Remove some useless virtual method from SocketHandler

louloulibs/network/dns_socket_handler.cpp

@@ -15,10 +15,6 @@ DNSSocketHandler::DNSSocketHandler(std::shared_ptr<Poller> poller,
 {
 }
 
-void DNSSocketHandler::connect()
-{
-}
-
 void DNSSocketHandler::on_recv()
 {
   // always stop watching send and read events. We will re-watch them if the
@@ -40,11 +36,6 @@ bool DNSSocketHandler::is_connected() const
   return true;
 }
 
-bool DNSSocketHandler::is_connecting() const
-{
-  return false;
-}
-
 void DNSSocketHandler::remove_from_poller()
 {
   if (this->poller->is_managing_socket(this->socket))

louloulibs/network/dns_socket_handler.hpp

@@ -31,16 +31,10 @@ public:
    */
   void on_recv() override final;
   void on_send() override final;
-  /**
-   * Do nothing, because we are always considered to be connected, since the
-   * connection is done by c-ares and not by us.
-   */
-  void connect() override final;
   /**
    * Always true, see the comment for connect()
    */
   bool is_connected() const override final;
-  bool is_connecting() const override final;
   void remove_from_poller();
 
 private:

louloulibs/network/socket_handler.hpp

@@ -20,11 +20,10 @@ public:
   SocketHandler& operator=(const SocketHandler&) = delete;
   SocketHandler& operator=(SocketHandler&&) = delete;
 
-  virtual void on_recv() = 0;
-  virtual void on_send() = 0;
-  virtual void connect() = 0;
+  virtual void on_recv() {}
+  virtual void on_send() {}
+  virtual void connect() {}
   virtual bool is_connected() const = 0;
-  virtual bool is_connecting() const = 0;
 
   socket_t get_socket() const
   { return this->socket; }

louloulibs/network/tcp_client_socket_handler.hpp

@@ -24,7 +24,7 @@ class TCPClientSocketHandler: public TCPSocketHandler
    */
   virtual void on_connected() = 0;
   bool is_connected() const override;
-  bool is_connecting() const;
+  bool is_connecting() const override;
 
   std::string get_port() const;
 

louloulibs/network/tcp_server_socket.hpp

@@ -63,20 +63,8 @@ class TcpSocketServer: public SocketHandler
   {
     this->poller->add_socket_handler(this);
   }
-  void on_send() override
-  {
-    assert(false);
-  }
-  void connect() override
-  {
-    assert(false);
-  }
   bool is_connected() const override
   {
     return true;
   }
-  bool is_connecting() const override
-  {
-    return false;
-  }
 };

louloulibs/network/tcp_socket_handler.hpp

@@ -105,6 +105,7 @@ private:
 
 #ifdef BOTAN_FOUND
  protected:
+  virtual bool is_connecting() const = 0;
   /**
    * Create the TLS::Client object, with all the callbacks etc. This must be
    * called only when we know we are able to send TLS-encrypted data over