Date: Sun, 11 May 1997 13:00:02 -0500 (EST) From: "John S. Dyson" <toor@dyson.iquest.net> To: andrew@erlenstar.demon.co.uk (Andrew Gierth) Cc: toor@dyson.iquest.net, freebsd-hackers@FreeBSD.ORG Subject: Re: socketpair() Message-ID: <199705111800.NAA08334@dyson.iquest.net> In-Reply-To: <87rafene42.fsf@erlenstar.demon.co.uk> from Andrew Gierth at "May 11, 97 05:54:37 pm"
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> > As far as I can tell, though, bidirectional pipes are still pretty much > confined to SVR4 (STREAMS pipes) and FreeBSD; most of the other flavours > I've encountered still use unidirectional pipes (at least by default; > some, like HP-UX 10.10, have a switch for it in the kernel parameters). > > In other words, having support for bidirectional pipes is nice, but > relying on them will probably get you into trouble. > > Is there actually any good reason for having bidirectional pipes, other > than for coping with code ported from SVR4? > I am neutral on them. Since they were cheap to add (someone else originally made our pipes bidirectional), I can't see a reason for not having them, except perhaps those who port from FreeBSD to other OSes. Whatever whomever added them wants, I'll be happy with the decision. Johnhome | help
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