Add Locking

compLib/Lock.py

@@ -0,0 +1,25 @@
+from filelock import FileLock, Timeout
+import atexit
+
+FILELOCK_PATH = "/root/complib.lock"
+
+global_lock = FileLock(FILELOCK_PATH,  timeout=1)
+class Lock(object):
+    @staticmethod
+    def lock():
+        global_lock.acquire()
+
+    @staticmethod
+    def unlock():
+        global_lock.release()
+
+    @staticmethod
+    def is_locked():
+        try:
+            global_lock.acquire()
+            global_lock.release()
+            return False
+        except Timeout:
+            return True
+
+atexit.register(Lock.unlock)