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- Newsgroups: comp.sys.apple2
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!csn!teal!bazyar
- From: bazyar@teal.csn.org (Jawaid Bazyar)
- Subject: Re: re-entrant programs
- Message-ID: <bazyar.724922549@teal>
- Sender: news@csn.org (news)
- Nntp-Posting-Host: teal.csn.org
- Organization: Colorado SuperNet, Inc.
- References: <BzIxqD.9Ln@griffin.cuc.ab.ca> <behrenss.724868406@hphalle6>
- Date: Mon, 21 Dec 1992 07:22:29 GMT
- Lines: 17
-
- behrenss@Informatik.TU-Muenchen.DE (Soenke Behrens) writes:
-
- >> o What are some examples of re-entrant software?
-
- >Unix kernals.
-
- Not in general. Unix kernels usually shut down certain interrupts
- rather than be forced to code with semaphores or other mutex operations.
- Having had several long glances at the BSD 4.3 source, for example,
- makes me wonder if they indeed have ever heard of semaphores :)
- (But I jest; in some places you can't afford a context switch).
-
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- Jawaid Bazyar | Ask me about the GNO Multitasking Environment
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