rt_xtt, try/catch added for set_signal_flags

xtt/lib/xtt/src/xtt_xattnav.cpp

@@ -56,6 +56,7 @@
 #include "xtt_item.h"
 #include "pwr_privilege.h"
 #include "cow_wow.h"
+#include "co_error.h"
 
 #define max(Dragon,Eagle) ((Dragon) > (Eagle) ? (Dragon) : (Eagle))
 #define min(Dragon,Eagle) ((Dragon) < (Eagle) ? (Dragon) : (Eagle))
@@ -593,8 +594,11 @@ int XAttNav::trace_scan_bc( brow_tObject object, void *p)
 	// Add signal flags
 	XAttNav *xattnav;
 	brow_GetCtxUserData( brow_GetCtx( item->node), (void **)&xattnav);
+	try {
 	  ((ItemCollect *)item)->set_signal_flags( xattnav->brow);
 	}
+	catch ( co_error& e) {}
+      }
 
       if ( !item->first_scan)
       {

xtt/lib/xtt/src/xtt_xnav.cpp

@@ -2559,8 +2559,11 @@ int XNav::trace_scan_bc( brow_tObject object, void *p)
 	// Add signal flags
 	XNav *xnav;
 	brow_GetCtxUserData( brow_GetCtx( item->node), (void **)&xnav);
+	try {
 	  ((ItemCollect *)item)->set_signal_flags( xnav->brow);
 	}
+	catch ( co_error& e) {}
+      }
 
       if ( !item->first_scan)
       {