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Inputstream available method | Thales IoT Developer Community

July 26, 2016 - 12:04pm, 4881 views


I'm using InputStream read() method to read comm connection data.

Since read() method blocks until a data received, it is not efficient way of reading.

I tried available method to prevent code blocking. It works fine as fas I see.

I wonder, how an InputStream knows amount of data ready to read. It is not written anywhere that InputStream has a buffer. Has it?

If there isn't a buffer in it, how it knows amount of coming data?

Thanks in advance.