Added several type casts and changed many types - mostly from int to zint.

[idzebra-moved-to-github.git] / include / rset.h

diff --git a/include/rset.h b/include/rset.h
index 789ae9d..b6da795 100644 (file)
--- a/include/rset.h
+++ b/include/rset.h
@@ -1,41 +1,127 @@
-/*
- * Copyright (C) 1994, 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
- * Result set manipulation
- *
- */
+/* $Id: rset.h,v 1.27 2004-08-06 12:28:22 adam Exp $
+   Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
+   Index Data Aps
+
+This file is part of the Zebra server.
+
+Zebra is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Zebra; see the file LICENSE.zebra.  If not, write to the
+Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.
+*/
+
+
 
 #ifndef RSET_H
 #define RSET_H
 
-typedef struct rset_control
+#include <stdlib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+typedef void *RSFD;
+
+typedef struct rset *RSET;
+typedef struct rset_term *RSET_TERM;
+
+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)(...);
-} rset_control;
+    char *desc; /* text description of set type (for debugging) */
+    void *(*f_create)(RSET ct, 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_forward)(RSET ct, RSFD rfd, void *buf,  int *term_index,
+                     int (*cmpfunc)(const void *p1, const void *p2), 
+                     const void *untilbuf);
+    void (*f_pos)(RSFD rfd, double *current, double *total);
+       /* returns -1,-1 if pos function not implemented for this type */
+    int (*f_read)(RSFD rfd, void *buf, int *term_index);
+    int (*f_write)(RSFD rfd, const void *buf);
+};
+
+int rset_default_forward(RSET ct, RSFD rfd, void *buf, int *term_index, 
+                     int (*cmpfunc)(const void *p1, const void *p2), 
+                     const void *untilbuf);
+void rset_default_pos(RSFD rfd, double *current, double *total);
+
+struct rset_term {
+    char *name;
+    zint nn;
+    char *flags;
+    int  count;
+    int  type;
+};
 
 typedef struct rset
 {
-    rset_control *control;
-} rset *RSET;
+    const struct rset_control *control;
+    int  flags;
+    int  count;
+    void *buf;
+    RSET_TERM *rset_terms;
+    int no_rset_terms;
+} rset;
+
+RSET_TERM rset_term_create (const char *name, int length, const char *flags,
+                            int type);
+void rset_term_destroy (RSET_TERM t);
+RSET_TERM rset_term_dup (RSET_TERM t);
+
+#define RSETF_READ       0
+#define RSETF_WRITE      1
+
+RSET rset_create(const struct rset_control *sel, void *parms); 
+/* parameters? */
+
+/* int rset_open(RSET rs, int wflag); */
+#define rset_open(rs, wflag) (*(rs)->control->f_open)((rs), (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 */
+
+RSET rset_dup (RSET rs);
+
+/* void rset_rewind(RSET rs); */
+#define rset_rewind(rs, rfd) (*(rs)->control->f_rewind)((rfd))
+
+/* int rset_forward(RSET rs, void *buf, int *indx, void *untilbuf); */
+#define rset_forward(rs, fd, buf, indx, cmpfunc, untilbuf) \
+    (*(rs)->control->f_forward)((rs), (fd), (buf), (indx), (cmpfunc), (untilbuf))
+
+/* int rset_pos(RSET rs, RSFD fd, double *current, double *total); */
+#define rset_pos(rs,fd,cur,tot) \
+    (*(rs)->control->f_pos)( (fd),(cur),(tot))
+
+/* int rset_read(RSET rs, void *buf, int *indx); */
+#define rset_read(rs, fd, buf, indx) (*(rs)->control->f_read)((fd), (buf), indx)
+
+/* int rset_write(RSET rs, const void *buf); */
+#define rset_write(rs, fd, buf) (*(rs)->control->f_write)((fd), (buf))
+
+/* int rset_type (RSET) */
+#define rset_type(rs) ((rs)->control->desc)
+
+#define RSET_FLAG_VOLATILE 1
+
+#define rset_is_volatile(rs) ((rs)->flags & RSET_FLAG_VOLATILE)
+
+#ifdef __cplusplus
+}
+#endif
 
 #endif