QSignalSpy to receive signals for particular time instead of count

[Venkateswaran]

is possible to make the QSignalSpy wait for a particular time until it receives the specific signal. Right now I have this function which waits for the particular number of signal count and time. I want this function to wait for waitTimeoutMS and return if it receives a signal with specific data (instead of count). I tried bool QSignalSpy::wait(int timeout = 5000) but it return once it receives first signal.

bool waitForSpyCalled(QSignalSpy& spy, int waitTimeoutMS, int expectCount = 1) {
  for (int delay = waitTimeoutMS; delay > 0 && spy.count() < expectCount;
       delay -= 200) {
    QTest::qWait(200);
  }
  return spy.count() >= expectCount;
}

[SGaist]

Hi,

Do you mean have QSignalSpy start spying only after some delay ?

[Venkateswaran]

@SGaist Actually I want to look for a particular signal for period of time. Signal will emitted continuously from application.
Like for example void signalEmitStatus(const EnumType& e);
Now the enum type will be a list of application state like
enum EnumType {
Starting,
Init,
Init config,
Checking peers,
SUCCESS
}

App takes like 1000ms to reach "SUCCESS" state. So each state change gets emitted from signalEmitStatus, but some state will get skipped sometimes that's the reason I can't go with signal emit count. Either I have to collect signals for particular period of time and check the list of signals or need to spy for specific signal.

I want to catch that SUCCESS state signal

[SGaist]

Then I'd rather go with the inspection of the received value. That is more solid than relying on specific timing that might change with machine power.

[Venkateswaran]

@SGaist you mean to inspect each signal emit until I find SUCCESS. Is it possible to collect signals for particular period of time ?

[SGaist]

I think that you are looking for qWaitFor.