Changeset: 29f41d31f964 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/29f41d31f964
Modified Files:
gdk/gdk_hash.c
Branch: Jul2021
Log Message:
No need for full-featured iterator inside hash changing functions.
These functions are only called when the caller is modifying the BAT,
so it has full control over the heaps.
diffs (86 lines):
diff --git a/gdk/gdk_hash.c b/gdk/gdk_hash.c
--- a/gdk/gdk_hash.c
+++ b/gdk/gdk_hash.c
@@ -1127,7 +1127,7 @@ HASHappend_locked(BAT *b, BUN i, const v
h->heaplink.free += h->width;
BUN hb = HASHget(h, c);
BUN hb2;
- BATiter bi = bat_iterator(b);
+ BATiter bi = bat_iterator_nolock(b);
int (*atomcmp)(const void *, const void *) = ATOMcompare(h->type);
for (hb2 = hb;
hb2 != BUN_NONE;
@@ -1135,7 +1135,6 @@ HASHappend_locked(BAT *b, BUN i, const v
if (atomcmp(v, BUNtail(bi, hb2)) == 0)
break;
}
- bat_iterator_end(&bi);
h->nheads += hb == BUN_NONE;
h->nunique += hb2 == BUN_NONE;
HASHputlink(h, i, hb);
@@ -1173,7 +1172,7 @@ HASHinsert_locked(BAT *b, BUN p, const v
}
BUN c = HASHprobe(h, v);
BUN hb = HASHget(h, c);
- BATiter bi = bat_iterator(b);
+ BATiter bi = bat_iterator_nolock(b);
int (*atomcmp)(const void *, const void *) = ATOMcompare(h->type);
if (hb == BUN_NONE || hb < p) {
/* bucket is empty, or bucket is used by lower numbered
@@ -1190,7 +1189,6 @@ HASHinsert_locked(BAT *b, BUN p, const v
/* found another row with the
* same value, so don't
* increment nunique */
- bat_iterator_end(&bi);
return;
}
hb = HASHgetlink(h, hb);
@@ -1198,7 +1196,6 @@ HASHinsert_locked(BAT *b, BUN p, const v
}
/* this is a new value */
h->nunique++;
- bat_iterator_end(&bi);
return;
}
bool seen = false;
@@ -1216,7 +1213,6 @@ HASHinsert_locked(BAT *b, BUN p, const v
}
if (!seen)
h->nunique++;
- bat_iterator_end(&bi);
return;
}
hb = hb2;
@@ -1252,7 +1248,7 @@ HASHdelete_locked(BAT *b, BUN p, const v
}
BUN c = HASHprobe(h, v);
BUN hb = HASHget(h, c);
- BATiter bi = bat_iterator(b);
+ BATiter bi = bat_iterator_nolock(b);
int (*atomcmp)(const void *, const void *) = ATOMcompare(h->type);
if (hb == p) {
BUN hb2 = HASHgetlink(h, p);
@@ -1268,7 +1264,6 @@ HASHdelete_locked(BAT *b, BUN p, const v
/* found another row with the
* same value, so don't
* decrement nunique below */
- bat_iterator_end(&bi);
return;
}
hb2 = HASHgetlink(h, hb2);
@@ -1277,7 +1272,6 @@ HASHdelete_locked(BAT *b, BUN p, const v
/* no rows found with the same value, so number of
* unique values is one lower */
h->nunique--;
- bat_iterator_end(&bi);
return;
}
bool seen = false;
@@ -1301,7 +1295,6 @@ HASHdelete_locked(BAT *b, BUN p, const v
HASHputlink(h, p, BUN_NONE);
if (!seen)
h->nunique--;
- bat_iterator_end(&bi);
}
void
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