Experimental Physics and Industrial Control System
Dear all,
Another change that I made to the VxWorks global variable device support
was to read the global variable at record initialization time and use it to
initialize the value of the record.
This is not backwards-compatible and may not, I suspect, always be
desireable (indeed I fell foul of it myself this morning where I had
a longout with a constant in its DOL and expected that to be the value
output... it wasn't, because the .VAL field was initialized from the global
variable, and that had a different value).
So I propose making this behavior configurable, with the default being
the backwards compatible behavior (i.e. don't read the global variable at
init time). I propose supporting an abbreviable "initread" keyword in the
OUT specification to control this behavior.
Comments?
William
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