Winsock Problem On High End Computer (Server) 1

[kennedymr2]

I have developed a program using mswinsck.ocx to stand as a server, which will have a large number of clients attached at any one time.
All development has been done on a laptop P4, the program has performed very well and i have had no problems.

BUT

I have now installed my program on a Windows2000 Server, using a high end server (dual processor) (multitread capable)
When i have one client connected , the performance is fine.

When the second client is connected, the first client still performs fine, but the second client just hangs.
I suspect it is blocked!! or something.

Is there another winsock control i can use, or is there a later version !!!

This problem only happens when the server is a high end computer.
On normal p3,p4 computers, it works fine., i have even installed windows 2000 server on one of the "normal" p4's,
works fine.

On the high end server, have turned mutitreading off, no difference to the problem.



I have found some references in microsoft as to winsock not working on some high end servers.
-------------------

Appreciate some advice, the whole thing is becoming URGENT.

 

[chiph]

The Winsock control is fine for small, client-side connections. As you've found, it doesn't do so well in server-side applications. I would investigate making API-level calls to the winsock api. Take a look at

http://www.15seconds.com/issue/990408.htm

for some sample code.

Chip H.


If you want to get the best response to a question, please check out FAQ222-2244 first

 

[kennedymr2]

chiph,
Thanks for your reply, much appreciated.
I have had a lot of trouble finding anyone on the internet with any comments re this particular problem.
Have had a look at the link you mentioned and will have a good look at it., looks like it does cover the problem

Thanks again

 

[chiph]

You can also look at any Unix socket programming book. The Windows Winsock library (wsock32.dll) is based on standard Berkeley Sockets. There are a few differences (Microsoft extensions), but on the whole, the programming techniques will be very similar.

Chip H.


If you want to get the best response to a question, please check out FAQ222-2244 first

 

[TheTuna]

Also, take a look at SocketWrench (Free) and SocketTools from Catalyst. Even the free version far exceeds the Microsoft winsock control.

http://www.catalyst.com

This is not meant to discount chiph's suggestions, just another interesting bit of information to add to it. ;-)

No Dolphins were harmed in the posting of this message... Dolphin Friendly Tuna!

Ever feel like you're banging your head against a tree? I did, so I cut down the tree.

 

[kennedymr2]

Thanks for all the help. Much appreciated