LwIP TCP server example - accept multiple clients

Eli Mordel

Expert 1385 points

Hi,

I'm using the am243x-EVM with mcu_plus_sdk_am243x LwIP TCP server example.

I'm connecting to the server via Putty application.

I would like to connect more than one TCP client.

When I'm trying to connect with a second client - the server refuses

Is there a #define on how many clients ?

What else should I do to accept more clients ?

Thanks,

Eli

over 2 years ago

0 Shaunak Deshpande over 2 years ago

TI__Genius 17832 points

Hi Eli,

I'll try running some experiments on my side and get back with an update in 1-2 days

Regards,
Shaunak

0 Eli Mordel over 2 years ago in reply to Shaunak Deshpande

Expert 1385 points

Hi Shaunak,

I'll wait.

Thanks,

Eli

0 Shaunak Deshpande over 2 years ago in reply to Eli Mordel

TI__Genius 17832 points

Hi Eli Mordel,

This is a known scalability issue with TCP/IP netconn socket programming, and the out of box configuration supports only 1 client.

However, it is possible to support multiple clients. That can be done by proper thread handling. When you enter the netconn_accept() function, it blocks waiting for an incoming client connection request.

Here, either you can try to process the client request immediately and close it or spawn a new task and pass the newly received socket client request and handle this task parallelly.

Regards,
Shaunak

0 Eli Mordel over 2 years ago in reply to Shaunak Deshpande

Expert 1385 points

Thanks Shaunak !

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LwIP TCP server example - accept multiple clients