Re: [Libevent-users] What is the best way to detect a client socket disconnect?

[Kevin Bowling <kevin.bowling@xxxxxxxxxx>]

On Tue, Nov 23, 2010 at 10:53 PM, Ken Feng <kfmfe04@xxxxxxxxx> wrote:

Within libevent, of course.  As a point of reference, let's say we
start up the TCP Echo server that is in Nick's book here:
http://www.wangafu.net/~nickm/libevent-book/Ref8_listener.html

I could handle a normal client shutdown by sending a special shutdown
sequence from client to server, but what about connection lost?  What
is the best way for the server to detect this state?  Can I do it
without pinging the client?

Thanks in advance.

- Ken
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Are you using buffer events?  If so, in your errorcb look for BEV_EVENT_EOF, BEV_EVENT_ERROR, and BEV_EVENT_TIMEOUT.  Free the context pointer and call bufferevent_free().