--- /dev/null
+/*
+ * Copyright (C) 1994-1995, Index Data I/S
+ * All rights reserved.
+ * Sebastian Hammer, Adam Dickmeiss
+ *
+ * $Log: rsnull.h,v $
+ * Revision 1.1 1995-09-06 10:36:16 adam
+ * Null set implemented.
+ *
+ */
+
+#ifndef RSET_NULL_H
+#define RSET_NULL_H
+
+#include <rset.h>
+
+extern const rset_control *rset_kind_null;
+
+#endif
# Copyright (C) 1994, Index Data I/S
# All rights reserved.
# Sebastian Hammer, Adam Dickmeiss
-# $Id: Makefile,v 1.4 1995-09-04 12:33:55 adam Exp $
+# $Id: Makefile,v 1.5 1995-09-06 10:35:44 adam Exp $
SHELL=/bin/sh
RANLIB=ranlib
DEFS=$(INCLUDE)
LIB=../lib/rset.a
PROG=
-PO=rset.o rstemp.o rsisam.o
+PO=rset.o rstemp.o rsisam.o rsnull.o
CPP=cc -E
all: $(LIB)
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: rsisam.c,v $
- * Revision 1.6 1995-09-05 11:43:24 adam
+ * Revision 1.7 1995-09-06 10:35:44 adam
+ * Null set implemented.
+ *
+ * Revision 1.6 1995/09/05 11:43:24 adam
* Complete version of temporary sets. Not tested yet though.
*
* Revision 1.5 1995/09/04 12:33:56 adam
rset_control *newct;
rset_isam_parms *pt = parms;
- logf (LOG_DEBUG, "risam_create(%s)", sel->desc);
+ logf (LOG_DEBUG, "rsisam_create(%s)", sel->desc);
newct = xmalloc(sizeof(*newct));
memcpy(newct, sel, sizeof(*sel));
if (!(newct->buf = (char*) is_position(pt->is, pt->pos)))
static void r_delete(rset_control *ct)
{
- logf (LOG_DEBUG, "risam_delete");
+ logf (LOG_DEBUG, "rsisam_delete");
is_pt_free((ISPT) ct->buf);
xfree(ct);
}
static void r_rewind(rset_control *ct)
{
- logf (LOG_DEBUG, "risam_rewind");
+ logf (LOG_DEBUG, "rsisam_rewind");
is_rewind((ISPT) ct->buf);
}
--- /dev/null
+/*
+ * Copyright (C) 1994-1995, Index Data I/S
+ * All rights reserved.
+ * Sebastian Hammer, Adam Dickmeiss
+ *
+ * $Log: rsnull.c,v $
+ * Revision 1.1 1995-09-06 10:35:44 adam
+ * Null set implemented.
+ *
+ */
+
+#include <stdio.h>
+#include <rsnull.h>
+#include <alexutil.h>
+
+static rset_control *r_create(const struct rset_control *sel, void *parms);
+static int r_open (rset_control *ct, int wflag);
+static void r_close (rset_control *ct);
+static void r_delete (rset_control *ct);
+static void r_rewind (rset_control *ct);
+static int r_count (rset_control *ct);
+static int r_read (rset_control *ct, void *buf);
+static int r_write (rset_control *ct, const void *buf);
+
+static const rset_control control =
+{
+ "NULL set type",
+ 0,
+ r_create,
+ r_open,
+ r_close,
+ r_delete,
+ r_rewind,
+ r_count,
+ r_read,
+ r_write
+};
+
+const rset_control *rset_kind_null = &control;
+
+static rset_control *r_create(const struct rset_control *sel, void *parms)
+{
+ rset_control *newct;
+
+ logf (LOG_DEBUG, "rsnull_create(%s)", sel->desc);
+ newct = xmalloc(sizeof(*newct));
+ memcpy(newct, sel, sizeof(*sel));
+ return newct;
+}
+
+static int r_open(rset_control *ct, int wflag)
+{
+ if (wflag)
+ {
+ logf (LOG_FATAL, "NULL set type is read-only");
+ return -1;
+ }
+ return 0;
+}
+
+static void r_close(rset_control *ct)
+{
+ /* NOP */
+}
+
+static void r_delete(rset_control *ct)
+{
+ xfree(ct);
+}
+
+static void r_rewind(rset_control *ct)
+{
+ logf (LOG_DEBUG, "rsnull_rewind");
+}
+
+static int r_count (rset_control *ct)
+{
+ return 0;
+}
+
+static int r_read (rset_control *ct, void *buf)
+{
+ return 0;
+}
+
+static int r_write (rset_control *ct, const void *buf)
+{
+ logf (LOG_FATAL, "NULL set type is read-only");
+ return -1;
+}