Python Query: Related to locking a resource in a multithreaded environment

[tarun]

Hello All,

I've a configuration.ini file. This particular can be accessed by several
threads of my application. Each thread can read/write configuration
parameters from/to the configuration.ini file. I am using threading (Rlock)
to lock the resource (configuration.ini file) while accessing it from any
thread. I use the file available at
http://www.voidspace.org.uk/python/configobj.html for read/write.

I did the following in one of my files:

import threading
class Synchronization:
  def __init__(self):
    self.mutex = threading.RLock()

Now this I can create instances of the class Synchronization and use
acquire/release to work on the shared resource. But every thread would need
to import this class and hence each thread would create a separate instance
of the class. This means several lock variables. But I think we need a
global lock flag that is accessible across all the threads.

How do i do this?

Please let me know ASAP.

Thanks In Advance,
Tarun
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