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Date: Mon, 22 Nov 2004 11:06:36 -0500
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: select() read() and write() on /dev/console
Message-ID: <20041122160636.GC31237@trixie.casa.cgf.cx>
Reply-To: cygwin AT cygwin DOT com
References: <Pine DOT LNX DOT 4 DOT 44 DOT 0411191834400 DOT 1687-100000 AT centurai DOT sps DOT mot DOT com> <20041119183842 DOT GB26102 AT trixie DOT casa DOT cgf DOT cx> <loom DOT 20041122T151333-846 AT post DOT gmane DOT org>
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On Mon, Nov 22, 2004 at 02:53:20PM +0000, Jason Curl wrote:
>Christopher Faylor <cgf-no-personal-reply-please <at> cygwin.com> writes:
>>On Fri, Nov 19, 2004 at 06:46:56PM +0100, Jason Curl wrote:
>>>My question, how do I go about investigating what the root cause is?
>>>Has anybody else seen similar issues and been able to work around it?
>>>I'm stuck and I've never seen the source code to cygwin before.
>>
>>If you suspect a problem with the cygwin DLL then you can build a
>>debugging version of the cygwin DLL and debug it using gdb.
>>
>>Most of the console handling is in fhandler_console.cc.  The select
>>handling is in select.cc.  Look for the string "console" there.
>>
>>Instructions for building the DLL are in the FAQ:
>>
>>http://cygwin.com/faq/faq_3.html#SEC101
>
>In the function select.cc (v1.102.2.2): peek_console() there is a
>reference to the function fh->get_readahead_valid().  I don't see how
>'fh' is assigned.

In dtable::select_{read,write,except} .

cgf

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