/*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2006-2007 Igor Ulyanov <iulyanov@gmail.com>
*
* This program 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 of the License
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include "tcpBase.h"
#include <QMessageBox>
#include <QList>
#include <QImage>
#include "hwconsts.h"
QList<TCPBase*> srvsList;
QPointer<QTcpServer> TCPBase::IPCServer(0);
TCPBase::~TCPBase()
{
}
TCPBase::TCPBase(bool demoMode) :
m_isDemoMode(demoMode),
IPCSocket(0)
{
if(!IPCServer) {
IPCServer = new QTcpServer(0);
IPCServer->setMaxPendingConnections(1);
if (!IPCServer->listen(QHostAddress::LocalHost)) {
QMessageBox::critical(0, tr("Error"),
tr("Unable to start the server: %1.")
.arg(IPCServer->errorString()));
exit(0); // FIXME - should be graceful exit here
}
}
ipc_port=IPCServer->serverPort();
}
void TCPBase::NewConnection()
{
if(IPCSocket) {
// connection should be already finished
return;
}
disconnect(IPCServer, SIGNAL(newConnection()), this, SLOT(NewConnection()));
IPCSocket = IPCServer->nextPendingConnection();
if(!IPCSocket) return;
connect(IPCSocket, SIGNAL(disconnected()), this, SLOT(ClientDisconnect()));
connect(IPCSocket, SIGNAL(readyRead()), this, SLOT(ClientRead()));
SendToClientFirst();
}
void TCPBase::RealStart()
{
connect(IPCServer, SIGNAL(newConnection()), this, SLOT(NewConnection()));
IPCSocket = 0;
QProcess * process;
process = new QProcess;
connect(process, SIGNAL(error(QProcess::ProcessError)), this, SLOT(StartProcessError(QProcess::ProcessError)));
QStringList arguments=setArguments();
// redirect everything written on stdout/stderr
if(isDevBuild)
process->setProcessChannelMode(QProcess::ForwardedChannels);
process->start(bindir->absolutePath() + "/hwengine", arguments);
}
void TCPBase::ClientDisconnect()
{
disconnect(IPCSocket, SIGNAL(readyRead()), this, SLOT(ClientRead()));
onClientDisconnect();
if(srvsList.size()==1) srvsList.pop_front();
emit isReadyNow();
IPCSocket->deleteLater();
deleteLater();
}
void TCPBase::ClientRead()
{
QByteArray readed=IPCSocket->readAll();
if(readed.isEmpty()) return;
readbuffer.append(readed);
onClientRead();
}
void TCPBase::StartProcessError(QProcess::ProcessError error)
{
QMessageBox::critical(0, tr("Error"),
tr("Unable to run engine: %1 (")
.arg(error) + bindir->absolutePath() + "/hwengine)");
}
void TCPBase::tcpServerReady()
{
disconnect(srvsList.takeFirst(), SIGNAL(isReadyNow()), this, SLOT(tcpServerReady()));
RealStart();
}
void TCPBase::Start()
{
if(srvsList.isEmpty()) {
srvsList.push_back(this);
} else {
connect(srvsList.back(), SIGNAL(isReadyNow()), this, SLOT(tcpServerReady()));
srvsList.push_back(this);
return;
}
RealStart();
}
void TCPBase::onClientRead()
{
}
void TCPBase::onClientDisconnect()
{
}
void TCPBase::SendToClientFirst()
{
}
void TCPBase::SendIPC(const QByteArray & buf)
{
if (buf.size() > MAXMSGCHARS) return;
quint8 len = buf.size();
RawSendIPC(QByteArray::fromRawData((char *)&len, 1) + buf);
}
void TCPBase::RawSendIPC(const QByteArray & buf)
{
if (!IPCSocket)
{
toSendBuf += buf;
} else
{
if (toSendBuf.size() > 0)
{
IPCSocket->write(toSendBuf);
if(m_isDemoMode) demo.append(toSendBuf);
toSendBuf.clear();
}
if(!buf.isEmpty()) {
IPCSocket->write(buf);
if(m_isDemoMode) demo.append(buf);
}
}
}