Experimental Physics and
Industrial Control System

Benjamin Franksen <[email protected]> · Fri, 13 Feb 2004 22:35:19 +0100

Hello,

I have a simple question regarding the CA client library: which is the 
guaranteed live span of the data ointed to by the void pointer argument 
received by a CA event handler routine?

More specifically: does this pointer change from call(-back) to call(-back) or 
does it always refer to the same memory location? (It could of course be 
anything in between).

The reason I ask is that (1) i'd like to know if there are any conditions 
under which it is safe to store the pointer for later access and (2) i 
couldn't find any hint on this in the CA reference manual.

Ben

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System