Read() to buffer for specific time and then return

Currently `Read()` blocks until `buf` is full - or I don't understand the function correctly (honestly, let's hope so). I'm looking for a way to `Read()` to `buf` for say `time.Second` before `Read()` does `return` so that I can parse the data (if any) on hand rather than waiting for an infinite amount of time for a buffer to fill that might not.