From 22532b4805c06717cb598e4d232683e0ae38119f Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 18 Jan 2023 16:07:42 +0530
Subject: [PATCH] kitten @: Fix occasional hang until key is pressed while
 waiting for response from terminal

Fixes #5890
---
 tools/tui/loop/read.go | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/tools/tui/loop/read.go b/tools/tui/loop/read.go
index 379c46bd9..a58046d4a 100644
--- a/tools/tui/loop/read.go
+++ b/tools/tui/loop/read.go
@@ -54,11 +54,16 @@ func read_from_tty(pipe_r *os.File, term *tty.Term, results_channel chan<- []byt
 	const bufsize = 2 * utils.DEFAULT_IO_BUFFER_SIZE
 
 	wait_for_read_available := func() {
-		_, err := selector.WaitForever()
-		if err != nil {
-			err_channel <- err
-			keep_going = false
-			return
+		for {
+			n, err := selector.WaitForever()
+			if err != nil {
+				err_channel <- err
+				keep_going = false
+				return
+			}
+			if n > 0 {
+				break
+			}
 		}
 		if selector.IsReadyToRead(pipe_fd) {
 			keep_going = false