bool SgeQueueInterface::startJob(Structure *s)
{
SSHConnection *ssh = m_opt->ssh()->getFreeConnection();
if (ssh == NULL) {
m_opt->warning(tr("Cannot connect to ssh server"));
return false;
}
QWriteLocker wlocker (s->lock());
QString command = "cd \"" + s->getRempath() + "\" && " +
m_qsub + " job.sh";
QString stdout_str;
QString stderr_str;
int ec;
if (!ssh->execute(command, stdout_str, stderr_str, ec) || ec != 0) {
m_opt->warning(tr("Error executing %1: %2")
.arg(command).arg(stderr_str));
m_opt->ssh()->unlockConnection(ssh);
return false;
}
m_opt->ssh()->unlockConnection(ssh);
// Assuming stdout_str value is
// your job <jobID> ('job.sh') has been submitted
unsigned int jobID = stdout_str.split(QRegExp("\\s+"))[2].toUInt();
s->setJobID(jobID);
s->startOptTimer();
return true;
}
void SSHManagerCLITest::lockAllAndExecute()
{
QList<SSHConnection*> list;
for (int i = 0; i < NUM_CONN; i++) {
list.append(manager->getFreeConnection());
}
QString command = "expr 2 + 4";
QString stdout_str, stderr_str;
SSHConnection* conn;
int ec;
for (int i = 0; i < NUM_CONN; i++) {
conn = list.at(i);
QVERIFY(conn->execute(command, stdout_str, stderr_str, ec));
QCOMPARE(ec, 0);
QCOMPARE(stdout_str, QString("6\n"));
QVERIFY(stderr_str.isEmpty());
}
for (int i = 0; i < NUM_CONN; i++) {
manager->unlockConnection(list.at(i));
}
}
bool SgeQueueInterface::stopJob(Structure *s)
{
SSHConnection *ssh = m_opt->ssh()->getFreeConnection();
if (ssh == NULL) {
m_opt->warning(tr("Cannot connect to ssh server"));
return false;
}
// lock structure
QWriteLocker locker (s->lock());
// jobid has not been set, cannot delete!
if (s->getJobID() == 0) {
if (m_cleanRemoteOnStop) {
this->cleanRemoteDirectory(s, ssh);
}
m_opt->ssh()->unlockConnection(ssh);
return true;
}
const QString command = m_qdel + " " + QString::number(s->getJobID());
// Execute
QString stdout_str;
QString stderr_str;
int ec;
bool ret = true;
if (!ssh->execute(command, stdout_str, stderr_str, ec) || ec != 0) {
// Most likely job is already gone from queue.
ret = false;
}
s->setJobID(0);
s->stopOptTimer();
m_opt->ssh()->unlockConnection(ssh);
return ret;
}
QStringList SgeQueueInterface::getQueueList() const
{
// recast queue mutex as mutable for safe access:
QReadWriteLock &queueMutex = const_cast<QReadWriteLock&> (m_queueMutex);
queueMutex.lockForRead();
// Limit queries to once per second
if (m_queueTimeStamp.isValid() &&
// QDateTime::msecsTo is not implemented until Qt 4.7
#if QT_VERSION >= 0x040700
m_queueTimeStamp.msecsTo(QDateTime::currentDateTime())
<= 1000*m_interval
#else
// Check if day is the same. If not, refresh. Otherwise check
// msecsTo current time
(m_queueTimeStamp.date() == QDate::currentDate() &&
m_queueTimeStamp.time().msecsTo(QTime::currentTime())
<= 1000*m_interval)
#endif // QT_VERSION >= 4.7
) {
// If the cache is valid, return it
QStringList ret (m_queueData);
queueMutex.unlock();
return ret;
}
// Otherwise, store a copy of the current timestamp and switch
// queuemutex to writelock
QDateTime oldTimeStamp (m_queueTimeStamp);
queueMutex.unlock();
// Relock mutex
QWriteLocker queueLocker (&queueMutex);
// Non-fatal assert: Check current timestamp against the
// oldTimeStamp from earlier. If they don't match, another thread
// has already updated the queueData, so tail-recurse this
// function and try again.
if (m_queueTimeStamp.time().msecsTo(oldTimeStamp.time()) != 0) {
queueLocker.unlock();
return this->getQueueList();
}
// Queue will be updated -- cast queue cache and timestamp as
// mutable
QStringList &queueData = const_cast<QStringList&> (m_queueData);
QDateTime &queueTimeStamp = const_cast<QDateTime&> (m_queueTimeStamp);
// Get SSH connection
SSHConnection *ssh = m_opt->ssh()->getFreeConnection();
if (ssh == NULL) {
m_opt->warning(tr("Cannot connect to ssh server"));
queueTimeStamp = QDateTime::currentDateTime();
queueData.clear();
queueData << "CommError";
QStringList ret (m_queueData);
return ret;
}
QString command = m_qstat + " | grep " + m_opt->username;
// Execute
QString stdout_str;
QString stderr_str;
int ec;
// Valid exit codes for grep: (0) matches found, execution successful
// (1) no matches found, execution successful
// (2) execution unsuccessful
if (!ssh->execute(command, stdout_str, stderr_str, ec)
|| (ec != 0 && ec != 1 )
) {
m_opt->ssh()->unlockConnection(ssh);
m_opt->warning(tr("Error executing %1: (%2) %3\n\t"
"Using cached queue data.")
.arg(command)
.arg(QString::number(ec))
.arg(stderr_str));
queueTimeStamp = QDateTime::currentDateTime();
QStringList ret (m_queueData);
return ret;
}
m_opt->ssh()->unlockConnection(ssh);
queueData = stdout_str.split("\n", QString::SkipEmptyParts);
QStringList ret (m_queueData);
queueTimeStamp = QDateTime::currentDateTime();
return ret;
}