# HG changeset patch
# User Thinker K.F. Li <thinker@branda.to>
# Date 1236524931 -28800
# Node ID 892f4efe2e48f4d6f44b58978ab0c2660f4c17a3
# Parent  700954870ceefcc8f5b7ac66bf8612cd8c9029a2
Prevent applications from hanging by massive mouse motion events.
- When massive motion events are send by mouse, the application will
  busy for processing events.
- The motion events are aggregated to prevent applicatin from hanging for
  massive mouse motion events.

diff -r 700954870cee -r 892f4efe2e48 src/X_supp.c
--- a/src/X_supp.c	Sun Mar 08 22:45:14 2009 +0800
+++ b/src/X_supp.c	Sun Mar 08 23:08:51 2009 +0800
@@ -177,7 +177,7 @@
 static void handle_x_event(X_MB_runtime_t *rt) {
     Display *display = rt->display;
     redraw_man_t *rdman = rt->rdman;
-    XEvent evt;
+    XEvent evt, peek_evt;
     XMotionEvent *mevt;
     XButtonEvent *bevt;
     XExposeEvent *eevt;
@@ -231,6 +231,17 @@
 	    break;
 
 	case MotionNotify:
+	    while(XEventsQueued(display, QueuedAfterReading) > 0) {
+		r = XPeekEvent(display, &peek_evt);
+		if(r == -1)
+		    break;
+		if(peek_evt.type != MotionNotify)
+		    break;
+		XNextEvent(display, &evt);
+	    }
+	    if(r == -1)
+		break;
+	    
 	    mevt = (XMotionEvent *)&evt;
 	    x = mevt->x;
 	    y = mevt->y;