needed for some platforms
 * @return true if the core has been initialized, false otherwise
 */
bool NetworkCoreInitialize()
{
#if defined(__MORPHOS__) || defined(__AMIGA__)
	/*
	 *  IMPORTANT NOTE: SocketBase needs to be initialized before we use _any_
	 *  network related function, else: crash.
	 */
	DEBUG(net, 3, "[core] loading bsd socket library");
	SocketBase = OpenLibrary("bsdsocket.library", 4);
	if (SocketBase == NULL) {
		DEBUG(net, 0, "[core] can't open bsdsocket.library version 4, network unavailable");
		return false;
	}

#if defined(__AMIGA__)
	/* for usleep() implementation (only required for legacy AmigaOS builds) */
	TimerPort = CreateMsgPort();
	if (TimerPort != NULL) {
		TimerRequest = (struct timerequest*)CreateIORequest(TimerPort, sizeof(struct timerequest);
		if (TimerRequest != NULL) {
			if (OpenDevice("timer.device", UNIT_MICROHZ, (struct IORequest*)TimerRequest, 0) == 0) {
				TimerBase = TimerRequest->tr_node.io_Device;
				if (TimerBase == NULL) {
					/* free ressources... */
					DEBUG(net, 0, "[core] can't initialize timer, network unavailable");
					return false;
				}
			}
		}
	}
#endif // __AMIGA__
#endif // __MORPHOS__ / __AMIGA__

/* Let's load the network in windows */
#ifdef WIN32
	{
		WSADATA wsa;
		DEBUG(net, 3, "[core] loading windows socket library");
		if (WSAStartup(MAKEWORD(2, 0), &wsa) != 0) {
			DEBUG(net, 0, "[core] WSAStartup failed, network unavailable");
			return false;
		}
	}
#endif /* WIN32 */

	return true;
}

/**
 * Shuts down the network core (as that is needed for some platforms
 */
void NetworkCoreShutdown()
{
#if defined(__MORPHOS__) || defined(__AMIGA__)
	/* free allocated resources */
#if defined(__AMIGA__)
	if (TimerBase    != NULL) CloseDevice((struct IORequest*)TimerRequest); // XXX This smells wrong
	if (TimerRequest != NULL) DeleteIORequest(TimerRequest);
	if (TimerPort    != NULL) DeleteMsgPort(TimerPort);
#endif

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

#if defined(WIN32)
	WSACleanup();
#endif
}


/**
 * Serializes the GRFIdentifier (GRF ID and MD5 checksum) to the packet
 * @param p   the packet to write the data to
 * @param grf the GRFIdentifier to serialize
 */
void NetworkSocketHandler::Send_GRFIdentifier(Packet *p, const GRFIdentifier *grf)
{
	uint j;
	p->Send_uint32(grf->grfid);
	for (j = 0; j < sizeof(grf->md5sum); j++) {
		p->Send_uint8 (grf->md5sum[j]);
	}
}

/**
 * Deserializes the GRFIdentifier (GRF ID and MD5 checksum) from the packet
 * @param p   the packet to read the data from
 * @param grf the GRFIdentifier to deserialize
 */
void NetworkSocketHandler::Recv_GRFIdentifier(Packet *p, GRFIdentifier *grf)
{
	uint j;
	grf->grfid = p->Recv_uint32();
	for (j = 0; j < sizeof(grf->md5sum); j++) {
		grf->md5sum[j] = p->Recv_uint8();
	}
}

#endif /* ENABLE_NETWORK */