Method add

src/core/test/mem_alloc.cpp:106–127

            : m_root_allocator(std::move(root_alloc)) {}

    void add(void* addr_, size_t size) {
        ASSERT_NE(nullptr, addr_);
        mgb_assert((char*)addr_ + size <= m_root_allocator->get_chunk_end(addr_));
        auto addr = reinterpret_cast<size_t>(addr_);
        MGB_LOCK_GUARD(m_mtx);
        auto rst = m_addr2size.insert({addr, size});
        mgb_assert(rst.second, "duplicated address: %p", addr_);
        auto iter = rst.first;
        if (mgb_likely(iter != m_addr2size.begin())) {
            auto iprev = iter;
            --iprev;
            mgb_assert(iprev->first + iprev->second <= addr);
        }
        auto inext = iter;
        ++inext;
        if (mgb_likely(inext != m_addr2size.end())) {
            mgb_assert(addr + size <= inext->first);
        }

        m_cur_usage += size;
        m_peak_usage = std::max(m_peak_usage, m_cur_usage);
    }

    void remove(void* addr) {
        MGB_LOCK_GUARD(m_mtx);