Python service gets interrupted function call

[Roger Upole]

"ashish" <ashish.jha at gmail.com> wrote in message news:1192011064.813082.221520 at 50g2000hsm.googlegroups.com...
> Hi All,
> I wanted to know how to handle events like 'logoff' in the main thread
> so that any process which is being run by svcDoRun method of service
> does not get 'interrupted function call' exception.
>
> I am posting a very simple service program , and i want to know that
> is there a way to handle such interrupts without explicitly calling
> try except block over blocking calls.
>
> Here is the example which is getting interrupted exception at logoff.
> =======================================================
> import os, time, sys
> import win32serviceutil, win32service
> import pywintypes, win32con, winerror
> # Use "import *" to keep this looking as much as a "normal" service
> # as possible.  Real code shouldn't do this.
> from win32event import *
> from win32file import *
> from win32pipe import *
> from win32api import *
> from ntsecuritycon import *
>
> import servicemanager
>
> import traceback
> import thread, time
>
> class TrialService(win32serviceutil.ServiceFramework):
>    _svc_name_ = "TrialService"
>    _svc_display_name_ = "TrialService"
>    _svc_description_ = "TrialService"
>    _exe_name_ = "C:/Python24/Lib/site-packages/win32/
> pythonservice.exe"
>
>    def __init__(self, args):
>        win32serviceutil.ServiceFramework.__init__(self, args)
>        self.hWaitStop = CreateEvent(None, 0, 0, None)
>        self.overlapped = pywintypes.OVERLAPPED()
>        self.overlapped.hEvent = CreateEvent(None,0,0,None)
>
>    def SvcStop(self):
>        self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
>        SetEvent(self.hWaitStop)
>
>    def SvcDoRun(self):
>        time.sleep(1000)
>
> def ctrl_handler(ctrl_type):
>    return True
>
> if __name__ =='__main__':
>    SetConsoleCtrlHandler(ctrl_handler, True)
>    win32serviceutil.HandleCommandLine(TrialService)
>
> ========================================================
>
> In actual call i just want to call my app in place of time.sleep but
> my app will have blocking code segments.
> Any help will be greatly appreciated .
> Thanks
> Ashish

Use win32api.Sleep, and pass True for the second arg.

             Roger



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