Initial import of ifupdown2 sources

ifupdown2/ifupdown/utils.py

@@ -0,0 +1,32 @@
+#!/usr/bin/python
+#
+# Copyright 2014 Cumulus Networks, Inc. All rights reserved.
+# Author: Roopa Prabhu, roopa@cumulusnetworks.com
+#
+# utils --
+#    helper class
+#
+import os
+import fcntl
+
+class utils():
+
+    @classmethod
+    def importName(cls, modulename, name):
+        """ Import a named object """
+        try:
+            module = __import__(modulename, globals(), locals(), [name])
+        except ImportError:
+            return None
+        return getattr(module, name)
+
+    @classmethod
+    def lockFile(cls, lockfile):
+        try:
+            fp = os.open(lockfile, os.O_CREAT | os.O_TRUNC | os.O_WRONLY)
+            fcntl.flock(fp, fcntl.LOCK_EX | fcntl.LOCK_NB)
+        except IOError:
+            return False
+        return True
+
+