1 files changed, 7 insertions, 8 deletions
diff --git a/src/i_engine.hpp b/src/i_engine.hpp
index ea6b850..0ba94f5 100644
--- a/src/i_engine.hpp
+++ b/src/i_engine.hpp
@@ -20,8 +20,6 @@
 #ifndef __ZMQ_I_ENGINE_HPP_INCLUDED__
 #define __ZMQ_I_ENGINE_HPP_INCLUDED__
 
-#include <stddef.h>
-
 namespace zmq
 {
 
@@ -30,18 +28,19 @@ namespace zmq
         virtual ~i_engine () {}
 
         //  Plug the engine to the session.
-        virtual void plug (struct i_inout *inout_) = 0;
+        virtual void plug (class io_thread_t *io_thread_,
+            struct i_inout *inout_) = 0;
 
         //  Unplug the engine from the session.
         virtual void unplug () = 0;
 
-        //  This method is called by the session to signalise that there
-        //  are messages to send available.
-        virtual void revive () = 0;
-
         //  This method is called by the session to signalise that more
         //  messages can be written to the pipe.
-        virtual void resume_input () = 0;
+        virtual void activate_in () = 0;
+
+        //  This method is called by the session to signalise that there
+        //  are messages to send available.
+        virtual void activate_out () = 0;
     };
 
 }