flowtop: Minimize delay via halfdelay(1) function

Use halfdelay(1) to poll keyboard input with delay in 1 tenth of second
and get rid of custom usleep(...) using.

With this approach (it is also used in htop tool) the key events are more
sensitive to user inputs.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 1 insertions, 2 deletions

diff --git a/flowtop.c b/flowtop.c
index f382d6c..f48f5c8 100644
--- a/flowtop.c
+++ b/flowtop.c
@@ -1238,6 +1238,7 @@ static void presenter(void)
 
 	screen = screen_init(false);
 	wclear(screen);
+	halfdelay(1);
 
 	start_color();
 	INIT_COLOR(RED, BLACK);
@@ -1320,8 +1321,6 @@ static void presenter(void)
 			draw_flows(screen, &flow_list, skip_lines);
 
 		draw_footer();
-
-		usleep(80000);
 	}
 	rcu_unregister_thread();