*********************************
Synchronize Tasks On Same Machine
*********************************

Problem
=======

You need to synchronize tasks such that only one task runs in a certain critical section.


Solution
========

Use Python's Threading module. Read more `here <https://docs.python.org/3/library/threading.html>`_.

.. literalinclude:: ..\..\..\code\HowTos\SynchronizeTasks.py
	:language: python
	:linenos:


Discussion
==========

A frequently occurring pattern is synchronizing multiple access to a resource on a local machine. 
That is, only one host per machine should access the resource at a time. Examples include:

* Updating an entry in the Windows Registry.
* Writing a file to a common location.
* Deleting a file or directory from a common location all hosts share.
* Checking if an expensive operation has been done to make sure it is performed only once.


See Also
========

Other Resources
"""""""""""""""
* `Threading <https://docs.python.org/3/library/threading.html>`_