For a Udp connection, while loop does not work. Code gives no error.

2021 6 14
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更新时间：2021 6 17
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I am extratcing data from a file and receiving it on matlab via udp connection. I have written doen a code which works perfectly fine when I run it step by step. BUt when I run it as a whole while loop doesn't seem to work. Here is the code:
port=50021;
smartmeter = smartHES(port);
smartmeter.InitiateSocket();
dataAmount=0;
dataHistory=[];
pause(0.1)
byteav=smartmeter.smart.BytesAvailable;
while byteav
[smt]=smartmeter.readDATA();
dataHistory=[dataHistory smt];
fprintf('data is being read on port %d amount now %d\n',port,dataAmount);
end
What should I do to get this code running by just pressing run button. Further I will use this code for several ports using spmd.

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Walter Roberson
Walter Roberson 2021-6-15
编辑：Walter Roberson 2021-6-15
you do not update, byteav in your loop, or dataAmount
Asma Farooq
Asma Farooq 2021-6-15
Ports=[50021,50661];
n=2;
parpool('local',2,'AttachedFiles',{'smartHES.m'})
port = Composite(n);
for i=1:2
port{i}=Ports(i);
end
dataAmount=0;
dataHistory=[];
spmd
smartmeter = smartHES(port);
smartmeter.InitiateSocket();
byteav=smartmeter.smart.BytesAvailable;
while byteav
[smt]=smartmeter.readDATA();
dataHistory=[dataHistory smt];
fprintf('data is being read on port %d amount now %d\n',port,dataAmount);
dataAmount= dataAmount+1;
if byteav==0
disp('no data available to be read')
end
completedata = dataHistory;
end
smartmeter.NetworkDispose();
end
Asma Farooq
Asma Farooq 2021-6-15
I tried the above code but still it does not work. Even if I don't use spmd, and run only for 1 loop, I have to run it section by section then it starts running and I have to stop it manually.

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