Article View: comp.sys.apple2.gno
Article #227Re: Shells
From: Jawaid Bazyar
Date: Mon, 28 Dec 1992 22:00
Date: Mon, 28 Dec 1992 22:00
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1825 bytes
vandry@CAM.ORG (Phillip Vandry) writes: [ fine suggestions for gsh deleted ] We'll be adding all the things you mentioned to the next version of gsh. >Say you have a background process and you want to change a paramater or >something. [..] >That's named pipes as UNIX implements them, isn't it? >Well, most of that stuff is a wish list anyway. The socket interface is probably equivalent in functionality; I've considered named pipes, but sockets are much more flexible and named pipes aren't used anymore, really. >RE: gsh not connected to the kern. >Who intercepts the ORCA Execute call (system() in C). I thought kern took care >of all intercepting of things, but that command sting has to make it to gsh >somehow for parsing and execution... What is there are several shells running? >Who gets the Execute call? The kernel (which handles all other ORCA shell calls) also accepts the Execute call; but there is a kernel call that allows shells to install Execute handlers. So, when gsh starts up it makes this call (SetExecuteVector) so it can handle Execute calls. -- Jawaid Bazyar | Ask me about the GNO Multitasking Environment Procyon, Inc. | for the Apple IIgs! bazyar@cs.uiuc.edu | P.O Box 620334 --Apple II Forever!-- | Littleton, CO 80162-0334 (303) 933-4649
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Newsgroups: comp.sys.apple2.gno Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!zaphod.mps.ohio-state.edu!cs.utexas.edu!sun-barr!ames!ncar!csn!teal!bazyar From: bazyar@teal.csn.org (Jawaid Bazyar) Subject: Re: Shells Message-ID: <bazyar.725580014@teal> Sender: news@csn.org (news) Nntp-Posting-Host: teal.csn.org Organization: Colorado SuperNet, Inc. References: <BzzEGz.73G@CAM.ORG> Date: Mon, 28 Dec 1992 22:00:14 GMT Lines: 35