66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
/* Copyright (c) 2018, 2021, Alibaba and/or its affiliates. All rights reserved.
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License, version 2.0,
|
|
as published by the Free Software Foundation.
|
|
This program is also distributed with certain software (including
|
|
but not limited to OpenSSL) that is licensed under separate terms,
|
|
as designated in a particular file or component or in included license
|
|
documentation. The authors of MySQL/PolarDB-X Engine hereby grant you an
|
|
additional permission to link the program and your derivative works with the
|
|
separately licensed software that they have included with
|
|
MySQL/PolarDB-X Engine.
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License, version 2.0, for more details.
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
|
|
|
|
#ifndef CONSENSUS_LOG_INDEX_INCLUDE
|
|
#define CONSENSUS_LOG_INDEX_INCLUDE
|
|
|
|
// #include "my_global.h"
|
|
#include "mysqld.h"
|
|
#include <deque>
|
|
#include <vector>
|
|
#include <string>
|
|
|
|
|
|
struct ConsensusLogIndexEntry {
|
|
uint64 index;
|
|
ulong timestamp;
|
|
std::string file_name;
|
|
};
|
|
|
|
|
|
class ConsensusLogIndex {
|
|
public:
|
|
ConsensusLogIndex():inited(false) {};
|
|
~ConsensusLogIndex() {};
|
|
|
|
int init();
|
|
int cleanup();
|
|
|
|
int add_to_index_list(uint64 consensus_index, ulong timastamp, std::string & log_name);
|
|
int truncate_before(std::string & log_name); // retain log_name
|
|
int truncate_after(std::string & log_name); // retain log_name
|
|
|
|
int get_log_file_from_index(uint64 consensus_index, std::string &log_name);
|
|
int get_log_file_by_timestamp(ulong timestamp, std::string &log_name);
|
|
int get_log_file_list(std::vector<std::string> &file_list);
|
|
uint64 get_start_index_of_file(const std::string & log_name);
|
|
std::string get_last_log_file_name();
|
|
|
|
uint64 get_first_index();
|
|
|
|
private:
|
|
bool inited;
|
|
PSI_mutex_key key_LOCK_consensuslog_index;
|
|
mysql_mutex_t LOCK_consensuslog_index;
|
|
std::deque<ConsensusLogIndexEntry> index_list; // hold all the binlogs' index
|
|
};
|
|
|
|
|
|
#endif
|