X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=include%2Fbackend.h;h=603908734dde0fcd08574b034309ef2b1d7e7b86;hb=20928b0dc31d2895dcc926f1c4192abaf25eca36;hp=7d5dcefcf13920a2b8ece70e3e62fbaacf37e03a;hpb=bf4149c63ad2e11429e302a89f472de52b4d7ce8;p=yaz-moved-to-github.git

diff --git a/include/backend.h b/include/backend.h
index 7d5dcef..6039087 100644
--- a/include/backend.h
+++ b/include/backend.h
@@ -1,5 +1,5 @@
 /*
- * 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,
@@ -23,6 +23,13 @@
  * 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
@@ -36,20 +43,6 @@
 extern "C" {
 #endif
 
-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;
-
-bend_initresult MDF *bend_init(bend_initrequest *r);   
 
 typedef struct bend_searchrequest
 {
@@ -58,6 +51,7 @@ 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
@@ -67,8 +61,9 @@ 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
 {
@@ -90,8 +85,9 @@ typedef struct bend_fetchresult
     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
 {
@@ -101,28 +97,32 @@ typedef struct bend_scanrequest
     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
 {
@@ -135,10 +135,46 @@ typedef struct bend_deleteresult
     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;
+
+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;
 
-void bend_close(void *handle);
+YAZ_EXPORT bend_initresult MDF *bend_init(bend_initrequest *r);   
 
 #ifdef __cplusplus
 }