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#include "hwmap.h"
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#include "hwconsts.h"
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#include <QMessageBox>
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#include <QMutex>
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#include <QDebug>
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#include <QList>
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int HWMap::isBusy(0); // initialize static variable
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QList<HWMap*> srvsList;
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QMutex tcpSrvMut;
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HWMap::HWMap() :
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m_isStarted(false)
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{
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}
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HWMap::~HWMap()
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{
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}
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void HWMap::getImage(std::string seed)
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{
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m_seed=seed;
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Start();
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}
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void HWMap::ClientDisconnect()
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{
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QImage im((uchar*)(const char*)readbuffer, 256, 128, QImage::Format_Mono);
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im.setNumColors(2);
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IPCSocket->close();
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IPCSocket->deleteLater();
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IPCSocket = 0;
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IPCServer->close();
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//deleteLater();
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tcpSrvMut.lock();
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if(isBusy) --isBusy;
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//if(!isBusy) srvsList.pop_front();//lastStarted=0;
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tcpSrvMut.unlock();
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qDebug() << "image emitted with seed " << QString(m_seed.c_str());
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emit ImageReceived(im);
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readbuffer.clear();
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emit isReadyNow();
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}
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void HWMap::ClientRead()
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{
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readbuffer.append(IPCSocket->readAll());
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}
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void HWMap::SendToClientFirst()
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{
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std::string toSend=std::string("eseed ")+m_seed;
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char ln=(char)toSend.length();
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IPCSocket->write(&ln, 1);
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IPCSocket->write(toSend.c_str(), ln);
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IPCSocket->write("\x01!", 2);
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}
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void HWMap::NewConnection()
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{
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QTcpSocket * client = IPCServer->nextPendingConnection();
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if(!IPCSocket) {
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IPCServer->close();
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IPCSocket = client;
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connect(client, SIGNAL(disconnected()), this, SLOT(ClientDisconnect()));
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connect(client, SIGNAL(readyRead()), this, SLOT(ClientRead()));
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SendToClientFirst();
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} else {
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qWarning("2nd IPC client?!");
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client->disconnectFromHost();
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}
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}
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void HWMap::StartProcessError(QProcess::ProcessError error)
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{
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QMessageBox::critical(0, tr("Error"),
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tr("Unable to run engine: %1 (")
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.arg(error) + bindir->absolutePath() + "/hwengine)");
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}
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void HWMap::tcpServerReady()
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{
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qDebug() << "received signal, i am " << this << ";";
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qDebug() << srvsList.front() << " disconnected from " << *(++srvsList.begin());
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tcpSrvMut.lock();
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disconnect(srvsList.front(), SIGNAL(isReadyNow()), *(++srvsList.begin()), SLOT(tcpServerReady()));
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srvsList.pop_front();
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tcpSrvMut.unlock();
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RealStart();
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}
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void HWMap::Start()
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{
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tcpSrvMut.lock();
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if(!isBusy) {
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qDebug() << "notBusy, i am " << this;
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++isBusy;
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srvsList.push_back(this);
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tcpSrvMut.unlock();
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} else {
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qDebug() << "Busy, connected " << srvsList.back() << " to " << this;
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connect(srvsList.back(), SIGNAL(isReadyNow()), this, SLOT(tcpServerReady()));
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srvsList.push_back(this);
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//deleteLater();
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tcpSrvMut.unlock();
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return;
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}
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RealStart();
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}
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void HWMap::RealStart()
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{
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IPCServer = new QTcpServer(this);
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connect(IPCServer, SIGNAL(newConnection()), this, SLOT(NewConnection()));
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IPCServer->setMaxPendingConnections(1);
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IPCSocket = 0;
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if (!IPCServer->listen(QHostAddress::LocalHost, IPC_PORT)) {
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QMessageBox::critical(0, tr("Error"),
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tr("Unable to start the server: %1.")
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.arg(IPCServer->errorString()));
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}
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QProcess * process;
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QStringList arguments;
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process = new QProcess;
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connect(process, SIGNAL(error(QProcess::ProcessError)), this, SLOT(StartProcessError(QProcess::ProcessError)));
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arguments << "46631";
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arguments << "landpreview";
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process->start(bindir->absolutePath() + "/hwengine", arguments);
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}
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