[Live-devel] Patch to allow derived class of GroupSock to hook on AddDest() and RemoveDest

[o.brunet at free.fr]

Hi all,

The following small patch makes addDestination(), removeDestination() and
output() of GroupSock virtual, to allow the derived class to hook some special
handling (read: locking in a multithreadaed env) easily.

--- G:\Dev\C\live.2005.04.01\live\groupsock\include\Groupsock.hh	Fri Apr 01
02:32:24 2005
+++ G:\Dev\C\live\groupsock\include\Groupsock.hh	Sat Apr 02 23:17:44 2005
@@ -97,8 +97,8 @@

   // As a special case, we also allow multiple destinations (addresses & ports)
   // (This can be used to implement multi-unicast.)
-  void addDestination(struct in_addr const& addr, Port const& port);
-  void removeDestination(struct in_addr const& addr, Port const& port);
+  virtual void addDestination(struct in_addr const& addr, Port const& port);
+  virtual void removeDestination(struct in_addr const& addr, Port const& port);
   void removeAllDestinations();

   struct in_addr const& groupAddress() const {
@@ -116,7 +116,7 @@

   void multicastSendOnly(); // send, but don't receive any multicast packets

-  Boolean output(UsageEnvironment& env, u_int8_t ttl,
+  virtual Boolean output(UsageEnvironment& env, u_int8_t ttl,
 		 unsigned char* buffer, unsigned bufferSize,
 		 DirectedNetInterface* interfaceNotToFwdBackTo = NULL);