aw0g#atalk.errors@ANDREW.CMU.EDU (03/15/88)
It is lower case 'atpl', and I spent a long time debugging till I discovered what Paul Menon just said. ... Apple recommends (and I heartily agree) that anyone using ATP go the extra step and not use the 'glue' routines provided by 'atpl'. Instead use the PB - style calls. ... Cheers, Pete Gaston
rcopm@koel.rmit.oz (Paul Menon) (03/17/88)
in article <2837643@um.cc.umich.edu>, aw0g#atalk.errors@ANDREW.CMU.EDU says: > > It is lower case 'atpl', and I spent a long time debugging till > I discovered what Paul Menon just said. Ooops, darn caps lock KEY, THERE IT GOES AGAIN!! (sorry). > ... > Apple recommends (and I heartily agree) that anyone using ATP go the > extra step and not use the 'glue' routines provided by 'atpl'. Instead > use the PB - style calls. Agreed, but then why has Apple described these high level routines? Paul.
han@Apple.COM (Byron Han, fire fighter) (03/20/88)
the old style interfaces are described for historical reasons and for
backwards compatibility.
the new style interfaces involve a tad more work by the programmer but
are preferred. they are not that much harder to learn. then again,
I learned the low level stuff first before learning the higher Pascal
interfaces.
I guess part of the reason that the low level interfaces are recommended
are that if there are bugs in the glue that implement the higher level
Pascal interface, you would have to recompile your application (or at least
change your atpl resource). by using the low level stuff, you are
only relying on the apple drivers.
Hope this explains some things.
--
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GENIE:BYRONHAN COMPUSERVE:72167,1664 UUCP:{sun,voder,nsc,decwrl}!apple!hanaw0g+@ANDREW.CMU.EDU (Aaron Wohl) (03/21/88)
The atpl glue involves doing memory manger calls for each packet sent/recieved, this tends to be slow. Also the atpl glue is designed to send events after each async call compleats. The event manager isn't fast enough to really do this well. When a program gets a network event there is no way for it to handle network events from desk accessories (or other switcher/multifinder partitions). I was confused by the atpl glue for a while. I just assumed the assembly language calls defined in Inside mac V2 where logicaly the same as the pascal calls. They are compleatly different and don't have the problems mentioned above. The new prefered calls bring out the assembly language interface so that it is more usable from pascal. Aaron Wohl