Experimental Physics and
Industrial Control System

Ron Chestnut <[email protected]> · Tue, 02 Jun 1998 10:43:16 -0700 (PDT)

I've just added the "option +r;" to several sequence programs so that the same code 
can run for two different subsystems (High and Low energy PEP-II ring injection).

Since these SNL programs with associated subroutines are my favorite hammer, some have 
gotten complicated. Since I access PV-assigned variables in my escaped "C" 
subroutines, I've added the pVar-> notation and passed in pVar as an argument, as the 
documentation insists I should. My question concerns the fate of other file scoped 
variables.

In the dumb example below, do order_a and bunch_time need to be part of some structure 
allocated at run time and referred to indirectly as in the pVar example? 

If they are not, do two seperate invocations of this sequence (with other STN macro 
substitution) then refer to the same storage locations?

Thanks in advance.

/Ron Chestnut

P.S. William, have you broken the latest SNL stuff out of base yet???

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System