top: fix an improper behavior following a SIGWINCH bug <=== port of newlib 9d999370

______________________________ original newlib message
----------------------------------- ( minus git hash )

When top was made more responsive to keyboard input in
that commit referenced below, his previous response to
a SIGWINCH was upset. Formerly, that display integrity
was restored with the next refresh cycle. But, without
this patch, one must strike some key to accomplish it.

[ in truth, this patch vastly improves that sigwinch ]
[ response. whereas before, although integrity would ]
[ be restored automatically, it did not happen until ]
[ the next regular refresh. now it is instantaneous! ]

Reference(s):
. May, 2022 - made more responsive to kdb input
commit ........................................

Signed-off-by: Jim Warner <james.warner@comcast.net>

diff --git a/top/top.c b/top/top.c
index 8ae05215c42a9c2618f1f3363346214d8b25b94d..eab1735e4b1d44289410ae8f705328eeee79e460 100644 (file)
--- a/top/top.c
+++ b/top/top.c
@@ -7244,7 +7244,7 @@ int main (int argc, char *argv[]) {
 
       if (0 < Loops) --Loops;
       if (!Loops) bye_bye(NULL);
-      if (Frames_signal) { Frames_signal = BREAK_off; continue; }
+      if (Frames_signal) { Frames_signal = BREAK_off; zap_fieldstab(); continue; }
 
       ts.tv_sec = Rc.delay_time;
       ts.tv_nsec = (Rc.delay_time - (int)Rc.delay_time) * 1000000000;