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chunk_list_find function perfomance incremented #1

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15 changes: 11 additions & 4 deletions heap.c
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Original file line number Diff line number Diff line change
Expand Up @@ -67,12 +67,19 @@ void chunk_list_dump(const Chunk_List *list, const char *name)
}
}

// Uses binary search to find chunks
int chunk_list_find(const Chunk_List *list, uintptr_t *ptr)
{
for (size_t i = 0; i < list->count; ++i) {
if (list->chunks[i].start == ptr) {
return (int) i;
}
int l = 0, r = list->count; // left and right
int mid = l + (r - l) / 2;
while(mid >= l && mid <= r){
if(list->chunks[mid].start > ptr)
r = mid - 1;
else if(list->chunks[mid].start < ptr)
l = mid + 1;
else
return (int) mid;
mid = l + (r - l) / 2;
}

return -1;
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