chunks

Reads the contents of the given os.Path in chunks of the given size; returns a generator which provides a byte array and an offset into that array which contains the data for that chunk. All chunks will be of the given size, except for the last chunk which may be smaller.

Note that the array returned by the generator is shared between each callback; make sure you copy the bytes/array somewhere else if you want to keep them around.

Optionally takes in a provided input buffer instead of a chunkSize, allowing you to re-use the buffer between invocations.