/* Returns the node in BT preceding P in in-order.
If P is null, returns the maximum node in BT.
Returns a null pointer if P is the minimum node in BT or if P
is null and BT is empty. */
static struct Node *bt_prev (const TreeMap *bt, const struct Node *p)
{
if (p == NULL)
return bt_last (bt);
else if (p->down[0] == NULL)
{
struct Node *q;
for (q = p->up; ; p = q, q = q->up)
if (q == NULL || p == q->down[1])
return q;
}
else
{
p = p->down[0];
while (p->down[1] != NULL)
p = p->down[1];
return (struct Node *)p;
}
}
/* Returns the node in BT preceding P in in-order.
If P is null, returns the maximum node in BT.
Returns a null pointer if P is the minimum node in BT or if P
is null and BT is empty. */
struct bt_node *
bt_prev (const struct bt *bt, const struct bt_node *p)
{
if (p == NULL)
return bt_last (bt);
else if (p->down[0] == NULL)
{
struct bt_node *q;
for (q = p->up; ; p = q, q = q->up)
if (q == NULL || p == q->down[1])
return q;
}
else
{
p = p->down[0];
while (p->down[1] != NULL)
p = p->down[1];
return CONST_CAST (struct bt_node *, p);
}
}
int
cdx_calcfiltlist(ClipMachine * ClipMachineMemory, RDD_DATA * rd, RDD_ORDER * ro, RDD_FILTER * fp, const char *__PROC__)
{
int i, er;
BTREE *bt;
void *key = malloc(sizeof(unsigned int) + ro->bufsize);
ClipVar vv, *vp;
if (fp->list)
{
bt = bt_create(0, fp->listlen, sizeof(unsigned int) + ro->bufsize, _cdx_compare);
for (i = 0; i < fp->listlen; i++)
{
if ((er = rd->vtbl->rawgo(ClipMachineMemory, rd, fp->list[i], 0, __PROC__)))
return er;
if (ro->simpexpr)
{
if ((er = rd->vtbl->getvalue(ClipMachineMemory, rd, ro->simpfno, &vv, __PROC__)))
return er;
vp = &vv;
}
else
{
if ((er = rdd_calc(ClipMachineMemory, rd->area, &ro->block, &vv, 0)))
return er;
vp = _clip_vptr(&vv);
}
memcpy(key, &rd->recno, sizeof(unsigned int));
if ((er = cdx_formatkey(ClipMachineMemory, ro, vp, key + sizeof(unsigned int), __PROC__)))
return er;
_clip_destroy(ClipMachineMemory, &vv);
bt_add(bt, ro, key);
}
free(fp->list);
}
else
{
#if 1
unsigned int bytes = ((fp->size + 1) >> 5) + 1;
int i, b, bb, t, tt;
fp->listlen = 0;
for (i = 0; i < bytes; i++)
{
if (fp->rmap[i])
{
for (b = (i << 2), bb = 0; bb < 4; b++, bb++)
{
if (((char *) fp->rmap)[b])
{
for (t = (b << 3) + 1, tt = 0; tt < 8; t++, tt++)
{
if (_rm_getbit(fp->rmap, fp->size, t))
fp->listlen++;
}
}
}
}
}
if (fp->listlen > 100)
{
free(key);
return 0;
}
#else
fp->listlen = 0;
for (i = 1; i <= fp->size; i++)
if (_rm_getbit(fp->rmap, fp->size, i))
fp->listlen++;
#endif
bt = bt_create(0, fp->listlen, sizeof(unsigned int) + ro->bufsize, _cdx_compare);
#if 1
for (i = 0; i < bytes; i++)
{
if (fp->rmap[i])
{
for (b = (i << 2), bb = 0; bb < 4; b++, bb++)
{
if (((char *) fp->rmap)[b])
{
for (t = (b << 3) + 1, tt = 0; tt < 8; t++, tt++)
{
if (_rm_getbit(fp->rmap, fp->size, t))
{
if ((er = rd->vtbl->rawgo(ClipMachineMemory, rd, t, 0, __PROC__)))
return er;
if (ro->simpexpr)
{
if ((er = rd->vtbl->getvalue(ClipMachineMemory, rd, ro->simpfno, &vv, __PROC__)))
return er;
vp = &vv;
}
else
{
if ((er = rdd_calc(ClipMachineMemory, rd->area, &ro->block, &vv, 0)))
return er;
vp = _clip_vptr(&vv);
}
memcpy(key, &rd->recno, sizeof(unsigned int));
if ((er = cdx_formatkey(ClipMachineMemory, ro, vp, key + sizeof(unsigned int), __PROC__)))
return er;
_clip_destroy(ClipMachineMemory, &vv);
bt_add(bt, ro, key);
}
}
}
}
}
}
#else
for (i = 1; i <= fp->size; i++)
{
if (_rm_getbit(fp->rmap, fp->size, i))
{
if ((er = rd->vtbl->rawgo(ClipMachineMemory, rd, i, 0, __PROC__)))
return er;
if (ro->simpexpr)
{
if ((er = rd->vtbl->getvalue(ClipMachineMemory, rd, ro->simpfno, &vv, __PROC__)))
return er;
vp = &vv;
}
else
{
if ((er = rdd_calc(ClipMachineMemory, rd->area, &ro->block, &vv, 0)))
return er;
vp = _clip_vptr(&vv);
}
memcpy(key, &rd->recno, sizeof(unsigned int));
if ((er = cdx_formatkey(ClipMachineMemory, ro, vp, key + sizeof(unsigned int), __PROC__)))
return er;
_clip_destroy(ClipMachineMemory, &vv);
bt_add(bt, ro, key);
}
}
#endif
}
fp->list = malloc(sizeof(unsigned int) * (fp->listlen + 1));
if (!ro->descend)
{
bt_first(bt);
if (bt_key(bt))
{
i = 0;
fp->list[i] = *(unsigned int *) bt_key(bt);
while (!bt_next(bt))
{
i++;
fp->list[i] = *(unsigned int *) bt_key(bt);
}
}
}
else
{
bt_last(bt);
if (bt_key(bt))
{
i = 0;
fp->list[i] = *(unsigned int *) bt_key(bt);
while (!bt_prev(bt))
{
i++;
fp->list[i] = *(unsigned int *) bt_key(bt);
}
}
}
bt_destroy(bt);
free(key);
return 0;
}
