X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=rset%2Frsisams.c;h=683a54592a057d90b9374ffd51c327bb9c21f199;hb=6f514a5c6e5430d6bd9cc036e0faaa4477d04410;hp=e6d4ffe323451678b016854edcd7a0b8f267f4dd;hpb=896c0427df9d8eff5de6a1735dcd992e067df844;p=idzebra-moved-to-github.git

diff --git a/rset/rsisams.c b/rset/rsisams.c
index e6d4ffe..683a545 100644
--- a/rset/rsisams.c
+++ b/rset/rsisams.c
@@ -1,4 +1,4 @@
-/* $Id: rsisams.c,v 1.3 2002-08-02 19:26:57 adam Exp $
+/* $Id: rsisams.c,v 1.13 2004-09-09 10:08:06 heikki Exp $
    Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
    Index Data Aps
 
@@ -24,27 +24,26 @@ Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 
 #include <stdio.h>
 #include <assert.h>
-#include <rsisams.h>
 #include <zebrautl.h>
+#include <rset.h>
 
-static void *r_create(RSET ct, const struct rset_control *sel, void *parms);
 static RSFD r_open (RSET ct, int flag);
 static void r_close (RSFD rfd);
 static void r_delete (RSET ct);
 static void r_rewind (RSFD rfd);
-static int r_count (RSET ct);
-static int r_read (RSFD rfd, void *buf, int *term_index);
+static int r_read (RSFD rfd, void *buf);
 static int r_write (RSFD rfd, const void *buf);
+static void r_pos (RSFD rfd, double *current, double *total);
 
 static const struct rset_control control = 
 {
     "isams",
-    r_create,
+    r_delete,
     r_open,
     r_close,
-    r_delete,
     r_rewind,
-    r_count,
+    rset_default_forward,
+    r_pos,
     r_read,
     r_write,
 };
@@ -53,79 +52,62 @@ const struct rset_control *rset_kind_isams = &control;
 
 struct rset_pp_info {
     ISAMS_PP pt;
-    struct rset_pp_info *next;
-    struct rset_isams_info *info;
 };
 
 struct rset_isams_info {
     ISAMS   is;
     ISAMS_P pos;
-    struct rset_pp_info *ispt_list;
 };
 
-static void *r_create(RSET ct, const struct rset_control *sel, void *parms)
+
+RSET rsisams_create( NMEM nmem, const struct key_control *kcontrol, int scope,
+            ISAMS is, ISAMS_P pos)
 {
-    rset_isams_parms *pt = (struct rset_isams_parms *) parms;
+    RSET rnew=rset_create_base(&control, nmem, kcontrol, scope);
     struct rset_isams_info *info;
+    info = (struct rset_isams_info *) nmem_malloc(rnew->nmem,sizeof(*info));
+    rnew->priv=info;
+    info->is=is;
+    info->pos=pos;
+    return rnew;
+}
 
-    ct->flags |= RSET_FLAG_VOLATILE;
-    info = (struct rset_isams_info *) xmalloc (sizeof(*info));
-    info->is = pt->is;
-    info->pos = pt->pos;
-    info->ispt_list = NULL;
-    ct->no_rset_terms = 1;
-    ct->rset_terms = (RSET_TERM *) xmalloc (sizeof(*ct->rset_terms));
-    ct->rset_terms[0] = pt->rset_term;
-    return info;
+static void r_delete (RSET ct)
+{
+    logf (LOG_DEBUG, "rsisams_delete");
+    rset_delete(ct);
 }
 
+
 RSFD r_open (RSET ct, int flag)
 {
-    struct rset_isams_info *info = (struct rset_isams_info *) ct->buf;
+    struct rset_isams_info *info = (struct rset_isams_info *) ct->priv;
+    RSFD rfd;
     struct rset_pp_info *ptinfo;
 
     logf (LOG_DEBUG, "risams_open");
     if (flag & RSETF_WRITE)
     {
-	logf (LOG_FATAL, "ISAMS set type is read-only");
-	return NULL;
+        logf (LOG_FATAL, "ISAMS set type is read-only");
+        return NULL;
+    }
+    rfd=rfd_create_base(ct);
+    if (rfd->priv)
+        ptinfo=(struct rset_pp_info *)(rfd->priv);
+    else {
+        ptinfo = (struct rset_pp_info *) nmem_malloc(ct->nmem,sizeof(*ptinfo));
+        ptinfo->pt = isams_pp_open (info->is, info->pos);
+        rfd->priv=ptinfo;
     }
-    ptinfo = (struct rset_pp_info *) xmalloc (sizeof(*ptinfo));
-    ptinfo->next = info->ispt_list;
-    info->ispt_list = ptinfo;
-    ptinfo->pt = isams_pp_open (info->is, info->pos);
-    ptinfo->info = info;
-    if (ct->rset_terms[0]->nn < 0)
-	ct->rset_terms[0]->nn = isams_pp_num (ptinfo->pt);
-    return ptinfo;
+    return rfd;
 }
 
 static void r_close (RSFD rfd)
 {
-    struct rset_isams_info *info = ((struct rset_pp_info*) rfd)->info;
-    struct rset_pp_info **ptinfop;
-
-    for (ptinfop = &info->ispt_list; *ptinfop; ptinfop = &(*ptinfop)->next)
-        if (*ptinfop == rfd)
-        {
-            isams_pp_close ((*ptinfop)->pt);
-            *ptinfop = (*ptinfop)->next;
-            xfree (rfd);
-            return;
-        }
-    logf (LOG_FATAL, "r_close but no rfd match!");
-    assert (0);
-}
+    struct rset_pp_info *ptinfo=(struct rset_pp_info *)(rfd->priv);
 
-static void r_delete (RSET ct)
-{
-    struct rset_isams_info *info = (struct rset_isams_info *) ct->buf;
-
-    logf (LOG_DEBUG, "rsisams_delete");
-    assert (info->ispt_list == NULL);
-    rset_term_destroy (ct->rset_terms[0]);
-    xfree (ct->rset_terms);
-    xfree (info);
+    isams_pp_close (ptinfo->pt);
+    rfd_delete_base(rfd);
 }
 
 static void r_rewind (RSFD rfd)
@@ -134,15 +116,11 @@ static void r_rewind (RSFD rfd)
     abort ();
 }
 
-static int r_count (RSET ct)
-{
-    return 0;
-}
 
-static int r_read (RSFD rfd, void *buf, int *term_index)
+static int r_read (RSFD rfd, void *buf)
 {
-    *term_index = 0;
-    return isams_pp_read( ((struct rset_pp_info*) rfd)->pt, buf);
+    struct rset_pp_info *ptinfo=(struct rset_pp_info *)(rfd->priv);
+    return isams_pp_read(ptinfo->pt, buf);
 }
 
 static int r_write (RSFD rfd, const void *buf)
@@ -150,3 +128,9 @@ static int r_write (RSFD rfd, const void *buf)
     logf (LOG_FATAL, "ISAMS set type is read-only");
     return -1;
 }
+
+static void r_pos (RSFD rfd, double *current, double *total)
+{
+    *current=-1;  /* sorry, not implemented yet */
+    *total=-1;
+}