Update of /cvsroot/pywin32/pywin32/win32/Demos/service
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv8131/Demos/service
Added Files:
serviceEvents.py
Log Message:
Take advantage of all RegisterServiceCtrlHandler() functionality in a
backwards compatible way, including a demo.
--- NEW FILE: serviceEvents.py ---
# A Demo of a service that takes advantage of the additional notifications
# available in later Windows versions.
import win32serviceutil, win32service
import win32event
import servicemanager
class EventDemoService(win32serviceutil.ServiceFramework):
_svc_name_ = "PyServiceEventDemo"
_svc_display_name_ = "Python Service Event Demo"
_svc_description_ = "Demonstrates a Python service which takes advantage of the extra notifications"
def __init__(self, args):
win32serviceutil.ServiceFramework.__init__(self, args)
self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)
# Override the base class so we can accept additional events.
def GetAcceptedControls(self):
# say we accept them all.
rc = win32serviceutil.ServiceFramework.GetAcceptedControls(self)
rc |= win32service.SERVICE_ACCEPT_PARAMCHANGE \
| win32service.SERVICE_ACCEPT_NETBINDCHANGE \
| win32service.SERVICE_ACCEPT_HARDWAREPROFILECHANGE \
| win32service.SERVICE_ACCEPT_POWEREVENT \
| win32service.SERVICE_ACCEPT_SESSIONCHANGE
return rc
# All extra events are sent via SvcOtherEx (SvcOther remains as a
# function taking only the first args for backwards compat)
def SvcOtherEx(self, control, event_type, data):
# This is only showing a few of the extra events - see the MSDN
# docs for "HandlerEx callback" for more info.
# XXX can't do SERVICE_CONTROL_DEVICEEVENT until we wrap RegisterDeviceNotification.
if control == win32service.SERVICE_CONTROL_HARDWAREPROFILECHANGE:
msg = "A hardware profile changed: change type %d" % (event_type,)
elif control == win32service.SERVICE_CONTROL_POWEREVENT:
msg = "A power event: setting guid=%d, raw_data=%s" % data
elif control == win32service.SERVICE_CONTROL_SESSIONCHANGE:
# data is a single elt tuple, but this could potentially grow
# in the future if the win32 struct does
msg = "Session event: session ID=%d" % data[:1]
else:
msg = "Other event: code=%d, event_type=%d, data=%s" \
% (control, event_type, data)
servicemanager.LogMsg(
servicemanager.EVENTLOG_INFORMATION_TYPE,
0xF000, # generic message
(msg, '')
)
def SvcStop(self):
self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
win32event.SetEvent(self.hWaitStop)
def SvcDoRun(self):
# do nothing at all - just wait to be stopped
win32event.WaitForSingleObject(self.hWaitStop, win32event.INFINITE)
# Write a stop message.
servicemanager.LogMsg(
servicemanager.EVENTLOG_INFORMATION_TYPE,
servicemanager.PYS_SERVICE_STOPPED,
(self._svc_name_, '')
)
if __name__=='__main__':
win32serviceutil.HandleCommandLine(EventDemoService)
|
