Lib.rave_daemon.Daemon Class Reference

A generic daemon class. More...

Inheritance diagram for Lib.rave_daemon.Daemon:

Public Member Functions
	__init__ (self, pidfile, stdin='/dev/null', stdout='/dev/null', stderr='/dev/null')
	Constructor.
	daemonize (self)
	Do the UNIX double-fork magic, see Stevens' "Advanced Programming in the UNIX Environment" for details (ISBN 0201563177) http://www.erlenstar.demon.co.uk/unix/faq_2.html#SEC16.
	delpid (self)
	Deletes the PID file.
	start (self)
	Start the daemon.
	stop (self)
	Stop the daemon.
	restart (self)
	Restart the daemon.
	run (self)
	You should override this method when you subclass Daemon.

Public Attributes
	stdin = stdin
	stdout = stdout
	stderr = stderr
	pidfile = pidfile
	delpid

Protected Member Functions
	_isprocessrunning (self, pid)
	Checks if the process with provided pid is running by checking the /proc directory.

Detailed Description

A generic daemon class.

Usage: subclass the Daemon class and override the run() method

Constructor & Destructor Documentation

__init__()

Lib.rave_daemon.Daemon.__init__	(		self,
			pidfile,
			stdin = '/dev/null',
			stdout = '/dev/null',
			stderr = '/dev/null' )

Constructor.

Parameters

pidfile	string to the file containing the PID
stdin	string path to where to direct stdin
stdout	string path to where to direct stdout
stderr	string path to where to direct stderr

Reimplemented in Lib.rave_pgf_logger.rave_pgf_logger_server.

Member Function Documentation

_isprocessrunning()

Lib.rave_daemon.Daemon._isprocessrunning ( self, pid )

protected

Checks if the process with provided pid is running by checking the /proc directory.

Parameters

pid	- the pid to check for

Returns

True if a process with provided pid is running, otherwise False

daemonize()

Lib.rave_daemon.Daemon.daemonize

(

self

)

Do the UNIX double-fork magic, see Stevens' "Advanced Programming in the UNIX Environment" for details (ISBN 0201563177) http://www.erlenstar.demon.co.uk/unix/faq_2.html#SEC16.

delpid()

Lib.rave_daemon.Daemon.delpid

(

self

)

Deletes the PID file.

restart()

Lib.rave_daemon.Daemon.restart

(

self

)

Restart the daemon.

run()

Lib.rave_daemon.Daemon.run

(

self

)

You should override this method when you subclass Daemon.

It will be called after the process has been daemonized by start() or restart().

Reimplemented in Lib.rave_pgf_logger.rave_pgf_logger_server.

start()

Lib.rave_daemon.Daemon.start

(

self

)

Start the daemon.

stop()

Lib.rave_daemon.Daemon.stop

(

self

)

Stop the daemon.

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The documentation for this class was generated from the following file:

• /github/workspace/Lib/rave_daemon.py