Python Process Run Control
Project description
This module provides convenient ways to guarantee a certain script state.
run.alone
Make sure only one instance of the program is running, this is done by acquiring an fcntl file lock on the current script:
>>> import run.alone
Caveats
There are a few things to keep in mind:
import run.alone once, it will exit your program if it gets imported twice
symlinked scripts will be resolved to the inode it has been linked to, this is a limitiation of using fcltn file locks
run.until
Run until a specified timespec, if the process runs longer, it will be killed:
>>> import run
>>> run.until('23m42s')
>>> ...
You can also choose to limit on the amount of CPU-time being consumed (default is wall clock time):
>>> run.until('42s', 'cpu')
>>> ...
Acknowledgements
This module is dirived from the Sys::RunAlone and Sys::RunUntil perl modules written by Elizabeth Mattijsen.
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