adjust project directories

[bottlenecks.git] / vstf / vstf / common / daemon.py

diff --git a/vstf/vstf/common/daemon.py b/vstf/vstf/common/daemon.py
deleted file mode 100644 (file)
index 35933da..0000000
--- a/vstf/vstf/common/daemon.py
+++ /dev/null
@@ -1,154 +0,0 @@
-##############################################################################
-# Copyright (c) 2015 Huawei Technologies Co.,Ltd and others.
-#
-# All rights reserved. This program and the accompanying materials
-# are made available under the terms of the Apache License, Version 2.0
-# which accompanies this distribution, and is available at
-# http://www.apache.org/licenses/LICENSE-2.0
-##############################################################################
-
-import sys, os, time, atexit
-import logging
-from signal import SIGTERM
-
-LOG = logging.getLogger(__name__)
-
-
-class Daemon(object):
-    """
-    A generic daemon class.
-    
-    Usage: subclass the Daemon class and override the run() method
-    """
-
-    def __init__(self, pidfile, stdin='/dev/null', stdout='/dev/null', stderr='/dev/null'):
-        super(Daemon, self).__init__()
-        self.stdin = stdin
-        self.stdout = stdout
-        self.stderr = stderr
-        self.pidfile = pidfile
-
-    def 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
-        """
-        try:
-            pid = os.fork()
-            if pid > 0:
-                sys.exit(0)
-        except OSError, e:
-            LOG.error("fork #1 failed: %(errno)s, %(strerror)s",
-                      {'errno': e.errno, 'strerror': e.strerror})
-            sys.exit(1)
-
-        # decouple from parent environment
-        os.chdir("/")
-        os.setsid()
-        os.umask(0)
-
-        # do second fork
-        try:
-            pid = os.fork()
-            if pid > 0:
-                # exit from second parent
-                sys.exit(0)
-        except OSError, e:
-            LOG.error("fork #1 failed: %(errno)s, %(strerror)s",
-                      {'errno': e.errno, 'strerror': e.strerror})
-            sys.exit(1)
-
-            # 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())
-
-        # write pidfile
-        atexit.register(self.delpid)
-        pid = str(os.getpid())
-        file(self.pidfile, 'w+').write("%s\n" % pid)
-
-    def delpid(self):
-        os.remove(self.pidfile)
-
-    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)
-        LOG.info("daemon start to run daemonize")
-        # Start the daemon
-        self.daemonize()
-        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. Daemon not running?\n"
-            sys.stderr.write(message % self.pidfile)
-            return  # not an error in a restart
-
-        # Try killing the daemon process    
-        try:
-            while 1:
-                os.kill(pid, SIGTERM)
-                time.sleep(0.1)
-        except OSError, err:
-            err = str(err)
-            if err.find("No such process") > 0:
-                if os.path.exists(self.pidfile):
-                    os.remove(self.pidfile)
-            else:
-                print str(err)
-                sys.exit(1)
-
-    def restart(self):
-        """
-        Restart the daemon
-        """
-        self.stop()
-        self.start()
-
-    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().
-        
-        """
-        pass
-
-    def daemon_die(self):
-        """You should override this method when you shutdown daemon
-        this func will be call by stop() before kill the process
-        
-        """
-        pass