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Matlab2020 tcp socket open

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Saharsh Bansal
Saharsh Bansal on 16 Jun 2021
Answered: Kunal Kandhari on 19 Jun 2021
Im trying to establish a server socket on Matlab2020a.
However when I try to open the socket, it seems to be stuck at that line.
It was working till a few days back, but keeps getting stuck at this point now.

Answers (1)

Kunal Kandhari
Kunal Kandhari on 19 Jun 2021
The following code will create Server socket at port 5001 and infinitely allows clients to connect and receive data from them:
[~,hostname] = system('hostname');
hostname = string(strtrim(hostname));
address = resolvehost(hostname,"address");
server = tcpserver(address,5001,"ConnectionChangedFcn",@connectionFcn)
function connectionFcn(src, ~)
if src.Connected
disp("Client connected")
readData = read(src,src.NumBytesAvailable,'string');
disp(readData);
write(src,"Bye Bye","string");
end
end
Client code(for testing purpose):
client = tcpclient("172.31.120.98",5001,"Timeout",5);
% do change Ip address to Ip address at which server socket is created, you
% can find that from command line after runing server socket code
while(true)
rawData="Hello Server";
write(client,rawData,"string");
rawData = read(client,7,"string");
disp(rawData);
end
For more reference:

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