Attempt to fix disconnect not respecting linger

Looks like linger is honoured properly, but shutting down the session
causes the pipe termination to come from that side - because the local
pipe then shuts down right away it seems to trigger a terminated on the
other end instead of waiting. This way we trigger the termination from
the local end and then terminate the session.

src/socket_base.cpp

@@ -376,7 +376,7 @@ int zmq::socket_base_t::bind (const char *addr_)
         // Save last endpoint URI
         listener->get_address (last_endpoint);
 
-        add_endpoint (addr_, (own_t *) listener);
+        add_endpoint (addr_, (own_t *) listener, NULL);
         return 0;
     }
 
@@ -395,7 +395,7 @@ int zmq::socket_base_t::bind (const char *addr_)
         // Save last endpoint URI
         listener->get_address (last_endpoint);
 
-        add_endpoint (addr_, (own_t *) listener);
+        add_endpoint (addr_, (own_t *) listener, NULL);
         return 0;
     }
 #endif
@@ -548,6 +548,7 @@ int zmq::socket_base_t::connect (const char *addr_)
     //  PGM does not support subscription forwarding; ask for all data to be
     //  sent to this pipe.
     bool icanhasall = protocol == "pgm" || protocol == "epgm";
+    pipe_t *newpipe = NULL;
 
     if (options.immediate != 1 || icanhasall) {
         //  Create a bi-directional pipe.
@@ -560,6 +561,7 @@ int zmq::socket_base_t::connect (const char *addr_)
 
         //  Attach local end of the pipe to the socket object.
         attach_pipe (new_pipes [0], icanhasall);
+        newpipe = new_pipes [0];
 
         //  Attach remote end of the pipe to the session object later on.
         session->attach_pipe (new_pipes [1]);
@@ -568,15 +570,15 @@ int zmq::socket_base_t::connect (const char *addr_)
     //  Save last endpoint URI
     paddr->to_string (last_endpoint);
 
-    add_endpoint (addr_, (own_t *) session);
+    add_endpoint (addr_, (own_t *) session, newpipe);
     return 0;
 }
 
-void zmq::socket_base_t::add_endpoint (const char *addr_, own_t *endpoint_)
+void zmq::socket_base_t::add_endpoint (const char *addr_, own_t *endpoint_, pipe_t *pipe)
 {
     //  Activate the session. Make it a child of this socket.
     launch_child (endpoint_);
-    endpoints.insert (endpoints_t::value_type (std::string (addr_), endpoint_));
+    endpoints.insert (endpoints_t::value_type (std::string (addr_), endpoint_pipe_t(endpoint_, pipe)));
 }
 
 int zmq::socket_base_t::term_endpoint (const char *addr_)
@@ -631,8 +633,12 @@ int zmq::socket_base_t::term_endpoint (const char *addr_)
         return -1;
     }
 
-    for (endpoints_t::iterator it = range.first; it != range.second; ++it)
-        term_child (it->second);
+    for (endpoints_t::iterator it = range.first; it != range.second; ++it) {
+        //  If we have an associated pipe, terminate it.
+        if (it->second.second != NULL)
+            it->second.second->terminate(false);
+        term_child (it->second.first);
+	}
     endpoints.erase (range.first, range.second);
     return 0;
 }

src/socket_base.hpp

@@ -158,10 +158,11 @@ namespace zmq
 
     private:
         //  Creates new endpoint ID and adds the endpoint to the map.
-        void add_endpoint (const char *addr_, own_t *endpoint_);
+        void add_endpoint (const char *addr_, own_t *endpoint_, pipe_t *pipe);
 
         //  Map of open endpoints.
-        typedef std::multimap <std::string, own_t *> endpoints_t;
+        typedef std::pair <own_t *, pipe_t*> endpoint_pipe_t;
+        typedef std::multimap <std::string, endpoint_pipe_t> endpoints_t;
         endpoints_t endpoints;
 
         //  Map of open inproc endpoints.