Experimental Physics and
Industrial Control System

"Liyu, Andrei" <[email protected]> · Mon, 11 Apr 2005 10:56:51 -0400

Jeff,

	If I am not mistaken there are not couple features in current CA
function interface.
	I can suppose that when you came to multithread CA you added
get_current_context and attach functions. But there is not similar
mechanism for ca_context_destoy. 
	So I open first thread, create CA context, create first CA
channel. Then I open second thread, attach to current CA context, create
second CA channel.  ... Then I decide to close first CA channel and
close context (???!!!). What is behavior CA library? I suppose second CA
channel will be closed without normal procedure of closing second
channel + its monitor?
	But I don't like to close second channel and CA context! Then I
should check is that channel latest? I couldn't find suitable function
in CA function API. Maybe get_current_context has something. But it is
very deep.
	I have once way - hold tracks of my CA channels (minimum is
global counter). Usually it could be done. But if program is mixture of
different libraries and each library comes to CA library then it becomes
impossible.

Thanks,
Andrei.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System