Problem: code duplication

Solution: reduced code duplication by introducing local variables and
new function trigger_events

src/select.hpp

@@ -97,7 +97,7 @@ namespace zmq
             fds_set_t ();
             fds_set_t (const fds_set_t& other_);
             fds_set_t& operator=(const fds_set_t& other_);
-            //  Convinient method to descriptor from all sets.
+            //  Convenience method to descriptor from all sets.
             void remove_fd (const fd_t& fd_);
 
             fd_set read;
@@ -133,6 +133,8 @@ namespace zmq
         };
 #endif
 
+        void trigger_events(const fd_entries_t &fd_entries_, const fds_set_t &local_fds_set_, int event_count_);
+
 #if defined ZMQ_HAVE_WINDOWS
         family_entries_t family_entries;
         // See loop for details.