Removed is_connected flag in fr::Socket

The socket descriptor is now checked, to see if it's greater than 0, instead. This means that the flag doesn't have to be manually updated.

include/frnetlib/SSLSocket.h

@@ -98,6 +98,16 @@ namespace fr
             abort();
         }
 
+        /*!
+         * Checks to see if we're connected to a socket or not
+         *
+         * @return True if it's connected. False otherwise.
+         */
+        inline virtual bool connected() const override final
+        {
+            return ssl_socket_descriptor->fd > -1;
+        }
+
     private:
         std::shared_ptr<SSLContext> ssl_context;
 

include/frnetlib/Socket.h

@@ -131,10 +131,7 @@ namespace fr
          *
          * @return True if it's connected. False otherwise.
          */
-        inline bool connected() const
-        {
-            return is_connected;
-        }
+         virtual bool connected() const =0;
 
         /*!
          * Gets the socket descriptor.
@@ -162,6 +159,7 @@ namespace fr
          */
         void set_inet_version(IP version);
     protected:
+
         /*!
          * Applies requested socket options to the socket.
          * Should be called when a new socket is created.
@@ -170,7 +168,6 @@ namespace fr
 
         std::string remote_address;
         bool is_blocking;
-        bool is_connected;
         std::mutex outbound_mutex;
         std::mutex inbound_mutex;
         int ai_family;

include/frnetlib/TcpSocket.h

@@ -93,6 +93,16 @@ public:
      */
     int32_t get_socket_descriptor() const override;
 
+    /*!
+     * Checks to see if we're connected to a socket or not
+     *
+     * @return True if it's connected. False otherwise.
+     */
+    inline virtual bool connected() const override final
+    {
+        return socket_descriptor > -1;
+    }
+
 protected:
     int32_t socket_descriptor;
 };

src/SSLSocket.cpp

@@ -4,6 +4,8 @@
 
 #include "frnetlib/SSLSocket.h"
 #include <memory>
+#include <mbedtls/net_sockets.h>
+
 #ifdef SSL_ENABLED
 
 namespace fr
@@ -27,13 +29,12 @@ namespace fr
 
     void SSLSocket::close_socket()
     {
-        if(is_connected)
+        if(ssl_socket_descriptor->fd > -1)
         {
             if(ssl)
                 mbedtls_ssl_close_notify(ssl.get());
             if(ssl_socket_descriptor)
                 mbedtls_net_free(ssl_socket_descriptor.get());
-            is_connected = false;
         }
     }
 
@@ -44,7 +45,7 @@ namespace fr
         {
             if(error != MBEDTLS_ERR_SSL_WANT_READ && error != MBEDTLS_ERR_SSL_WANT_WRITE)
             {
-                is_connected = false;
+                close_socket();
                 return Socket::Status::Disconnected;
             }
         }
@@ -64,7 +65,7 @@ namespace fr
 
         if(read == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY)
         {
-            is_connected = false;
+            close_socket();
             return Socket::Status::Disconnected;
         }
         else if(read <= 0)
@@ -136,7 +137,6 @@ namespace fr
         }
 
         //Update state
-        is_connected = true;
         remote_address = address + ":" + port;
         reconfigure_socket();
 
@@ -150,7 +150,6 @@ namespace fr
 
     void SSLSocket::set_net_context(std::unique_ptr<mbedtls_net_context> context)
     {
-        is_connected = true;
         ssl_socket_descriptor = std::move(context);
         reconfigure_socket();
     }

src/Socket.cpp

@@ -16,7 +16,6 @@ namespace fr
 
     Socket::Socket() noexcept
     : is_blocking(true),
-      is_connected(false),
       ai_family(AF_UNSPEC)
     {
             if(instance_count == 0)
@@ -38,7 +37,7 @@ namespace fr
 
     Socket::Status Socket::send(Packet &packet)
     {
-        if(!is_connected)
+        if(!connected())
             return Socket::Disconnected;
 
         std::string &data = packet.get_buffer();
@@ -47,7 +46,7 @@ namespace fr
 
     Socket::Status Socket::send(Packet &&packet)
     {
-        if(!is_connected)
+        if(!connected())
             return Socket::Disconnected;
 
         std::string &data = packet.get_buffer();
@@ -56,7 +55,7 @@ namespace fr
 
     Socket::Status Socket::receive(Packet &packet)
     {
-        if(!is_connected)
+        if(!connected())
             return Socket::Disconnected;
 
         Socket::Status status;
@@ -81,7 +80,7 @@ namespace fr
 
     Socket::Status Socket::receive_all(void *dest, size_t buffer_size)
     {
-        if(!is_connected)
+        if(!connected())
             return Socket::Disconnected;
 
         ssize_t bytes_remaining = buffer_size;

src/TcpSocket.cpp

@@ -9,6 +9,7 @@ namespace fr
 {
 
     TcpSocket::TcpSocket() noexcept
+    : socket_descriptor(-1)
     {
 
     }
@@ -40,10 +41,10 @@ namespace fr
 
     void TcpSocket::close_socket()
     {
-        if(is_connected)
+        if(socket_descriptor > -1)
         {
             ::closesocket(socket_descriptor);
-            is_connected = false;
+            socket_descriptor = -1;
         }
     }
 
@@ -80,7 +81,6 @@ namespace fr
     {
         reconfigure_socket();
         socket_descriptor = descriptor;
-        is_connected = true;
     }
 
     Socket::Status TcpSocket::connect(const std::string &address, const std::string &port)
@@ -124,7 +124,6 @@ namespace fr
         freeaddrinfo(info);
 
         //Update state now we've got a valid socket descriptor
-        is_connected = true;
         remote_address = address + ":" + port;
         reconfigure_socket();