| Newbie Mac PPC shared lib [message #19227] |
Thu, 02 March 2000 00:00 |
Irene Barg
Messages: 4
Registered: December 1998
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Junior Member |
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Hello to all,
My development environment:
Mac G4 450MHz 512MB RAM OS 9
IDL 5.2 for Mac
CodeWarrior V5 for Mac
I'm new to the Macintosh, however, after reading several
posts regarding "shared libraries" on this newsgroup, I was
able to get my code up and running. Now, I have a question.
Our UNIX users use IDL, Interactive Data Language, package
from RSI, for interactive analysis and visualization. We have
a set of C routines that we have been able to call from IDL
using the IDL CALL_EXTERNAL function which loads and calls
routines contained in shareable object libraries. My task was
to port this C code to the Macintosh environment so that our
Mac/IDL users could use it as well.
Inside my IDL procedure, I call a C routine with the following:
s = CALL_EXTERNAL('calnica.shlb','do_cridcalc',nic,input,crimage )
Where:
"calnica.shlb" is my PowerPC shared library created with CW.
"do_cridcalc" is my entry point name to my shared code.
"nic, input, crimage" are pointers to data.
I created "shlb" using CW PPC Std C Console stationary. The
code works, but, while it's running, I can't do anything else
with the Mac. Normally, one processes more than one image at
a time, so I have to free up the Mac, but how? This is not
a problem on the UNIX platform. I'm not certain if it's an
IDL or Mac problem. Any insight you may have will be most
appreciated.
Thanks,
-- irene
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Irene Barg Email: ibarg@as.arizona.edu
Steward Observatory Phone: 520-621-2602
University of Arizona FAX: 520-621-1891
Tucson, AZ 85721 http://nickel.as.arizona.edu/~barg
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