104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#ifndef OCEANBASE_SHARE_OB_SCHEMA_STATUS_PROXY_H_
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#define OCEANBASE_SHARE_OB_SCHEMA_STATUS_PROXY_H_
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#include "share/ob_define.h"
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#include "lib/oblog/ob_log.h"
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#include "lib/oblog/ob_log_module.h"
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#include "lib/utility/ob_print_utils.h"
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#include "lib/container/ob_iarray.h"
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#include "share/schema/ob_schema_struct.h"
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namespace oceanbase
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{
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namespace common
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{
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class ObMySQLProxy;
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class ObISQLClient;
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class ObAddr;
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namespace sqlclient
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{
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class ObMySQLResult;
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}
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}
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namespace share
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{
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class ObSchemaStatusUpdater
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{
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public:
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ObSchemaStatusUpdater(share::schema::ObRefreshSchemaStatus schema_status)
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: schema_status_(schema_status) {}
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virtual ~ObSchemaStatusUpdater() {}
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int operator() (common::hash::HashMapPair<uint64_t, share::schema::ObRefreshSchemaStatus> &entry);
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private:
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share::schema::ObRefreshSchemaStatus schema_status_;
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DISALLOW_COPY_AND_ASSIGN(ObSchemaStatusUpdater);
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};
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// dodge the bug :
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// all operation of __all_core_table must be single partition transaction
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class ObSchemaStatusProxy
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{
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public:
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static const char *OB_ALL_SCHEMA_STATUS_TNAME;
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static const char *TENANT_ID_CNAME;
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static const char *SNAPSHOT_TIMESTAMP_CNAME;
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static const char *READABLE_SCHEMA_VERSION_CNAME;
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static const char *CREATED_SCHEMA_VERSION_CNAME;
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static const int64_t TENANT_SCHEMA_STATUS_BUCKET_NUM = 100;
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public:
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ObSchemaStatusProxy(common::ObISQLClient &sql_proxy)
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: sql_proxy_(sql_proxy),
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schema_status_cache_(),
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is_inited_(false) {}
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virtual ~ObSchemaStatusProxy() {}
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int init();
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int nonblock_get(const uint64_t refresh_tenant_id,
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share::schema::ObRefreshSchemaStatus &refresh_schema_status);
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int get_refresh_schema_status(
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const uint64_t tenant_id,
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share::schema::ObRefreshSchemaStatus &refresh_schema_status);
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int get_refresh_schema_status(
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common::ObIArray<share::schema::ObRefreshSchemaStatus> &refresh_schema_status_array);
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int load_refresh_schema_status();
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int del_tenant_schema_status(const uint64_t tenant_id);
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int set_tenant_schema_status(
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const share::schema::ObRefreshSchemaStatus &refresh_schema_status);
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int update_schema_status(const share::schema::ObRefreshSchemaStatus &cur_schema_status);
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int load_refresh_schema_status(
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const uint64_t refresh_tenant_id,
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schema::ObRefreshSchemaStatus &refresh_schema_status);
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private:
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int check_inner_stat();
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private:
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common::ObISQLClient &sql_proxy_;
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common::hash::ObHashMap<uint64_t, share::schema::ObRefreshSchemaStatus, common::hash::ReadWriteDefendMode> schema_status_cache_;
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bool is_inited_;
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};
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} // end namespace share
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} // end namespace oceanbase
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#endif
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