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From: Eijiro Sumii <eijiro_sumii@anet.ne.jp>
To: caml-list@inria.fr
Cc: sumii@saul.cis.upenn.edu
Subject: select (or polling) on in_channel?
Date: Thu, 31 Mar 2005 18:28:55 -0500 (EST)	[thread overview]
Message-ID: <20050331.182855.07449233.eijiro_sumii@anet.ne.jp> (raw)

Hi again...

Is there any easy way to _correctly_ do a "select" (as in the UNIX
system call) on Pervasives.in_channel?  My naive approach

  Unix.select [Unix.descr_of_in_channel ic] [] [] 0.

seems to fail (and it indeed does fail) because of the buffering
inside Pervasives.in_channel, as long as I checked the source code of
ocaml-3.08.3.  Pervasives.in_channel_length doesn't help in my case
since the input channel is not a file.  Should I use only the
low-level functions in the Unix module if I _ever_ want "select"?

Thanks,

--
Eijiro Sumii (http://www.cis.upenn.edu/~sumii/)
Department of Computer and Information Science, University of Pennsylvania


             reply	other threads:[~2005-03-31 23:29 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-31 23:28 Eijiro Sumii [this message]
2005-04-01 10:59 ` [Caml-list] " Gerd Stolpmann
2005-04-01 13:37   ` Eijiro Sumii
2005-04-03 14:43 ` Christoph Bauer
2005-04-04 20:24   ` Eijiro Sumii
2005-04-04 21:29     ` Eijiro Sumii
2005-04-05  5:49     ` Alex Baretta
2005-04-05 13:34       ` Eijiro Sumii
2005-04-05 14:14         ` Alex Baretta
2005-04-05 18:07           ` Eijiro Sumii
2005-04-05 14:30         ` Richard Jones
2005-04-05 18:12           ` Eijiro Sumii

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