Ge preview, handling of exceptino when runtime not started

src/lib/rt/src/rt_gdb.c

@@ -1125,7 +1125,10 @@ gdb_MapDb (
   /* Map lock sections.  */
 
   gdbroot->lock = sect_Alloc(sts, &created, &gdbroot->h.lock, sizeof(sect_sMutex), gdb_cNameDbLock, 0);
-  if (gdbroot->lock == NULL) errh_Bugcheck(*sts, "mapping db lock");
+  if (gdbroot->lock == NULL) {
+    errh_Fatal("Error mapping db lock\n%m", *sts);
+    pwr_Return(NULL, sts, GDH__DBLOCK);
+  }
   if (created) {
     sect_Free(&lsts, gdbroot->lock); 
     pwr_Return(NULL, sts, GDH__RTNOTSTARTED);

src/msg/rt/src/rt_gdh_msg.msg

@@ -101,6 +101,7 @@ file		<Unable to open file>					/error
 convert		<Unable to convert value>				/error
 readonly	<Object or attribute is read only>			/error
 remotemount	<Remotly mounted object>				/error
+dblock		<Unable to map db lock>					/error
 .end
 
 

xtt/exe/rt_xtt/gtk/rt_xtt_gtk.cpp

@@ -689,6 +689,8 @@ XttGtk::XttGtk( int argc, char *argv[], int *return_sts) :
   char		title[120] = "Xtt ";
   char		nodename[80];
 
+  if ( EVEN(*return_sts)) return;
+
   gtk_init( &argc, &argv);
 
   setlocale( LC_TIME, "en_US");

xtt/exe/rt_xtt/src/xtt_main.cpp

@@ -550,6 +550,8 @@ Xtt::Xtt( int *argc, char **argv[], int *return_sts) :
   static char 	display[80];
   static char   display_opt[20] = "--display";
 
+  *return_sts = XNAV__SUCCESS;
+
   strcpy( opplace_str, "");
   hot_xtt = this;
 

xtt/lib/ge/src/ge.cpp

@@ -755,8 +755,14 @@ void Ge::activate_change_name()
 
 void Ge::activate_preview_start()
 {
-  graph->init_trace();
-  set_title();
+  int sts;
+
+  sts = graph->init_trace();
+  if ( EVEN(sts)) {
+    message( 'E', "Unable to start Preview");
+  }
+  else
+    set_title();
 }
 
 void Ge::activate_preview_stop()