[Interest] post event between threads

[Samuel Gaist]

If you show us the code you use to setup the connections, we might be able to offer better help.

Samuel

On 3 avr. 2012, at 11:09, Riccardo Roasio wrote:

> I'm trying using signal/slots with Qt::QueuedConnection.
> Now the problem is this one..i have
> 
> - gui thread (main)
> 
> - serial rx thread
> 
> - scriptmanager thread
>        |
>        |----- script runner 1 thread (started from scriptsmanager)
>        |
>        |----- script runner 2 thread (started from scriptsmanager)
>        |
>        |----- script runner N thread (started from scriptsmanager)
> 
> now the event is emitted from serial rx thread
> 
> the main thread is able to catch the signal
> the scriptmanager is able to catch the signal
> the scriptrunner is NOT able to catch the signal
> 
> the only difference is that the sciptrunner has no parent (in the
> construtor the parent is NULL)
> 
> Riccardo
> 
> 
> 
> 
> Il 03 aprile 2012 09:29, Riccardo Roasio <riccardo.roasio at gmail.com> ha scritto:
>> Ok,
>> 
>> i will try!
>> 
>> thanks everybody
>> 
>> Il 03 aprile 2012 09:19, Lincoln Ramsay <lincoln.ramsay at nokia.com> ha scritto:
>>> On 04/03/2012 05:07 PM, ext Riccardo Roasio wrote:
>>>> I cannot use signal/slot because is blocking and i need to continue
>>>> reading from serial port while message is processing...
>>> 
>>> If you emit a signal and the receiver lives on the current thread and
>>> the connect() call did not use Qt::QueuedConnection, then it is
>>> "blocking". If you use Qt::DirectConnection or
>>> Qt::BlockingQueuedConnection then it is always "blocking".
>>> 
>>> But if the receiver lives on another thread or if you specified
>>> Qt::QueuedConnection then the signal puts an object on the event loop
>>> and returns immediately.
>>> 
>>> --
>>> Lincoln Ramsay - Senior Software Engineer
>>> Qt Development Frameworks, Nokia - http://qt.nokia.com/
>>> _______________________________________________
>>> Interest mailing list
>>> Interest at qt-project.org
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