(isc_accept_callback): Removed the cb_mcb argument.

(isc_write_error_cb): Removed the cb_mcb and user arguments.
(isc_stale_output_cb): Ditto.
(isc_set_read_callback): Removed the user argument.  Use the udg
	field of the isc_scb instead.

src/libraries/libisc-new/src/isc.h

@@ -45,18 +45,13 @@ struct isc_scb;
  */
 
 /* When a new TCP client conntects.  */
-typedef void *isc_accept_callback(struct isc_mcb *cb_mcb,
-				  struct isc_scb *cb_accepting_session,
+typedef void *isc_accept_callback(struct isc_scb *cb_accepting_session,
 				  struct isc_scb *cb_new_session);
 
-typedef void isc_write_error_cb(struct isc_mcb *cb_mcb,
-				struct isc_scb *cb_session,
-				int saved_errno,
-				void *user);
+typedef void isc_write_error_cb(struct isc_scb *cb_session,
+				int saved_errno);
 
-typedef void isc_stale_output_cb(struct isc_mcb *cb_mcb,
-				 struct isc_scb *cb_session,
-				 void *user);
+typedef void isc_stale_output_cb(struct isc_scb *cb_session);
 
 typedef void isc_write_queue_change_cb(int delta_bytes);
 
@@ -164,8 +159,7 @@ isc_set_read_callback(struct isc_scb *session,
 		      oop_call_fd *data_available_cb,
 		      isc_write_error_cb *write_error_cb,
 		      isc_stale_output_cb *stale_output_cb,
-		      isc_stale_output_cb *idle_cb,
-		      void *user);
+		      isc_stale_output_cb *idle_cb);
 
 /*
 ** Dynamically change the acceptable idle timeout of a session.  This