only_chain_length_at_least - Memory profiling for fun and profit

AllocationList::only_chain_length_at_least

fn only_chain_length_at_least(
    self: AllocationList,
    threshold: Integer
) -> AllocationList

Returns a new AllocationList with only the allocations whose whole allocation chain was at least threshold allocations long.

For example, for the following allocation pattern:

void * a0 = malloc(size);

void * b0 = malloc(size);
void * b1 = realloc(b0, size + 1);

this code:

allocations().only_chain_length_at_least(2)

will only match b0 and b1, since their whole allocation chain has at least two allocations.