interface Efl.Net.Server {
    [[The basic server interface.

      It will start serving and accepting clients once @.serve is
      called and the "serving" event is dispatched.

      When new clients are accepted, then "client,add" event is
      dispatched with a child object implementing @Efl.Net.Socket
      interface. These implement the standard @Efl.Io.Reader,
      @Efl.Io.Writer and @Efl.Io.Closer interfaces, thus can be used
      with utilities such as @Efl.Io.Copier.

      @since 1.19
    ]]

    events {
        client,add @hot: Efl.Net.Socket; [[A new client socket was created.

                                           The socket will have the
                                           server as parent and can be
                                           closed by both the server
                                           or the user using
                                           @Efl.Io.Closer.
                                         ]]
        client,rejected: string; [[Notifies a client was rejected due
                                   excess, see @.clients_limit.
                                 ]]

        error: Eina.Error; [[Some error happened and the server needs
                             to be stopped.
                           ]]
        serving; [[Notifies the server is ready to accept clients.
                   See property @.serving]]
    }

    methods {
        serve {
            [[Starts serving requests.

              This method starts the server, resolving address and
              then proceeding to the actual listen(2)/bind(2)
              equivalent..

              Once the connection is fully setup, "serving" event is
              dispatched.
            ]]
            params {
                address: string @nonull; [[Address to run server on]]
            }
            return: Eina.Error; [[0 on success, error code otherwise]]
        }

        @property address {
            [[The address the server is bound to.

              The actual value depends on the type of server, like an
              IPv4 (ip:port) or IPv6 ([ip]:port) formatted for a
              TCP/UDP server, the path if an Unix Local...

              It's always resolved, then if operations are working
              with domain names or URL, this is the values the kernel
              reports. It's similar to getsockname() in behavior.
            ]]
            get { }
            set @protected { }
            values {
                address: string; [[Address the server is bound to]]
            }
        }

        @property clients_count {
            [[Number of concurrent clients accepted by this server.]]
            get { }
            set @protected { }
            values {
                count: uint; [[Number of connected clients]]
            }
        }

        @property clients_limit {
            [[Number of maximum concurrent clients allowed by this server.

              If reject_excess is set to true, then the connection
              will be accepted and immediately closed.

              If reject_excess is set to false (default), then
              accept(2) won't be called and clients will be queued at
              the kernel side, usually up to 4096 pending clients.

              Whenever changed, this property will only apply to new
              connections, that is, if the current connection count
              alredy exceeds the limit, no connections will be closed.
            ]]
            values {
                limit: uint; [[Number of allowed client connections]]
                reject_excess: bool @optional; [[If $true connection is accepted and immediately closed]]
            }
        }

        client_announce @protected {
            [[Implementions should call this method to announce new clients.

              This method will account the new client in
              @.clients_count as well as emit the event "client,add".

              After this call, the client ownership will be
              managed. If no event handler references the object, it
              will be deleted.

              Most implementions will do the sequence:

               - emit "client,add"

               - check if client was referenced

               - if we're not the parent anymore, ignore (do not
                 change @.clients_count) and return $true.

               - if not referenced, delete it and return $false.

               - if it's closed, delete it and return $false.

               - if referenced, increment @.clients_count and monitor
                 for client "closed" event and return $true.

               - on client "closed", decrease @.clients_count and
                 unset its parent (if we're still the parent).

              Do not monitor "closed" before emitting
              "client,add". Doing so may lead to double free if
              callbacks close the client by themselves!
            ]]
            params {
                client: Efl.Net.Socket; [[A socket representing the client.]]
            }
            return: bool(false); [[If $true, then client was handled. If $false, it was dropped and deleted.]]
        }

        @property serving {
            [[Returns whenever the server is ready to accept clients or not.

              Whenever this property becomes true, "serving" event
              should be dispatched.
            ]]
            get { }
            set @protected { }
            values {
                serving: bool; [[$true if server is ready to accept connections, $false otherwise]]
            }
        }
    }
}