You might be falling foul of a restriction in the transport as described in the send(2) manpage:

If the message is too long to pass atomically through the underlying protocol, the error EMSGSIZE is returned, and the message is not transmitted.
You might try seeing what value $! is set to in the case of your failure.

/J\

In reply to Re: Problem with non-blocking sockets example from Cookbook - send() vs EWOULDBLOCK by gellyfish
in thread Problem with non-blocking sockets example from Cookbook - send() vs EWOULDBLOCK by macdee_2

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