How to Release IOPCServer interface quickly.|Classic OPC: DA, A&E, HDA, XML-DA, etc.|Forum|OPC Foundation

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How to Release IOPCServer interface quickly.
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Yusuke Masuda
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02/13/2021 - 08:12
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I have developed OPC clients in c++ using OPC interfaces.
When OPC client is disconnected to OPC Server, IOPCServer interface is released on my code. However, Releasing IOPCServer takes some times. To reduce to the time, I’m trying not to release IOPCServer and just fill in with null. What if IOPCServer is not released? Is there any way to reduce release time?
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Randy Armstrong
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02/13/2021 - 16:52
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The delay may be because of a deadlock created by a callback that happens to be occurring before you release the server object.

I suggest you remove any connection points you have set up before you release the server.

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Yusuke Masuda
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02/13/2021 - 20:40
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Randy Armstrong said
The delay may be because of a deadlock created by a callback that happens to be occurring before you release the server object.

I suggest you remove any connection points you have set up before you release the server.

  

Thank you for the reply.Smile

What does “connection points” mean?

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Randy Armstrong
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02/14/2021 - 06:42
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The concepts are explained in the “OPC Common Specification”.

https://opcfoundation.org/deve…..ta-access/

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