Programmatically avoiding UDP Error "Cannot bind address already in use"

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Matthew Mellor
Matthew Mellor 2016-7-15
回答： Pulkit Goel 2020-6-25
I've been using udp to receive sensor data into matlab. Occasionally I'll have to stop my matlab coding while it is running which keeps it from closing the udpObject that I was using. This means that the next time I run my code I get the error "Cannot bind address already in use". In order to run the code again successfully I have to run the command: fclose(instrfindall). I wondering if at the start of my code before I try to bind to the udp address there is a way to programmatically avoid the "Cannot bind address already in use".
Possibly something like this:
if addressAlreadyInUse
fclose(instrfindall);
end
fopen(udpObject);
Anyone know an appropriate condition to tell if addressAlreadyInUse? Thanks

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回答（1 个）

Pulkit Goel
Pulkit Goel 2020-6-25
One way to get around this problem is to enable port sharing before opening the udp object:
udpObject.EnablePortSharing='on';
This allows multiple object to be created with same port. Not the exact solution to what you want, but it works.

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