initial version of req/rep sockets

src/sub.hpp

@@ -24,6 +24,7 @@
 #include <string>
 
 #include "socket_base.hpp"
+#include "yarray.hpp"
 
 namespace zmq
 {
@@ -35,14 +36,38 @@ namespace zmq
         sub_t (class app_thread_t *parent_);
         ~sub_t ();
 
-        //  Overloads of API functions from socket_base_t.
-        int setsockopt (int option_, const void *optval_, size_t optvallen_);
-        int send (struct zmq_msg_t *msg_, int flags_);
-        int flush ();
-        int recv (struct zmq_msg_t *msg_, int flags_);
+    protected:
+
+        //  Overloads of functions from socket_base_t.
+        bool xrequires_in ();
+        bool xrequires_out ();
+        void xattach_pipes (class reader_t *inpipe_, class writer_t *outpipe_);
+        void xdetach_inpipe (class reader_t *pipe_);
+        void xdetach_outpipe (class writer_t *pipe_);
+        void xkill (class reader_t *pipe_);
+        void xrevive (class reader_t *pipe_);
+        int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
+        int xsend (struct zmq_msg_t *msg_, int flags_);
+        int xflush ();
+        int xrecv (struct zmq_msg_t *msg_, int flags_);
 
     private:
 
+        //  Helper function to return one message choosed using
+        //  fair queueing algorithm.
+        int fq (struct zmq_msg_t *msg_, int flags_);
+
+        //  Inbound pipes, i.e. those the socket is getting messages from.
+        typedef yarray_t <class reader_t> in_pipes_t;
+        in_pipes_t in_pipes;
+
+        //  Number of active inbound pipes. Active pipes are stored in the
+        //  initial section of the in_pipes array.
+        in_pipes_t::size_type active;
+
+        //  Index of the next inbound pipe to read messages from.
+        in_pipes_t::size_type current;
+
         //  Number of active "*" subscriptions.
         int all_count;
 
@@ -52,6 +77,9 @@ namespace zmq
 
         //  List of all exact match subscriptions.
         subscriptions_t topics;
+
+        sub_t (const sub_t&);
+        void operator = (const sub_t&);
     };
 
 }