daemonize

Table of Content

• Name
• Status
• Synopsis
• Description
• Methods
  • daemonize.daemonize_cli
• Author
• Copyright and License

Name

daemonize.py

Create daemon process.

Status

This library is considered production ready.

Synopsis

foo.py:

# foo.py
import time
from pykit import daemonize
def run():
    for i in range(100):
        print i
        time.sleep(1)

if __name__ == '__main__':
    # there is at most only one of several processes with the same pid path
    # that can run.
    daemonize.daemonize_cli(run, '/var/run/pid')

To control foo.py from command line:

python2 foo.py start
python2 foo.py stop
python2 foo.py restart

Description

Help to create daemon process. It supplies a command line interface API to start/stop/restart a daemon.

daemonize identifies a daemon by the pid file. Thus two processes those are set up with the same pid file can not run at the same time.

Methods

daemonize.daemonize_cli

syntax: daemonize.daemonize_cli(callable, pid_path, close_fds=False)

Read command line arguments and then start, stop or restart a daemon process.

arguments:

• callable: a callable object such as a function or lambda to run after the daemon process is created.

• pid_path: abosolute path of pid file. It is used to identify a daemon process. Thus two processes those are with the same pid file can not run at the same time.

• close_fds: If it is True, besides stdin, stdout and stderr, all other file descriptors will also be closed.

return: None

Author

Zhang Yanpo (张炎泼) [email protected]

Copyright and License

The MIT License (MIT)

Copyright (c) 2015 Zhang Yanpo (张炎泼) [email protected]