Experimental Physics and
Industrial Control System

Heinrich du Toit <[email protected]> · Wed, 12 Dec 2007 08:23:47 +0200

Hi
Wouldn't it be nice to specify the EPICS_CA_* values firstly through
functions in the library rather than environment variables only.

And then secondly on a per-connection basis.

So you can have seperate setup for every PV connection. ?

Is it possible to link casw into a program somehow? So that your client
program can monitor the status of a specific IOC?

It would be nice if the ARRAY_SIZE_LIMIT thing be done differently?
Maybe removed all-together? Or be implemented in a way that it can be
easily changed on the fly inside a program - The documentation aint very
clear if this env-var is read while the program is running or only on
startup?

Then a question:

Can somebody explain the relationship between.

ca_flush_io

ca_poll

ca_pend_io

ca_pend_event

And which ones of these I don't have to call in a enabled pre-emptive
callback environment?
And lastly - with the CA library.
How do I control users - password ect in case of Access Control on IOC's ?
Thanks you for your answers in advance :)
-Heinrich

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System