* layout.c (init_curses) [!HAVE_SLANG]: Set ESCDELAY to 200ms.

If ESCDELAY is 0, ncurses 5.2 may stop recognizing escape
sequences under heavy CPU load.

src/ChangeLog

@@ -1,3 +1,9 @@
+2002-12-20  Pavel Roskin  <proski@gnu.org>
+
+	* layout.c (init_curses) [!HAVE_SLANG]: Set ESCDELAY to 200ms.
+	If ESCDELAY is 0, ncurses 5.2 may stop recognizing escape
+	sequences under heavy CPU load.
+
 2002-12-19  Pavel Roskin  <proski@gnu.org>
 
 	* screen.c (chdir_other_panel): Use do_panel_cd() on the

src/TODO

@@ -1,9 +1,6 @@
 Before 4.6.0-pre2
 =================
 
-ncurses 5.2 turns off keypad under heavy load on xterm.  Check if
-anything can be done about it.
-
 ftp and fish with home != '/' - readjust directory to the home.
 
 Allow modifiers for keys in mc.lib, like "shift-up".

src/layout.c

@@ -587,10 +587,15 @@ void init_curses (void)
     initscr();
 #ifdef HAVE_ESCDELAY
     /*
-     * If ncurses exports the ESCDELAY variable it should be set to 0
+     * If ncurses exports the ESCDELAY variable, it should be set to
-     * or you'll have to press Esc three times to dismiss a dialog box.
+     * a low value, or you'll experience a delay in processing escape
+     * sequences that are recognized by mc (e.g. Esc-Esc).  On the other
+     * hand, making ESCDELAY too small can result in some sequences
+     * (e.g. cursor arrows) being reported as separate keys under heavy
+     * processor load, and this can be a problem if mc hasn't learned
+     * them in the "Learn Keys" dialog.  The value is in milliseconds.
      */
-    ESCDELAY = 0;
+    ESCDELAY = 200;
 #endif /* HAVE_ESCDELAY */
     do_enter_ca_mode ();
     mc_raw_mode ();