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/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @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 "packet.h"
#include "../../safeguards.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 resources... */
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::SendGRFIdentifier(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::ReceiveGRFIdentifier(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 */
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