hudson@dalcs.UUCP (Bruce Hudson) (10/07/87)
I am involved in attempting to write a symbiont to support a Zeta-8
plotter under VMS 4.5. I have written the shell of the symbiont but I
am having some difficulties. I would appreciate any help on the problems
described below. On the other hand -- if anyone has a working symbiont
that they would be willing to send to me; you'd make my day. If it
supports the Zeta plotters, so much the better.
However, I am currently stumped by two problems:
1) If I link by program with the /DEBUG option, a START/QUEUE will hang
immediately after starting the symbiont process. I have set up a
terminal and defined DBG$INPUT and DBG$OUTPUT appropriately. There
is no message to indicate what is going wrong and the first lines of
executable code - an open and a print - are not executed.
2) When I link the symbiont without debug and do a START/QUEUE; a number
of error messages are printed to the console by the job controller.
First there are a number of
'JBC-E-INVMSG, invalid mailbox message received'
followed by
'JBC-F-REAJBCMBX, error reading job controller mailbox'
and
'SYSTEM-W-ENDOFFILE, end of file'
The main problem that I have with this is that this seems to occur within
the call to SMB$INITIALIZE. I have fallen back on the old fashioned
debugging methods of writing debug information to a file. The line
immediately prior to the SMB$INITIALIZE call prints; one immediately
after does not.
I thank you in advance for any information/assistance. Please respond
by mail to HUDSON@DAL.BITNET.
Bruce Hudson
Dalhousie University
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Bruce A. Hudson {dartvax|utcsrgv|dreacad}!dalcs!hudson
Dalhousie University Halifax, NS, Canada