Re: Help needed: TCP Server questions/problems
From: Glenn Wilson (ircomm_no_at_spam_hotmail.com)
Date: 02/14/04
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Date: Sat, 14 Feb 2004 14:18:26 +1100
Have a look at remoting for the monitoring of you app. For the file system
question, make the service run under a user name, and allow that user to
have permissions on the file system.
GW
"Matthew Speed" <mspeed@mspeed.net> wrote in message
news:ai9q20hesgoavlqr8cjhu5is75cpk56ip3@4ax.com...
> (About me: I know very little about writing server applications. I
> have done plenty of VB6 desktop app work but this is my first server
> program. I got it to work by modifying examples. I understand what
> it is doing but not much about what is involved in extending it. )
>
> I am not necessarily looking for code examples here, just some
> pointers as to what direction I need to proceed to resolve these
> things.
>
> I have written a multithreaded TCP/IP server. This program's job is
> to listen to requests from a Java program running on some wireless
> phones. On the server side it interacts with SQL Server 2000. It
> accepts connections, is passed login credentials, recieves some data
> update from the client and sends back some results. The program
> itself works fine. I am now trying to improve upon it and have run
> into the following issues/problems:
>
> 1. I want this to run as a Windows service a la SMTP. When it runs as
> an interactive program it consumes 5-8% of the CPU time. When it runs
> as a service it consumes all it can get. When it runs it is ALWAYS
> the top CPU user on the machine. I like to think that when clients
> aren't connected it shouldn't be using 90% of the CPU time.
>
> 2. I would like to be able to monitor what it is doing. When I ran
> it as a console app I could write out messages to the console telling
> me how many clients were connected and what they were sending or being
> sent. I would like to wite a monitor program that can tap into the
> service that can receive the equivalent messages to be displayed in a
> text window since services don't get to talk to the console. My first
> thoughts would be to try to treat it like a COM object and raise
> events but I don't know if that model works in VB.Net or with services
> in general.
>
> 3. I would like to be able to log each clients' conversation to a
> text file for review. I created a logfile class with open,write and
> close methods that creates/opens a log file. This works fine in the
> console app but the service app seems unable to do this. Do services
> have the ability to write to the filesystem?
>
> TIA
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