maemosshthread.cpp 6.34 KiB
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#include "maemosshthread.h"
namespace Qt4ProjectManager {
namespace Internal {
template <class SshConnection> MaemoSshThread<SshConnection>::MaemoSshThread(const Core::SshServerInfo &server)
: m_server(server), m_stopRequested(false)
{
}
template <class SshConnection> MaemoSshThread<SshConnection>::~MaemoSshThread()
{
stop();
wait();
}
template <class SshConnection> void MaemoSshThread<SshConnection>::run()
{
if (m_stopRequested)
return;
if (!runInternal())
m_error = m_connection->error();
}
template<class SshConnection> void MaemoSshThread<SshConnection>::stop()
{
m_mutex.lock();
m_stopRequested = true;
m_waitCond.wakeAll();
const bool hasConnection = !m_connection.isNull();
if (hasConnection)
m_connection->quit();
m_mutex.unlock();
}
template<class SshConnection> void MaemoSshThread<SshConnection>::waitForStop()
{
m_mutex.lock();
while (!stopRequested())
m_waitCond.wait(&m_mutex);
m_mutex.unlock();
}
template<class SshConnection> void MaemoSshThread<SshConnection>::createConnection()
{
typename SshConnection::Ptr connection = SshConnection::create(m_server);
m_mutex.lock();
m_connection = connection;
m_mutex.unlock();
}
MaemoSshRunner::MaemoSshRunner(const Core::SshServerInfo &server,
const QString &command)
: MaemoSshThread<Core::InteractiveSshConnection>(server),
m_command(command)
{
m_prompt = server.uname == QLatin1String("root") ? "#" : "$";
}
bool MaemoSshRunner::runInternal()
{
createConnection();
connect(m_connection.data(), SIGNAL(remoteOutputAvailable()),
this, SLOT(handleRemoteOutput()));
m_endMarkerCount = 0;
m_promptEncountered = false;
if (!m_connection->start())
return false;
if (stopRequested())
return true;
waitForStop();
return !m_connection->hasError();
}
void MaemoSshRunner::handleRemoteOutput()
{
const QByteArray output
= m_potentialEndMarkerPrefix + m_connection->waitForRemoteOutput(0);
// Wait for a prompt before sending the command.
if (!m_promptEncountered) {
if (output.indexOf(m_prompt) != -1) {
m_promptEncountered = true;
/*
* We don't have access to the remote process management, so we
* try to track the lifetime of the process by adding a second command
* that prints a rare character. When it occurs for the second time (the
* first one is the echo from the remote terminal), we assume the
* process has finished. If anyone actually prints this special character
* in their application, they are out of luck.
*/
const QString finalCommand = m_command + QLatin1String(";echo ")
+ QString::fromUtf8(EndMarker) + QLatin1Char('\n');
if (!m_connection->sendInput(finalCommand.toUtf8()))
stop();
}
return;
}
/*
* The output the user should see is everything after the first
* and before the last occurrence of our marker string.
*/
int firstCharToEmit;
int charsToEmitCount;
const int endMarkerPos = output.indexOf(EndMarker);
if (endMarkerPos != -1) {
if (m_endMarkerCount++ == 0) {
firstCharToEmit = endMarkerPos + EndMarker.count() + 1;
int endMarkerPos2
= output.indexOf(EndMarker, firstCharToEmit);
if (endMarkerPos2 != -1) {
++ m_endMarkerCount;
charsToEmitCount = endMarkerPos2 - firstCharToEmit;
} else {
charsToEmitCount = -1;
}
} else {
firstCharToEmit = 0;
charsToEmitCount = endMarkerPos;
}
} else {
if (m_endMarkerCount == 0) {
charsToEmitCount = 0;
} else {
firstCharToEmit = m_potentialEndMarkerPrefix.count();
charsToEmitCount = -1;
}
}
if (charsToEmitCount != 0) {
emit remoteOutput(QString::fromUtf8(output.data() + firstCharToEmit,
charsToEmitCount));
}
if (m_endMarkerCount == 2)
stop();
m_potentialEndMarkerPrefix = output.right(EndMarker.count() - 1);
}
const QByteArray MaemoSshRunner::EndMarker(QString(QChar(0x13a0)).toUtf8());
MaemoSshDeployer::MaemoSshDeployer(const Core::SshServerInfo &server,
const QList<Core::SftpTransferInfo> &deploySpecs)
: MaemoSshThread<Core::SftpConnection>(server),
m_deploySpecs(deploySpecs)
{
}
bool MaemoSshDeployer::runInternal()
{
createConnection();
if (!m_connection->start())
return false;
if (stopRequested())
return true;
connect(m_connection.data(), SIGNAL(fileCopied(QString)),
this, SIGNAL(fileCopied(QString)));
return m_connection->transferFiles(m_deploySpecs);
}
} // namespace Internal
} // namespace Qt4ProjectManager