Added a class for background working

src/class_bgWorker.py

@@ -0,0 +1,38 @@
+#! /usr/bin/python
+# -*- coding: utf-8 -*-
+# cody by linker.lin@me.com
+
+__author__ = 'linkerlin'
+
+
+import threading
+import Queue
+import time
+
+class BGWorker(threading.Thread):
+    def __init__(self):
+        threading.Thread.__init__(self)
+        self.q = Queue.Queue()
+
+    def post(self,job):
+        self.q.put(job)
+
+    def run(self):
+        while 1:
+            job=None
+            try:
+                job = self.q.get(block=True)
+                if job:
+                    job()
+            except Exception as ex:
+                print "Error,job exception:",ex.message,type(ex)
+                time.sleep(0.05)
+            else:
+                #print "job: ", job, " done"
+                pass
+            finally:
+                time.sleep(0.05)
+
+bgworker = BGWorker()
+bgworker.setDaemon(True)
+bgworker.start()