CMU Artificial Intelligence Repository
WB: Database package which may be used with SCM.
WB is a disk based, sorted associative array (B-tree) C library. These
associative arrays consist of variable length (less that 256 bytes)
keys and values.
Using WB, large databases can be created and managed from SCM.
Basic operations are creation, destruction, opening and closing of
diskfiles and arrays, insertion, deletion, retrieval, successor, and
predecessor (with respect to dictionary order of keys). Functional
application of find-next, deletion, and modification over a range of
consecutive key values is supported. Multiple associative arrays
can be stored in one disk file. Simultaneous access to multiple
disk files is supported. A structure checker, garbage collector
are included. A repair program and ram-disk type file (for
temporary structures) are in development. The current WB
implementation has a file size limit of 2^32 * block size (default
2048) = 2^43 bytes (8796 Gbytes). WB does its own memory and disk
Copying: Copyright (c) 1991, 1992, 1993 Holland Mark Martin
Use, copying, modification, and distribution permitted
for educational, research, and non-profit purposes.
(See the readme.txt file for details.)
Updated: Thu Nov 10 23:14:40 1994
CD-ROM: Prime Time Freeware for AI, Issue 1-1
Bug Reports: firstname.lastname@example.org
Author(s): Aubrey Jaffer, Jonathan Finger, and Roland Zito-Wolf
Contact: Jonathan Finger
Holland Mark Martin
174 Middlesex Turnpike
Burlington, MA 01803-4467
Authors!Finger, Authors!Jaffer, Authors!Zito-Wolf,
Database Package for SCM, Programming Languages!Scheme, SCM,
Last Web update on Mon Feb 13 10:38:07 1995