jparsons++at++ist.ucf.edu
Wed, 30 Oct 1996 01:30:19 -0500
I am porting some 1.2 code to Performer 2.0 on an Onyx RE2
running IRIX 5.3. The only significant changes I have made to
what has been reliable code, is converting from Pipes to PWins. I
now find that if I instance an Ascension driver class that opens a
serial port for reading and writing *before* I make my first
pfFrame() call, then I am unable to read data from the port.
However, as long as I wait until after the first pfFrame (wherever
in the code I happen to choose to put it) everything works just
dandy.
Is there a connection between pfFrame and proper access to a port,
or is this just an ugly memory leak, as I suspect, that has reared
its head now that the code segments have been shuffled?
BTW, I am using system read and write calls to the port, and opening
it from my own non-Performer (time-tested) serial class. This behavior
occurs whatever the proc split happens to be.
Ideas appreciated...
Jim Parsons
Visual Systems Lab
Institute for Simulation & Training
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