Binary readBlock(File h, Int bsize)
Arguments
h: A file handle to read frombsize: The maximum number of bytes to read
Usage
Creates a block of size bsize and reads data into it. If there is less data to read than bsize, the block will contain as much data as could be read, and the blockSize function will return the size of the data that was read. Naturally, the file handle must be valid and readable.
