How to properly manage client disconnection?

[Kevyn-Alexandre Paré]

Hi,

Here the source code of a simple server that accept one client.

When the client disconnect the callback for io is call infinitely with zero bytes recv.

Here the behaviour:

first terminal
1) ./main     
4) <-- READ: 0
5) <-- READ: 0
6) <-- READ: 0
7) <-- READ: 0
8) CTRL+C

second terminal
2) nc localhost 19206
3) CTRL+C


My questions are :

1) Can I assume that if the recv return zero mean that the client have been disconnected?
2) I register SIGPIPE I thought that I will receive a even of it when the clients disconnect but I don't?
3) What is the best way or recommended way to manage the clients disconnections and unregistered the socket from libev?


Best Regards,

-- Kevyn-Alexandre Pare
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