123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229 |
- #include "OpenMSXConnection.h"
- #include <QXmlInputSource>
- #include <QXmlSimpleReader>
- #include <cassert>
- SimpleCommand::SimpleCommand(const QString& command_)
- : command(command_)
- {
- }
- QString SimpleCommand::getCommand() const
- {
- return command;
- }
- void SimpleCommand::replyOk (const QString& message)
- {
- emit replyStatusOk(true);
- delete this;
- }
- void SimpleCommand::replyNok(const QString& message)
- {
- emit replyStatusOk(false);
- cancel();
- }
- void SimpleCommand::cancel()
- {
- delete this;
- }
- static QString createDebugCommand(const QString& debuggable,
- unsigned offset, unsigned size)
- {
- return QString("debug_bin2hex [ debug read_block %1 %2 %3 ]")
- .arg(debuggable).arg(offset).arg(size);
- }
- ReadDebugBlockCommand::ReadDebugBlockCommand(const QString& commandString,
- unsigned size_, unsigned char* target_)
- : SimpleCommand(commandString)
- , size(size_), target(target_)
- {
- }
- ReadDebugBlockCommand::ReadDebugBlockCommand(const QString& debuggable,
- unsigned offset, unsigned size_, unsigned char* target_)
- : SimpleCommand(createDebugCommand(debuggable, offset, size_))
- , size(size_), target(target_)
- {
- }
- static QString createDebugWriteCommand(const QString& debuggable,
- unsigned offset, unsigned size, unsigned char *data )
- {
- QString cmd = QString("debug write_block %1 %2 [ debug_hex2bin \"")
- .arg(debuggable).arg(offset);
- for (unsigned i = offset; i < offset + size; ++i) {
- cmd += QString("%1").arg(int(data[i]), 2, 16, QChar('0')).toUpper();
- }
- cmd += "\" ]";
- return cmd;
- }
- WriteDebugBlockCommand::WriteDebugBlockCommand(const QString& debuggable,
- unsigned offset, unsigned size_, unsigned char* source_)
- : SimpleCommand(createDebugWriteCommand(debuggable, offset, size_, source_))
- {
- }
- static unsigned char hex2val(char c)
- {
- return (c <= '9') ? (c - '0') : (c - 'A' + 10);
- }
- void ReadDebugBlockCommand::copyData(const QString& message)
- {
- assert(static_cast<unsigned>(message.size()) == 2 * size);
- for (unsigned i = 0; i < size; ++i) {
- target[i] = (hex2val(message[2 * i + 0].toLatin1()) << 4) +
- (hex2val(message[2 * i + 1].toLatin1()) << 0);
- }
- }
- OpenMSXConnection::OpenMSXConnection(QAbstractSocket* socket_)
- : socket(socket_)
- , reader(new QXmlSimpleReader())
- , connected(true)
- {
- assert(socket->isValid());
- reader->setContentHandler(this);
- reader->setErrorHandler(this);
- connect(socket, SIGNAL(readyRead()), this, SLOT(processData()));
- connect(socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)),
- this, SLOT(socketStateChanged(QAbstractSocket::SocketState)));
- connect(socket, SIGNAL(error(QAbstractSocket::SocketError)),
- this, SLOT(socketError(QAbstractSocket::SocketError)));
- socket->write("<openmsx-control>\n");
- }
- OpenMSXConnection::~OpenMSXConnection()
- {
- cleanup();
- assert(commands.empty());
- assert(!connected);
- socket->deleteLater();
- }
- void OpenMSXConnection::sendCommand(Command* command)
- {
- assert(command);
- if (connected && socket->isValid()) {
- commands.enqueue(command);
- QString cmd = "<command>" + command->getCommand() + "</command>";
- socket->write(cmd.toUtf8());
- } else {
- command->cancel();
- }
- }
- void OpenMSXConnection::cleanup()
- {
- if (!connected) return;
- connected = false;
- if (socket->isValid()) {
- socket->disconnect(this, SLOT(processData()));
- socket->disconnect(this, SLOT(socketStateChanged(QAbstractSocket::SocketState)));
- socket->disconnect(this, SLOT(socketError(QAbstractSocket::SocketError)));
- socket->write("</openmsx-control>\n");
- socket->disconnectFromHost();
- }
- cancelPending();
- emit disconnected();
- }
- void OpenMSXConnection::cancelPending()
- {
- assert(!connected);
- while (!commands.empty()) {
- Command* command = commands.dequeue();
- command->cancel();
- }
- }
- void OpenMSXConnection::socketStateChanged(QAbstractSocket::SocketState state)
- {
- if (state != QAbstractSocket::ConnectedState) {
- cleanup();
- }
- }
- void OpenMSXConnection::socketError(QAbstractSocket::SocketError /*state*/)
- {
- cleanup();
- }
- void OpenMSXConnection::processData()
- {
- if (input.get()) {
- // continue
- input->setData(socket->readAll());
- reader->parseContinue();
- } else {
- // first time
- input.reset(new QXmlInputSource());
- input->setData(socket->readAll());
- reader->parse(input.get(), true); // incremental parsing
- }
- }
- bool OpenMSXConnection::fatalError(const QXmlParseException& exception)
- {
- qWarning("Fatal error on line %i, column %i: %s",
- exception.lineNumber(), exception.columnNumber(),
- exception.message().toLatin1().data());
- cleanup();
- return false;
- }
- bool OpenMSXConnection::startElement(
- const QString& /*namespaceURI*/, const QString& /*localName*/,
- const QString& /*qName*/, const QXmlAttributes& atts)
- {
- xmlAttrs = atts;
- xmlData.clear();
- return true;
- }
- bool OpenMSXConnection::endElement(
- const QString& /*namespaceURI*/, const QString& /*localName*/,
- const QString& qName)
- {
- if (qName == "openmsx-output") {
- // ignore
- } else if (qName == "reply") {
- if (connected) {
- Command* command = commands.dequeue();
- if (xmlAttrs.value("result") == "ok") {
- command->replyOk (xmlData);
- } else {
- command->replyNok(xmlData);
- }
- } else {
- // still receive a reply while we're already closing
- // the connection, ignore it
- }
- } else if (qName == "log") {
- emit logParsed(xmlAttrs.value("level"), xmlData);
- } else if (qName == "update") {
- emit updateParsed(xmlAttrs.value("type"), xmlAttrs.value("name"), xmlData);
- } else {
- qWarning("Unknown XML tag: %s", qName.toLatin1().data());
- }
- return true;
- }
- bool OpenMSXConnection::characters(const QString& ch)
- {
- xmlData += ch;
- return true;
- }
|