X-Git-Url: https://git.kaliko.me/?p=python-daemon.git;a=blobdiff_plain;f=src%2Fdaemon.py;fp=src%2Fdaemon.py;h=0000000000000000000000000000000000000000;hp=96cde84e9ec3a043dd49f3b557a28e56b5c438b8;hb=93b04564dae8bf7fc8c5e47c404698222ee039de;hpb=43f9a47ada69104b79a759a56ff6706945503ec2

diff --git a/src/daemon.py b/src/daemon.py
deleted file mode 100644
index 96cde84..0000000
--- a/src/daemon.py
+++ /dev/null
@@ -1,198 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# Public Domain
-#
-# Copyright 2007, 2009 Sander Marechal <s.marechal@jejik.com>
-# Copyright 2010, 2011, 2012 Jack Kaliko <efrim@azylum.org>
-#
-# http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/
-
-import atexit
-import os
-import sys
-import time
-from signal import signal, SIGTERM
-
-
-class Daemon(object):
-    """
-    A generic daemon class.
-
-    Usage: subclass the Daemon class and override the run() method
-    """
-    version = "0.4"
-
-    def __init__(self, pidfile,
-            stdin='/dev/null',
-            stdout='/dev/null',
-            stderr='/dev/null'):
-        self.stdin = stdin
-        self.stdout = stdout
-        self.stderr = stderr
-        self.pidfile = pidfile
-        self.umask = 0
-
-    def daemonize(self):
-        """
-        Do the UNIX double-fork magic.
-        see W. Richard Stevens, "Advanced Programming in the Unix Environment"
-        for details (ISBN 0201563177)
-
-        Short explanation:
-            Unix processes belong to "process group" which in turn lies within a "session".
-            A session can have a controlling tty.
-            Forking twice allows to detach the session from a possible tty.
-            The process lives then within the init process.
-        """
-        try:
-            pid = os.fork()
-            if pid > 0:
-                # exit first parent
-                sys.exit(0)
-        except OSError, e:
-            sys.stderr.write('fork #1 failed: %d (%s)\n' % (e.errno, e.strerror))
-            sys.exit(1)
-
-        # Decouple from parent environment
-        os.chdir('/')
-        os.setsid()
-        self.umask = os.umask(0)
-
-        # Do second fork
-        try:
-            pid = os.fork()
-            if pid > 0:
-                # exit from second parent
-                sys.exit(0)
-        except OSError, e:
-            sys.stderr.write('fork #2 failed: %d (%s)\n' % (e.errno, e.strerror))
-            sys.exit(1)
-
-        self.write_pid()
-        # redirect standard file descriptors
-        sys.stdout.flush()
-        sys.stderr.flush()
-        si = file(self.stdin, 'r')
-        so = file(self.stdout, 'a+')
-        se = file(self.stderr, 'a+', 0)
-        os.dup2(si.fileno(), sys.stdin.fileno())
-        os.dup2(so.fileno(), sys.stdout.fileno())
-        os.dup2(se.fileno(), sys.stderr.fileno())
-
-        atexit.register(self.shutdown)
-        self.signal_management()
-
-    def write_pid(self):
-        # write pidfile
-        if not self.pidfile:
-            return
-        pid = str(os.getpid())
-        try:
-            os.umask(self.umask)
-            file(self.pidfile, 'w').write('%s\n' % pid)
-        except Exception, wpid_err:
-            sys.stderr.write(u'Error trying to write pid file: %s\n' % wpid_err)
-            sys.exit(1)
-        os.umask(0)
-        atexit.register(self.delpid)
-
-    def signal_management(self):
-        # Declare signal handlers
-        signal(SIGTERM, self.exit_handler)
-
-    def exit_handler(self, signum, frame):
-        sys.exit(1)
-
-    def delpid(self):
-        try:
-            os.unlink(self.pidfile)
-        except OSError as err:
-            message = 'Error trying to remove PID file: %s\n'
-            sys.stderr.write(message % err)
-
-    def start(self):
-        """
-        Start the daemon
-        """
-        # Check for a pidfile to see if the daemon already runs
-        try:
-            pf = file(self.pidfile, 'r')
-            pid = int(pf.read().strip())
-            pf.close()
-        except IOError:
-            pid = None
-
-        if pid:
-            message = 'pidfile %s already exist. Daemon already running?\n'
-            sys.stderr.write(message % self.pidfile)
-            sys.exit(1)
-
-        # Start the daemon
-        self.daemonize()
-        self.run()
-
-    def foreground(self):
-        """
-        Foreground/debug mode
-        """
-        self.write_pid()
-        atexit.register(self.shutdown)
-        self.run()
-
-    def stop(self):
-        """
-        Stop the daemon
-        """
-        # Get the pid from the pidfile
-        try:
-            pf = file(self.pidfile, 'r')
-            pid = int(pf.read().strip())
-            pf.close()
-        except IOError:
-            pid = None
-
-        if not pid:
-            message = 'pidfile %s does not exist. Is the Daemon running?\n'
-            sys.stderr.write(message % self.pidfile)
-            return  # not an error in a restart
-
-        # Try killing the daemon process
-        try:
-            os.kill(pid, SIGTERM)
-            time.sleep(0.1)
-        except OSError, err:
-            if err.errno == 3:
-                if os.path.exists(self.pidfile):
-                    message = "Daemon's not running? removing pid file %s.\n"
-                    sys.stderr.write(message % self.pidfile)
-                    os.remove(self.pidfile)
-            else:
-                sys.stderr.write(err.strerror)
-                sys.exit(1)
-
-    def restart(self):
-        """
-        Restart the daemon
-        """
-        self.stop()
-        self.start()
-
-    def shutdown(self):
-        """
-        You should override this method when you subclass Daemon. It will be
-        called when the process is being stopped.
-        Pay attention:
-        Daemon() uses atexit to call Daemon().shutdown(), as a consequence
-        shutdown and any other functions registered via this module are not
-        called when the program is killed by an un-handled/unknown signal.
-        This is the reason of Daemon().signal_management() existence.
-        """
-
-    def 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().
-        """
-
-# VIM MODLINE
-# vim: ai ts=4 sw=4 sts=4 expandtab