How to detect when ssh connection (over a QProcess) has finished?

Question

I am running an ssh tunnel from an application using a QProcess:

QProcess* process = new QProcess();
process->start(\"ssh\", QStringList()<<         


        

Answer 1

I had the same problem, but in my case ssh do not output anything - so I couldn't just wait for output. I'm also using ssh to setupt tunnel, so I used QTcpSocket:

program = "ssh";
arguments << m_host << "-N" << "-L" << QString("3306:%1:3306").arg(m_host);
connect(tunnelProcess, &QProcess::started, this, &Database::waitForTunnel);
tunnelProcess->start(program, arguments);

waitForTunnel() slot:

QTcpSocket sock;
sock.connectToHost("127.0.0.1", 3306);
if(sock.waitForConnected(100000))
{
     sock.disconnectFromHost();
     openDatabaseConnection();
}
else
    qDebug() << "timeout";

I hope this will help future people finding this question ;)