tokyocabinet
Note: This is taken from the Chicken Wiki, where a more recent version could be available.
Tokyo Cabinet DBM bindings for Chicken.
None
The following flags and procedures are defined (currently only the hash database API is provided - B-trees and fixed-length databases may be provided later). For more information, consult the tokyocabinet(3) manual pages.
(tc-hdb-open FILE #!key FLAGS
TUNE-OPTS
MUTEX?
NUM-BUCKETS
RECORD-ALIGNMENT
NUM-FREE-BLOCKS
CACHE-LIMIT
MMAP-SIZE)Returns a HDB object as a c-pointer. FLAGS specify the creation and locking behavior and can include any of the following:
<constant>TC_HDBOWRITER</constant> <constant>TC_HDBOREADER</constant> <constant>TC_HDBOCREAT</constant> <constant>TC_HDBOTRUNC</constant> <constant>TC_HDBONOLCK</constant> <constant>TC_HDBOLCKNB</constant>
By default files are opened for reading and writing and creating.
TUNE-OPTS, along with the other keywords specify options to the tchdbtune function. MUTEX? opens the file under mutex mode (as with tchdbsetmutex).
(tc-hdb-close HDB)
Closes and frees the database handle.
(tc-hdb-put! HDB KEY VALUE)
(tc-hdb-delete! DBF KEY)
(tc-hdb-get HDB KEY)
Returns a STRING
(tc-hdb-iter-init HDB)
(tc-hdb-iter-next HDB)
Returns a STRING
(tc-hdb-fold HDB KONS KNIL)
Returns the accumulated result. Specify ALIST-CONS for the KONS to get an alist representation of the database.
Procedures which accept or return strings, such as tc-hdb-get and tc-hdb-put, are subject to the maximum string length limit imposed by Chicken. On 32-bit platforms, this is 16 megabytes. On a 64-bit platform, it is 72 petabytes. If you try to store or retrieve objects exceeding this limit, an error will occur.
Copyright (c) 2008, Alex Shinn
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