From ab3624c2901007e991efc9624fa8d55c0b15013f Mon Sep 17 00:00:00 2001
From: Mohamed Elawadi <mohamed@elawadi.net>
Date: Fri, 16 Sep 2016 16:24:58 +0200
Subject: [PATCH] call winch_block inside shingetline only if needed

---
 Src/input.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/Src/input.c b/Src/input.c
index eb968ea..7de4e76 100644
--- a/Src/input.c
+++ b/Src/input.c
@@ -142,17 +142,24 @@ shingetline(void)
     char buf[BUFSIZ];
     char *p;
     int q = queue_signal_level();
+    int winch_blocked = 1;
 
     p = buf;
     for (;;) {
-	winch_unblock();
+	if (winch_blocked) {
+		winch_unblock();
+		winch_blocked = 0;
+	}
 	dont_queue_signals();
 	do {
 	    errno = 0;
 	    c = fgetc(bshin);
 	} while (c < 0 && errno == EINTR);
 	if (c < 0 || c == '\n') {
-	    winch_block();
+		if (! winch_blocked) {
+			winch_block();
+			winch_blocked = 1;
+		}
 	    restore_queue_signals(q);
 	    if (c == '\n')
 		*p++ = '\n';
@@ -169,7 +176,10 @@ shingetline(void)
 	} else
 	    *p++ = c;
 	if (p >= buf + BUFSIZ - 1) {
-	    winch_block();
+		if (! winch_blocked) {
+			winch_block();
+			winch_blocked = 1;
+		}
 	    queue_signals();
 	    line = zrealloc(line, ll + (p - buf) + 1);
 	    memcpy(line + ll, buf, p - buf);
-- 
2.5.0