Changeset: e85c1c371bcb for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/e85c1c371bcb
Modified Files:
gdk/gdk_utils.c
Branch: Dec2025
Log Message:
When calling ma_realloc on the last allocated buffer, just change it.
If space allows, of course.
Also, when reallocating to a smaller size, just return the old pointer.
diffs (28 lines):
diff --git a/gdk/gdk_utils.c b/gdk/gdk_utils.c
--- a/gdk/gdk_utils.c
+++ b/gdk/gdk_utils.c
@@ -2182,6 +2182,24 @@ ma_reset(allocator *sa)
void *
ma_realloc(allocator *sa, void *p, size_t sz, size_t oldsz)
{
+ size_t r_oldsz = round16(oldsz);
+ size_t r_sz = round16(sz);
+ if (r_oldsz <= sa->used &&
+ (char *) sa->blks[sa->nr - 1] + sa->used - r_oldsz == (char *) p) {
+ /* trying to realloc the last allocated buffer, we may
+ * be able to readjust it */
+ if (sz <= oldsz) {
+ /* size reduction */
+ sa->used = sa->used - r_oldsz + r_sz;
+ return p;
+ }
+ if (sa->used - r_oldsz + r_sz <= MA_BLOCK_SIZE) {
+ sa->used = sa->used - r_oldsz + r_sz;
+ return p;
+ }
+ } else if (r_sz <= r_oldsz)
+ return p;
+
void *r = ma_alloc(sa, sz);
if (r)
_______________________________________________
checkin-list mailing list -- [email protected]
To unsubscribe send an email to [email protected]
