/*
- * Copyright (C) 1994, Index Data I/S
+ * Copyright (C) 1994-1995, Index Data I/S
* All rights reserved.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: rset.h,v $
- * Revision 1.1 1994-11-03 14:13:22 quinn
+ * Revision 1.8 1995-10-06 14:37:53 adam
+ * New result set method: r_score.
+ * Local no (sysno) and score is transferred to retrieveCtrl.
+ *
+ * Revision 1.7 1995/09/07 13:58:08 adam
+ * New parameter: result-set file descriptor (RSFD) to support multiple
+ * positions within the same result-set.
+ * Boolean operators: and, or, not implemented.
+ *
+ * Revision 1.6 1995/09/06 16:10:58 adam
+ * More work on boolean sets.
+ *
+ * Revision 1.5 1995/09/04 15:20:13 adam
+ * More work on temp sets. is_open member removed.
+ *
+ * Revision 1.4 1995/09/04 09:09:52 adam
+ * String arg in dict lookup is const.
+ * Minor changes.
+ *
+ * Revision 1.3 1994/11/22 13:15:27 quinn
+ * Simple
+ *
+ * Revision 1.2 1994/11/04 13:21:21 quinn
+ * Working.
+ *
+ * Revision 1.1 1994/11/03 14:13:22 quinn
* Result set manipulation
*
*/
#ifndef RSET_H
#define RSET_H
+#include <stdlib.h>
+
+typedef void *RSFD;
+
typedef struct rset_control
{
- char *buf; /* state data stored by subsystem */
- int (*f_open)(rset_control *ct, int wflag);
- void (*f_close)(rset_control *ct *data);
- void (*f_delete)(rset_control *ct);
- void (*f_rewind)(rset_control *ct);
- int (*f_count)(rset_control *ct);
- int (*f_read)(...);
- int (*f_write)(...);
+ char *desc; /* text description of set type (for debugging) */
+ void *buf; /* state data stored by subsystem */
+ struct rset_control *(*f_create)(const struct rset_control *sel, void *parms);
+ RSFD (*f_open)(struct rset_control *ct, int wflag);
+ void (*f_close)(RSFD rfd);
+ void (*f_delete)(struct rset_control *ct);
+ void (*f_rewind)(RSFD rfd);
+ int (*f_count)(struct rset_control *ct);
+ int (*f_read)(RSFD rfd, void *buf);
+ int (*f_write)(RSFD rfd, const void *buf);
+ int (*f_score)(RSFD rfd, int *score);
} rset_control;
typedef struct rset
{
rset_control *control;
-} rset *RSET;
+} rset, *RSET;
+
+RSET rset_create(const rset_control *sel, void *parms); /* parameters? */
+
+/* int rset_open(RSET rs, int wflag); */
+#define rset_open(rs, wflag) ((*(rs)->control->f_open)((rs)->control, (wflag)))
+
+/* void rset_close(RSET rs); */
+#define rset_close(rs, rfd) ((*(rs)->control->f_close)((rfd)))
-RSET rset_create(); /* parameters? */
-int rset_open(RSET rs, int wflag);
-void rset_close(RSET rs);
void rset_delete(RSET rs);
-void rset_rewind(RSET rs);
-int rset_count(RSET rs); /* more parameters? */
-int rset_read(RSET rs, void *buf); /* change parameters */
-int rset_write(RSET rs, void *buf); /* change parameters */
+
+/* void rset_rewind(RSET rs); */
+#define rset_rewind(rs, rfd) ((*(rs)->control->f_rewind)((rfd)))
+
+/* int rset_count(RSET rs); */
+#define rset_count(rs) ((*(rs)->control->f_count)((rs)->control))
+
+/* int rset_read(RSET rs, void *buf); */
+#define rset_read(rs, fd, buf) ((*(rs)->control->f_read)((fd), (buf)))
+
+/* int rset_write(RSET rs, const void *buf); */
+#define rset_write(rs, fd, buf) ((*(rs)->control->f_write)((fd), (buf)))
+
+/* int rset_score(RSET rs, int *buf); */
+#define rset_score(rs, fd, score) ((*(rs)->control->f_score)((fd), (score)))
#endif