Method fetchBlock

contrib/linearize/linearize-data.py:216–220

Fetch block contents from disk given extents

(self, extent)

        return os.path.join(self.settings['input'], "blk%05d.dat" % fn)

    def fetchBlock(self, extent):
        '''Fetch block contents from disk given extents'''
        with open(self.inFileName(extent.fn), "rb") as f:
            f.seek(extent.offset)
            return f.read(extent.size)

    def copyOneBlock(self):
        '''Find the next block to be written in the input, and copy it to the output.'''