Hi,
i want my application to wait indefinitely till a task gets completed in another thread. How to perform this in Qt.
in windows we use waitforsingletonobject but is there any alternative to this. can i get some hints from you guys..
Thanks
+2
A:
Waiting for threads to finish certain tasks (thread synchronization) is the job of the QWaitCondition class.
gspr
2010-10-05 14:05:57
Since he was referring to "a task" getting completed, I don't think he wants to wait for the entire thread to finish.
gspr
2010-10-05 14:25:26
if they use `WaitForSingleObject` on Windows, the Qt equivalent would be doing this.
Idan K
2010-10-05 18:30:21
wait keeps UI hung i guess, but till what extent i have to wait, infinite amount of time i have to..in this case how to do
Shadow
2010-10-06 06:12:09
without more information it's hard to give any worthy advice. if there's a UI involved, you probably need to use signals/slots. edit your question to provide more details.
Idan K
2010-10-06 09:27:31
A:
Use QtConcurrent::run. See my answer to this question. Note that the QFutureWatcher API can work in blocking (the waitForFinished method) and non-blocking (the finished signal) modes.
andref
2010-10-06 18:07:19