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<== Date ==> <== Thread ==>

Subject: Would it be recommended to delete an asynPortDriver object when the IOC exits?
From: "Heesterman, Peter J" <[email protected]>
To: "EPICS Tech-Talk ([email protected])" <[email protected]>
Date: Thu, 14 Jan 2016 16:12:44 +0000

Hi,

 

I invoke epicsAtExit to provide call-back notification that the IOC is exiting (in response to the user typing ‘exit’).

 

It seems to me good practice to delete the C++ IOC object, before the application exits, so as to prevent resource leaks.

(Rather than relying on the operating system to de-allocate.)

 

However, in my application , this results in unhandled access violation(s) after the object has been deleted (at least, in a debug build).

This occurs in the readInt32 call-back function, where it attempts to call pPvt->lock().

 

I believe this is caused by continued (threaded) scan polling of the record, after the object referenced has been destroyed.

 

It’s not a major problem.

 

Many thanks,

 

Peter.

 


Replies:
RE: Would it be recommended to delete an asynPortDriver object when the IOC exits? Mark Rivers

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