GNU bug report logs - #3225
session manager hang due to block on ice_fd (failure to check for EINTR in select)

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From: Karl Tomlinson <karlt <at> karlt.net>
To: Glenn Morris <rgm <at> gnu.org>
Cc: Karl Tomlinson <bugs+emacs <at> karlt.net>, 3225 <at> debbugs.gnu.org
Subject: bug#3225: session manager hang due to block on ice_fd (failure to check for EINTR in select)
Date: Thu, 06 Oct 2011 12:54:53 +1300

Glenn Morris writes:

> Karl Tomlinson wrote:
>
>> x_session_check_input in xmsfns.c has this code:
>>
>>   if (select (ice_fd+1, &read_fds,
>>               (SELECT_TYPE *)0, (SELECT_TYPE *)0, &tmout) < 0)
>>     {
>>       ice_fd = -1;
>>       return 0;
>>     }
>>
>> So ice_fd is set to -1 when select returns due to a signal
>> (with errno == EINTR).  This leaves the fd open but prevents
>> further processing.
>
> Sorry for the delay. Is this still an issue? The current code does not
> look like that.

I haven't tested, but it looks like this should be fixed by
http://bzr.savannah.gnu.org/lh/emacs/trunk/revision/103065

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