From d4242177daaee9078245570125c5a99e65f55163 Mon Sep 17 00:00:00 2001
From: Eli Zaretskii <eliz@gnu.org>
Date: Sat, 7 Nov 2020 11:19:44 +0200
Subject: [PATCH] Fix 'send-string-to-terminal' writing very long strings
* src/dispnew.c (Fsend_string_to_terminal): Prevent partial writes
by blocking SIGIO while 'fwrite' runs. (Bug#44320)
---
src/dispnew.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/dispnew.c b/src/dispnew.c
index 5b6fa51a563..df55b32c718 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -5904,8 +5904,12 @@ when TERMINAL is nil. */)
}
out = tty->output;
}
+ /* STRING might be very long, in which case fwrite could be
+ interrupted by SIGIO. So we temporarily block SIGIO. */
+ unrequest_sigio ();
fwrite (SDATA (string), 1, SBYTES (string), out);
fflush (out);
+ request_sigio ();
unblock_input ();
return Qnil;
}
--
2.39.5