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Tokyo Cabinet DBM bindings for Chicken.
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[procedure] (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 specifies creation and locking behavior; by default files are opened for reading (TC_HDBOREADER), writing (TC_HDBOWRITER) and creating (TC_HDBOCREAT).
TUNE-OPTS, along with the other keywords specify options to the tchdbtune function. MUTEX? opens the file under mutex mode (as with tchdbsetmutex).[constant] TC_HDBOWRITER
These flags to tc-hdb-open specify creation and locking behavior.
tc-hdb-close[procedure] (tc-hdb-close HDB)
Closes and frees the database handle.
tc-hdb-put![procedure] (tc-hdb-put! HDB KEY VALUE)
Put (KEY, VALUE) into hash database HDB.
tc-hdb-delete![procedure] (tc-hdb-delete! HDB KEY)
Delete KEY from hash database HDB.
tc-hdb-get[procedure] (tc-hdb-get HDB KEY)
Returns the string VALUE associated with KEY in hash database HDB, or #f if KEY does not exist.
tc-hdb-iter-init[procedure] (tc-hdb-iter-init HDB)
tc-hdb-iter-next[procedure] (tc-hdb-iter-next HDB)
Returns a STRING
tc-hdb-fold[procedure] (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.
- 1.0 Initial release
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