1 files changed, 23 insertions, 0 deletions
diff --git a/vendor/github.com/sevlyar/go-daemon/lock_file_unix.go b/vendor/github.com/sevlyar/go-daemon/lock_file_unix.go
new file mode 100644
index 0000000..4215a8c
--- /dev/null
+++ b/vendor/github.com/sevlyar/go-daemon/lock_file_unix.go
@@ -0,0 +1,23 @@
+// +build darwin dragonfly freebsd linux netbsd openbsd plan9
+
+package daemon
+
+import (
+	"syscall"
+)
+
+func lockFile(fd uintptr) error {
+	err := syscall.Flock(int(fd), syscall.LOCK_EX|syscall.LOCK_NB)
+	if err == syscall.EWOULDBLOCK {
+		err = ErrWouldBlock
+	}
+	return err
+}
+
+func unlockFile(fd uintptr) error {
+	err := syscall.Flock(int(fd), syscall.LOCK_UN)
+	if err == syscall.EWOULDBLOCK {
+		err = ErrWouldBlock
+	}
+	return err
+}