Re: [Boost-users] [asio] Socket closed notification?

Subject: Re: [Boost-users] [asio] Socket closed notification?
From: Andrew Maclean (andrew.amaclean_at_[hidden])
Date: 2009-12-14 22:58:03

Do you have any ideas on how to do this within the ASIO framework?

Andrew

On Tue, Dec 15, 2009 at 2:50 PM, Scott Gifford
<sgifford_at_[hidden]> wrote:
> Jonathan Franklin <franklin.jonathan_at_[hidden]> writes:
>
>> On Mon, Dec 14, 2009 at 10:52 AM, Nicola Michael Gutberlet
>> <nicola.gutberlet_at_[hidden]> wrote:
>>> I’m using TCP sockets and wonder, if there’s a possibility to get an
>>> automatic notification when one side of a socket is closed (even if the
>>> other side is crashed / not closed properly).
>>
>> You generally have to do a read on the socket to reliably detect when
>> the other side has closed (or crashed).
>
> And a write, too, or else use TCP keepalives.  Otherwise a crashed
> client which is never sending anything will not send any error
> indication for you to read.
>
> ----Scott.
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Andrew J. P. Maclean
Centre for Autonomous Systems
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