/*
* The nextChunk version advances the reader,
* which also means that the view descriptor is already available.
* The granule size may differ in each call.
*/
str
ITRnextChunk(lng *res, int *vid, int *bid, lng *granule)
{
BAT *b, *view;
BUN i;
if ((b = BATdescriptor(*bid)) == NULL) {
throw(MAL, "iterator.nextChunk", INTERNAL_BAT_ACCESS);
}
if ((view = BATdescriptor(*vid)) == NULL) {
BBPunfix(b->batCacheid);
throw(MAL, "iterator.nextChunk", INTERNAL_BAT_ACCESS);
}
i = (BUN) (*res + BATcount(view));
if (i >= BUNlast(b)) {
*res = lng_nil;
*vid = 0;
BBPunfix(view->batCacheid);
BBPunfix(b->batCacheid);
return MAL_SUCCEED;
}
/* printf("set bat chunk bound to " BUNFMT " - " BUNFMT " \n",
i, i+(BUN) *granule-1); */
VIEWbounds(b, view, i, i + (BUN) * granule);
BATseqbase(view, b->hseqbase == oid_nil ? oid_nil : b->hseqbase + i - BUNfirst(b));
BBPkeepref(*vid = view->batCacheid);
BBPunfix(b->batCacheid);
*res = i;
return MAL_SUCCEED;
}
str
ITRbunNext(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
{
BATiter bi;
BAT *b;
oid *head;
bat *bid;
ValPtr tail;
(void) cntxt;
(void) mb;
head = (oid *) getArgReference(stk, pci, 0);
tail = getArgReference(stk,pci,1);
bid = (bat *) getArgReference(stk, pci, 2);
if ((b = BATdescriptor(*bid)) == NULL) {
throw(MAL, "iterator.nextChunk", INTERNAL_BAT_ACCESS);
}
*head = (BUN)*head + 1;
if (*head >= BUNlast(b)) {
*head = oid_nil;
BBPunfix(b->batCacheid);
return MAL_SUCCEED;
}
bi = bat_iterator(b);
VALinit(tail, b->ttype, BUNtail(bi, *(BUN*) head));
BBPunfix(b->batCacheid);
return MAL_SUCCEED;
}
BUN
append_inserted(BAT *b, BAT *i )
{
BUN nr = 0, r;
BATiter ii = bat_iterator(i);
for (r = i->batInserted; r < BUNlast(i); r++) {
BUNappend(b, BUNtail(ii,r), TRUE);
nr++;
}
return nr;
}
BUN
copy_inserted(BAT *b, BAT *i )
{
BUN nr = 0;
BUN r;
BATiter ii = bat_iterator(i);
for (r = i->batInserted; r < BUNlast(i); r++) {
BUNins(b, BUNhead(ii,r), BUNtail(ii,r), TRUE);
nr++;
}
return nr;
}
/*
* The prime routine for the BAT layer is to create a new hash index.
* Its argument is the element type and the maximum number of BUNs be
* stored under the hash function.
*/
BAT *
BAThash(BAT *b, BUN masksize)
{
BAT *o = NULL;
lng t0,t1;
(void) t0;
(void) t1;
if (VIEWhparent(b)) {
bat p = VIEWhparent(b);
o = b;
b = BATdescriptor(p);
if (!ALIGNsynced(o, b) || BUNfirst(o) != BUNfirst(b)) {
BBPunfix(b->batCacheid);
b = o;
o = NULL;
}
}
MT_lock_set(&GDKhashLock(ABS(b->batCacheid)), "BAThash");
if (b->H->hash == NULL) {
unsigned int tpe = ATOMstorage(b->htype);
BUN cnt = BATcount(b);
BUN mask;
BUN p = BUNfirst(b), q = BUNlast(b), r;
Hash *h = NULL;
Heap *hp = NULL;
str nme = BBP_physical(b->batCacheid);
BATiter bi = bat_iterator(b);
ALGODEBUG fprintf(stderr, "#BAThash: create hash(" BUNFMT ");\n", BATcount(b));
/* cnt = 0, hopefully there is a proper capacity from
* which we can derive enough information */
if (!cnt)
cnt = BATcapacity(b);
if (b->htype == TYPE_void) {
if (b->hseqbase == oid_nil) {
MT_lock_unset(&GDKhashLock(ABS(b->batCacheid)), "BAThash");
ALGODEBUG fprintf(stderr, "#BAThash: cannot create hash-table on void-NIL column.\n");
return NULL;
}
ALGODEBUG fprintf(stderr, "#BAThash: creating hash-table on void column..\n");
tpe = TYPE_void;
}
/* determine hash mask size p = first; then no dynamic
* scheme */
if (masksize > 0) {
mask = HASHmask(masksize);
} else if (ATOMsize(ATOMstorage(tpe)) == 1) {
mask = (1 << 8);
} else if (ATOMsize(ATOMstorage(tpe)) == 2) {
mask = (1 << 12);
} else if (b->hkey) {
mask = HASHmask(cnt);
} else {
/* dynamic hash: we start with
* HASHmask(cnt/64); if there are too many
* collisions we try HASHmask(cnt/16), then
* HASHmask(cnt/4), and finally
* HASHmask(cnt). */
mask = HASHmask(cnt >> 6);
p += (cnt >> 2); /* try out on first 25% of b */
if (p > q)
p = q;
}
if (mask < 1024)
mask = 1024;
t0 = GDKusec();
do {
BUN nslots = mask >> 3; /* 1/8 full is too full */
r = BUNfirst(b);
if (hp) {
HEAPfree(hp);
GDKfree(hp);
}
if (h) {
ALGODEBUG fprintf(stderr, "#BAThash: retry hash construction\n");
GDKfree(h);
}
/* create the hash structures */
hp = (Heap *) GDKzalloc(sizeof(Heap));
if (hp &&
(hp->filename = GDKmalloc(strlen(nme) + 12)) != NULL)
sprintf(hp->filename, "%s.%chash", nme, b->batCacheid > 0 ? 'h' : 't');
if (hp == NULL ||
hp->filename == NULL ||
(h = HASHnew(hp, ATOMtype(b->htype), BATcapacity(b), mask)) == NULL) {
MT_lock_unset(&GDKhashLock(ABS(b->batCacheid)), "BAThash");
if (hp != NULL) {
GDKfree(hp->filename);
GDKfree(hp);
}
return NULL;
}
switch (tpe) {
case TYPE_bte:
starthash(bte);
break;
case TYPE_sht:
starthash(sht);
break;
case TYPE_int:
case TYPE_flt:
starthash(int);
break;
case TYPE_dbl:
case TYPE_lng:
starthash(lng);
break;
default:
for (; r < p; r++) {
ptr v = BUNhead(bi, r);
BUN c = (BUN) heap_hash_any(b->H->vheap, h, v);
if ( HASHget(h,c) == HASHnil(h) &&
nslots-- == 0)
break; /* mask too full */
HASHputlink(h,r, HASHget(h,c));
HASHput(h,c, r);
}
break;
}
} while (r < p && mask < cnt && (mask <<= 2));
/* finish the hashtable with the current mask */
p = r;
switch (tpe) {
case TYPE_bte:
finishhash(bte);
break;
case TYPE_sht:
finishhash(sht);
break;
case TYPE_int:
case TYPE_flt:
finishhash(int);
break;
case TYPE_dbl:
case TYPE_lng:
finishhash(lng);
break;
default:
for (; p < q; p++) {
ptr v = BUNhead(bi, p);
BUN c = (BUN) heap_hash_any(b->H->vheap, h, v);
HASHputlink(h,p, HASHget(h,c));
HASHput(h,c,p);
}
break;
}
b->H->hash = h;
t1 = GDKusec();
ALGODEBUG
fprintf(stderr, "#BAThash: hash construction "LLFMT" usec\n", t1-t0);
ALGODEBUG HASHcollisions(b,b->H->hash);
}
gdk_return
BATmaterializeh(BAT *b)
{
int ht;
BUN cnt;
Heap head;
BUN p, q;
oid h, *x;
bte tshift;
BATcheck(b, "BATmaterialize", GDK_FAIL);
assert(!isVIEW(b));
ht = b->htype;
cnt = BATcapacity(b);
head = b->H->heap;
p = BUNfirst(b);
q = BUNlast(b);
assert(cnt >= q - p);
ALGODEBUG fprintf(stderr, "#BATmaterialize(%d);\n", (int) b->batCacheid);
if (!BAThdense(b) || ht != TYPE_void) {
/* no voids */
return GDK_SUCCEED;
}
ht = TYPE_oid;
/* cleanup possible ACC's */
HASHdestroy(b);
IMPSdestroy(b);
b->H->heap.filename = NULL;
if (HEAPalloc(&b->H->heap, cnt, sizeof(oid)) != GDK_SUCCEED) {
b->H->heap = head;
return GDK_FAIL;
}
/* point of no return */
b->htype = ht;
tshift = b->T->shift;
BATsetdims(b);
if (b->ttype) {
b->T->shift = tshift; /* restore in case it got changed */
b->T->width = 1 << tshift;
}
b->batDirty = TRUE;
b->batDirtydesc = TRUE;
b->H->heap.dirty = TRUE;
/* set the correct dense info */
b->hdense = TRUE;
/* So now generate [h..h+cnt-1] */
h = b->hseqbase;
x = (oid *) b->H->heap.base;
for (; p < q; p++)
*x++ = h++;
cnt = h - b->hseqbase;
BATsetcount(b, cnt);
/* cleanup the old heaps */
HEAPfree(&head, 0);
return GDK_SUCCEED;
}
str
BATXMLforest(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
{
bat *ret = getArgReference_bat(stk, pci, 0);
BAT *bn;
BATiter *bi;
BUN *p, *q;
str buf;
int i;
size_t offset, len, size = BUFSIZ;
const char *err = OPERATION_FAILED;
(void) mb;
(void) cntxt;
buf = GDKmalloc(size);
bi = GDKmalloc(sizeof(BATiter) * pci->argc);
p = GDKmalloc(sizeof(BUN) * pci->argc);
q = GDKmalloc(sizeof(BUN) * pci->argc);
if (buf == NULL || bi == NULL || p == NULL || q == NULL) {
if (buf)
GDKfree(buf);
if (bi)
GDKfree(bi);
if (p)
GDKfree(p);
if (q)
GDKfree(q);
throw(MAL, "xml.forest", MAL_MALLOC_FAIL);
}
/* collect the admin for the xml elements */
for (i = pci->retc; i < pci->argc; i++) {
if ((bi[i].b = BATdescriptor(*getArgReference_bat(stk, pci, i))) == NULL)
break;
p[i] = BUNfirst(bi[i].b);
q[i] = BUNlast(bi[i].b);
}
/* check for errors */
if (i != pci->argc) {
for (i--; i >= pci->retc; i--)
if (bi[i].b)
BBPunfix(bi[i].b->batCacheid);
GDKfree(bi);
GDKfree(p);
GDKfree(q);
GDKfree(buf);
throw(MAL, "xml.forest", INTERNAL_BAT_ACCESS);
}
prepareResult(bn, bi[pci->retc].b, TYPE_xml, "forest",
for (i = pci->retc; i < pci->argc; i++) BBPunfix(bi[i].b->batCacheid);
GDKfree(bi); GDKfree(p); GDKfree(q); GDKfree(buf));
while (p[pci->retc] < q[pci->retc]) {
const char *t;
/* fetch the elements */
offset = 0;
strcpy(buf, str_nil);
for (i = pci->retc; i < pci->argc; i++) {
int n;
t = (const char *) BUNtail(bi[i], p[i]);
if (strNil(t))
continue;
if ((len = strlen(t)) >= size - offset) {
size += len + 128;
buf = GDKrealloc(buf, size);
if (buf == NULL) {
err = MAL_MALLOC_FAIL;
goto bunins_failed;
}
}
if (offset == 0)
n = snprintf(buf, size, "%s", t);
else if (buf[0] != *t) {
err = "incompatible values in forest";
goto bunins_failed;
} else if (buf[0] == 'A')
n = snprintf(buf + offset, size - offset, " %s", t + 1);
else if (buf[0] == 'C')
n = snprintf(buf + offset, size - offset, "%s", t + 1);
else {
err = "can only combine attributes and element content";
goto bunins_failed;
}
offset += n;
}
bunfastapp(bn, buf);
if (offset == 0)
bn->T->nonil = 0;
for (i = pci->retc; i < pci->argc; i++)
if (bi[i].b)
p[i]++;
}
GDKfree(buf);
finalizeResult(ret, bn, bi[pci->retc].b);
GDKfree(bi);
GDKfree(p);
GDKfree(q);
return MAL_SUCCEED;
bunins_failed:
for (i = pci->retc; i < pci->argc; i++)
if (bi[i].b)
BBPunfix(bi[i].b->batCacheid);
BBPunfix(bn->batCacheid);
if (buf != NULL)
GDKfree(buf);
GDKfree(bi);
GDKfree(p);
GDKfree(q);
throw(MAL, "xml.forest", "%s", err);
}
str
BATXMLconcat(bat *ret, const bat *bid, const bat *rid)
{
BAT *b, *r = 0, *bn;
BUN p, q, rp = 0;
size_t len, size = BUFSIZ;
str buf = GDKmalloc(size);
BATiter bi, ri;
const char *err = OPERATION_FAILED;
if (buf == NULL)
throw(MAL, "xml.concat", MAL_MALLOC_FAIL);
b = BATdescriptor(*bid);
r = BATdescriptor(*rid);
if (b == NULL || r == NULL) {
GDKfree(buf);
if (b)
BBPunfix(b->batCacheid);
if (r)
BBPunfix(r->batCacheid);
throw(MAL, "xml.concat", INTERNAL_BAT_ACCESS);
}
p = BUNfirst(b);
q = BUNlast(b);
rp = BUNfirst(r);
prepareResult(bn, b, TYPE_xml, "concat",
GDKfree(buf); BBPunfix(r->batCacheid));
bi = bat_iterator(b);
ri = bat_iterator(r);
while (p < q) {
const char *t = (const char *) BUNtail(bi, p);
const char *v = (const char *) BUNtail(ri, rp);
len = strlen(t) + strlen(v) + 1;
if (len >= size) {
GDKfree(buf);
size = len + 128;
buf = GDKmalloc(size);
if (buf == NULL) {
err= MAL_MALLOC_FAIL;
goto bunins_failed;
}
}
if (strNil(t)) {
if (strNil(v)) {
strcpy(buf, str_nil);
bn->T->nonil = 0;
} else
strcpy(buf, v);
} else {
if (strNil(v))
strcpy(buf, t);
else if (*t != *v) {
err = "arguments not compatible";
goto bunins_failed;
} else if (*t == 'A')
snprintf(buf, size, "A%s %s", t + 1, v + 1);
else if (*t == 'C')
snprintf(buf, size, "C%s%s", t + 1, v + 1);
else {
err = "can only concatenate attributes and element content";
goto bunins_failed;
}
}
bunfastapp(bn, buf);
rp++;
p++;
}
GDKfree(buf);
finalizeResult(ret, bn, b);
return MAL_SUCCEED;
bunins_failed:
BBPunfix(r->batCacheid);
BBPunfix(b->batCacheid);
BBPunfix(bn->batCacheid);
if (buf != NULL)
GDKfree(buf);
throw(MAL, "xml.concat", "%s", err);
}
/*
* The prime routine for the BAT layer is to create a new hash index.
* Its argument is the element type and the maximum number of BUNs be
* stored under the hash function.
*/
gdk_return
BAThash(BAT *b, BUN masksize)
{
BAT *o = NULL;
lng t0 = 0, t1 = 0;
if (BATcheckhash(b)) {
if (o != NULL) {
o->T->hash = b->T->hash;
BBPunfix(b->batCacheid);
}
return GDK_SUCCEED;
}
MT_lock_set(&GDKhashLock(abs(b->batCacheid)), "BAThash");
if (b->T->hash == NULL) {
unsigned int tpe = ATOMbasetype(b->ttype);
BUN cnt = BATcount(b);
BUN mask, maxmask = 0;
BUN p = BUNfirst(b), q = BUNlast(b), r;
Hash *h = NULL;
Heap *hp;
const char *nme = BBP_physical(b->batCacheid);
const char *ext = b->batCacheid > 0 ? "thash" : "hhash";
BATiter bi = bat_iterator(b);
#ifdef PERSISTENTHASH
int fd;
#endif
ALGODEBUG fprintf(stderr, "#BAThash: create hash(" BUNFMT ");\n", BATcount(b));
if ((hp = GDKzalloc(sizeof(*hp))) == NULL ||
(hp->farmid = BBPselectfarm(b->batRole, b->ttype, hashheap)) < 0 ||
(hp->filename = GDKmalloc(strlen(nme) + 12)) == NULL) {
MT_lock_unset(&GDKhashLock(abs(b->batCacheid)), "BAThash");
GDKfree(hp);
return GDK_FAIL;
}
sprintf(hp->filename, "%s.%s", nme, ext);
/* cnt = 0, hopefully there is a proper capacity from
* which we can derive enough information */
if (!cnt)
cnt = BATcapacity(b);
if (b->ttype == TYPE_void) {
if (b->tseqbase == oid_nil) {
MT_lock_unset(&GDKhashLock(abs(b->batCacheid)), "BAThash");
ALGODEBUG fprintf(stderr, "#BAThash: cannot create hash-table on void-NIL column.\n");
GDKfree(hp->filename);
GDKfree(hp);
return GDK_FAIL;
}
ALGODEBUG fprintf(stderr, "#BAThash: creating hash-table on void column..\n");
tpe = TYPE_void;
}
/* determine hash mask size p = first; then no dynamic
* scheme */
if (masksize > 0) {
mask = HASHmask(masksize);
} else if (ATOMsize(tpe) == 1) {
mask = (1 << 8);
} else if (ATOMsize(tpe) == 2) {
mask = (1 << 16);
} else if (b->tkey) {
mask = HASHmask(cnt);
} else {
/* dynamic hash: we start with
* HASHmask(cnt)/64; if there are too many
* collisions we try HASHmask(cnt)/16, then
* HASHmask(cnt)/4, and finally
* HASHmask(cnt). */
maxmask = HASHmask(cnt);
mask = maxmask >> 6;
p += (cnt >> 2); /* try out on first 25% of b */
if (p > q)
p = q;
}
t0 = GDKusec();
do {
BUN nslots = mask >> 3; /* 1/8 full is too full */
r = BUNfirst(b);
if (h) {
char *fnme;
bte farmid;
ALGODEBUG fprintf(stderr, "#BAThash: retry hash construction\n");
fnme = GDKstrdup(hp->filename);
farmid = hp->farmid;
HEAPfree(hp, 1);
memset(hp, 0, sizeof(*hp));
hp->filename = fnme;
hp->farmid = farmid;
GDKfree(h);
h = NULL;
}
/* create the hash structures */
if ((h = HASHnew(hp, ATOMtype(b->ttype), BATcapacity(b), mask, BATcount(b))) == NULL) {
MT_lock_unset(&GDKhashLock(abs(b->batCacheid)), "BAThash");
GDKfree(hp->filename);
GDKfree(hp);
return GDK_FAIL;
}
switch (tpe) {
case TYPE_bte:
starthash(bte);
break;
case TYPE_sht:
starthash(sht);
break;
case TYPE_int:
case TYPE_flt:
#if SIZEOF_OID == SIZEOF_INT
case TYPE_oid:
#endif
#if SIZEOF_WRD == SIZEOF_INT
case TYPE_wrd:
#endif
starthash(int);
break;
case TYPE_dbl:
case TYPE_lng:
#if SIZEOF_OID == SIZEOF_LNG
case TYPE_oid:
#endif
#if SIZEOF_WRD == SIZEOF_LNG
case TYPE_wrd:
#endif
starthash(lng);
break;
#ifdef HAVE_HGE
case TYPE_hge:
starthash(hge);
break;
#endif
default:
for (; r < p; r++) {
ptr v = BUNtail(bi, r);
BUN c = (BUN) heap_hash_any(b->T->vheap, h, v);
if (HASHget(h, c) == HASHnil(h) &&
nslots-- == 0)
break; /* mask too full */
HASHputlink(h, r, HASHget(h, c));
HASHput(h, c, r);
}
break;
}
} while (r < p && mask < maxmask && (mask <<= 2));
/* finish the hashtable with the current mask */
p = r;
switch (tpe) {
case TYPE_bte:
finishhash(bte);
break;
case TYPE_sht:
finishhash(sht);
break;
case TYPE_int:
case TYPE_flt:
#if SIZEOF_OID == SIZEOF_INT
case TYPE_oid:
#endif
#if SIZEOF_WRD == SIZEOF_INT
case TYPE_wrd:
#endif
finishhash(int);
break;
case TYPE_dbl:
case TYPE_lng:
#if SIZEOF_OID == SIZEOF_LNG
case TYPE_oid:
#endif
#if SIZEOF_WRD == SIZEOF_LNG
case TYPE_wrd:
#endif
finishhash(lng);
break;
#ifdef HAVE_HGE
case TYPE_hge:
finishhash(hge);
break;
#endif
default:
for (; p < q; p++) {
ptr v = BUNtail(bi, p);
BUN c = (BUN) heap_hash_any(b->T->vheap, h, v);
HASHputlink(h, p, HASHget(h, c));
HASHput(h, c, p);
}
break;
}
#ifdef PERSISTENTHASH
if ((BBP_status(b->batCacheid) & BBPEXISTING) &&
b->batInserted == b->batCount &&
HEAPsave(hp, nme, ext) == GDK_SUCCEED &&
(fd = GDKfdlocate(hp->farmid, nme, "rb+", ext)) >= 0) {
ALGODEBUG fprintf(stderr, "#BAThash: persisting hash %d\n", b->batCacheid);
((size_t *) hp->base)[0] |= 1 << 24;
if (write(fd, hp->base, SIZEOF_SIZE_T) < 0)
perror("write hash");
if (!(GDKdebug & FORCEMITOMASK)) {
#if defined(NATIVE_WIN32)
_commit(fd);
#elif defined(HAVE_FDATASYNC)
fdatasync(fd);
#elif defined(HAVE_FSYNC)
fsync(fd);
#endif
}
close(fd);
} else
ALGODEBUG fprintf(stderr, "#BAThash: NOT persisting hash %d\n", b->batCacheid);
#endif
b->T->hash = h;
t1 = GDKusec();
ALGODEBUG fprintf(stderr, "#BAThash: hash construction " LLFMT " usec\n", t1 - t0);
ALGODEBUG HASHcollisions(b, b->T->hash);
}
static BUN
SORTfndwhich(BAT *b, const void *v, enum find_which which)
{
BUN lo, hi, mid;
int cmp;
BUN cur;
BATiter bi;
BUN diff, end;
int tp;
if (b == NULL || (!b->tsorted && !b->trevsorted))
return BUN_NONE;
lo = BUNfirst(b);
hi = BUNlast(b);
if (BATtdense(b)) {
/* no need for binary search on dense column */
if (*(const oid *) v < b->tseqbase ||
*(const oid *) v == oid_nil)
return which == FIND_ANY ? BUN_NONE : lo;
if (*(const oid *) v >= b->tseqbase + BATcount(b))
return which == FIND_ANY ? BUN_NONE : hi;
cur = (BUN) (*(const oid *) v - b->tseqbase) + lo;
return cur + (which == FIND_LAST);
}
if (b->ttype == TYPE_void) {
assert(b->tseqbase == oid_nil);
switch (which) {
case FIND_FIRST:
if (*(const oid *) v == oid_nil)
return lo;
case FIND_LAST:
return hi;
default:
if (lo < hi && *(const oid *) v == oid_nil)
return lo;
return BUN_NONE;
}
}
cmp = 1;
cur = BUN_NONE;
bi = bat_iterator(b);
/* only use storage type if comparison functions are equal */
tp = ATOMbasetype(b->ttype);
switch (which) {
case FIND_FIRST:
end = lo;
if (lo >= hi || (b->tsorted ? atom_GE(BUNtail(bi, lo), v, b->ttype) : atom_LE(BUNtail(bi, lo), v, b->ttype))) {
/* shortcut: if BAT is empty or first (and
* hence all) tail value is >= v (if sorted)
* or <= v (if revsorted), we're done */
return lo;
}
break;
case FIND_LAST:
end = hi;
if (lo >= hi || (b->tsorted ? atom_LE(BUNtail(bi, hi - 1), v, b->ttype) : atom_GE(BUNtail(bi, hi - 1), v, b->ttype))) {
/* shortcut: if BAT is empty or first (and
* hence all) tail value is <= v (if sorted)
* or >= v (if revsorted), we're done */
return hi;
}
break;
default: /* case FIND_ANY -- stupid compiler */
end = 0; /* not used in this case */
if (lo >= hi) {
/* empty BAT: value not found */
return BUN_NONE;
}
break;
}
if (b->tsorted) {
switch (tp) {
case TYPE_bte:
SORTfndloop(bte, simple_CMP, BUNtloc);
break;
case TYPE_sht:
SORTfndloop(sht, simple_CMP, BUNtloc);
break;
case TYPE_int:
SORTfndloop(int, simple_CMP, BUNtloc);
break;
case TYPE_lng:
SORTfndloop(lng, simple_CMP, BUNtloc);
break;
#ifdef HAVE_HGE
case TYPE_hge:
SORTfndloop(hge, simple_CMP, BUNtloc);
break;
#endif
case TYPE_flt:
SORTfndloop(flt, simple_CMP, BUNtloc);
break;
case TYPE_dbl:
SORTfndloop(dbl, simple_CMP, BUNtloc);
break;
default:
if (b->tvarsized)
SORTfndloop(b->ttype, atom_CMP, BUNtvar);
else
SORTfndloop(b->ttype, atom_CMP, BUNtloc);
break;
}
} else {
switch (tp) {
case TYPE_bte:
SORTfndloop(bte, -simple_CMP, BUNtloc);
break;
case TYPE_sht:
SORTfndloop(sht, -simple_CMP, BUNtloc);
break;
case TYPE_int:
SORTfndloop(int, -simple_CMP, BUNtloc);
break;
case TYPE_lng:
SORTfndloop(lng, -simple_CMP, BUNtloc);
break;
#ifdef HAVE_HGE
case TYPE_hge:
SORTfndloop(hge, -simple_CMP, BUNtloc);
break;
#endif
case TYPE_flt:
SORTfndloop(flt, -simple_CMP, BUNtloc);
break;
case TYPE_dbl:
SORTfndloop(dbl, -simple_CMP, BUNtloc);
break;
default:
if (b->tvarsized)
SORTfndloop(b->ttype, -atom_CMP, BUNtvar);
else
SORTfndloop(b->ttype, -atom_CMP, BUNtloc);
break;
}
}
switch (which) {
case FIND_FIRST:
if (cmp == 0 && b->tkey == 0) {
/* shift over multiple equals */
for (diff = cur - end; diff; diff >>= 1) {
while (cur >= end + diff &&
atom_EQ(BUNtail(bi, cur - diff), v, b->ttype))
cur -= diff;
}
}
break;
case FIND_LAST:
if (cmp == 0 && b->tkey == 0) {
/* shift over multiple equals */
for (diff = (end - cur) >> 1; diff; diff >>= 1) {
while (cur + diff < end &&
atom_EQ(BUNtail(bi, cur + diff), v, b->ttype))
cur += diff;
}
}
cur += (cmp == 0);
break;
default: /* case FIND_ANY -- stupid compiler */
if (cmp) {
/* not found */
cur = BUN_NONE;
}
break;
}
return cur;
}
str
BKCreuseBATmap(bat *ret, const bat *bid, const bat *did)
{
BAT *b, *d, *bn, *bs;
oid bidx, oidx = 0, *o, *ol;
oid *r;
gdk_return res;
if ((b = BATdescriptor(*bid)) == NULL) {
throw(MAL, "bat.shrinkMap", RUNTIME_OBJECT_MISSING);
}
if ( b->htype != TYPE_void) {
BBPunfix(b->batCacheid);
throw(MAL, "bat.shrinkMap", SEMANTIC_TYPE_MISMATCH);
}
if ((d = BATdescriptor(*did)) == NULL) {
BBPunfix(b->batCacheid);
throw(MAL, "bat.shrinkMap", RUNTIME_OBJECT_MISSING);
}
bn= BATnew(TYPE_void, TYPE_oid, BATcount(b) - BATcount(d), TRANSIENT);
if (bn == NULL) {
BBPunfix(b->batCacheid);
BBPunfix(d->batCacheid);
throw(MAL, "bat.shrinkMap", MAL_MALLOC_FAIL );
}
res = BATsubsort(&bs, NULL, NULL, d, NULL, NULL, 0, 0);
BBPunfix(d->batCacheid);
if (res != GDK_SUCCEED) {
BBPunfix(b->batCacheid);
BBPunfix(bn->batCacheid);
throw(MAL, "bat.shrinkMap", MAL_MALLOC_FAIL );
}
oidx = b->hseqbase;
bidx = oidx + BATcount(b)-1;
o = (oid*)Tloc(bs, BUNfirst(bs));
ol = (oid*)Tloc(bs, BUNlast(bs));
r = (oid*)Tloc(bn, BUNfirst(bn));
for (; oidx <= bidx; oidx++) {
if ( *o == oidx ){
while ( ol > o && ol[-1] == bidx) {
bidx--;
ol--;
}
*r++ = bidx;
o += (o < ol);
bidx--;
} else {
*r++ = oidx;
}
}
BATsetcount(bn, BATcount(b)-BATcount(bs));
BATseqbase(bn, b->hseqbase);
bn->tsorted = 0;
bn->trevsorted = 0;
bn->tdense = 0;
if (!(bn->batDirty&2)) BATsetaccess(bn, BAT_READ);
BBPunfix(b->batCacheid);
BBPunfix(bs->batCacheid);
BBPkeepref(*ret= bn->batCacheid);
return MAL_SUCCEED;
}
str
BKCreuseBAT(bat *ret, const bat *bid, const bat *did)
{
BAT *b, *d, *bn, *bs;
oid oidx = 0, bidx, *o, *ol;
gdk_return res;
if ((b = BATdescriptor(*bid)) == NULL) {
throw(MAL, "bat.reuse", RUNTIME_OBJECT_MISSING);
}
if ( b->htype != TYPE_void) {
BBPunfix(b->batCacheid);
throw(MAL, "bat.reuse", SEMANTIC_TYPE_MISMATCH);
}
if ((d = BATdescriptor(*did)) == NULL) {
BBPunfix(b->batCacheid);
throw(MAL, "bat.reuse", RUNTIME_OBJECT_MISSING);
}
bn= BATnew(b->htype, b->ttype, BATcount(b) - BATcount(d), TRANSIENT);
if (bn == NULL) {
BBPunfix(b->batCacheid);
BBPunfix(d->batCacheid);
throw(MAL, "bat.reuse", MAL_MALLOC_FAIL );
}
res = BATsubsort(&bs, NULL, NULL, d, NULL, NULL, 0, 0);
BBPunfix(d->batCacheid);
if (res != GDK_SUCCEED) {
BBPunfix(b->batCacheid);
BBPunfix(bn->batCacheid);
throw(MAL, "bat.reuse", MAL_MALLOC_FAIL );
}
oidx = b->hseqbase;
bidx = oidx + BATcount(b)-1;
o = (oid*)Tloc(bs, BUNfirst(bs));
ol= (oid*)Tloc(bs, BUNlast(bs));
switch(ATOMstorage(b->ttype) ){
case TYPE_bte: reuseloop(bte); break;
case TYPE_sht: reuseloop(sht); break;
case TYPE_int: reuseloop(int); break;
case TYPE_lng: reuseloop(lng); break;
#ifdef HAVE_HGE
case TYPE_hge: reuseloop(hge); break;
#endif
case TYPE_flt: reuseloop(flt); break;
case TYPE_dbl: reuseloop(dbl); break;
case TYPE_oid: reuseloop(oid); break;
case TYPE_str: /* to be done based on its index width */
default:
if (ATOMvarsized(bn->ttype)) {
BUN p = BUNfirst(b);
BUN q = BUNlast(b);
BATiter bi = bat_iterator(b);
for (;p<q; oidx++, p++) {
if ( *o == oidx ){
while ( ol > o && ol[-1] == bidx) {
bidx--;
q--;
ol--;
}
BUNappend(bn, BUNtail(bi, --q), FALSE);
o += (o < ol);
bidx--;
} else {
BUNappend(bn, BUNtail(bi, p), FALSE);
}
}
} else {
switch( b->T->width){
case 1:reuseloop(bte); break;
case 2:reuseloop(sht); break;
case 4:reuseloop(int); break;
case 8:reuseloop(lng); break;
#ifdef HAVE_HGE
case 16:reuseloop(hge); break;
#endif
default:
throw(MAL, "bat.shrink", "Illegal argument type");
}
}
}
BATsetcount(bn, BATcount(b) - BATcount(bs));
BATseqbase(bn, b->hseqbase);
bn->tsorted = 0;
bn->trevsorted = 0;
bn->tdense = 0;
bn->tkey = b->tkey;
if (!(bn->batDirty&2)) BATsetaccess(bn, BAT_READ);
BBPunfix(b->batCacheid);
BBPunfix(bs->batCacheid);
BBPkeepref(*ret= bn->batCacheid);
return MAL_SUCCEED;
}
