Added some methods to OSCSender and OSCReceiver to allow them to use existing sockets

modules/juce_osc/osc/juce_OSCReceiver.cpp

@@ -331,13 +331,12 @@ struct OSCReceiver::Pimpl   : private Thread,
     }
 
     //==============================================================================
-    bool connectToPort (int portNum)
+    bool connectToPort (int portNumber)
     {
         if (! disconnect())
             return false;
 
-        portNumber = portNum;
-        socket = new DatagramSocket (false);
+        socket.setOwned (new DatagramSocket (false));
 
         if (! socket->bindToPort (portNumber))
             return false;
@@ -346,14 +345,27 @@ struct OSCReceiver::Pimpl   : private Thread,
         return true;
     }
 
+    bool connectToSocket (DatagramSocket& newSocket)
+    {
+        if (! disconnect())
+            return false;
+
+        socket.setNonOwned (&newSocket);
+        startThread();
+        return true;
+    }
+
     bool disconnect()
     {
         if (socket != nullptr)
         {
             signalThreadShouldExit();
-            socket->shutdown();
+
+            if (socket.willDeleteObject())
+                socket->shutdown();
+
             waitForThreadToExit (10000);
-            socket = nullptr;
+            socket.reset();
         }
         return true;
     }
@@ -567,8 +579,7 @@ private:
     Array<std::pair<OSCAddress, OSCReceiver::ListenerWithOSCAddress<OSCReceiver::MessageLoopCallback>*>> listenersWithAddress;
     Array<std::pair<OSCAddress, OSCReceiver::ListenerWithOSCAddress<OSCReceiver::RealtimeCallback>*>>    realtimeListenersWithAddress;
 
-    ScopedPointer<DatagramSocket> socket;
-    int portNumber = 0;
+    OptionalScopedPointer<DatagramSocket> socket;
     OSCReceiver::FormatErrorHandler formatErrorHandler { nullptr };
     enum { oscBufferSize = 4098 };
 
@@ -590,6 +601,11 @@ bool OSCReceiver::connect (int portNumber)
     return pimpl->connectToPort (portNumber);
 }
 
+bool OSCReceiver::connectToSocket (DatagramSocket& socket)
+{
+    return pimpl->connectToSocket (socket);
+}
+
 bool OSCReceiver::disconnect()
 {
     return pimpl->disconnect();

modules/juce_osc/osc/juce_OSCReceiver.h

@@ -54,6 +54,14 @@ public:
     */
     bool connect (int portNumber);
 
+    /** Connects to a UDP datagram socket that is already set up,
+        and starts listening to OSC packets arriving on this port.
+        Make sure that the object you give it doesn't get deleted while this
+        object is still using it!
+        @returns true if the connection was successful; false otherwise.
+    */
+    bool connectToSocket (DatagramSocket& socketToUse);
+
     //==============================================================================
     /** Disconnects from the currently used UDP port.
         @returns true if the disconnection was successful; false otherwise.

modules/juce_osc/osc/juce_OSCSender.cpp

@@ -215,20 +215,31 @@ struct OSCSender::Pimpl
         if (! disconnect())
             return false;
 
-        socket = new DatagramSocket (true);
+        socket.setOwned (new DatagramSocket (true));
         targetHostName = newTargetHost;
         targetPortNumber = newTargetPort;
 
         if (socket->bindToPort (0)) // 0 = use any local port assigned by the OS.
             return true;
 
-        socket = nullptr;
+        socket.reset();
         return false;
     }
 
+    bool connectToSocket (DatagramSocket& newSocket, const String& newTargetHost, int newTargetPort)
+    {
+        if (! disconnect())
+            return false;
+
+        socket.setNonOwned (&newSocket);
+        targetHostName = newTargetHost;
+        targetPortNumber = newTargetPort;
+        return true;
+    }
+
     bool disconnect()
     {
-        socket = nullptr;
+        socket.reset();
         return true;
     }
 
@@ -273,7 +284,7 @@ private:
     }
 
     //==============================================================================
-    ScopedPointer<DatagramSocket> socket;
+    OptionalScopedPointer<DatagramSocket> socket;
     String targetHostName;
     int targetPortNumber = 0;
 
@@ -298,6 +309,11 @@ bool OSCSender::connect (const String& targetHostName, int targetPortNumber)
     return pimpl->connect (targetHostName, targetPortNumber);
 }
 
+bool OSCSender::connectToSocket (DatagramSocket& socket, const String& targetHostName, int targetPortNumber)
+{
+    return pimpl->connectToSocket (socket, targetHostName, targetPortNumber);
+}
+
 bool OSCSender::disconnect()
 {
     return pimpl->disconnect();

modules/juce_osc/osc/juce_OSCSender.h

@@ -48,23 +48,34 @@ public:
     /** Connects to a datagram socket and prepares the socket for sending OSC
         packets to the specified target.
 
+        Note: the operating system will choose which specific network adapter(s)
+        to bind your socket to, and which local port to use for the sender.
+
         @param  targetHostName   The remote host to which messages will be send.
         @param  targetPortNumber The remote UDP port number on which the host will
                                  receive the messages.
 
         @returns true if the connection was successful; false otherwise.
-
-        Note: the operating system will choose which specific network adapter(s)
-        to bind your socket to, and which local port to use for the sender.
-
         @see send, disconnect.
     */
     bool connect (const String& targetHostName, int targetPortNumber);
 
+	/** Uses an existing datagram socket for sending OSC packets to the specified target.
+
+	    @param  socket           An existing datagram socket. Make sure this doesn't
+                                 get deleted while this class is still using it!
+	    @param  targetHostName   The remote host to which messages will be send.
+	    @param  targetPortNumber The remote UDP port number on which the host will
+	                             receive the messages.
+
+	    @returns true if the connection was successful; false otherwise.
+	    @see connect, send, disconnect.
+	*/
+    bool connectToSocket (DatagramSocket& socket, const String& targetHostName, int targetPortNumber);
+
     //==============================================================================
     /** Disconnects from the currently used UDP port.
         @returns true if the disconnection was successful; false otherwise.
-
         @see connect.
     */
     bool disconnect();