-/* $Id: rset.h,v 1.20 2004-01-16 18:04:33 heikki Exp $
+/* $Id: rset.h,v 1.21 2004-01-30 11:43:40 heikki Exp $
Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
Index Data Aps
void (*f_close)(RSFD rfd);
void (*f_delete)(RSET ct);
void (*f_rewind)(RSFD rfd);
- int (*f_forward)(RSFD rfd, void *buf, const void *untilbuf);
+ int (*f_forward)(RSET ct, RSFD rfd, void *buf, int *term_index,
+ int (*cmpfunc)(const void *p1, const void *p2),
+ const void *untilbuf);
int (*f_count)(RSET ct);
int (*f_read)(RSFD rfd, void *buf, int *term_index);
int (*f_write)(RSFD rfd, const void *buf);
};
-int rset_default_forward(RSFD rfd, void *buf, const void *untilbuf);
+int rset_default_forward(RSET ct, RSFD rfd, void *buf, int *term_index,
+ int (*cmpfunc)(const void *p1, const void *p2),
+ const void *untilbuf);
struct rset_term {
char *name;
/* 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_count(RSET rs); */
#define rset_count(rs) (*(rs)->control->f_count)(rs)
-/* int rset_read(RSET rs, void *buf); */
+/* 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); */
-/* $Id: rsbool.c,v 1.23 2004-01-16 15:27:35 heikki Exp $
+/* $Id: rsbool.c,v 1.24 2004-01-30 11:43:41 heikki Exp $
Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003
Index Data Aps
#include <rsbool.h>
#include <zebrautl.h>
+#include <../index/index.h> /* for log_keydump. Debugging only */
+
+
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_forward(RSET ct, RSFD rfd, void *buf, int *term_index,
+ int (*cmpfunc)(const void *p1, const void *p2),
+ const void *untilbuf);
static int r_count (RSET ct);
static int r_read_and (RSFD rfd, void *buf, int *term_index);
static int r_read_or (RSFD rfd, void *buf, int *term_index);
r_close,
r_delete,
r_rewind,
- rset_default_forward,
+ r_forward, /*rset_default_forward,*/
r_count,
r_read_and,
r_write,
r_close,
r_delete,
r_rewind,
+#if 1
+ r_forward,
+#else
rset_default_forward,
+#endif
r_count,
r_read_or,
r_write,
r_close,
r_delete,
r_rewind,
- rset_default_forward,
+ r_forward,
r_count,
r_read_not,
r_write,
p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r, &p->term_index_r);
}
+static int r_forward(RSET ct, RSFD rfd, void *buf, int *term_index,
+ int (*cmpfunc)(const void *p1, const void *p2),
+ const void *untilbuf)
+{
+ struct rset_bool_info *info = ((struct rset_bool_rfd*)rfd)->info;
+ struct rset_bool_rfd *p = (struct rset_bool_rfd *) rfd;
+ int cmp=0;
+
+ logf (LOG_DEBUG, "rsbool_forward '%s' (ct=%p rfd=%p m=%d,%d)",
+ ct->control->desc, ct, rfd, p->more_l, p->more_r);
+ if ( p->more_l)
+ p->more_l = rset_forward(info->rset_l, p->rfd_l, p->buf_l,
+ &p->term_index_l, info->cmp, untilbuf);
+ if ( p->more_r)
+ p->more_r = rset_forward(info->rset_r, p->rfd_r, p->buf_r,
+ &p->term_index_r, info->cmp, untilbuf);
+ if (p->more_l && p->more_r)
+ cmp = (*info->cmp)(p->buf_l, p->buf_r);
+ else if (p->more_l)
+ cmp = -2;
+ else
+ cmp = 2;
+ if ( (cmp<0) && (p->more_l) )
+ {
+ memcpy (buf, p->buf_l, info->key_size);
+ *term_index = p->term_index_l;
+ } else if ( (cmp>0) && (p->more_r) )
+ {
+ memcpy (buf, p->buf_r, info->key_size);
+ *term_index = p->term_index_r + info->term_index_s;
+ }
+ return ( p->more_l || p->more_r);
+}
+
static int r_count (RSET ct)
{
return 0;
cmp = -2;
else
cmp = 2;
+ logf (LOG_DEBUG, "r_read_and looping: m=%d/%d c=%d t=%d",
+ p->more_l, p->more_r, cmp, p->tail);
+ key_logdump(LOG_DEBUG,p->buf_l);
+ key_logdump(LOG_DEBUG,p->buf_r);
if (!cmp)
{
memcpy (buf, p->buf_l, info->key_size);
- *term_index = p->term_index_l;
+ *term_index = p->term_index_l;
p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
&p->term_index_l);
p->tail = 1;
else if (cmp == 1)
{
memcpy (buf, p->buf_r, info->key_size);
- *term_index = p->term_index_r + info->term_index_s;
+ *term_index = p->term_index_r + info->term_index_s;
p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
&p->term_index_r);
p->tail = 1;
+ logf (LOG_DEBUG, "r_read_and returning A m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ key_logdump(LOG_DEBUG,buf);
return 1;
}
else if (cmp == -1)
{
memcpy (buf, p->buf_l, info->key_size);
- *term_index = p->term_index_l;
+ *term_index = p->term_index_l;
p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
&p->term_index_l);
p->tail = 1;
+ logf (LOG_DEBUG, "r_read_and returning B m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ key_logdump(LOG_DEBUG,buf);
return 1;
}
else if (cmp > 1)
{
+#define OLDCODE 0
+#if OLDCODE
memcpy (buf, p->buf_r, info->key_size);
*term_index = p->term_index_r + info->term_index_s;
{
if (!p->more_r || (*info->cmp)(p->buf_r, buf) > 1)
p->tail = 0;
+ logf (LOG_DEBUG, "r_read_and returning C m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ key_logdump(LOG_DEBUG,buf);
return 1;
}
+#else
+
+ if (p->tail)
+ {
+ logf (LOG_DEBUG, "r_read_and returning R tail m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ memcpy (buf, p->buf_r, info->key_size);
+ *term_index = p->term_index_r + info->term_index_s;
+ p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
+ &p->term_index_r);
+ if (!p->more_r || (*info->cmp)(p->buf_r, buf) > 1)
+ p->tail = 0;
+ logf (LOG_DEBUG, "r_read_and returning D m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ key_logdump(LOG_DEBUG,buf);
+ return 1;
+ } else
+ {
+ logf (LOG_DEBUG, "r_read_and about to forward R m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ if (p->more_r && p->more_l)
+ p->more_r = rset_forward(
+ info->rset_r, p->rfd_r,
+ p->buf_r, &p->term_index_r,
+ (info->cmp), p->buf_l);
+ else
+ return 0; /* no point in reading further */
+ }
+#endif
}
else
{
- memcpy (buf, p->buf_l, info->key_size);
- *term_index = p->term_index_l;
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
- &p->term_index_l);
+#if OLDCODE
+ memcpy (buf, p->buf_l, info->key_size);
+ *term_index = p->term_index_l;
+ p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
+ &p->term_index_l);
+ if (p->tail)
+ {
+ if (!p->more_l || (*info->cmp)(p->buf_l, buf) > 1)
+ p->tail = 0;
+ logf (LOG_DEBUG, "r_read_and returning E m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ key_logdump(LOG_DEBUG,buf);
+ return 1;
+ }
+#else
if (p->tail)
{
+ logf (LOG_DEBUG, "r_read_and returning L tail m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ memcpy (buf, p->buf_l, info->key_size);
+ *term_index = p->term_index_l;
+ p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
+ &p->term_index_l);
if (!p->more_l || (*info->cmp)(p->buf_l, buf) > 1)
p->tail = 0;
+ logf (LOG_DEBUG, "r_read_and returning F m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ key_logdump(LOG_DEBUG,buf);
return 1;
}
+ else
+ {
+ logf (LOG_DEBUG, "r_read_and about to forward L m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ if (p->more_r && p->more_l)
+ p->more_l = rset_forward(
+ /* p->more_l = rset_default_forward( */
+ info->rset_l, p->rfd_l,
+ p->buf_l, &p->term_index_l,
+ (info->cmp), p->buf_r);
+ else
+ return 0; /* no point in reading further */
+ }
+#endif
}
}
return 0;
if (!cmp)
{
memcpy (buf, p->buf_l, info->key_size);
- *term_index = p->term_index_l;
+ *term_index = p->term_index_l;
p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
&p->term_index_l);
p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
&p->term_index_r);
+ logf (LOG_DEBUG, "r_read_or returning A m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ key_logdump(LOG_DEBUG,buf);
return 1;
}
else if (cmp > 0)
{
memcpy (buf, p->buf_r, info->key_size);
- *term_index = p->term_index_r + info->term_index_s;
+ *term_index = p->term_index_r + info->term_index_s;
p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
&p->term_index_r);
+ logf (LOG_DEBUG, "r_read_or returning B m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ key_logdump(LOG_DEBUG,buf);
return 1;
}
else
{
memcpy (buf, p->buf_l, info->key_size);
- *term_index = p->term_index_l;
+ *term_index = p->term_index_l;
p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
&p->term_index_l);
+ logf (LOG_DEBUG, "r_read_or returning C m=%d/%d c=%d",
+ p->more_l, p->more_r, cmp);
+ key_logdump(LOG_DEBUG,buf);
return 1;
}
}
if (cmp < -1)
{
memcpy (buf, p->buf_l, info->key_size);
- *term_index = p->term_index_l;
+ *term_index = p->term_index_l;
p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
&p->term_index_l);
return 1;
}
else if (cmp > 1)
+#if 0
p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
&p->term_index_r);
+#else
+ p->more_r = rset_forward(
+ info->rset_r, p->rfd_r,
+ p->buf_r, &p->term_index_r,
+ (info->cmp), p->buf_l);
+#endif
else
{
memcpy (buf, p->buf_l, info->key_size);