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Information about “CBASE THE C DATABASE LIBRARY”
This is a C database file management library. Records may be accessed
both randomly and sequentially through indexes stored in B+-trees.
Records may also be accessed sequentially in the order in which they
are stored. Multiuser access is supported under any operating system
with file locking capabilities.
Designed to be extremely portable, it's written in strict adherence to
the ANSI C standard and can still be used with the K&R C compilers. All
system dependent code is isolated to make it easy to port to new
operating systems.
CBASE is actually made up of four individual libraries, each complete
and independently accessible. At its foundation is the block buffered
I/O library which models a file as a collection of blocks made up of
fields. The linked sequential file library provides all the
facilities necessary for the creation and manipulation of doubly-
linked sequential files. The btree library provides the same for B+-
tree files. The program's library uses the linked sequential file and
btree libraries to perform all structured file management
operations. The linked sequential library is used for record storage
and the btree library is used for inverted file key storage. Database
size is limited only by available disk storage.
CBASE comes complete with all source code, and a demo database is
included to demonstrate its capabilities.
RLSNOTES.TXT
----------------------------------------------------------------------
| Citadel |
| 241 East Eleventh Street * Brookville, IN 47012 * 317-647-4720 |
| BBS 317-647-2403 |
----------------------------------------------------------------------
blkio 1.1 Release Notes
-----------------------
o bopen has been modified to open block files which do not end on a
block boundary. This was done to allow blkio to be used to rebuild
corrupt files.
o bsetvbuf bug for connecting user-supplied buffer fixed.
o function prototypes used if __STDC__ == 1
o const used if __STDC__ == 1
o bgethf sets errno to EINVAL instead of BEBOUND if the field extends
beyond the end of the header.
o bgetbf sets errno to EINVAL instead of BEBOUND if the field extends
beyond the end of the block.
o lockb len parameter type changed from size_t to bpos_t.
Citadel 89-10
DISTRIB.TXT
----------------------------------------------------------------------
| Citadel |
| 241 East Eleventh Street * Brookville, IN 47012 * 317-647-4720 |
| BBS 317-647-2403 |
----------------------------------------------------------------------
CBASE DISTRIBUTION APPLICATION
In order to distribute cbase for profit, prior written permission must
be obtained from Citadel. The following additonal restrictions apply
to distribution for profit.
- cbase may not be included on a diskette with any other
software.
- The distribution fee is limited to $10.00. No additional
remuneration may be accepted.
- The distributor must make fully evident the fact that cbase
is not in the public domain, and that the fee paid to the
distributor does not apply toward the purchase of cbase.
Along with this application form, a copy of the distributor's
promotional material and advertising copy should be included.
----------------------------------------------------------------------
| Mailing Information |
| |
| Date: ____________ |
| |
| Name: __________________________________________ |
| |
| Title: __________________________________________ |
| |
| Company: __________________________________________ |
| |
| Address: __________________________________________ |
| |
| City: _____________________, _____ ____________ |
| State Zip Code |
| Phone: _____________________ |
| |
| Copying Fee Per Diskette: __________ |
----------------------------------------------------------------------
Citadel 89-10
ORDER.TXT
----------------------------------------------------------------------
| Citadel |
| 241 East Eleventh Street * Brookville, IN 47012 * 317-647-4720 |
| BBS 317-647-2403 |
----------------------------------------------------------------------
cbase Order Form
----------------------------------------------------------------------
| Mailing Information |
| |
| Date: ____________ |
| |
| Name: __________________________________________ |
| |
| Title: __________________________________________ |
| |
| Company: __________________________________________ |
| |
| Address: __________________________________________ |
| |
| City: _____________________, _____ ____________ |
| State Zip Code |
| Phone: _____________________ |
----------------------------------------------------------------------
----------------------------------------------------------------------
| Description Unit Price Quantity Price |
| |
| cbase ............................ $77.00 _____ $ _______ |
| |
| License Additional Programmers ... 35.00 _____ _______ |
| |
| Sub-total $ _______ |
| |
| Indiana residents add 5% sales tax _______ |
| |
| Shipping ($3.50 domestic, $5.00 foreign) _______ |
| |
| Total $ _______ |
| |
| Diskette Format (select one) |
| MS-DOS: 5.25" 360K _____ 3.5" 720K _____ |
----------------------------------------------------------------------
Comments: ____________________________________________________________
______________________________________________________________________
Citadel 89-10
License
The cbase license is for one programmer. Included is one copy of
the software on diskette and one copy of the printed documentation.
There are no restrictions on the number of machines on which the
software is installed.
A company may extend its software license to cover additional
programmers. A copy of the printed documentation is provided for
each licensed programmer.
Terms of Payment
Check drawn on U.S. Bank in U.S. funds.
International bank or postal money order in U.S. funds.
Purchase orders accepted from larger corporations.
All foreign orders must be prepaid.
Updates
The update to the next release of the software is provided free of
charge. Information on updates may be obtained on the Citadel BBS.
Technical Support
There is no additional charge for technical support. See the
documentation for information on contacting technical support.
Citadel 89-10
RLSNOTES.TXT
----------------------------------------------------------------------
| Citadel |
| 241 East Eleventh Street * Brookville, IN 47012 * 317-647-4720 |
| BBS 317-647-2403 |
----------------------------------------------------------------------
cbase 1.0 beta Release Notes
----------------------------
In this file are summarized the additions and modifications made to
cbase this release. Owners of previous releases should read it
completely.
o The parameter list of the cbcreate and cbopen functions have been
modified. The original functions were
int cbcreate(char *cbname, size_t recsize,
cbfield_t fields[], size_t fldcnt);
int cbopen(char *cbname, char *type,
cbfield_t fields[], size_t fldcnt);
The new functions are
int cbcreate(char *cbname, size_t recsize,
int fldc, cbfield_t fldv[]);
int cbopen(char *cbname, char *type,
int fldc, cbfield_t fldv[]);
o The cbfield_t bit flags CBFKEY and CBFUNIQ have been changed to
CB_FKEY and CB_FUNIQ.
o Field numbering now begins at zero.
o Because of an enhancement made to the btree library, it is no longer
necessary to include the record position in the data type comparison
functions.
o The functions cbimport and cbexport have been added to import and
export data to printable files. When adding a new data type,
an import function and an export function must be provided in
addition to the comparison function.
o There is no longer a maximum number of cbase fields. The fldv array
is now dynamically allocated when a cbase is opened.
o cbclose bug fixed. Would not close first key file.
o function prototypes used if __STDC__ == 1
o const used if __STDC__ == 1
Citadel 89-10
o long double data types (t_double, t_doublev) enabled if __STDC__ ==
1
o cblock sets the cursors to null when unlocking.
o A pair of functions for converting names between the formats
last-name-first and first-name-first has been provided. fmltolfm
and lfmtofml are located in the file fml.c in the example program
directory.
btree 1.0 Release Notes
-----------------------
o The btree library has been enhanced to recognize fields. This has
required changes in the btcreate and btopen parameter lists. The
original functions were
int btcreate(char *filename, size_t m, size_t keysize);
int btopen(char *filename, char *type,
int (*cmp)(const void *p1, const void *p2, size_t n));
The new functions are
int btcreate(char *filename, size_t m, size_t keysize,
int fldc, btfield_t btfldv[]);
int btopen(char *filename, char *type,
int fldc, btfield_t btfldv[]);
o The btfix function has been added to fix corrupt btree files. This has
required a slight change in the btree file format. A utility to
convert existing btree files from the old format to the new will be
made available on the Citadel BBS.
o btlock sets the cursor to null when unlocking.
lseq 1.0 Release Notes
----------------------
o lslock sets the cursor to null when unlocking.
blkio 1.1 Release Notes
-----------------------
o bpos_t has been changed from size_t to unsigned long. If size_t is
not equivalent to unsigned long, existing files containing fields of
type bpos_t will require conversion. A utility to convert existing
cbase files will be made available on the Citadel BBS.
Citadel 89-10
o bopen has been modified to open block files which do not end on a
block boundary. This was done to allow blkio to be used to rebuild
corrupt files.
o bsetvbuf bug for connecting user-supplied buffer fixed.
o bgethf sets errno to EINVAL instead of BEBOUND if the field extends
beyond the end of the header.
o bgetbf sets errno to EINVAL instead of BEBOUND if the field extends
beyond the end of the block.
o lockb len parameter type changed from size_t to bpos_t.
Citadel 89-10
FILE2247.TXT
Disk No: 2247
Disk Title: CBASE The C Database Library
PC-SIG Version: S1
Program Title: CBase: The C Database Library
Author Version: 1.0B
Author Registration: $77.00
Special Requirements: None.
CBASE is a C database file management library. Records may be accessed
both randomly and sequentially through indexes stored in B+-trees.
Records may also be accessed sequentially in the order in which they
are stored. Multiuser access is supported under any operating system
with file locking capabilities.
CBASE is designed to be extremely portable. It is written in strict
adherence to the ANSI C standard, and can still be used with the K&R
C compilers. All system dependent code is isolated in order to make
it easy to port to new operating systems.
CBASE is actually made up of four individual libraries, each complete
and independently accessible. At the foundation of CBASE is the block
buffered i/o library which models a file as a collection of blocks
made up of fields. The linked sequential file library provides all
the facilities necessary for the creation and manipulation of doubly
linked sequential files. The btree library provides the same for
B+-tree files. The CBASE library uses the linked sequential file and
btree libraries to perform all structured file management operations.
The linked sequential library is used for record storage and the btree
library is used for inverted file key storage. Database size is
limited only by available disk storage.
CBASE comes complete with all source code, and a demo database is even
included to demonstrate its capabilities.
PC-SIG
1030D East Duane Avenue
Sunnyvale Ca. 94086
(408) 730-9291
(c) Copyright 1989 PC-SIG, Inc.
GO.TXT
╔═════════════════════════════════════════════════════════════════════════╗
║ <<<< PC-SIG Disk #CBASE THE C DATABASE LIBRARY >>>> ║
╠═════════════════════════════════════════════════════════════════════════╣
║ ║
║ The files on this disk come in archived format. ║
║ Please refer to CBASE.RME for installation instructions. ║
║ ║
║ To print the instructions, type: COPY CBASE.RME PRN (press enter) ║
║ ║
║ ║
║ ║
║ ║
║ Copyright 1990, PC-SIG, Inc. ║
╚═════════════════════════════════════════════════════════════════════════╝
Directory of PC-SIG Library Disk #2247
Volume in drive A has no label
Directory of A:\
CBASE RME 5970 1-08-90 2:55p
CBASE10B ZIP 202769 1-08-90 2:51p
CBUPDATE ZIP 23684 1-08-90 2:51p
GO BAT 37 6-21-90 10:39a
GO TXT 1079 6-23-90 12:19p
FILE2247 TXT 2961 6-24-90 3:38p
6 file(s) 236500 bytes
81920 bytes free