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https://github.com/codership/wsrep-lib.git
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fb14883547
When member joins the group and needs to receive an SST it won't receive the corresponding menbership view event because the SST happens after the event and will already include the effects of all events ordered before it. The view then must be recovered from the received state. Minor renames and cleanups. References codership/wsrep-lib#18
85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*
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* Copyright (C) 2018 Codership Oy <info@codership.com>
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*
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* This file is part of wsrep-lib.
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*
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* Wsrep-lib is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* Wsrep-lib 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 for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file db_client.hpp */
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#ifndef WSREP_DB_CLIENT_HPP
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#define WSREP_DB_CLIENT_HPP
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#include "db_server_state.hpp"
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#include "db_storage_engine.hpp"
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#include "db_client_state.hpp"
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#include "db_client_service.hpp"
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#include "db_high_priority_service.hpp"
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namespace db
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{
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class server;
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class client
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{
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public:
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struct stats
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{
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long long commits;
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long long rollbacks;
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long long replays;
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stats()
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: commits(0)
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, rollbacks(0)
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, replays(0)
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{ }
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};
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client(db::server&,
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wsrep::client_id,
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enum wsrep::client_state::mode,
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const db::params&);
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bool bf_abort(wsrep::seqno);
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const struct stats stats() const { return stats_; }
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void store_globals()
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{
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client_state_.store_globals();
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}
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void reset_globals()
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{ }
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void start();
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wsrep::client_state& client_state() { return client_state_; }
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wsrep::client_service& client_service() { return client_service_; }
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bool do_2pc() const { return false; }
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private:
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friend class db::server_state;
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friend class db::client_service;
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friend class db::high_priority_service;
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template <class F> int client_command(F f);
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void run_one_transaction();
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void reset_error();
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void report_progress(size_t) const;
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wsrep::default_mutex mutex_;
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wsrep::default_condition_variable cond_;
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const db::params& params_;
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db::server& server_;
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db::server_state& server_state_;
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db::client_state client_state_;
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db::client_service client_service_;
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db::storage_engine::transaction se_trx_;
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struct stats stats_;
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};
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}
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#endif // WSREP_DB_CLIENT_HPP
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