/*
- * Copyright (c) 1995, Index Data.
+ * Copyright (c) 1995-1998, Index Data.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation, in whole or in part, for any purpose, is hereby granted,
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*
+ * $Log: backend.h,v $
+ * Revision 1.17 1998-01-29 13:15:35 adam
+ * Implemented sort for the backend interface.
+ *
+ * Revision 1.16 1997/09/17 12:10:31 adam
+ * YAZ version 1.4.
+ *
*/
#ifndef BACKEND_H
#define BACKEND_H
+#include <yconfig.h>
#include <proto.h>
#include <statserv.h>
-typedef struct bend_initrequest
-{
- char *configname;
- Z_IdAuthentication *auth;
-} bend_initrequest;
-
-typedef struct bend_initresult
-{
- int errcode; /* 0==OK */
- char *errstring; /* system error string or NULL */
- void *handle; /* private handle to the backend module */
-} bend_initresult;
+#ifdef __cplusplus
+extern "C" {
+#endif
-bend_initresult *bend_init(bend_initrequest *r);
typedef struct bend_searchrequest
{
int num_bases; /* number of databases in list */
char **basenames; /* databases to search */
Z_Query *query; /* query structure */
+ ODR stream; /* encoding stream */
} bend_searchrequest;
typedef struct bend_searchresult
char *errstring; /* system error string or NULL */
} bend_searchresult;
-bend_searchresult *bend_search(void *handle, bend_searchrequest *r, int *fd);
-bend_searchresult *bend_searchresponse(void *handle);
+YAZ_EXPORT bend_searchresult *bend_search(void *handle, bend_searchrequest *r,
+ int *fd);
+YAZ_EXPORT bend_searchresult *bend_searchresponse(void *handle);
typedef struct bend_fetchrequest
{
char *setname; /* set name */
int number; /* record number */
oid_value format; /* One of the CLASS_RECSYN members */
+ Z_RecordComposition *comp; /* Formatting instructions */
+ ODR stream; /* encoding stream - memory source if required */
} bend_fetchrequest;
typedef struct bend_fetchresult
{
char *basename; /* name of database that provided record */
- int len; /* length of record */
+ int len; /* length of record or -1 if structured */
char *record; /* record */
int last_in_set; /* is it? */
oid_value format; /* format */
char *errstring; /* system error string or NULL */
} bend_fetchresult;
-bend_fetchresult *bend_fetch(void *handle, bend_fetchrequest *r, int *fd);
-bend_fetchresult *bend_fetchresponse(void *handle);
+YAZ_EXPORT bend_fetchresult *bend_fetch(void *handle, bend_fetchrequest *r,
+ int *fd);
+YAZ_EXPORT bend_fetchresult *bend_fetchresponse(void *handle);
typedef struct bend_scanrequest
{
int num_bases; /* number of elements in databaselist */
char **basenames; /* databases to search */
+ oid_value attributeset;
Z_AttributesPlusTerm *term;
int term_position; /* desired index of term in result list */
int num_entries; /* number of entries requested */
+ ODR stream; /* encoding stream - memory source if required */
} bend_scanrequest;
+struct scan_entry {
+ char *term;
+ int occurrences;
+};
+
+typedef enum {
+ BEND_SCAN_SUCCESS, /* ok */
+ BEND_SCAN_PARTIAL /* not all entries could be found */
+} bend_scan_status;
+
typedef struct bend_scanresult
{
int num_entries;
- struct scan_entry
- {
- char *term;
- int occurrences;
- } *entries;
+ struct scan_entry *entries;
int term_position;
- enum
- {
- BEND_SCAN_SUCCESS, /* ok */
- BEND_SCAN_PARTIAL /* not all entries could be found */
- } status;
+ bend_scan_status status;
int errcode;
char *errstring;
} bend_scanresult;
-bend_scanresult *bend_scan(void *handle, bend_scanrequest *r, int *fd);
-bend_scanresult *bend_scanresponse(void *handle);
+YAZ_EXPORT bend_scanresult *bend_scan(void *handle, bend_scanrequest *r,
+ int *fd);
+YAZ_EXPORT bend_scanresult *bend_scanresponse(void *handle);
typedef struct bend_deleterequest
{
char *errstring; /* system error string or NULL */
} bend_deleteresult;
-bend_deleteresult *bend_delete(void *handle, bend_deleterequest *r, int *fd);
-bend_deleteresult *bend_deleteresponse(void *handle);
+YAZ_EXPORT bend_deleteresult *bend_delete(void *handle,
+ bend_deleterequest *r, int *fd);
+YAZ_EXPORT bend_deleteresult *bend_deleteresponse(void *handle);
+
+YAZ_EXPORT void bend_close(void *handle);
+
+typedef struct bend_sortrequest
+{
+ int num_input_setnames;
+ char **input_setnames;
+ char *output_setname;
+ Z_SortKeySpecList *sort_sequence;
+ ODR stream;
+} bend_sortrequest;
+
+typedef struct bend_sortresult
+{
+ int sort_status;
+ int errcode;
+ char *errstring;
+} bend_sortresult;
+
+typedef struct bend_initrequest
+{
+ char *configname;
+ Z_IdAuthentication *auth;
+ ODR stream; /* encoding stream */
+
+ int (*bend_sort) (void *handle, bend_sortrequest *req,
+ bend_sortresult *res);
+} bend_initrequest;
-void bend_close(void *handle);
+typedef struct bend_initresult
+{
+ int errcode; /* 0==OK */
+ char *errstring; /* system error string or NULL */
+ void *handle; /* private handle to the backend module */
+} bend_initresult;
+
+YAZ_EXPORT bend_initresult MDF *bend_init(bend_initrequest *r);
+
+#ifdef __cplusplus
+}
+#endif
#endif