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Looking for a way to identify if a TCP server port is idle or not.. and If so, for how long the port is in idle state. Are there any direct Microsoft APIs or some way to indentify this?
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Hi SharmaShivani-9342,
You can try to use TcpClient to check the TCP ports.
And please refer to this thread for more details.
Best Regards,
Daniel Zhang
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TcpClient does not help to check a port that you already know is in use.
Instead he is asking for a way to find out what is the time interval a process only have "listening" connection but no "connecting/connected" connections.
Let me explain a bit more on my query:
I do have a tcp server client connection established. Now, I want to know if the connection is in idle state or not. If so, for how long that connection was in idle state.. Are there any direct MS APIs to know this?
Hi @Sharma, Shivani ,
I searched some information and did not find a MS API can directly detect how long the idle state time is.
Best Regards,
Daniel Zhang
Converting to answer because character limit exceed.
The application itself should be the one responsible to report how it uses the TCP connections. Imagine a typical web or P2P sharing server can have thousands of connection at any given time, if Windows need to keep track of the usage pattern, the server will be sluggish even if the number of connection is low. Now think about that again if the connections are short and the server have to keep connecting and closing them rapidly.
If the application does not implement usage reporting functions, the best you can do is to use GetTcpTable2() API to gather open connection status, and then call GetPerTcpConnectionEStats() / GetPerTcp6ConnectionEStats() API on each of the connections you're interested in to get the estimation.