tqlihuiqi/pydaemon

daemon process

Python daemon process

Daemonize your Python program so it can continue running in the background.

Usage

General method

import time
from daemon import Daemon

def program(total):
    count = 0
    while count <= total:
        time.sleep(1)
        count += 1

proc = Daemon(target=program, args=(100,), procname="myDaemonProgram", pidfile="/tmp/program.pid")
proc.start()

localhost: lihuiqi$ ps -ef |grep myDaemonProgram
  501 98023     1   0  1:35下午 ??         0:00.00 myDaemonProgram 

Decorator method

import time
from daemon import Daemon

proc = Daemon(procname="myDaemonProgram", pidfile="/tmp/program.pid")

@proc.daemon
def program(total):
    count = 0
    while count <= total:
        time.sleep(1)
        count += 1


program(total=100)

localhost: lihuiqi$ ps -ef |grep myDaemonProgram
  501 98031     1   0  1:49下午 ??         0:00.00 myDaemonProgram 

Actions

• start() - starts the daemon (creates PID and daemonizes).
• stop() - stops the daemon (stops the child process and removes the PID).
• restart() - does stop() then start().
• status() - checks the daemon status.