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Programming over a LAN

Posted on 1998-08-27
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Last Modified: 2010-04-10
I want to have a machine on a LAN to run a program in the background.  This program will just sit idle until a certain stream of bits comes over the LAN.  Then an action will take place, similar to sending messages over a LAN in Netware.  I am using VC++.  Is there a prewritten library of functions to assist me with this, ones at a higher level than Winsock, or do I need to start there?  Thanks!
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Question by:mitchell042997
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Expert Comment

by:PSV
ID: 1171459
Please check out wsock sample from MSDN July 96. In one of option it connect a socket
at specified port & then wait for connection from another user asynchronisaly.

Another solution is use Threads
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Expert Comment

by:bdymott
ID: 1171460
You could try UDP. This is similar to TCP but it doesnt require a connection. The MFC CSocket is a good way to use UDP
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by:mitchell042997
ID: 1171461
I need to use TCP/IP.  Thanks, though, for your comment.
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gasim earned 200 total points
ID: 1171462
Why don't you use an RPC Server and an RPC client.
They are really easy to program and all TCP/IP connectivity details is totally transparent to you. All you have to supply is the protocol to use and in case of TCP/IP the port number.
Check MSDN for RPC under WIN32 SDK
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Expert Comment

by:gasim
ID: 1171463
Why don't you use an RPC Server and an RPC client.
They are really easy to program and all TCP/IP connectivity details is totally transparent to you. All you have to supply is the protocol to use and in case of TCP/IP the port number.
Check MSDN for RPC under WIN32 SDK.
You can have your program automatically activated when the stream of bits comes by implementing the RPC Server in a service that checks for an incoming stream every second.
There is no overhead in this program since the Main service thread can ideally be completely suspended during inativity.
I can help you and implement the whole Service and RPC Server code if you want (I'm not looking for points, just a have a lot of sapre time...!)
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