Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!munnari.oz.au!metro!cluster!necisa!boyd
From: boyd@necisa.ho.necisa.oz (Boyd Roberts)
Newsgroups: comp.unix.questions
Subject: Re: reliable reads from pipes
Message-ID: <1827@necisa.ho.necisa.oz>
Date: 13 Aug 90 05:30:19 GMT
References: <1990Aug3.233256.29659@NCoast.ORG> <712@tetrauk.UUCP> <11155@alice.UUCP>
Organization: NEC Information Systems Australia Pty. Ltd.
Lines: 16

In article <11155@alice.UUCP> andrew@alice.UUCP (Andrew Hume) writes:
>
>	lest anyone start relying on reads returning whatever is in the pipe,
>9th edition and later unices preserved the size of the writes which can
>now also exceed the size of the pipe buffer (i think).

Not to mention the 1 byte write nasty that will take out all your
stream message buffers.  The stream pipe fills when the write
side high water mark is hit; which is tunable.

Those M_DELIM's are neat...


Boyd Roberts			boyd@necisa.ho.necisa.oz.au

``When the going gets wierd, the weird turn pro...''