C++ PostgresStrings类代码示例

uint32_t v_count_age_owners(uint32_t ageInfoId)
{
    PostgresStrings<2> parms;
    parms.set(0, ageInfoId);
    parms.set(1, DS::Vault::e_AgeOwnersFolder);
    PGresult* result = PQexecParams(s_postgres,
                       "SELECT idx FROM vault.find_folder($1, $2);",
                       2, 0, parms.m_values, 0, 0, 0);
    uint32_t owners = 0;
    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return owners;
    }
    parms.set(0, PQgetvalue(result, 0, 0));
    PQclear(result);
    result = PQexecParams(s_postgres,
             "SELECT COUNT(*) FROM vault.\"NodeRefs\" WHERE \"ParentIdx\"=$1",
              1, 0, parms.m_values, 0, 0, 0);
    if (PQresultStatus(result) == PGRES_TUPLES_OK) {
        owners = strtoul(PQgetvalue(result, 0, 0), 0, 10);
    } else {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
    }
    PQclear(result);
    return owners;
}

DS::Vault::NodeRef v_send_node(uint32_t nodeId, uint32_t playerId, uint32_t senderId)
{
    DS::Vault::NodeRef ref;
    ref.m_child = ref.m_owner = ref.m_parent = 0;
    PostgresStrings<2> parms;
    parms.set(0, playerId);
    parms.set(1, DS::Vault::e_InboxFolder);
    PGresult* result = PQexecParams(s_postgres,
            "SELECT idx FROM vault.find_folder($1, $2);",
            2, 0, parms.m_values, 0, 0, 0);
    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return ref;
    }
    DS_DASSERT(PQntuples(result) == 1);
    uint32_t inbox = strtoul(PQgetvalue(result, 0, 0), 0, 10);
    PQclear(result);

    if (v_ref_node(inbox, nodeId, senderId)) {
        ref.m_child = nodeId;
        ref.m_owner = senderId;
        ref.m_parent = inbox;
    }
    return ref;
}

bool v_has_node(uint32_t parentId, uint32_t childId)
{
    if (parentId == 0)
        return false;
    if (parentId == childId)
        return true;

    PostgresStrings<2> parms;
    parms.set(0, parentId);
    parms.set(1, childId);

    check_postgres();
    PGresult* result = PQexecParams(s_postgres,
                                    "SELECT vault.has_node($1, $2)",
                                    2, 0, parms.m_values, 0, 0, 0);
    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return false;
    }
    DS_DASSERT(PQntuples(result) == 1);
    bool retval = (*PQgetvalue(result, 0, 0) == 't');
    PQclear(result);
    return retval != 0;
}

bool v_fetch_tree(uint32_t nodeId, std::vector<DS::Vault::NodeRef>& refs)
{
    PostgresStrings<1> parm;
    parm.set(0, nodeId);
    PGresult* result = PQexecParams(s_postgres,
            "SELECT \"ParentIdx\", \"ChildIdx\", \"OwnerIdx\", \"Seen\""
            "    FROM vault.fetch_tree($1);",
            1, 0, parm.m_values, 0, 0, 0);
    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return false;
    }

    refs.resize(PQntuples(result));
    for (size_t i=0; i<refs.size(); ++i) {
        refs[i].m_parent = strtoul(PQgetvalue(result, i, 0), 0, 10);
        refs[i].m_child = strtoul(PQgetvalue(result, i, 1), 0, 10);
        refs[i].m_owner = strtoul(PQgetvalue(result, i, 2), 0, 10);
        refs[i].m_seen = strtoul(PQgetvalue(result, i, 3), 0, 10);
    }
    PQclear(result);
    return true;
}

bool v_find_public_ages(const DS::String& ageFilename, std::vector<Auth_PubAgeRequest::NetAgeInfo>& ages)
{
    PostgresStrings<2> parms;
    parms.set(0, DS::Vault::e_NodeAgeInfo);
    parms.set(1, ageFilename);
    // ageInfoId, Uuid, InstName, UserName, Description, SeqNumber, Language
    PGresult* result = PQexecParams(s_postgres,
                       "SELECT idx, \"Uuid_1\", \"String64_3\", \"String64_4\","
                       "    \"Text_1\",\"Int32_1\", \"Int32_3\" FROM vault.\"Nodes\""
                       "    WHERE \"NodeType\"=$1 AND \"Int32_2\"=1 AND \"String64_2\"=$2"
                       "    ORDER BY \"ModifyTime\" LIMIT 50",
                       2, 0, parms.m_values, 0, 0, 0);
    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return false;
    }
    for (int i = 0; i < PQntuples(result); ++i) {
        Auth_PubAgeRequest::NetAgeInfo ai;
        ai.m_instance = DS::Uuid(PQgetvalue(result, i, 1));
        ai.m_instancename = PQgetvalue(result, i, 2);
        ai.m_username = PQgetvalue(result, i, 3);
        ai.m_description = PQgetvalue(result, i, 4);
        ai.m_sequence = strtoul(PQgetvalue(result, i, 5), 0, 10);
        ai.m_language = strtoul(PQgetvalue(result, i, 6), 0, 10);
        ai.m_curPopulation = v_count_age_population(PQgetvalue(result, i, 1));
        ai.m_population = v_count_age_owners(strtoul(PQgetvalue(result, i, 0), 0 , 10));
        ages.push_back(ai);
    }
    PQclear(result);
    return true;
}

static std::tuple<uint32_t, uint32_t>
find_a_friendly_neighborhood_for_our_new_visitor()
{
    PGresult* result = PQexec(s_postgres,
                       "SELECT idx FROM vault.\"Nodes\" WHERE \"String64_2\"="
                       "    'Neighborhood' AND \"String64_4\" = '" HOOD_USER_NAME "'"
                       "    ORDER BY \"Int32_1\"");
    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return std::make_tuple<uint32_t, uint32_t>(0, 0);
    }
    uint32_t theHoodInfo = 0;
    for (int i = 0; i < PQntuples(result); ++i) {
        uint32_t ageInfoId = strtoul(PQgetvalue(result, i, 0), 0, 10);
        uint32_t owners = v_count_age_owners(ageInfoId);
        if (owners < HOOD_POPULATION_THRESHOLD) {
            theHoodInfo = ageInfoId;
            break;
        }
    }
    PQclear(result);

    // Need new hood?
    if (theHoodInfo == 0) {
        AuthServer_AgeInfo age;
        age.m_ageId = gen_uuid();
        age.m_filename = "Neighborhood";
        age.m_instName = HOOD_INSTANCE_NAME;
        age.m_userName = HOOD_USER_NAME;
        age.m_description = HOOD_USER_NAME " " HOOD_INSTANCE_NAME;
        age.m_seqNumber = -1;   // Auto-generate
        theHoodInfo = std::get<1>(v_create_age(age, e_AgePublic));
    }

    // It's important to BCast new hood members, so we'll return the ageOwners folder
    PostgresStrings<2> parms;
    parms.set(0, theHoodInfo);
    parms.set(1, DS::Vault::e_AgeOwnersFolder);
    result = PQexecParams(s_postgres, "SELECT idx FROM vault.find_folder($1, $2);",
                          2, 0, parms.m_values, 0, 0, 0);
    if (PQresultStatus(result) == PGRES_TUPLES_OK) {
        uint32_t ownersFolder = strtoul(PQgetvalue(result, 0, 0), 0, 10);
        PQclear(result);
        return std::make_tuple(theHoodInfo, ownersFolder);
    } else {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return std::make_tuple(0, 0);
    }
}

bool dm_vault_init()
{
    PostgresStrings<1> sparm;
    sparm.set(0, DS::Vault::e_NodeSystem);
    PGresult* result = PQexecParams(s_postgres,
            "SELECT \"idx\" FROM vault.\"Nodes\""
            "    WHERE \"NodeType\"=$1",
            1, 0, sparm.m_values, 0, 0, 0);
    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return false;
    }

    int count = PQntuples(result);
    if (count == 0) {
        PQclear(result);

        fputs("[Vault] Initializing empty DirtSand vault\n", stderr);

        // Create system and global inbox nodes
        DS::Vault::Node node;
        node.set_NodeType(DS::Vault::e_NodeSystem);
        s_systemNode = v_create_node(node);
        if (s_systemNode == 0)
            return false;

        node.set_NodeType(DS::Vault::e_NodeFolder);
        node.set_Int32_1(DS::Vault::e_GlobalInboxFolder);
        uint32_t globalInbox = v_create_node(node);
        if (globalInbox == 0)
            return false;

        if (!v_ref_node(s_systemNode, globalInbox, 0))
            return false;

        std::list<AuthServer_AgeInfo> ages = configure_static_ages();
        for (auto iter = ages.begin(); iter != ages.end(); ++iter) {
            if (std::get<0>(v_create_age(*iter, e_AgePublic)) == 0)
                return false;
        }
    } else {
        DS_DASSERT(count == 1);
        s_systemNode = strtoul(PQgetvalue(result, 0, 0), 0, 10);
        PQclear(result);
    }

    return true;
}

static uint32_t find_public_age_1(const DS::String& filename)
{
    PGresult* result;
    {
        PostgresStrings<1> parm;
        parm.set(0, filename);
        result = PQexecParams(s_postgres,
                "SELECT \"AgeUuid\" FROM game.\"PublicAges\""
                "    WHERE \"AgeFilename\"=$1 AND \"SeqNumber\"=0",
                1, 0, parm.m_values, 0, 0, 0);
    }
    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return 0;
    }
    DS_DASSERT(PQntuples(result) == 1);

    DS::Uuid ageId(PQgetvalue(result, 0, 0));
    PQclear(result);

    {
        PostgresStrings<2> parms;
        parms.set(0, DS::Vault::e_NodeAgeInfo);
        parms.set(1, ageId.toString());
        result = PQexecParams(s_postgres,
                "SELECT idx FROM vault.\"Nodes\""
                "    WHERE \"NodeType\"=$1 AND \"Uuid_1\"=$2",
                2, 0, parms.m_values, 0, 0, 0);
    }
    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return 0;
    }
    if (PQntuples(result) == 0) {
        // Public age not found
        PQclear(result);
        return 0;
    }
    DS_DASSERT(PQntuples(result) == 1);

    uint32_t ageInfoNode = strtoul(PQgetvalue(result, 0, 0), 0, 10);
    PQclear(result);
    return ageInfoNode;
}

void dm_game_shutdown(GameHost_Private* host)
{
    {
        std::lock_guard<std::mutex> clientGuard(host->m_clientMutex);
        for (auto client_iter = host->m_clients.begin(); client_iter != host->m_clients.end(); ++client_iter)
            DS::CloseSock(client_iter->second->m_sock);
    }

    for (auto clone_iter = host->m_clones.begin(); clone_iter != host->m_clones.end(); ++clone_iter)
        clone_iter->second->unref();
    host->m_clones.clear();

    bool complete = false;
    for (int i=0; i<50 && !complete; ++i) {
        host->m_clientMutex.lock();
        size_t alive = host->m_clients.size();
        host->m_clientMutex.unlock();
        if (alive == 0)
            complete = true;
        std::this_thread::sleep_for(std::chrono::milliseconds(100));
    }
    if (!complete)
        fputs("[Game] Clients didn't die after 5 seconds!\n", stderr);

    s_gameHostMutex.lock();
    hostmap_t::iterator host_iter = s_gameHosts.begin();
    while (host_iter != s_gameHosts.end()) {
        if (host_iter->second == host)
            host_iter = s_gameHosts.erase(host_iter);
        else
            ++host_iter;
    }
    s_gameHostMutex.unlock();

    if (host->m_temp) {
        PostgresStrings<1> params;
        params.set(0, host->m_serverIdx);
        PQexecParams(host->m_postgres,
                "DELETE FROM game.\"Servers\" "
                "    WHERE \"idx\"=$1;",
                1, 0, params.m_values, 0, 0, 0);
    }
    PQfinish(host->m_postgres);
    delete host;
}

bool v_unref_node(uint32_t parentIdx, uint32_t childIdx)
{
    PostgresStrings<2> parms;
    parms.set(0, parentIdx);
    parms.set(1, childIdx);
    PGresult* result = PQexecParams(s_postgres,
            "DELETE FROM vault.\"NodeRefs\""
            "    WHERE \"ParentIdx\"=$1 AND \"ChildIdx\"=$2",
            2, 0, parms.m_values, 0, 0, 0);
    if (PQresultStatus(result) != PGRES_COMMAND_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres DELETE error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return false;
    }
    PQclear(result);
    return true;
}

static uint32_t find_public_age_1(const DS::String& filename)
{
    PostgresStrings<1> parm;
    parm.set(0, filename);
    PGresult* result = PQexecParams(s_postgres, "SELECT idx FROM vault.\"Nodes\""
                       "    WHERE \"Int32_2\" = 1 AND \"String64_2\"=$1",
                       1, 0, parm.m_values, 0, 0, 0);
    uint32_t ageInfoId = 0;
    if (PQresultStatus(result) == PGRES_TUPLES_OK) {
        DS_DASSERT(PQntuples(result) == 1);
        ageInfoId = strtoul(PQgetvalue(result, 0, 0), 0, 10);
    } else {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
    }
    PQclear(result);
    return ageInfoId;
}

uint32_t v_count_age_population(const char* uuid)
{
    PostgresStrings<2> parms;
    parms.set(0, DS::Vault::e_NodePlayerInfo);
    parms.set(1, uuid);
    PGresult* result = PQexecParams(s_postgres,
                       "SELECT COUNT(*) FROM vault.\"Nodes\" WHERE \"NodeType\"=$1 AND"
                       "    \"Int32_1\"=1 AND \"Uuid_1\"=$2",
                       2, 0, parms.m_values, 0, 0, 0);
    uint32_t population = 0;
    if (PQresultStatus(result) == PGRES_TUPLES_OK) {
        population = strtoul(PQgetvalue(result, 0, 0), 0, 10);
    } else {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
    }
    PQclear(result);
    return population;
}

bool v_ref_node(uint32_t parentIdx, uint32_t childIdx, uint32_t ownerIdx)
{
    PostgresStrings<3> parms;
    parms.set(0, parentIdx);
    parms.set(1, childIdx);
    parms.set(2, ownerIdx);
    PGresult* result = PQexecParams(s_postgres,
            "INSERT INTO vault.\"NodeRefs\""
            "    (\"ParentIdx\", \"ChildIdx\", \"OwnerIdx\")"
            "    VALUES ($1, $2, $3)",
            3, 0, parms.m_values, 0, 0, 0);
    if (PQresultStatus(result) != PGRES_COMMAND_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres INSERT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return false;
    }
    PQclear(result);
    return true;
}

void dm_save_sdl_state(GameHost_Private* host, const DS::String& descriptor,
                       const MOUL::Uoid& object, const SDL::State& state)
{
    check_postgres(host);

    DS::Blob sdlBlob = state.toBlob();
    PostgresStrings<4> parms;
    host->m_buffer.truncate();
    object.write(&host->m_buffer);
    parms.set(0, host->m_serverIdx);
    parms.set(1, descriptor);
    parms.set(2, DS::Base64Encode(host->m_buffer.buffer(), host->m_buffer.size()));
    parms.set(3, DS::Base64Encode(sdlBlob.buffer(), sdlBlob.size()));
    PGresult* result = PQexecParams(host->m_postgres,
                                    "SELECT idx FROM game.\"AgeStates\""
                                    "    WHERE \"ServerIdx\"=$1 AND \"Descriptor\"=$2 AND \"ObjectKey\"=$3",
                                    3, 0, parms.m_values, 0, 0, 0);
    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres SELECT error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(host->m_postgres));
        PQclear(result);
        return;
    }
    if (PQntuples(result) == 0) {
        PQclear(result);
        result = PQexecParams(host->m_postgres,
                              "INSERT INTO game.\"AgeStates\""
                              "    (\"ServerIdx\", \"Descriptor\", \"ObjectKey\", \"SdlBlob\")"
                              "    VALUES ($1, $2, $3, $4)",
                              4, 0, parms.m_values, 0, 0, 0);
        if (PQresultStatus(result) != PGRES_COMMAND_OK) {
            fprintf(stderr, "%s:%d:\n    Postgres INSERT error: %s\n",
                    __FILE__, __LINE__, PQerrorMessage(host->m_postgres));
            PQclear(result);
            return;
        }
        PQclear(result);
    } else {
        DS_DASSERT(PQntuples(result) == 1);
        parms.set(0, DS::String(PQgetvalue(result, 0, 0)));
        parms.set(1, parms.m_strings[3]);   // SDL blob
        PQclear(result);
        result = PQexecParams(host->m_postgres,
                              "UPDATE game.\"AgeStates\""
                              "    SET \"SdlBlob\"=$2 WHERE idx=$1",
                              2, 0, parms.m_values, 0, 0, 0);
        if (PQresultStatus(result) != PGRES_COMMAND_OK) {
            fprintf(stderr, "%s:%d:\n    Postgres UPDATE error: %s\n",
                    __FILE__, __LINE__, PQerrorMessage(host->m_postgres));
            PQclear(result);
            return;
        }
        PQclear(result);
    }
}

bool v_update_node(const DS::Vault::Node& node)
{
    /* This should be plenty to store everything we need without a bunch
     * of dynamic reallocations
     */
    PostgresStrings<32> parms;
    char fieldbuf[1024];

    size_t parmcount = 1;
    char* fieldp = fieldbuf;

    #define SET_FIELD(name, value) \
        { \
            parms.set(parmcount++, value); \
            fieldp += sprintf(fieldp, "\"" #name "\"=$%Zu,", parmcount); \
        }
    int now = time(0);
    SET_FIELD(ModifyTime, now);
    if (node.has_CreateAgeName())
        SET_FIELD(CreateAgeName, node.m_CreateAgeName);
    if (node.has_CreateAgeUuid())
        SET_FIELD(CreateAgeUuid, node.m_CreateAgeUuid.toString());
    if (node.has_CreatorUuid())
        SET_FIELD(CreatorUuid, node.m_CreatorUuid.toString());
    if (node.has_CreatorIdx())
        SET_FIELD(CreatorIdx, node.m_CreatorIdx);
    if (node.has_NodeType())
        SET_FIELD(NodeType, node.m_NodeType);
    if (node.has_Int32_1())
        SET_FIELD(Int32_1, node.m_Int32_1);
    if (node.has_Int32_2())
        SET_FIELD(Int32_2, node.m_Int32_2);
    if (node.has_Int32_3())
        SET_FIELD(Int32_3, node.m_Int32_3);
    if (node.has_Int32_4())
        SET_FIELD(Int32_4, node.m_Int32_4);
    if (node.has_Uint32_1())
        SET_FIELD(Uint32_1, node.m_Uint32_1);
    if (node.has_Uint32_2())
        SET_FIELD(Uint32_2, node.m_Uint32_2);
    if (node.has_Uint32_3())
        SET_FIELD(Uint32_3, node.m_Uint32_3);
    if (node.has_Uint32_4())
        SET_FIELD(Uint32_4, node.m_Uint32_4);
    if (node.has_Uuid_1())
        SET_FIELD(Uuid_1, node.m_Uuid_1.toString());
    if (node.has_Uuid_2())
        SET_FIELD(Uuid_2, node.m_Uuid_2.toString());
    if (node.has_Uuid_3())
        SET_FIELD(Uuid_3, node.m_Uuid_3.toString());
    if (node.has_Uuid_4())
        SET_FIELD(Uuid_4, node.m_Uuid_4.toString());
    if (node.has_String64_1())
        SET_FIELD(String64_1, node.m_String64_1);
    if (node.has_String64_2())
        SET_FIELD(String64_2, node.m_String64_2);
    if (node.has_String64_3())
        SET_FIELD(String64_3, node.m_String64_3);
    if (node.has_String64_4())
        SET_FIELD(String64_4, node.m_String64_4);
    if (node.has_String64_5())
        SET_FIELD(String64_5, node.m_String64_5);
    if (node.has_String64_6())
        SET_FIELD(String64_6, node.m_String64_6);
    if (node.has_IString64_1())
        SET_FIELD(IString64_1, node.m_IString64_1);
    if (node.has_IString64_2())
        SET_FIELD(IString64_2, node.m_IString64_2);
    if (node.has_Text_1())
        SET_FIELD(Text_1, node.m_Text_1);
    if (node.has_Text_2())
        SET_FIELD(Text_2, node.m_Text_2);
    if (node.has_Blob_1())
        SET_FIELD(Blob_1, DS::Base64Encode(node.m_Blob_1.buffer(), node.m_Blob_1.size()));
    if (node.has_Blob_2())
        SET_FIELD(Blob_2, DS::Base64Encode(node.m_Blob_2.buffer(), node.m_Blob_2.size()));
    #undef SET_FIELD

    DS_DASSERT(fieldp - fieldbuf < 1024);
    *(fieldp - 1) = 0;  // Get rid of the last comma
    DS::String queryStr = "UPDATE vault.\"Nodes\"\n    SET ";
    queryStr += fieldbuf;
    queryStr += "\n    WHERE idx=$1";
    parms.set(0, node.m_NodeIdx);

    check_postgres();
    PGresult* result = PQexecParams(s_postgres, queryStr.c_str(),
                                    parmcount, 0, parms.m_values, 0, 0, 0);
    if (PQresultStatus(result) != PGRES_COMMAND_OK) {
        fprintf(stderr, "%s:%d:\n    Postgres UPDATE error: %s\n",
                __FILE__, __LINE__, PQerrorMessage(s_postgres));
        PQclear(result);
        return false;
    }
    PQclear(result);
    return true;
}