fcntl.flock - how to implement a timeout?

Question

I am using python 2.7

I want to create a wrapper function around fcntl.flock() that will timeout after a set interval:

wrapper_function(timeout):
         


        

Answer 1

I'm sure there are several ways, but how about using a non-blocking lock? After some n attempts, give up and exit?

To use non-blocking lock, include the fcntl.LOCK_NB flag, as in:

fcntl.flock(self.__lock_file.fileno(), fcntl.LOCK_EX | fcntl.LOCK_NB)