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- FSOVL-HANDLER
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- This is a filesystem overlay handler that provides automatic compression
- and decompression of files. Openning a file automatically decompresses
- it. Writing to a file automatically compresses it. Files openned for
- read are blocked into memory in 4K segments while files openned for
- write are brought entirely into memory and then compressed on close.
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- Seek operations are fast but an actual Read() after a seek may be slow.
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- Files with extensions of .Z .LHA .LZH .ZOO .ZIP are not compressed.
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- The first 8 bytes of the comment field of a file is reserved to store
- its actual length. This is transparent for operations done through the
- FSOVL-HANDLER.
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