conntrack_init(void)
{
    struct conntrack *ct = xzalloc(sizeof *ct);

    ovs_rwlock_init(&ct->resources_lock);
    ovs_rwlock_wrlock(&ct->resources_lock);
    hmap_init(&ct->alg_expectations);
    hindex_init(&ct->alg_expectation_refs);
    ovs_rwlock_unlock(&ct->resources_lock);

    ovs_mutex_init_adaptive(&ct->ct_lock);
    ovs_mutex_lock(&ct->ct_lock);
    cmap_init(&ct->conns);
    for (unsigned i = 0; i < ARRAY_SIZE(ct->exp_lists); i++) {
        ovs_list_init(&ct->exp_lists[i]);
    }
    hmap_init(&ct->zone_limits);
    ct->zone_limit_seq = 0;
    timeout_policy_init(ct);
    ovs_mutex_unlock(&ct->ct_lock);

    ct->hash_basis = random_uint32();
    atomic_count_init(&ct->n_conn, 0);
    atomic_init(&ct->n_conn_limit, DEFAULT_N_CONN_LIMIT);
    atomic_init(&ct->tcp_seq_chk, true);
    latch_init(&ct->clean_thread_exit);
    ct->clean_thread = ovs_thread_create("ct_clean", clean_thread_main, ct);
    ct->ipf = ipf_init();

    return ct;
}
conntrack_init(void)
{
    struct conntrack *ct = xzalloc(sizeof *ct);

    ovs_rwlock_init(&ct->resources_lock);
    ovs_rwlock_wrlock(&ct->resources_lock);
    hmap_init(&ct->alg_expectations);
    hindex_init(&ct->alg_expectation_refs);
    ovs_rwlock_unlock(&ct->resources_lock);

    ovs_mutex_init_adaptive(&ct->ct_lock);
    ovs_mutex_lock(&ct->ct_lock);
    cmap_init(&ct->conns);
    for (unsigned i = 0; i < ARRAY_SIZE(ct->exp_lists); i++) {
        ovs_list_init(&ct->exp_lists[i]);
    }
    hmap_init(&ct->zone_limits);
    ct->zone_limit_seq = 0;
    timeout_policy_init(ct);
    ovs_mutex_unlock(&ct->ct_lock);

    ct->hash_basis = random_uint32();
    atomic_count_init(&ct->n_conn, 0);
    atomic_init(&ct->n_conn_limit, DEFAULT_N_CONN_LIMIT);
    atomic_init(&ct->tcp_seq_chk, true);
    latch_init(&ct->clean_thread_exit);
    ct->clean_thread = ovs_thread_create("ct_clean", clean_thread_main, ct);
    ct->ipf = ipf_init();

    return ct;
}