| 1 | /* GNU DBM - DataBase Manager include file |
|---|
| 2 | Copyright 1989, 1991 Free Software Foundation, Inc. |
|---|
| 3 | Written by Philip A. Nelson. |
|---|
| 4 | |
|---|
| 5 | This program is free software; you can redistribute it and/or modify |
|---|
| 6 | it under the terms of the GNU General Public License as published by |
|---|
| 7 | the Free Software Foundation; either version 2 of the License, or |
|---|
| 8 | (at your option) any later version. |
|---|
| 9 | |
|---|
| 10 | This program is distributed in the hope that it will be useful, |
|---|
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|---|
| 13 | GNU General Public License for more details. |
|---|
| 14 | |
|---|
| 15 | You should have received a copy of the GNU General Public License |
|---|
| 16 | along with this program; if not, write to the Free Software |
|---|
| 17 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
|---|
| 18 | |
|---|
| 19 | /* You may contact the author by: |
|---|
| 20 | e-mail: phil@wwu.edu |
|---|
| 21 | us-mail: Philip A. Nelson |
|---|
| 22 | Computer Science Department |
|---|
| 23 | Western Washington University |
|---|
| 24 | Bellingham, WA 98226 |
|---|
| 25 | phone: (206) 676-3035 |
|---|
| 26 | |
|---|
| 27 | *************************************************************************/ |
|---|
| 28 | |
|---|
| 29 | /* Parameters to gdbm_open for READERS, WRITERS, and WRITERS who |
|---|
| 30 | can create the database. */ |
|---|
| 31 | #define GDBM_READER 0 |
|---|
| 32 | #define GDBM_WRITER 1 |
|---|
| 33 | #define GDBM_WRCREAT 2 |
|---|
| 34 | #define GDBM_NEWDB 3 |
|---|
| 35 | |
|---|
| 36 | /* Parameters to gdbm_store for simple insertion or replacement. */ |
|---|
| 37 | #define GDBM_INSERT 0 |
|---|
| 38 | #define GDBM_REPLACE 1 |
|---|
| 39 | |
|---|
| 40 | |
|---|
| 41 | /* The data and key structure. This structure is defined for compatibility. */ |
|---|
| 42 | typedef struct { |
|---|
| 43 | char *dptr; |
|---|
| 44 | int dsize; |
|---|
| 45 | } datum; |
|---|
| 46 | |
|---|
| 47 | |
|---|
| 48 | /* The file information header. This is good enough for most applications. */ |
|---|
| 49 | typedef struct {int dummy[10];} *GDBM_FILE; |
|---|
| 50 | |
|---|
| 51 | |
|---|
| 52 | /* These are the routines! */ |
|---|
| 53 | |
|---|
| 54 | extern GDBM_FILE gdbm_open (); |
|---|
| 55 | |
|---|
| 56 | extern void gdbm_close (); |
|---|
| 57 | |
|---|
| 58 | extern datum gdbm_fetch (); |
|---|
| 59 | |
|---|
| 60 | extern int gdbm_store (); |
|---|
| 61 | |
|---|
| 62 | extern int gdbm_delete (); |
|---|
| 63 | |
|---|
| 64 | extern datum gdbm_firstkey (); |
|---|
| 65 | |
|---|
| 66 | extern datum gdbm_nextkey (); |
|---|
| 67 | |
|---|
| 68 | extern int gdbm_reorganize (); |
|---|
| 69 | |
|---|
| 70 | |
|---|
| 71 | /* gdbm sends back the following error codes in the variable gdbm_errno. */ |
|---|
| 72 | typedef enum { NO_ERROR, |
|---|
| 73 | MALLOC_ERROR, |
|---|
| 74 | BLOCK_SIZE_ERROR, |
|---|
| 75 | FILE_OPEN_ERROR, |
|---|
| 76 | FILE_WRITE_ERROR, |
|---|
| 77 | FILE_SEEK_ERROR, |
|---|
| 78 | FILE_READ_ERROR, |
|---|
| 79 | BAD_MAGIC_NUMBER, |
|---|
| 80 | EMPTY_DATABASE, |
|---|
| 81 | CANT_BE_READER, |
|---|
| 82 | CANT_BE_WRITER, |
|---|
| 83 | READER_CANT_RECOVER, |
|---|
| 84 | READER_CANT_DELETE, |
|---|
| 85 | READER_CANT_STORE, |
|---|
| 86 | READER_CANT_REORGANIZE, |
|---|
| 87 | UNKNOWN_UPDATE, |
|---|
| 88 | ITEM_NOT_FOUND, |
|---|
| 89 | REORGANIZE_FAILED, |
|---|
| 90 | CANNOT_REPLACE} |
|---|
| 91 | gdbm_error; |
|---|
