I've been playing around with pylons lately on windows and saw that
there
is no equivalent to demonize in paste for windows. So after looking
around at
lots of code I stole and modified some example windows service code
from cherrypy. Basically if you put the windowservice.py fine in the
same file as your inifile, and run it it will add a new section to the
ini file which will allow you to define a windows service, running it
again a second time will allow you to install, and run the newly
defined service. I'm including the file, hopefully someone else will
find it useful, and if anyone has suggestions on how to improve the
spaghetti code It would be much appreciated.
Jose
=== WindowsService.py ====
"""
The most basic (working) Windows service possible.
Requires Mark Hammond's pywin32 package.
Most of the code was taken from a CherryPy 2.2 example of how to set
up a service
"""
import win32serviceutil
from paste.script.serve import ServeCommand as Server
import os, sys
import ConfigParser
import win32service
import win32event
class DefaultSettings(object):
def __init__(self):
os.chdir(os.path.dirname(__file__))
# find the ini file
self.ini = [x for x in os.listdir('.')
if os.path.splitext(x)[1].lower().endswith('ini')]
# create a config parser opject and populate it with the ini
file
c = ConfigParser.SafeConfigParser()
c.read(self.ini[0])
self.c = c
def getDefaults(self):
'''
Check for and get the default settings
'''
if (
(not self.c.has_section('winservice')) or
(not self.c.has_option('winservice', 'service_name')) or
(not self.c.has_option('winservice',
'service_display_name')) or
(not self.c.has_option('winservice',
'service_description'))
):
print 'setting defaults'
self.setDefaults()
service_name = self.c.get('winservice', 'service_name')
service_display_name = self.c.get('winservice',
'service_display_name')
service_description = self.c.get('winservice',
'service_description')
iniFile = self.ini[0]
return service_name, service_display_name, service_description,
iniFile
def setDefaults(self):
'''
set and add the default setting to the ini file
'''
if not self.c.has_section('winservice'):
self.c.add_section('winservice')
self.c.set('winservice', 'service_name', 'WSCGIService')
self.c.set('winservice', 'service_display_name', 'WSCGI windows
service')
self.c.set('winservice', 'service_description', 'WSCGI windows
service')
cfg = file(self.ini[0], 'wr')
self.c.write(cfg)
cfg.close()
print '''
you must set the winservice section service_name, service_display_name,
and service_description options to define the service
in the %s file
''' % self.ini[0]
sys.exit()
class MyService(win32serviceutil.ServiceFramework):
"""NT Service."""
d = DefaultSettings()
service_name, service_display_name, service_description, iniFile =
d.getDefaults()
_svc_name_ = service_name
_svc_display_name_ = service_display_name
_svc_description_ = service_description
def __init__(self, args):
win32serviceutil.ServiceFramework.__init__(self, args)
# create an event that SvcDoRun can wait on and SvcStop
# can set.
self.stop_event = win32event.CreateEvent(None, 0, 0, None)
def SvcDoRun(self):
os.chdir(os.path.dirname(__file__))
s = Server(None)
s.run([self.iniFile])
win32event.WaitForSingleObject(self.stop_event,
win32event.INFINITE)
def SvcStop(self):
self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
#cherrypy.server.stop()
#win32event.SetEvent(self.stop_event)
self.ReportServiceStatus(win32service.SERVICE_STOPPED)
sys.exit()
if __name__ == '__main__':
win32serviceutil.HandleCommandLine(MyService)
==========================================
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