void QueueManager::setupConnections()
{
// opt connections
connect(this, SIGNAL(needNewStructure()), m_opt, SLOT(generateNewStructure()),
Qt::QueuedConnection);
// re-emit connections
connect(this, SIGNAL(structureStarted(GlobalSearch::Structure*)), this,
SIGNAL(structureUpdated(GlobalSearch::Structure*)));
connect(this, SIGNAL(structureSubmitted(GlobalSearch::Structure*)), this,
SIGNAL(structureUpdated(GlobalSearch::Structure*)));
connect(this, SIGNAL(structureKilled(GlobalSearch::Structure*)), this,
SIGNAL(structureUpdated(GlobalSearch::Structure*)));
connect(this, SIGNAL(structureFinished(GlobalSearch::Structure*)), this,
SIGNAL(structureUpdated(GlobalSearch::Structure*)));
// internal connections
connect(this, SIGNAL(structureStarted(GlobalSearch::Structure*)), this,
SLOT(addStructureToSubmissionQueue(GlobalSearch::Structure*)),
Qt::QueuedConnection);
// Work around bug in Qt 4.6.3:
#if QT_VERSION == 0x040603
connect(this, SIGNAL(newStructureQueued()), this, SLOT(unlockForNaming_()),
Qt::QueuedConnection);
#endif // QT_VERSION == 4.6.3
QTimer::singleShot(0, this, SLOT(checkLoop()));
}
void ExampleSearch::startSearch()
{
// Add search-specific checks here
// If something is amiss, call error("Error message") and return.
// Are the selected queueinterface and optimizer happy?
QString err;
if (!m_optimizer->isReadyToSearch(&err)) {
error(tr("Optimizer is not fully initialized:") + "\n\n" + err);
return;
}
if (!m_queueInterface->isReadyToSearch(&err)) {
error(tr("QueueInterface is not fully initialized:") + "\n\n" + err);
return;
}
// Warn user if runningJobLimit is 0
if (limitRunningJobs && runningJobLimit == 0) {
error(tr("Warning: the number of running jobs is currently set to 0."
"\n\nYou will need to increase this value before the search "
"can begin (The option is on the 'Optimization Settings' tab)."));
};
// Initialize ssh connections
#ifdef ENABLE_SSH
// Create the SSHManager if running remotely
if (qobject_cast<RemoteQueueInterface*>(m_queueInterface) != 0) {
if (!this->createSSHConnections()) {
error(tr("Could not create ssh connections."));
return;
}
}
#endif // ENABLE_SSH
// Here we go!
debug("Starting optimization.");
// prepare pointers
m_tracker->lockForWrite();
m_tracker->deleteAllStructures();
m_tracker->unlock();
// Throw signal
emit startingSession();
////////////////////////////////
// Generate random structures //
////////////////////////////////
// Set up progress bar
m_dialog->startProgressUpdate(tr("Generating structures..."), 0, 0);
// Initalize loop variables
int progCount=0;
// Generation loop...
for (uint i = 0; i < runningJobLimit; i++) {
m_dialog->updateProgressMaximum( (i == 0)
? 0
: int(progCount
/ static_cast<double>(i))
* runningJobLimit );
m_dialog->updateProgressValue(progCount++);
m_dialog->updateProgressLabel(tr("%1 structures generated of (%2)...")
.arg(i)
.arg(runningJobLimit));
generateNewStructure();
}
// Wait for all structures to appear in tracker
m_dialog->updateProgressLabel(tr("Waiting for structures to initialize..."));
m_dialog->updateProgressMinimum(0);
m_dialog->updateProgressMinimum(runningJobLimit);
connect(m_tracker, SIGNAL(newStructureAdded(GlobalSearch::Structure*)),
m_initWC, SLOT(wakeAllSlot()));
m_initWC->prewaitLock();
do {
m_dialog->updateProgressValue(m_tracker->size());
m_dialog->updateProgressLabel(tr("Waiting for structures to initialize (%1 of %2)...")
.arg(m_tracker->size())
.arg(runningJobLimit));
// Don't block here forever -- there is a race condition where
// the final newStructureAdded signal may be emitted while the
// WC is not waiting. Since this is just trivial GUI updating
// and we check the condition in the do-while loop, this is
// acceptable. The following call will timeout in 250 ms.
m_initWC->wait(250);
}
while (m_tracker->size() < runningJobLimit);
m_initWC->postwaitUnlock();
// We're done with m_initWC.
m_initWC->disconnect();
m_dialog->stopProgressUpdate();
emit sessionStarted();
m_dialog->saveSession();
}