| From: | Neil Bothwick |
| Date: | 20 Aug 2001 at 21:35:29 |
| Subject: | Re: ARexx and MUI? |
Robert Cranley said,
> Hi All,
> Just wrote a simple script for controlling SongPlayer, and it launches
> SongPlayer if it isn't already running, then waits for the port etc. before
> continuing. Problem is if I run the script first thing after I boot, it
> takes *ages* (as in >30 sec.) to open the SongPlayer window, but it opens
> straight away if I quit and restart it, or if I have run any MUI apps before
> running the script.
It will take longer to start up if the MUI libraries and clases need to
be loaded.
> ADDRESS "COMMAND"
> IF ~SHOW(ports, "SONGPLAYER.1") THEN DO
> "WBRun Work:Sound/SongPlayer/SongPlayer"
> END
> DO UNTIL SHOW(ports, "SONGPLAYER.1")
> END
Ugh! That's busy-looping until SongPlayer is loaded. ARexx is sucking up
gobs of CPU time, causing the MUI load to take much longer.
Try
options results
address command
if ~show('P', 'SONGPLAYER.1') then do
'WBRun Work:Sound/SongPlayer/SongPlayer'
for i = 1 to 6 until RC = 0
'waitforport SONGPLAYER.1'
end
if RC > 0 then exit
rest of script.
Waitforport waits up to ten seconds for the port to appear, and returns
WARN if it hasn't. This loop exits as soon as SongPlayer's port
appears, or after a minute with an error if it doesn't load by then. CPU
usage is about 0.000000005% of your version :)
Cheers
Neil
"I do not fear computers, I fear the lack of them" - Asimov
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