/* * Remote Laboratory FPGA Viewer Part * * 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; either version 3 of the License, or * (at your option) any later version. * * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * (c) 2012 Timothy Pearson * Raptor Engineering * http://www.raptorengineeringinc.com */ #include "define.h" #include "part.h" #include //::createAboutData() #include #include #include //::start() #include #include #include #include //encodeName() #include //postInit() hack #include #include #include #include #include #include //access() #include #include "tracewidget.h" #include "floatspinbox.h" #include "layout.h" namespace RemoteLab { typedef KParts::GenericFactory Factory; #define CLIENT_LIBRARY "libremotelab_fpgaviewer" K_EXPORT_COMPONENT_FACTORY(libremotelab_fpgaviewer, RemoteLab::Factory) FPGAViewPart::FPGAViewPart(TQWidget *parentWidget, const char *widgetName, TQObject *parent, const char *name, const TQStringList&) : ReadOnlyPart( parent, name ), m_socket(0), m_base(0) { // Initialize mutex m_connectionMutex = new TQMutex(false); // Initialize kpart setInstance(Factory::instance()); setWidget(new TQVBox(parentWidget, widgetName)); // Create timers m_updateTimer = new TQTimer(this); // Create widgets m_base = new FPGAViewBase(widget()); processLockouts(); TQTimer::singleShot(0, this, TQT_SLOT(postInit())); } FPGAViewPart::~FPGAViewPart() { if (m_connectionMutex->locked()) { printf("[WARNING] Exiting when data transfer still in progress!\n\r"); fflush(stdout); } if (m_socket) { m_socket->clearPendingData(); m_socket->close(); delete m_socket; m_socket = NULL; } delete m_connectionMutex; } void FPGAViewPart::processLockouts() { TQWidget* mainWidget = widget(); if (mainWidget) { if ((m_socket) && (m_socket->state() == TQSocket::Connected)) { mainWidget->setEnabled(true); } else { mainWidget->setEnabled(false); } } } void FPGAViewPart::connectionClosed() { closeURL(); } void FPGAViewPart::postInit() { connect(m_updateTimer, SIGNAL(timeout()), this, SLOT(updateDisplay())); } bool FPGAViewPart::openURL(const KURL &url) { int ret; ret = connectToServer(url.url()); // RAJA FIXME // Need canary? processLockouts(); return (ret != 0); } bool FPGAViewPart::closeURL() { printf("[RAJA DEBUG 710.0] In FPGAViewPart::closeURL\n\r"); fflush(stdout); printf("[RAJA DEBUG 710.1] In FPGAViewPart::closeURL\n\r"); fflush(stdout); if (m_socket) { m_socket->clearPendingData(); printf("[RAJA DEBUG 710.2] In FPGAViewPart::closeURL\n\r"); fflush(stdout); m_socket->close(); printf("[RAJA DEBUG 710.3] In FPGAViewPart::closeURL\n\r"); fflush(stdout); m_socket->deleteLater(); printf("[RAJA DEBUG 710.4] In FPGAViewPart::closeURL\n\r"); fflush(stdout); m_socket = NULL; printf("[RAJA DEBUG 710.5] In FPGAViewPart::closeURL\n\r"); fflush(stdout); } printf("[RAJA DEBUG 710.6] In FPGAViewPart::closeURL\n\r"); fflush(stdout); processLockouts(); m_url = KURL(); return true; } int FPGAViewPart::connectToServer(TQString server) { printf("[RAJA DEBUG 200.0] In FPGAViewPart::connectToServer\n\r"); fflush(stdout); if (m_socket) { printf("[RAJA DEBUG 200.1] In FPGAViewPart::connectToServer TRIED TO CONNECT TWICE!!!\n\r"); fflush(stdout); return -1; } if (!m_socket) { m_socket = new TDEKerberosClientSocket(this); } m_socket->setServiceName("remotefpga"); m_socket->setServerFQDN(server); m_socket->connectToHost(server, 4004); while ((m_socket->state() != TQSocket::Connected) && (m_socket->state() != TQSocket::Idle)) { tqApp->eventLoop()->processEvents(TQEventLoop::AllEvents); if (!m_socket) return -1; // Any entry into the event loop could end up deleting the socket object depending on user interaction } if (m_socket->state() != TQSocket::Connected) { return -1; } m_socket->setDataTimeout(5000); m_socket->setUsingKerberos(true); while (m_socket->kerberosStatus() == TDEKerberosClientSocket::KerberosInitializing) { tqApp->eventLoop()->processEvents(TQEventLoop::AllEvents); if (!m_socket) return -1; // Any entry into the event loop could end up deleting the socket object depending on user interaction } if (m_socket->kerberosStatus() != TDEKerberosClientSocket::KerberosInUse) { m_socket->close(); KMessageBox::error(0, i18n("Unable to establish Kerberos protocol with remote server

Please verify that you currently hold a valid Kerberos ticket"), i18n("Connection Failed")); return -1; } connect(m_socket, SIGNAL(connectionClosed()), this, SLOT(connectionClosed())); // Kerberos connection established! m_connectionMutex->lock(); TQString response; TQDataStream ds(m_socket); // Read magic number and proto version from server TQ_UINT32 magicnum; TQ_UINT32 protover; ds >> magicnum; ds >> protover; printf("[DEBUG] Got magic number %d and protocol version %d\n\r", magicnum, protover); fflush(stdout); // Request connection to backend server ds << TQString("SERV"); ds << TQString(CLIENT_LIBRARY); ds >> response; printf("[RAJA DEBUG 400.0] Got '%s' from the server\n\r", response.ascii()); fflush(stdout); if (response == "OK") { m_connectionMutex->unlock(); return 0; } else if (response == "ERRNOCONN") { KMessageBox::error(0, i18n("Unable to establish connection with backend server

Please verify that you are currently connected to a workspace"), i18n("Connection Failed")); m_connectionMutex->unlock(); return -1; } else if (response == "ERRNOTAVL") { KMessageBox::error(0, i18n("The backend server is not available at this time

Please try a different workspace, or try again later"), i18n("Connection Failed")); m_connectionMutex->unlock(); return -1; } else if (response == "ERRNOSERV") { KMessageBox::error(0, i18n("The active laboratory workspace does not support the requested service"), i18n("Service Unavailable")); m_connectionMutex->unlock(); return -1; } else { KMessageBox::error(0, i18n("Unable to establish connection with remote server"), i18n("Connection Failed")); m_connectionMutex->unlock(); return -1; } m_connectionMutex->unlock(); return 0; } void FPGAViewPart::updateDisplay() { // RAJA FIXME } KAboutData* FPGAViewPart::createAboutData() { return new KAboutData( APP_NAME, I18N_NOOP( APP_PRETTYNAME ), APP_VERSION ); } } //namespace RemoteLab #include "part.moc"