BlockingQueuedConnection is not working it is leading to deadlock condition.

Hi everyone,
I am uing Qt:: BlockingQueuedConnection in the connect option like below, but it going to deadlock state when i use this please help me in this issue soon am a newbie to Qt.. Here is my code

Code:

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connect (this, SIGNAL(moduleDatarcvd(int)), this, SLOT(ShowModuleSimWnd(int)),Qt::BlockingQueuedConnection);

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here i am waiting for a signal to come when my ShowmoduleSimWnd method is called. please tell me an alternative that wath i can use.and for this blocking of my ui is happening. please help me

Don't ask the same question in two places... it is bad manners and only serves to fracture any response.

Sorry i am new to this forum..

rtfm ;)

Quote:

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Qt::BlockingQueuedConnection - Same as QueuedConnection, except the current thread blocks until the slot returns. This connection type should only be used where the emitter and receiver are in different threads. Note: Violating this rule can cause your application to deadlock.

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http://doc.qt.nokia.com/4.7-snapshot...ctionType-enum

Code:

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void VSDPM_CDT::DisplaySimWnd(int nModule)
{
	emit moduleDatarcvd(nModule);
}

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Here i am emitting a signal i.e n module and at receiver side:

Code:

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connect (this, SIGNAL(moduleDatarcvd(int)), this, SLOT(ShowModuleSimWnd(int)),Qt::BlockingQueuedConnection);

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and my ShowmoduleSimWnd is a method which will be called when it is received a signal i.e

Code:

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void VSDPM_CDT::ShowModuleSimWnd(int nModule)
{
	if(nModule == 0)
	{
		OnClickCanSimulation();
	}
	else if(nModule == 1)
	{
		OnClickLinSimulation();
	}
	else if(nModule == 2)
	{
		OnClickADCSimulation();
	}
	else if(nModule == 3)
	{
		OnClickDIOSimulation();
	}
	else if(nModule == 4)
	{
		OnClickPWMSimulation();
	}
	else if(nModule == 5)
	{
		ShowLogMessage("test","Inside module");
		OnClickTCPIPSimulation();
	}
	else if(nModule == 6)
	{
		OnClickBTSimulation();
	}
}

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in lin if(nModule == 5) i am getting a problem. Actually i am blocking the queue here to wait for a signal to come. please help me in this scenario

You have not given enough information. May I direct you to my signature.