v1.0.0

transport/internet/filelocker_other.go

@@ -0,0 +1,36 @@
+// +build !windows
+
+package internet
+
+import (
+	"os"
+
+	"golang.org/x/sys/unix"
+)
+
+// Acquire lock
+func (fl *FileLocker) Acquire() error {
+	f, err := os.Create(fl.path)
+	if err != nil {
+		return err
+	}
+	if err := unix.Flock(int(f.Fd()), unix.LOCK_EX); err != nil {
+		f.Close()
+		return newError("failed to lock file: ", fl.path).Base(err)
+	}
+	fl.file = f
+	return nil
+}
+
+// Release lock
+func (fl *FileLocker) Release() {
+	if err := unix.Flock(int(fl.file.Fd()), unix.LOCK_UN); err != nil {
+		newError("failed to unlock file: ", fl.path).Base(err).WriteToLog()
+	}
+	if err := fl.file.Close(); err != nil {
+		newError("failed to close file: ", fl.path).Base(err).WriteToLog()
+	}
+	if err := os.Remove(fl.path); err != nil {
+		newError("failed to remove file: ", fl.path).Base(err).WriteToLog()
+	}
+}