1 files changed, 7 insertions, 0 deletions
diff --git a/screen-locker.sh b/screen-locker.sh
index 51b6110..b1fb594 100755
--- a/screen-locker.sh
+++ b/screen-locker.sh
@@ -1,5 +1,12 @@
 #!/bin/bash
 
+lock="$HOME/.screen-locker.lck"
+exec 9>"${lock}"
+if ! flock -n 9; then
+	logger "screen locker lock already locked"
+	exit
+fi
+
 if pidof i3lock &> /dev/null; then exit 1; fi
 
 revert() {