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e29bf6f9e8
Breaks the file into individually tagged + crc:ed pages. Each page (sized as disk write alignment) gets a trailing 12-byte metadata, including CRC of the first page-12 bytes, and the ID of the segment being written. When reading, each page read is CRC:ed and checked to be part of the expected segment by comparing ID:s. If crc is broken, we have broken data. If crc is ok, but ID does not match, we have a prematurely terminated segment (truncated), which, depending on whether we use batch mode or not, implied data loss.