On 10/27/10 13:02, Jörg F. Wittenberger wrote:
Another application would be shared substrings. Or the combination of
both. Example: feed a file content to a port, formatted as HTTP chunked
encoding. A shared substring pointing right into the mmaped file could
save all copying. The expense would be one object allocation holding
#{pointer, start, end}.
Just FYI, ages ago I wondered if it would be a good idea to make an
underlying "blob abstraction" that's a pointer, a size, and a custom
freeing function, so it can wrap malloc()ed memory, mmap()ed memory, and
whatever other special things might exist.
Then have blobs, strings, srfi-4 vectors, and friends all have the
option of being a reference to one of the above with an offset and
limit, so they can be views into arbitrary data from external sources.
ABS
--
Alaric Snell-Pym
http://www.snell-pym.org.uk/alaric/
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