From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jonatan Schlag <jonatan.schlag@ipfire.org>
To: network@lists.ipfire.org
Subject: [PATCH 1/7] util: add lock/unlock function
Date: Mon, 19 Jun 2017 21:20:44 +0200
Message-ID: <1497900050-27692-1-git-send-email-jonatan.schlag@ipfire.org>
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This function easily lock or unlock a file.

Signed-off-by: Jonatan Schlag <jonatan.schlag(a)ipfire.org>
---
 src/functions/functions.util | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/functions/functions.util b/src/functions/functions.util
index 4b6f956..23e5a4b 100644
--- a/src/functions/functions.util
+++ b/src/functions/functions.util
@@ -738,3 +738,17 @@ hex2dec() {
 dec2hex() {
 	printf "%02x\n" "${1}"
 }
+
+lock_file() {
+	assert [ $# -eq 1 ]
+	local file=${1}
+
+	touch "${file}.lock"
+}
+
+unlock_file() {
+	assert [ $# -eq 1 ]
+	local file=${1}
+
+	rm -f "${file}.lock"
+}
-- 
2.6.3


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