X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=rset%2Frsbool.c;h=baf8f8f3ff5f2e8a8226198a4949133115b37ea9;hb=6ec32a146d639c16e9929435fdbfd8d915e918b3;hp=a4275383b8eec0d5bf052b7c41fe93d8dfc9a166;hpb=70effaa5a4a18f1bef9c6111dc082bb8714e4c19;p=idzebra-moved-to-github.git

diff --git a/rset/rsbool.c b/rset/rsbool.c
index a427538..baf8f8f 100644
--- a/rset/rsbool.c
+++ b/rset/rsbool.c
@@ -1,4 +1,4 @@
-/* $Id: rsbool.c,v 1.45 2004-08-31 10:43:39 heikki Exp $
+/* $Id: rsbool.c,v 1.48 2004-09-30 09:53:05 heikki Exp $
    Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
    Index Data Aps
 
@@ -27,7 +27,6 @@ Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 
 #include <zebrautl.h>
 #include <rset.h>
-#include <rsbool.h>
 
 #ifndef RSET_DEBUG
 #define RSET_DEBUG 0
@@ -36,10 +35,7 @@ Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 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(RSFD rfd, void *buf,
-                     int (*cmpfunc)(const void *p1, const void *p2),
-                     const void *untilbuf);
+static int r_forward(RSFD rfd, void *buf, const void *untilbuf);
 static void r_pos (RSFD rfd, double *current, double *total); 
 static int r_read_and (RSFD rfd, void *buf);
 static int r_read_or (RSFD rfd, void *buf);
@@ -52,7 +48,6 @@ static const struct rset_control control_and =
     r_delete,
     r_open,
     r_close,
-    r_rewind,
     r_forward, 
     r_pos,    
     r_read_and,
@@ -65,7 +60,6 @@ static const struct rset_control control_or =
     r_delete,
     r_open,
     r_close,
-    r_rewind,
     r_forward, 
     r_pos,
     r_read_or,
@@ -78,7 +72,6 @@ static const struct rset_control control_not =
     r_delete,
     r_open,
     r_close,
-    r_rewind,
     r_forward, 
     r_pos,
     r_read_not,
@@ -87,15 +80,12 @@ static const struct rset_control control_not =
 
 
 const struct rset_control *rset_kind_and = &control_and;
-const struct rset_control *rset_kind_or = &control_or;
+const struct rset_control *rset_kind_or  = &control_or;
 const struct rset_control *rset_kind_not = &control_not;
 
 struct rset_bool_info {
-    int key_size;
     RSET rset_l;
     RSET rset_r;
-    int (*cmp)(const void *p1, const void *p2);
-    void (*log_item)(int logmask, const void *p, const char *txt);
 };
 
 struct rset_bool_rfd {
@@ -107,55 +97,48 @@ struct rset_bool_rfd {
     void *buf_l;
     void *buf_r;
     int tail;
-    struct rset_bool_rfd *next;
-    struct rset_bool_info *info;
 };    
 
 static RSET rsbool_create_base( const struct rset_control *ctrl,
-            NMEM nmem, int key_size, 
-            int (*cmp)(const void *p1, const void *p2),
-            RSET rset_l, RSET rset_r, 
-            void (*log_item)(int logmask, const void *p, const char *txt) )
+            NMEM nmem, const struct key_control *kcontrol,
+            int scope, 
+            RSET rset_l, RSET rset_r)
 {
-    RSET rnew=rset_create_base(ctrl, nmem);
+    RSET rnew=rset_create_base(ctrl, nmem, kcontrol, scope);
     struct rset_bool_info *info;
     info = (struct rset_bool_info *) nmem_malloc(rnew->nmem,sizeof(*info));
-    info->key_size = key_size;
     info->rset_l = rset_l;
     info->rset_r = rset_r;
-    info->cmp = cmp;
-    info->log_item = log_item;
-    
     rnew->priv=info;
     return rnew;
 }
 
 
-RSET rsbool_create_and( NMEM nmem, int key_size, 
-            int (*cmp)(const void *p1, const void *p2),
-            RSET rset_l, RSET rset_r, 
-            void (*log_item)(int logmask, const void *p, const char *txt) )
+RSET rsbool_create_and( NMEM nmem, const struct key_control *kcontrol,
+                        int scope, 
+                        RSET rset_l, RSET rset_r)
 {
-    return rsbool_create_base(rset_kind_and, nmem, key_size, cmp,
-                              rset_l, rset_r, log_item);
+    return rsbool_create_base(rset_kind_and, nmem, kcontrol,
+                              scope,
+                              rset_l, rset_r);
 }
 
-RSET rsbool_create_or( NMEM nmem, int key_size, 
-            int (*cmp)(const void *p1, const void *p2),
-            RSET rset_l, RSET rset_r, 
-            void (*log_item)(int logmask, const void *p, const char *txt) )
+RSET rsbool_create_or( NMEM nmem, const struct key_control *kcontrol,
+                        int scope, 
+                       RSET rset_l, RSET rset_r)
 {
-    return rsbool_create_base(rset_kind_or, nmem, key_size, cmp,
-                              rset_l, rset_r, log_item);
+    return rsbool_create_base(rset_kind_or, nmem, kcontrol,
+                              scope,
+                              rset_l, rset_r);
 }
 
-RSET rsbool_create_not( NMEM nmem, int key_size, 
-            int (*cmp)(const void *p1, const void *p2),
-            RSET rset_l, RSET rset_r, 
-            void (*log_item)(int logmask, const void *p, const char *txt) )
+RSET rsbool_create_not( NMEM nmem, const struct key_control *kcontrol,
+                        int scope, 
+                        RSET rset_l, RSET rset_r)
 {
-    return rsbool_create_base(rset_kind_not, nmem, key_size, cmp,
-                              rset_l, rset_r, log_item);
+    return rsbool_create_base(rset_kind_not, nmem, kcontrol,
+                              scope, 
+                              rset_l, rset_r);
 }
 
 static void r_delete (RSET ct)
@@ -184,8 +167,8 @@ static RSFD r_open (RSET ct, int flag)
     else {
         p=nmem_malloc(ct->nmem,sizeof(*p));
         rfd->priv=p;
-        p->buf_l = nmem_malloc(ct->nmem, info->key_size);
-        p->buf_r = nmem_malloc(ct->nmem, info->key_size);
+        p->buf_l = nmem_malloc(ct->nmem, ct->keycontrol->key_size);
+        p->buf_r = nmem_malloc(ct->nmem, ct->keycontrol->key_size);
     }
 
     logf(LOG_DEBUG,"rsbool (%s) open [%p]", ct->control->desc, rfd);
@@ -210,36 +193,19 @@ static void r_close (RSFD rfd)
 }
 
 
-static void r_rewind (RSFD rfd)
-{
- /* struct rset_bool_info *info = (struct rset_bool_info*)(rfd->rset->priv); */
-    struct rset_bool_rfd *p=(struct rset_bool_rfd *)rfd->priv;
-
-    logf (LOG_DEBUG, "rsbool_rewind");
-    rset_rewind (p->rfd_l);
-    rset_rewind (p->rfd_r);
-    p->more_l = rset_read (p->rfd_l, p->buf_l);
-    p->more_r = rset_read (p->rfd_r, p->buf_r);
-    p->hits=0;
-}
 
 static int r_forward (RSFD rfd, void *buf,
-                     int (*cmpfunc)(const void *p1, const void *p2),
                      const void *untilbuf)
 {
-    struct rset_bool_info *info = (struct rset_bool_info*)(rfd->rset->priv);
     struct rset_bool_rfd *p=(struct rset_bool_rfd *)rfd->priv;
-    int rc;
-
-    if ( p->more_l && ((cmpfunc)(untilbuf,p->buf_l)==2) )
-        p->more_l = rset_forward(p->rfd_l, p->buf_l,
-                        info->cmp, untilbuf);
-    if ( p->more_r && ((cmpfunc)(untilbuf,p->buf_r)==2))
-        p->more_r = rset_forward(p->rfd_r, p->buf_r,
-                        info->cmp, untilbuf);
+    const struct key_control *kctrl=rfd->rset->keycontrol;
+
+    if ( p->more_l && ((kctrl->cmp)(untilbuf,p->buf_l)>=rfd->rset->scope) )
+        p->more_l = rset_forward(p->rfd_l, p->buf_l, untilbuf);
+    if ( p->more_r && ((kctrl->cmp)(untilbuf,p->buf_r)>=rfd->rset->scope))
+        p->more_r = rset_forward(p->rfd_r, p->buf_r, untilbuf);
     p->tail=0; 
-    rc = rset_read(rfd,buf); 
-    return rc;
+    return rset_read(rfd,buf); 
 }
 
 
@@ -260,89 +226,70 @@ static int r_forward (RSFD rfd, void *buf,
 
 static int r_read_and (RSFD rfd, void *buf)
 {
-    struct rset_bool_info *info = (struct rset_bool_info*)(rfd->rset->priv);
     struct rset_bool_rfd *p=(struct rset_bool_rfd *)rfd->priv;
+    const struct key_control *kctrl=rfd->rset->keycontrol;
 
     while (p->more_l || p->more_r)
     {
         int cmp;
 
         if (p->more_l && p->more_r)
-            cmp = (*info->cmp)(p->buf_l, p->buf_r);
+            cmp = (*kctrl->cmp)(p->buf_l, p->buf_r);
         else if (p->more_l)
-            cmp = -2;
+            cmp = -rfd->rset->scope;
         else
-            cmp = 2;
+            cmp = rfd->rset->scope;
 #if RSET_DEBUG
         logf (LOG_DEBUG, "r_read_and [%p] looping: m=%d/%d c=%d t=%d",
                         rfd, p->more_l, p->more_r, cmp, p->tail);
-        (*info->log_item)(LOG_DEBUG, p->buf_l, "left ");
-        (*info->log_item)(LOG_DEBUG, p->buf_r, "right ");
+        (*kctrl->log_item)(LOG_DEBUG, p->buf_l, "left ");
+        (*kctrl->log_item)(LOG_DEBUG, p->buf_r, "right ");
 #endif
         if (!cmp)
-        {
-            memcpy (buf, p->buf_l, info->key_size);
+        {  /* cmp==0 */
+            memcpy (buf, p->buf_l, kctrl->key_size);
             p->more_l = rset_read (p->rfd_l, p->buf_l);
             p->tail = 1;
         }
-        else if (cmp == 1)
-        {
-            memcpy (buf, p->buf_r, info->key_size);
+        else if ( (cmp>0) && (cmp<rfd->rset->scope))
+        {  /* typically cmp == 1 */
+            memcpy (buf, p->buf_r, kctrl->key_size);
             p->more_r = rset_read (p->rfd_r, p->buf_r);
             p->tail = 1;
 #if RSET_DEBUG
             logf (LOG_DEBUG, "r_read_and [%p] returning R m=%d/%d c=%d",
                     rfd, p->more_l, p->more_r, cmp);
             key_logdump(LOG_DEBUG,buf);
-            (*info->log_item)(LOG_DEBUG, buf, "");
+            (*kctrl->log_item)(LOG_DEBUG, buf, "");
 #endif
             p->hits++;
             return 1;
         }
-        else if (cmp == -1)
-        {
-            memcpy (buf, p->buf_l, info->key_size);
+        else if ( (cmp<0) && (-cmp<rfd->rset->scope))
+        {  /* cmp == -1 */
+            memcpy (buf, p->buf_l, kctrl->key_size);
             p->more_l = rset_read (p->rfd_l, p->buf_l);
             p->tail = 1;
 #if RSET_DEBUG
             logf (LOG_DEBUG, "r_read_and [%p] returning L m=%d/%d c=%d",
                     rfd, p->more_l, p->more_r, cmp);
-            (*info->log_item)(LOG_DEBUG, buf, "");
+            (*kctrl->log_item)(LOG_DEBUG, buf, "");
 #endif
             p->hits++;
             return 1;
         }
-        else if (cmp > 1)  /* cmp == 2 */
-        {
-#define OLDCODE 0
-#if OLDCODE
-            memcpy (buf, p->buf_r, info->key_size);
-            
-            p->more_r = rset_read (p->rfd_r, p->buf_r);
+        else if (cmp >= rfd->rset->scope )  
+        {  /* cmp == 2 */
             if (p->tail)
             {
-                if (!p->more_r || (*info->cmp)(p->buf_r, buf) > 1)
-                    p->tail = 0;
-#if RSET_DEBUG
-                logf (LOG_DEBUG, "r_read_and returning C m=%d/%d c=%d",
-                        p->more_l, p->more_r, cmp);
-                (*info->log_item)(LOG_DEBUG, buf, "");
-#endif
-                p->hits++;
-                return 1;
-            }
-#else
-            
-            if (p->tail)
-            {
-                memcpy (buf, p->buf_r, info->key_size);
+                memcpy (buf, p->buf_r, kctrl->key_size);
                 p->more_r = rset_read (p->rfd_r, p->buf_r);
-                if (!p->more_r || (*info->cmp)(p->buf_r, buf) > 1)
+                if (!p->more_r || (*kctrl->cmp)(p->buf_r, buf) > 1)
                     p->tail = 0;
 #if RSET_DEBUG
                 logf (LOG_DEBUG, "r_read_and [%p] returning R tail m=%d/%d c=%d",
                         rfd, p->more_l, p->more_r, cmp);
-                (*info->log_item)(LOG_DEBUG, buf, "");
+                (*kctrl->log_item)(LOG_DEBUG, buf, "");
 #endif
                 p->hits++;
                 return 1;
@@ -350,45 +297,28 @@ static int r_read_and (RSFD rfd, void *buf)
             else
             {
 #if RSET_DEBUG
-                logf (LOG_DEBUG, "r_read_and [%p] about to forward R m=%d/%d c=%d",
+                logf (LOG_DEBUG, "r_read_and [%p] about to forward R "
+                                 "m=%d/%d c=%d",
                         rfd, p->more_l, p->more_r, cmp);
 #endif
                 if (p->more_r && p->more_l)
-                    p->more_r = rset_forward( p->rfd_r, 
-                                    p->buf_r, (info->cmp), p->buf_l);
+                    p->more_r = rset_forward( p->rfd_r, p->buf_r, p->buf_l);
                 else 
                     return 0; /* no point in reading further */
             }
-#endif
         }
-        else  /* cmp == -2 */
-        {
-#if OLDCODE
-             memcpy (buf, p->buf_l, info->key_size);
-             p->more_l = rset_read (p->rfd_l, p->buf_l);
-             if (p->tail)
-             {
-                 if (!p->more_l || (*info->cmp)(p->buf_l, buf) > 1)
-                     p->tail = 0;
-#if RSET_DEBUG
-                 logf (LOG_DEBUG, "r_read_and [%p] returning R tail m=%d/%d c=%d",
-                        rfd, p->more_l, p->more_r, cmp);
-                 (*info->log_item)(LOG_DEBUG, buf, "");
-#endif
-                 p->hits++;
-                 return 1;
-             }
-#else
+        else  
+        { /* cmp == -2 */
             if (p->tail)
             {
-                memcpy (buf, p->buf_l, info->key_size);
+                memcpy (buf, p->buf_l, kctrl->key_size);
                 p->more_l = rset_read (p->rfd_l, p->buf_l);
-                if (!p->more_l || (*info->cmp)(p->buf_l, buf) > 1)
+                if (!p->more_l || (*kctrl->cmp)(p->buf_l, buf) > 1)
                     p->tail = 0;
 #if RSET_DEBUG
                 logf (LOG_DEBUG, "r_read_and [%p] returning L tail m=%d/%d c=%d",
                         rfd, p->more_l, p->more_r, cmp);
-                (*info->log_item)(LOG_DEBUG, buf, "");
+                (*kctrl->log_item)(LOG_DEBUG, buf, "");
 #endif
                 p->hits++;
                 return 1;
@@ -396,16 +326,15 @@ static int r_read_and (RSFD rfd, void *buf)
             else
             {
 #if RSET_DEBUG
-                logf (LOG_DEBUG, "r_read_and [%p] about to forward L m=%d/%d c=%d",
+                logf (LOG_DEBUG, "r_read_and [%p] about to forward L "
+                                 "m=%d/%d c=%d",
                         rfd, p->more_l, p->more_r, cmp);
 #endif
                 if (p->more_r && p->more_l)
-                    p->more_l = rset_forward(p->rfd_l, 
-                                    p->buf_l, (info->cmp), p->buf_r);
+                    p->more_l = rset_forward(p->rfd_l, p->buf_l, p->buf_r);
                 else 
                     return 0; /* no point in reading further */
             }
-#endif
         }
     }
 #if RSET_DEBUG
@@ -416,52 +345,52 @@ static int r_read_and (RSFD rfd, void *buf)
 
 static int r_read_or (RSFD rfd, void *buf)
 {
-    struct rset_bool_info *info = (struct rset_bool_info*)(rfd->rset->priv);
     struct rset_bool_rfd *p=(struct rset_bool_rfd *)rfd->priv;
+    const struct key_control *kctrl=rfd->rset->keycontrol;
 
     while (p->more_l || p->more_r)
     {
         int cmp;
 
         if (p->more_l && p->more_r)
-            cmp = (*info->cmp)(p->buf_l, p->buf_r);
+            cmp = (*kctrl->cmp)(p->buf_l, p->buf_r);
         else if (p->more_r)
-            cmp = 2;
+            cmp = rfd->rset->scope;
         else
-            cmp = -2;
+            cmp = -rfd->rset->scope;
         if (!cmp)
-        {
-            memcpy (buf, p->buf_l, info->key_size);
+        { /* cmp==0 */
+            memcpy (buf, p->buf_l, kctrl->key_size);
             p->more_l = rset_read (p->rfd_l, p->buf_l);
             p->more_r = rset_read (p->rfd_r, p->buf_r);
 #if RSET_DEBUG
             logf (LOG_DEBUG, "r_read_or returning A m=%d/%d c=%d",
                     p->more_l, p->more_r, cmp);
-            (*info->log_item)(LOG_DEBUG, buf, "");
+            (*kctrl->log_item)(LOG_DEBUG, buf, "");
 #endif
             p->hits++;
             return 1;
         }
         else if (cmp > 0)
         {
-            memcpy (buf, p->buf_r, info->key_size);
+            memcpy (buf, p->buf_r, kctrl->key_size);
             p->more_r = rset_read (p->rfd_r, p->buf_r);
 #if RSET_DEBUG
             logf (LOG_DEBUG, "r_read_or returning B m=%d/%d c=%d",
                     p->more_l, p->more_r, cmp);
-            (*info->log_item)(LOG_DEBUG, buf, "");
+            (*kctrl->log_item)(LOG_DEBUG, buf, "");
 #endif
             p->hits++;
             return 1;
         }
         else
         {
-            memcpy (buf, p->buf_l, info->key_size);
+            memcpy (buf, p->buf_l, kctrl->key_size);
             p->more_l = rset_read ( p->rfd_l, p->buf_l);
 #if RSET_DEBUG
             logf (LOG_DEBUG, "r_read_or returning C m=%d/%d c=%d",
                     p->more_l, p->more_r, cmp);
-            (*info->log_item)(LOG_DEBUG, buf, "");
+            (*kctrl->log_item)(LOG_DEBUG, buf, "");
 #endif
             p->hits++;
             return 1;
@@ -472,48 +401,48 @@ static int r_read_or (RSFD rfd, void *buf)
 
 static int r_read_not (RSFD rfd, void *buf)
 {
-    struct rset_bool_info *info = (struct rset_bool_info*)(rfd->rset->priv);
     struct rset_bool_rfd *p=(struct rset_bool_rfd *)rfd->priv;
+    const struct key_control *kctrl=rfd->rset->keycontrol;
 
     while (p->more_l || p->more_r)
     {
         int cmp;
 
         if (p->more_l && p->more_r)
-            cmp = (*info->cmp)(p->buf_l, p->buf_r);
+            cmp = (*kctrl->cmp)(p->buf_l, p->buf_r);
         else if (p->more_r)
-            cmp = 2;
+            cmp = rfd->rset->scope;
         else
-            cmp = -2;
-        if (cmp < -1)
-        {
-            memcpy (buf, p->buf_l, info->key_size);
+            cmp = -rfd->rset->scope;
+
+        if (cmp <= -rfd->rset->scope)
+        { /* cmp == -2 */
+            memcpy (buf, p->buf_l, kctrl->key_size);
             p->more_l = rset_read (p->rfd_l, p->buf_l);
             p->hits++;
             return 1;
         }
-        else if (cmp > 1)
-        {
-                p->more_r = rset_forward( p->rfd_r, 
-                    p->buf_r, (info->cmp), p->buf_l);
-        }
+        else if (cmp >= rfd->rset->scope)   /* cmp >1 */
+            p->more_r = rset_forward( p->rfd_r, p->buf_r, p->buf_l);
         else
-        {
-            memcpy (buf, p->buf_l, info->key_size);
+        { /* cmp== -1, 0, or 1 */
+            memcpy (buf, p->buf_l, kctrl->key_size);
             do
             { 
                 p->more_l = rset_read (p->rfd_l, p->buf_l);
                 if (!p->more_l)
                     break;
-                cmp = (*info->cmp)(p->buf_l, buf);
-            } while (cmp >= -1 && cmp <= 1);
+                cmp = (*kctrl->cmp)(p->buf_l, buf);
+            } while (abs(cmp)<rfd->rset->scope);
+                /*  (cmp >= -1 && cmp <= 1) */
             do
             {
                 p->more_r = rset_read (p->rfd_r, p->buf_r);
                 if (!p->more_r)
                     break;
-                cmp = (*info->cmp)(p->buf_r, buf);
-            } while (cmp >= -1 && cmp <= 1);
+                cmp = (*kctrl->cmp)(p->buf_r, buf);
+            } while (abs(cmp)<rfd->rset->scope);
+               /* (cmp >= -1 && cmp <= 1) */
         }
     }
     return 0;