Windows XMLRPC Service

[Gabriel Genellina]

En Tue, 19 Jun 2007 03:45:19 -0300, <half.italian at gmail.com> escribió:


> I can't quite figure out where to set the "socket timeout".  I tried
> setting win32event.WAIT_TIMEOUT, but I'm pretty sure that's not the
> variable you were talking about.  I did manage to make it multi-
> threaded by incorporating a different recipe, and I'm beginning to
> understand the control flow a bit better, but it doesn't seem to be
> doing what I expect.  When SvcStop() is executed and calls
> win32event.SetEvent(self.hWaitStop), the while loop should break as
> win32event.WaitForSingleObject(self.hWaitStop, 0) returns zero at this
> point.  But it doesn't do that.  What am I missing?

May be because you didn't set correctly the socket timeout. See the  
comments below.

>
>     def SvcStop(self):
>         self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
>         win32event.SetEvent(self.hWaitStop)
>         #print "EVENT:",
> win32event.WaitForSingleObject(self.hWaitStop, 0) # returns 0 here

That's OK, since you have set the event.

>     def SvcDoRun(self):
>         self.server.register_instance(MyClass())
>
>         #win32event.WAIT_TIMEOUT = 2 --- This just makes the loop
> never execute because
>         # the WaitFor... part always returns 258

WAIT_TIMEOUT is 258. How do you see it is 2?
For example, see <http://msdn2.microsoft.com/en-us/library/ms681382.aspx>.
Python 2.5.1 + pywin32 210 prints this on my PC:
py> import win32event
py> win32event.WAIT_TIMEOUT
258

>         while win32event.WaitForSingleObject(self.hWaitStop, 0) ==
> win32event.WAIT_TIMEOUT:
>             self.server.handle_request()

The loop above should keep running until hWaitStop is set, with a maximum  
wait time (inside handle_request) corresponding to the socket timeout  
value.
You can either:
- use socket.setdefaulttimeout() (in __init__, by example) before anything  
else. This will set a global timeout for all sockets.
- modify the socket instance. Just add this method to your AsyncServer:
     def server_activate(self):
         SimpleXMLRPCServer.server_activate(self)
	self.socket.settimeout(15) # for 15 secs


-- 
Gabriel Genellina