2 * Copyright (c) 1995, Index Data.
4 * Permission to use, copy, modify, distribute, and sell this software and
5 * its documentation, in whole or in part, for any purpose, is hereby granted,
8 * 1. This copyright and permission notice appear in all copies of the
9 * software and its documentation. Notices of copyright or attribution
10 * which appear at the beginning of any file must remain unchanged.
12 * 2. The name of Index Data or the individual authors may not be used to
13 * endorse or promote products derived from this software without specific
14 * prior written permission.
16 * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
18 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
19 * IN NO EVENT SHALL INDEX DATA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
20 * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES
21 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR
22 * NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
33 typedef struct bend_initrequest
38 typedef struct bend_initresult
40 int errcode; /* 0==OK */
41 char *errstring; /* system error string or NULL */
42 void *handle; /* private handle to the backend module */
45 typedef struct bend_searchrequest
47 char *setname; /* name to give to this set */
48 int replace_set; /* replace set, if it already exists */
49 int num_bases; /* number of databases in list */
50 char **basenames; /* databases to search */
51 Z_Query *query; /* query structure */
54 typedef struct bend_scanrequest
56 int num_bases; /* number of elements in databaselist */
57 char **basenames; /* databases to search */
58 Z_AttributesPlusTerm *term;
59 int term_position; /* desired index of term in result list */
60 int num_entries; /* number of entries requested */
63 typedef struct bend_scanresult
74 BEND_SCAN_SUCCESS, /* ok */
75 BEND_SCAN_PARTIAL /* not all entries could be found */
81 typedef struct bend_searchresult
83 int hits; /* number of hits */
84 int errcode; /* 0==OK */
85 char *errstring; /* system error string or NULL */
88 typedef struct bend_fetchrequest
90 char *setname; /* set name */
91 int number; /* record number */
94 typedef struct bend_fetchresult
96 char *basename; /* name of database that provided record */
97 int len; /* length of record */
98 char *record; /* record */
99 int last_in_set; /* is it? */
100 int errcode; /* 0==success */
101 char *errstring; /* system error string or NULL */
104 typedef struct bend_deleterequest
107 } bend_deleterequest;
109 typedef struct bend_deleteresult
111 int errcode; /* 0==success */
112 char *errstring; /* system error string or NULL */
115 bend_initresult *bend_init(bend_initrequest *r);
117 bend_searchresult *bend_search(void *handle, bend_searchrequest *r, int *fd);
118 bend_searchresult *bend_searchresponse(void *handle);
120 bend_fetchresult *bend_fetch(void *handle, bend_fetchrequest *r, int *fd);
121 bend_fetchresult *bend_fetchresponse(void *handle);
123 bend_scanresult *bend_scan(void *handle, bend_scanrequest *r, int *fd);
124 bend_scanresult *bend_scanresponse(void *handle);
126 bend_deleteresult *bend_delete(void *handle, bend_deleterequest *r, int *fd);
127 bend_deleteresult *bend_deleteresponse(void *handle);
129 void bend_close(void *handle);