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tdegames/libksirtet/lib/internal.cpp

279 lines
7.4 KiB

#include "internal.h"
#include "internal.moc"
#include <tqptrlist.h>
#include <klocale.h>
#include "mp_interface.h"
#define DATA_ERROR(i) { dataError(i); return; }
#define READ_ERROR(i) { readError(i); return; }
#define WRITE_ERROR(i) { writeError(i); return; }
#define BROKE_ERROR(i) { brokeError(i); return; }
#define LAG_ERROR { lagError(); return; }
//-----------------------------------------------------------------------------
void Local::dataError(uint i)
{
qWarning("MP : Invalid data from board #%i", i);
}
void Local::readData(bool inverse)
{
// read data from local boards
for (uint i=0; i<ios.size(); i++) {
boards[i].ptr->dataOut(ios[i]->writing);
if (inverse) ios[i]->writingToReading();
}
}
void Local::writeData(bool inverse)
{
// write data to local boards
for (uint i=0; i<ios.size(); i++) {
if (inverse) ios[i]->writingToReading();
boards[i].ptr->dataIn(ios[i]->reading);
if ( !ios[i]->reading.readOk() ) DATA_ERROR(i);
}
}
void Local::treatData()
{
readData(TRUE);
interface->treatData();
// check reading stream
for (uint i=0; i<ios.size(); i++)
if ( !ios[i]->reading.readOk() ) DATA_ERROR(i);
writeData(TRUE);
}
//-----------------------------------------------------------------------------
Server::Server(uint _interval)
: interval(_interval)
{
timer.start(interval);
}
void Server::congestion()
{
qWarning("MP : congestion occurred !!");
}
void Server::serverTimeout()
{
ctimer.start(2*interval, TRUE);
timeout();
}
//-----------------------------------------------------------------------------
Network::Network(MPInterface *_interface,
TQValueList<MPInterface::Data> &_boards,
const TQPtrList<RemoteHostData> &rhd)
: Local(_interface, _boards)
{
RemoteData rd;
TQPtrListIterator<RemoteHostData> it(rhd);
for (; it.current(); ++it) {
rd.socket = it.current()->socket;
rd.socket->notifier()->setEnabled(TRUE);
connect(rd.socket->notifier(), TQT_SIGNAL(activated(int)),
TQT_SLOT(notifier(int)));
uint nb = it.current()->bds.count();
Q_ASSERT( nb>=1 );
rd.array = new BufferArray(nb);
for (uint k=0; k<it.current()->bds.count(); k++)
rd.names += it.current()->bds[k].name;
remotes += rd;
}
}
Network::~Network()
{
for (uint i=0; i<remotes.count(); i++) {
delete remotes[i].socket;
delete remotes[i].array;
}
}
uint Network::nbPlayers() const
{
uint nb = Local::nbPlayers();
for (uint i=0; i<remotes.count(); i++) nb += remotes[i].array->size();
return nb;
}
TQString Network::playerName(uint i) const
{
uint l = Local::nbPlayers();
if ( i<l ) return Local::playerName(i);
for (uint k=0; k<remotes.count(); k++) {
uint ll = remotes[k].array->size();
if ( i<(l+ll) ) return remotes[k].names[i-l];
l += ll;
}
return TQString::null; // dummy
}
IOBuffer *Network::ioBuffer(uint i) const
{
if ( i<Local::nbPlayers() ) return Local::ioBuffer(i);
i -= Local::nbPlayers();
for (uint k=0; k<remotes.count(); k++) {
if ( i<remotes[k].array->size() ) return (*remotes[k].array)[i];
i -= remotes[k].array->size();
}
Q_ASSERT(FALSE);
return 0;
}
void Network::readError(uint i)
{
disconnectHost(i, i18n("Unable to read socket"));
}
void Network::writeError(uint i)
{
disconnectHost(i, i18n("Unable to write to socket"));
}
void Network::brokeError(uint i)
{
disconnectHost(i, i18n("Link broken"));
}
void Network::disconnectHost(uint i, const TQString &msg)
{
delete remotes[i].socket;
delete remotes[i].array;
remotes.remove(remotes.at(i));
interface->hostDisconnected(i, msg);
}
//-----------------------------------------------------------------------------
LocalServer::LocalServer(MPInterface *_interface,
TQValueList<MPInterface::Data> &_boards,
uint _interval)
: Local(_interface, _boards), Server(_interval)
{
connect(&timer, TQT_SIGNAL(timeout()), TQT_SLOT(timeoutSlot()));
connect(&ctimer, TQT_SIGNAL(timeout()), TQT_SLOT(congestionTimeoutSlot()));
serverTimeout();
}
//-----------------------------------------------------------------------------
NetworkServer::NetworkServer(MPInterface *_interface,
TQValueList<MPInterface::Data> &_boards,
const TQPtrList<RemoteHostData> &rhd, uint _interval)
: Network(_interface, _boards, rhd), Server(_interval),
nbReceived(remotes.count())
{
connect(&timer, TQT_SIGNAL(timeout()), TQT_SLOT(timeoutSlot()));
connect(&ctimer, TQT_SIGNAL(timeout()), TQT_SLOT(congestionTimeoutSlot()));
// to catch unexpected data
for (uint i=0; i<remotes.count(); i++) remotes[i].received = TRUE;
nbReceived = remotes.count();
// let the client the time to create itself ...
// serverTimeout();
}
void NetworkServer::timeout()
{
if ( nbReceived<remotes.count() ) LAG_ERROR;
nbReceived = 0;
for (uint i=0; i<remotes.count(); i++) remotes[i].received = FALSE;
// send MF_ASK : asking for data from clients
for (uint i=0; i<remotes.count(); i++) {
remotes[i].socket->writingStream() << MF_Ask;
// debug("SERVER : send ask flag");
if ( !remotes[i].socket->write() ) WRITE_ERROR(i);
}
}
void NetworkServer::notifier(int fd)
{
uint i;
for (i=0; i<remotes.count(); i++)
if ( remotes[i].socket->fd()==fd ) break;
Q_ASSERT( i<remotes.count() );
if ( remotes[i].received ) READ_ERROR(i);
switch ( remotes[i].socket->read() ) {
case -1: READ_ERROR(i);
case 0: BROKE_ERROR(i);
}
remotes[i].received = TRUE;
nbReceived++;
ReadingStream &s = remotes[i].socket->readingStream();
// debug("SERVER : notifier + read (fd=%i i=%i size=%i)", fd, i,
// s.size());
s >> *remotes[i].array;
if ( !s.readOk() ) DATA_ERROR(i);
// all data from clients received
if ( nbReceived==remotes.count() ) treatData();
}
void NetworkServer::writeData(bool inverse)
{
Local::writeData(inverse);
for (uint i=0; i<remotes.count(); i++) {
WritingStream &s = remotes[i].socket->writingStream();
s << MF_Data;
s << *remotes[i].array;
s.writeRawBytes(globalStream()->buffer().data(),
globalStream()->size());
// debug("SERVER : write data (size= 1 + %i + %i=%i)",
// globalStream()->size(), s.size()-globalStream()->size()-1,
// s.size());
if ( !remotes[i].socket->write() ) WRITE_ERROR(i);
}
globalStream()->clear();
}
void NetworkServer::lagError()
{
for (uint i=0; i<remotes.count(); i++)
if ( !remotes[i].received )
disconnectHost(i, i18n("Client has not answered in time"));
}
//-----------------------------------------------------------------------------
void Client::notifier(int)
{
switch ( remotes[0].socket->read() ) {
case -1: READ_ERROR(0);
case 0: BROKE_ERROR(0);
}
ReadingStream &s = remotes[0].socket->readingStream();
MetaFlag mf;
s >> mf;
if ( !s.readOk() ) DATA_ERROR(0);
// debug("CLIENT : reading stream (size=%i flag=%i)", s.size(),
// (int)mf);
switch(mf) {
case MF_Ask:
// write data from local boards to server socket (cleaning
// of writing stream is done in write())
readData(FALSE);
remotes[0].socket->writingStream() << ios;
// debug("CLIENT : send ios (size=%i)",
// remotes[0].socket->writingStream().size());
if ( !remotes[0].socket->write() ) WRITE_ERROR(0);
break;
case MF_Data:
// read data from server to interface & local boards
// debug("CLIENT : before receive ios (at=%i)", s.device()->at());
s >> ios;
// debug("CLIENT : after receive ios (at=%i)", s.device()->at());
interface->dataFromServer(s);
// debug("CLIENT : after dataFromServer (at=%i)", s.device()->at());
if ( !s.readOk() ) DATA_ERROR(0);
writeData(FALSE);
break;
default: DATA_ERROR(0);
}
if ( !s.atEnd() ) qWarning("CLIENT : remaining data");
}