From: Uncle George <netbeans@gatworks.com>
To: davids@webmaster.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: SELECT() returns 1 But FIONREAD says (Input/output error)
Date: Fri, 01 Jun 2007 08:01:09 -0400 [thread overview]
Message-ID: <46600A85.1040905@gatworks.com> (raw)
In-Reply-To: <MDEHLPKNGKAHNMBLJOLKCENHEDAC.davids@webmaster.com>
David Schwartz wrote:
>> In this case what, will reset the "something interesting has happened"
>> report from the SELECT call? Will it ever be reset in this case?
>
> Nope. An errored connection is always ready for read/write -- there is
> nothing to wait for as far as the kernel is concerned. Your code keeps
> asking the kernel if something interesting has happened, the kernel keeps
> telling it yes, and it refuses to do anything about it.
Actually its somewhat of a misreading.
The first sentence of the man pages for select suggests that something
interesting has happened inbetween select()'s.
Later on it states "more precisely, to see if a read will not block",
which is still different from "if characters become available for reading".
The "precisely" fits my issue, and not the others.
next prev parent reply other threads:[~2007-06-01 12:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-31 18:17 SELECT() returns 1 But FIONREAD says (Input/output error) Uncle George
2007-06-01 1:01 ` David Schwartz
2007-06-01 1:53 ` Uncle George
2007-06-01 16:43 ` David Schwartz
2007-06-01 17:07 ` Uncle George
2007-06-01 17:33 ` David Schwartz
2007-06-01 20:04 ` Uncle George
2007-06-01 22:03 ` David Schwartz
2007-06-01 12:01 ` Uncle George [this message]
[not found] <fa.qaWJQn9l1jDV+N9wFv9WqATf44U@ifi.uio.no>
[not found] ` <fa.pq45zUHWQMSHoRGL/M4uTPfFWHg@ifi.uio.no>
2007-06-01 2:48 ` Robert Hancock
2007-06-02 0:02 ` Uncle George
[not found] <8qXzx-jY-31@gated-at.bofh.it>
2007-06-01 12:19 ` Bodo Eggert
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