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net-receive works for me. (if (net-receive s buffer 2) (println "failed, the connection should be closed, time:" (date (date-value))) (println "succeeded, the connection was closed:" (net-error))) But net-peek doesn't. It returns 0 instead of nil when connection has been closed by server. (println (...

Hello I have a test app programmed by newlisp. It connects to the server via TCP first, never sends request to server until server close the connection when timeout. I read the API doc, but don't know which API could help me to determine the current connection's status. Should I call net-send or net...

It's done.
Will go ahead with this.
I am about to simulate over 20,000 devices using newLISP, they will be used to test against my TCP server.

It works now. pack returns a string buffer that contains my two bytes, net-send sends the string to server.
My C++ server got two bytes, 0 and 19.
Thanks.

Thanks for so quick reply.
But after packaging my short integer, I need a way to send the bytes to server via TCP.
net-send always needs a string.
And the pack returns a string too. Which API could let me to send my byte array?
I am new to newLISP.

Hello
I want to send two bytes which represent an unsigned short in big-endian to server via TCP. But net-send only supports string parameter.
Could anyone tell me how to do this?

I didn't find one convenient way to copy a directory recursively. Have to execute a 'cp -r' command on Ubuntu,
Could you provide some better APIs for manupulating files.