(STOP_POLLING, RESUME_POLLING): New macros.

(redisplay_internal): Use them.  Do RESUME_POLLING at end of function.

2 files changed, 23 insertions, 3 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 73abc9bdfa4..9a4a0a446ce 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,13 @@
+2002-09-29  Richard M. Stallman  <rms@gnu.org>
+
+        * xdisp.c (STOP_POLLING, RESUME_POLLING): New macros.
+        (redisplay_internal): Use them.  Do RESUME_POLLING at end of function.
+
+2002-09-27  Richard M. Stallman  <rms@gnu.org>
+
+        * keyboard.c (STOP_POLLING, RESUME_POLLING): New macros.
+        (read_char): Use them.  Do all exits thru the end of the function.
+
 2002-09-27  Kenichi Handa  <handa@etl.go.jp>
 
         * xfaces.c (try_font_list): Pay attention to the case that FAMILY
diff --git a/src/xdisp.c b/src/xdisp.c
index 16c351b9f91..64e94a9d6d1 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -8471,6 +8471,14 @@ reconsider_clip_changes (w, b)
         b->clip_changed = 1;
     }
 }
+
+#define STOP_POLLING                                    \
+do { if (! polling_stopped_here) stop_polling ();       \
+       polling_stopped_here = 1; } while (0)
+
+#define RESUME_POLLING                                  \
+do { if (polling_stopped_here) start_polling ();        \
+       polling_stopped_here = 0; } while (0)
 
 
 /* If PRESERVE_ECHO_AREA is nonzero, it means this redisplay is not in
@@ -8491,6 +8499,7 @@ redisplay_internal (preserve_echo_area)
   int number_of_visible_frames;
   int count;
   struct frame *sf = SELECTED_FRAME ();
+  int polling_stopped_here = 0;
 
   /* Non-zero means redisplay has to consider all windows on all
      frames.  Zero means, only selected_window is considered.  */
@@ -8979,7 +8988,7 @@ redisplay_internal (preserve_echo_area)
                      error.  */
                   if (interrupt_input)
                     unrequest_sigio ();
-                  stop_polling ();
+                  STOP_POLLING;
 
                   /* Update the display.  */
                   set_window_update_flags (XWINDOW (f->root_window), 1);
@@ -9035,7 +9044,7 @@ redisplay_internal (preserve_echo_area)
          which can cause an apparent I/O error.  */
       if (interrupt_input)
         unrequest_sigio ();
-      stop_polling ();
+      STOP_POLLING;
 
       if (FRAME_VISIBLE_P (sf) && !FRAME_OBSCURED_P (sf))
         {
@@ -9111,7 +9120,7 @@ redisplay_internal (preserve_echo_area)
      But it is much hairier to try to do anything about that.  */
   if (interrupt_input)
     request_sigio ();
-  start_polling ();
+  RESUME_POLLING;
 
   /* If a frame has become visible which was not before, redisplay
      again, so that we display it.  Expose events for such a frame
@@ -9152,6 +9161,7 @@ redisplay_internal (preserve_echo_area)
 
  end_of_redisplay:
   unbind_to (count, Qnil);
+  RESUME_POLLING;
 }