From 2e70fee1e9da6ed044b207e9ec03bb5950846ef1 Mon Sep 17 00:00:00 2001
From: erw7 <erw7.github@gmail.com>
Date: Mon, 12 Oct 2020 10:09:36 +0900
Subject: [PATCH] tui: fix problem with uv_tty_set_mode failing due to signal

fixes #12322.
---
 src/nvim/tui/tui.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/nvim/tui/tui.c b/src/nvim/tui/tui.c
index 3158aa0589..62d7dc8b18 100644
--- a/src/nvim/tui/tui.c
+++ b/src/nvim/tui/tui.c
@@ -316,7 +316,13 @@ static void terminfo_start(UI *ui)
 #ifdef WIN32
     uv_tty_set_mode(&data->output_handle.tty, UV_TTY_MODE_RAW);
 #else
-    uv_tty_set_mode(&data->output_handle.tty, UV_TTY_MODE_IO);
+    int retry_count = 10;
+    // A signal may cause uv_tty_set_mode() to fail (e.g., SIGCONT). Retry a
+    // few times. #12322
+    while (uv_tty_set_mode(&data->output_handle.tty, UV_TTY_MODE_IO) == UV_EINTR
+           && retry_count > 0) {
+      retry_count--;
+    }
 #endif
   } else {
     uv_pipe_init(&data->write_loop, &data->output_handle.pipe, 0);