On 17-02-2007 17:25, Evgeniy Polyakov wrote:
> On Fri, Feb 16, 2007 at 09:34:27PM +0300, Evgeniy Polyakov ([EMAIL
> PROTECTED]) wrote:
>> Otherwise we can extend select output mask to include hungup too
>> (getting into account that hungup is actually output event).
>
> This is another possible way to fix select after write after connection
> reset.
I hope you know what you are doing and that this will
change functionality for some users.
In my opinion it looks like a problem with interpretation
and not a bug. From tcp.c:
"
* Some poll() documentation says that POLLHUP is incompatible
* with the POLLOUT/POLLWR flags, so somebody should check this
* all. But careful, it tends to be safer to return too many
* bits than too few, and you can easily break real applications
* if you don't tell them that something has hung up!
...
* Actually, it is interesting to look how Solaris and DUX
* solve this dilemma. I would prefer, if PULLHUP were maskable,
* then we could set it on SND_SHUTDOWN. BTW examples given
* in Stevens' books assume exactly this behaviour, it explains
* why PULLHUP is incompatible with POLLOUT. --ANK
*
* NOTE. Check for TCP_CLOSE is added. The goal is to prevent
* blocking on fresh not-connected or disconnected socket. --ANK
*/"
So it seems ANK hesitated and somebody choose not to do
this - maybe for some reason...
Regards,
Jarek P.
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