stephane.poirot wrote:
Good morning,
I'm currently building an application which involves two different
processes : one is a service and the other one is a simple client.
My client starts at user's login and the service should start at
windows boot. I say 'should' because it seems that the service
actually starts at user's login too : I put logs in the event log and
I noticed that the service starts almost 7 to 10 seconds after
the client, which is not what is expected. Service's properties are :
run automatically on System account, no dependencies.
The code of my service is based on the one found in the book :
Oreilly, Python Programming on Win32, at chapter 18.6 :
Sample Service Written in Python.
Furthermore, my two processes communicate through a named pipe, and
the problem aforementioned involves that the communication is not
possible : indeed, the service, who should start before the client,
creates the pipe and waits for a client connection. Client has just to
open the pipe to connect. But obviously if the client starts before
the service, an error occurs because no pipe is created so far.
I did a lot of searches to solve this problem, but haven't found any
issue yet.
I first thought that the problem came from pythonservice.exe, which
hosts my service : it may take longer time
to load than common other windows services. That's why I converted my
service into a .exe thanks to py2exe. Then the path in service's
properties has changed to this executable. But the problem remains :
service still starts after client.
However, the problem only occurs at first user's login after machine's
boot : if he disconnects and somebody connects after, without reboot,
the service is still running, which is normal.
I run Windows 2003 Server with automatic logon. It seems to me that some
services are started after the logon. I base this on noting that I get
the Some Services Did Not Start alert many seconds after my desktop has
appeared.
Could the client repeatedly try connecting with some reasonable delay
between connection attempts?
--
Bob Gailer
919-636-4239 Chapel Hill, NC
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