Now you can't use the same syntax as you would for a method to
implement a property as whole, instead you need to specify the
getter and/or setter explicitly. This is to allow parent classes
to expand their properties without altering behavior of the child
classes.
I just realized that if a client is not referenced it would leak in
the 'ssl' server as we must del it.
However, if we del the SSL socket, we're going to close the underlying
TCP. But we're from the TCP "client,add" callback and this causes
issues since "closed" will be emitted, our close callback will
unparent the client, which lead to it being deleted.
The proper solution is to only monitor "closed" if the client is
accepted. Otherwise we just check if it was closed, if we're the
parent, etc...
Fixing this in all servers were painful, we could share since most
inherit from Efl.Net.Server.Fd. Then add the "client_announce"
protected method to do it, and document how it should work.
Efl.Net.Server defines how to accept new connections, doing the
bind(), listen() and accept() for protocols such as TCP.
Efl.Net.Dialer defines to to reach a server.
Both are based on Efl.Net.Socket as communication interface that is
based on Efl.Io.Reader, Efl.Io.Writer and Efl.Io.Closer, thus being
usable with code such as Efl.Io.Copier.
The Server will emit an event "client,add" with the established
Socket, which is a child and can be closed by both the server or the
user.
The Dialer extends the Socket and allows for creating one given an
address, that will be resolved and connected.
TCP is the initial implementation so we an validate the
interfaces. UDP, Unix-Local and SSL will come later as derivate
classes.
The examples are documented and should cover the basic principles:
- efl_io_copier_example can accept "tcp://IP:PORT" and will work as a
"netcat", can send data from socket, file or stdin to a socket,
file, stdout or stderr.
- efl_net_server_example listens for connections and can either reply
"Hello World!" and take some data or work as an echo-server,
looping back all received data to the user.
More complex interactions that require a "chat" between client and
server will be covered with new classes later, such as a queue that
empties itself once data is read.
Daniel Kolesa
Gustavo Sverzut Barbieri
Stefan Schmidt