how to block a socket indefinitely

Hi everybody,

When a socket is created, by default it is a blocking socket. Under blocking mode socket I/O operations, connect and accept operations all block until the operation in question is completed.
I want to receive data periodically from a client. That is, the first time I receive data the socket is blocked in the accept function but the next time is not blocked anymore and I want that it waits for the next incoming data. I use the ioctlsocket function after the accept function but it doesn't work.

Can you help me?

thank you very much.
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