> > What's the "right way" to connect QProcess::finished to QEventLoop::quit?
>
> The one you listed above.
It turns out that I'm not even using that anymore.
In the situation that there's a problem, you end up waiting for timeout.
So:
connect(process,QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
&loop, &QEventLoop::quit);
becomes:
connect(process, &QProcess::stateChanged,[=, &loop](QProcess::ProcessState
state) {
qDebug() << "stateCanged" << state;
if (state == QProcess::ProcessState::NotRunning) loop.quit();
});
Because the NotRunning will occur always, and immediately, and finished won't.
Failed command:
stateCanged QProcess::Starting
stateCanged QProcess::NotRunning
// no finished!
Successful command:
stateCanged QProcess::Starting
stateCanged QProcess::Running
stateCanged QProcess::NotRunning
finished 0 QProcess::NormalExit
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