Date: Thu, 14 Nov 1996 17:27:43 -0800 From: John Polstra <jdp@polstra.com> To: Terry Lambert <terry@lambert.org> Cc: scrappy@ki.net, jgreco@brasil.moneng.mei.com, hackers@FreeBSD.ORG Subject: Re: Sockets question... Message-ID: <199611150127.RAA11283@austin.polstra.com> In-Reply-To: Your message of "Thu, 14 Nov 1996 18:12:13 MST." <199611150112.SAA25075@phaeton.artisoft.com> References: <199611150112.SAA25075@phaeton.artisoft.com>
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> If you don't use non-blocking I/O, the read will block until the
> buffer is full. Use blocking I/O, and you won't have the problem
> with the reader returning before it should (or shouldn't).
This is most certainly not guaranteed by the documentation. From
read(2):
The system guarantees to read the number of bytes requested
if the descriptor references a normal file that has that many
bytes left before the end-of-file, but in no other case.
John
--
John Polstra jdp@polstra.com
John D. Polstra & Co., Inc. Seattle, Washington USA
"Self-knowledge is always bad news." -- John Barth
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