72 lines
2.0 KiB
C++
72 lines
2.0 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_EXECUTOR_OB_SQL_EXECUTION_ID_MAP_H_
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#define OCEANBASE_EXECUTOR_OB_SQL_EXECUTION_ID_MAP_H_
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#include "lib/container/ob_id_map.h"
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#include "lib/hash/ob_hashmap.h"
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namespace oceanbase {
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namespace sql {
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class ObDistributedScheduler;
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class ObSqlExecutionIDMap {
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public:
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static const uint64_t OUTER_ID_BASE = UINT64_MAX / 4;
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static const int64_t EXECUTION_ID_TSI_HOLD_NUM = 4096;
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ObSqlExecutionIDMap() : inited_(false)
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{}
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~ObSqlExecutionIDMap()
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{}
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int init(int64_t num);
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bool is_inited() const
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{
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return inited_;
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}
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void destroy();
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static bool is_outer_id(const uint64_t id)
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{
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return common::OB_INVALID_ID != id && id >= OUTER_ID_BASE;
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}
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int assign(ObDistributedScheduler* value, uint64_t& id);
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int assign_external_id(const uint64_t id, ObDistributedScheduler* value);
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ObDistributedScheduler* fetch(const uint64_t id, const common::FetchMod mod = common::FM_SHARED);
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void revert(const uint64_t id, bool erase = false);
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template <typename CB>
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void traverse(CB& cb) const
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{
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inner_id_map_.traverse(cb);
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FOREACH(iter, outer_id_map_)
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{
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cb(iter->first);
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}
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}
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private:
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bool inited_;
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common::ObIDMap<ObDistributedScheduler, uint64_t, EXECUTION_ID_TSI_HOLD_NUM> inner_id_map_;
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common::hash::ObHashMap<uint64_t, std::pair<ObDistributedScheduler*, common::SpinRWLock*> > outer_id_map_;
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};
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} // namespace sql
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} // namespace oceanbase
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#endif // OCEANBASE_EXECUTOR_OB_SQL_EXECUTION_ID_MAP_H_
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