Article View: comp.bugs.sys5
Article #1098Re: What's a system call ( Was: 'what' doesn't use perror...)
From: Guy Harris
Date: Wed, 10 May 1989 07:54
Date: Wed, 10 May 1989 07:54
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>Actually, a system call is an entry point which is a one-for-one mapping to a >particular kernel service. Open(2) is a system call which returns a file >descriptor, which is a kernel data structure. On *some* implementations of the UNIX system interface, "open" is a system call which returns a file descriptor, which is a kernel data structure. I don't think it is in Apollo's DOMAIN/OS (or is that "Domain/OS"?) implementation, for example.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!uunet!auspex!guy From: guy@auspex.auspex.com (Guy Harris) Newsgroups: comp.bugs.sys5 Subject: Re: What's a system call ( Was: 'what' doesn't use perror...) Message-ID: <1603@auspex.auspex.com> Date: 10 May 89 07:54:35 GMT References: <3759@sugar.hackercorp.com> <10156@smoke.BRL.MIL> <1153@aplcen.apl.jhu.edu> <1350@frog.UUCP> <11506@ulysses.homer.nj.att.com> Reply-To: guy@auspex.auspex.com (Guy Harris) Organization: Auspex Systems, Santa Clara Lines: 8