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add padding check in usable size

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This commit is contained in:
daan 2020-04-06 13:42:39 -07:00
parent a38abae0a1
commit 083392fa15
2 changed files with 9 additions and 8 deletions
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3
src/alloc.c
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@ -213,7 +213,8 @@ static bool mi_page_decode_padding(const mi_page_t* page, const mi_block_t* bloc
static size_t mi_page_usable_size_of(const mi_page_t* page, const mi_block_t* block) {
size_t bsize;
size_t delta;
bool ok = mi_page_decode_padding(page, block, &delta, &bsize);
bool ok = mi_page_decode_padding(page, block, &delta, &bsize);
if (!ok) { mi_check_padding(page, block); }
mi_assert_internal(ok); mi_assert_internal(delta <= bsize);
return (ok ? bsize - delta : 0);
}