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-rw-r--r--src/history/history.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/history/history.c b/src/history/history.c
index ad917e65ba08d..b94fbb7b3fdfc 100644
--- a/src/history/history.c
+++ b/src/history/history.c
@@ -1,9 +1,9 @@
/*
* *****************************************************************************
*
- * Copyright (c) 2018-2020 Gavin D. Howard and contributors.
+ * SPDX-License-Identifier: BSD-2-Clause
*
- * All rights reserved.
+ * Copyright (c) 2018-2020 Gavin D. Howard and contributors.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -47,8 +47,6 @@
* Copyright (c) 2010-2016, Salvatore Sanfilippo <antirez at gmail dot com>
* Copyright (c) 2010-2013, Pieter Noordhuis <pcnoordhuis at gmail dot com>
*
- * All rights reserved.
- *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
@@ -482,15 +480,17 @@ static void bc_history_enableRaw(BcHistory *h) {
static void bc_history_disableRaw(BcHistory *h) {
+ sig_atomic_t lock;
+
// Don't even check the return value as it's too late.
if (!h->rawMode) return;
- BC_SIG_LOCK;
+ BC_SIG_TRYLOCK(lock);
if (BC_ERR(tcsetattr(STDIN_FILENO, TCSAFLUSH, &h->orig_termios) != -1))
h->rawMode = false;
- BC_SIG_UNLOCK;
+ BC_SIG_TRYUNLOCK(lock);
}
/**