Date: Wed, 6 Sep 2000 17:53:08 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: "Andrey A. Chernov" <ache@nagual.pp.ru> Cc: Peter van Dijk <peter@dataloss.net>, current@freebsd.org Subject: Re: FIFOs & select: what about our implementation? Message-ID: <Pine.BSF.4.21.0009061714230.25604-100000@besplex.bde.org> In-Reply-To: <20000906004433.A72273@nagual.pp.ru>
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On Wed, 6 Sep 2000, Andrey A. Chernov wrote: > Please consider that we talk not about reads but about select. 'Select' is > used to indicate that data is available while 'read' used to read it, they No, select on a read descriptor returns successfully when the descriptor is "ready" to read, whatever that means. It normally means that a read on the descriptor would not block (even if O_NONBLOCK is not set). Reads of EOF satisfy this condition. This is normally the correct behaviour. E.g., it prevents programs reading stdin via select() loop from hanging when stdin is a pipe with no writers. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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