/*
- * 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 1.2 1994-11-04 13:21:21 quinn
+ * Revision 1.10 1995-10-12 12:40:36 adam
+ * Private info (buf) moved from struct rset_control to struct rset.
+ * Member control in rset is statically set in rset_create.
+ *
+ * Revision 1.9 1995/10/10 14:00:01 adam
+ * Function rset_open changed its wflag parameter to general flags.
+ *
+ * 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
#ifndef RSET_H
#define RSET_H
+#include <stdlib.h>
+
+typedef void *RSFD;
+
+typedef struct rset *RSET;
+
typedef struct rset_control
{
char *desc; /* text description of set type (for debugging) */
- char *buf; /* state data stored by subsystem */
- struct rset_control *(*f_create)(const struct rset_control *sel, void *parms);
- int (*f_open)(struct rset_control *ct, int wflag);
- void (*f_close)(struct rset_control *ct);
- void (*f_delete)(struct rset_control *ct);
- void (*f_rewind)(struct rset_control *ct);
- int (*f_count)(struct rset_control *ct);
- int (*f_read)(struct rset_control *ct, void *buf);
- int (*f_write)(struct rset_control *ct, const void *buf);
+ void *(*f_create)(const struct rset_control *sel, void *parms);
+ RSFD (*f_open)(RSET ct, int wflag);
+ void (*f_close)(RSFD rfd);
+ void (*f_delete)(RSET ct);
+ void (*f_rewind)(RSFD rfd);
+ int (*f_count)(RSET 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
{
- int is_open;
- rset_control *control;
-} rset, *RSET;
+ const rset_control *control;
+ void *buf;
+} rset;
+
+#define RSETF_READ 0
+#define RSETF_WRITE 1
+
+#define RSETF_SORT_SYSNO 0
+#define RSETF_SORT_RANK 2
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)))
+#define rset_open(rs, wflag) ((*(rs)->control->f_open)((rs), (wflag)))
/* void rset_close(RSET rs); */
-#define rset_close(rs) ((*(rs)->control->f_close)((rs)->control))
+#define rset_close(rs, rfd) ((*(rs)->control->f_close)((rfd)))
void rset_delete(RSET rs);
/* void rset_rewind(RSET rs); */
-#define rset_rewind(rs, wflag) ((*(rs)->control->f_rewind)((rs)->control))
+#define rset_rewind(rs, rfd) ((*(rs)->control->f_rewind)((rfd)))
/* int rset_count(RSET rs); */
-#define rset_count(rs, wflag) ((*(rs)->control->f_count)((rs)->control))
+#define rset_count(rs) ((*(rs)->control->f_count)(rs))
+
+/* 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_read(RSET rs, void *buf); /* change parameters */
-int rset_write(RSET rs, void *buf); /* change parameters */
+/* int rset_score(RSET rs, int *buf); */
+#define rset_score(rs, fd, score) ((*(rs)->control->f_score)((fd), (score)))
#endif