Expendable Subroutine (OpenInsight 32-bit)
At 23 OCT 2011 11:16:33PM Johan Liebenberg wrote:
Hi everybody,
I came across this in one of our programs:
"Expendable Subroutine abc(a)"
I believe it comes from Arev days, but I cannot find anything in the OI help documents. Can somebody please enlighten me to the use of this? It compiles OK but is it still of any benefit?
Thanks
Johan
At 24 OCT 2011 08:36AM andrew mcauley wrote:
Hi everybody,
I came across this in one of our programs:
"Expendable Subroutine abc(a)"
I believe it comes from Arev days, but I cannot find anything in the OI help documents. Can somebody please enlighten me to the use of this? It compiles OK but is it still of any benefit?
Thanks
Johan
Expendable was a keyboard which instructed RTP27 to remove the object code from the program stack after execution. This was done for two reasons :-
[list]
to save string space when memory was limited
to ensure that the current version of the code was in use
[/list]
So it was used a lot during development to ensure that a cached version of the code was not called.
It is ignored in OI and has no effect. If you wish to reload object code in OI you can
run rtp27 programName
from the system monitor.
World leaders in all things RevSoft
At 24 OCT 2011 09:38AM andrew mcauley wrote:
Keyword not keyboard. I'd like to blame predictive text. Regretfully I'll just have to accept stupidity :)
World leaders in all things RevSoft
At 24 OCT 2011 04:40PM Johan Liebenberg wrote:
Thanks Andrew!
ps. I didn't even notice the keyboard bit until you pointed it out. Funny how the brain ( or lack there off ) works. :smile:
At 26 OCT 2011 08:44PM Richard Hunt wrote:
Wouldn't the use of the GARBAGECOLLECT statement work? Although it would wipe all cached object code. Works for me.
At 26 OCT 2011 08:52PM Johan Liebenberg wrote:
The code originally came from AREV days. Way back then, CPU cycles and memory was scarce. Now it only interferes with our version control system which didn't know what to do with it. Easy solution was to just delete it. We still have garbagecollect and flush in a few places, but I doubt if we even need that.