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Article #145dce rpc -- who supports it? and other thougthts
From: James Baker
Date: Thu, 19 Nov 1992 05:56
Date: Thu, 19 Nov 1992 05:56
41 lines
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2713 bytes
My main question is: who supports DCE RPC now? And for the other players, when? So I know Window NT does -- I have played with it -- and I guess OSF/1 which DEC supports should. But will IBM support it for its mainframes and on what: VM/GCS? Any wild ideas are appreciazted. As for my experience with DCE RPC on Windows NT, it seems to be a reasonable implementation of the RPC paradigm, as I understand it from reading Power Programming and RPC and some other less useful books. Not that I don't have gripes. I would like to be able to control the various queues with my own service discipline, or at least not without altering the stub code. An example would be to allow asynchronous calls and other less generic calling protocols. Of course, ONC RPC has a rather simple way of supporting an asynchronous protocol -- zero timeouts -- but could those fail on a machine with both client and server on the same machine? DCE RPC, on the other hand disallows this trickery by making a zero timeout something else: a qualitative minimum time that a response should take. The attitude that DCE RPC takes is either you are going to spin a thread off to call a long running RPC routine or you are going to break it up into two and spin to find when the results are ready. I am sure it is indeed for the best ;-). In the article in Microsoft Systems Journal about the NT architecture, Helen Custer (?) mentioned that the client-server support for local (same machine, different address space) RPC is optimized by thread pairing between the client/server. Does MIDL/ACF support this with the localrpc protocol, currently so well-documented ;-)? BTW, am I right in thinking that OSF is some secret society? I bike by their place all the time in Cambridge -- and strangely I never hear of them doing anything except in the pages of ComputerWorld and PC Week and the Burton Group. Nor is there a great abundance of postings in comp.unix.osf. Do I have to be on some mailing list? Thanks. -- Jim jbaker@husc.harvard.edu (forwarded to ...) jimb@kenan.com
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Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!das-news.harvard.edu!husc-news.harvard.edu!husc-news!jbaker From: jbaker@husc8.harvard.edu (James Baker) Newsgroups: comp.client-server,comp.unix.osf.misc,comp.os.ms-windows.programmer.win32 Subject: dce rpc -- who supports it? and other thougthts Keywords: NT RPC DCE OSF/1 calling protocol Message-ID: <JBAKER.92Nov18215657@husc8.harvard.edu> Date: 19 Nov 92 05:56:57 GMT Article-I.D.: husc8.JBAKER.92Nov18215657 Distribution: comp.client-server Organization: Harvard Arts and Sciences Computer Services, Cambridge, MA Lines: 41 Nntp-Posting-Host: husc8.harvard.edu