Re: [Boost-users] boost::asio close TCP connection cleany

Subject: Re: [Boost-users] boost::asio close TCP connection cleany
From: Marco Piacentini (marcopiacenta_at_[hidden])
Date: 2011-03-22 06:43:47

Thanks...I'm in the second scenario...I don't use async call, so in the client  
I have 2 thread,1 for read and one for write...both inside an infinite loop...

Ok I catch the EOF error...and after?I have to call close, shutdown..?




________________________________
Da: Igor R <boost.lists_at_[hidden]>
A: boost-users_at_[hidden]
Inviato: Mar 22 marzo 2011, 11:31:21
Oggetto: Re: [Boost-users] boost::asio close TCP connection cleany

> Hy..I've seen in the tutorial that client side disconnect is called simply
> by a break in the read loop.
> I would like to know which is the step-by-step instruction to close
> correctly a TCP connection (both server and client side) and where I have to
> put them.
> I've seen the close and shutdown functions, but I don't know where call
> them.

It depends on the structure of your code and on what you do exactly.
For example, if you've got a chain "send-handler-send-...", and you
use shared_from_this idiom, and this chain ends at some stage of your
program -- you shouldn't do anything more, as your connection object
along with its socket will destroy & close automatically, thanks to
the shared_from_this idiom.
OTOH, if your chain is "infinite", eg. it's a receiving socket, which
should always be listening for incoming data -- then you should close
it explicitly by calling socket.close().

> Finally...what I can do when an EOF error happens??

It means that the connection has been closed.
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