86 lines
3.4 KiB
C++
86 lines
3.4 KiB
C++
/* Copyright (c) 2018, 2021, Alibaba and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL/PolarDB-X Engine hereby grant you an
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additional permission to link the program and your derivative works with the
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separately licensed software that they have included with
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MySQL/PolarDB-X Engine.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef CONSENSUS_RECOVERY_MANAGER_INCLUDE
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#define CONSENSUS_RECOVERY_MANAGER_INCLUDE
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// #include "my_global.h"
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#include "hash.h"
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#include "binlog.h"
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#include "xa.h"
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#include <map>
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#include <vector>
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#include <atomic>
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class ConsensusRecoveryManager {
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public:
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ConsensusRecoveryManager():inited(false) {};
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~ConsensusRecoveryManager() {};
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int init();
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int cleanup();
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std::map<uint64, XID*>& get_commit_index_map() { return consensus_commit_xid_map; }
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uint64 get_last_leader_term_index() { return last_leader_term_index; }
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void set_last_leader_term_index(uint64 last_leader_term_index_arg)
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{ last_leader_term_index = last_leader_term_index_arg; }
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// for recover
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void add_trx_to_total_commit_map(uint64 consensus_index, uint64 xid, ulonglong gcn, Gtid gtid);
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int collect_commit_trx_to_hash(
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memroot_unordered_map<my_xid, my_commit_gcn> &commit_list,
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MEM_ROOT *mem_root);
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void add_xid_to_commit_map(XID *xid);
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void clear_total_xid_map();
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void clear_all_map();
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uint64 get_max_consensus_index_from_recover_trx_hash();
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int truncate_commit_xid_map(uint64 consensus_index);
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bool is_recovering_trx_empty();
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// truncate the continuous prepared xids from the map
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int truncate_not_confirmed_xids_from_map(uint64 max_index_in_binlog_file);
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private:
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bool inited;
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PSI_mutex_key key_LOCK_consensuslog_recover_hash;
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mysql_mutex_t
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LOCK_consensuslog_recover_hash; // used to protect commit hash map
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uint64 last_leader_term_index;
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std::map<uint64, uint64>
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total_commit_trx_map; //<xid, consensusIndex> for save relation between
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// index and my_xid when recovering
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std::map<uint64, XID *>
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consensus_commit_xid_map; // <consensusIndex, xid> used to commit trx
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// when recovering
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public:
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std::map<uint64, Gtid>& get_total_gtid_map() { return total_xid_gtid_map; }
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std::map<uint64, ulonglong>& get_xid_gcn_map() { return total_xid_gcn_map; }
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void clear_xid_gcn_and_gtid_xid_map();
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private:
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std::map<uint64, Gtid> total_xid_gtid_map; // <xid, gtid> used to get gtid
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std::map<uint64, ulonglong> total_xid_gcn_map; //<xid, gcn> for save relation between my_xid and gcn when recovering
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};
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#endif
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