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wsrep-lib/dbsim/db_client_service.hpp
Teemu Ollakka f3c8392ea8 Removed SR store implementation detail from wsrep-lib
The following was moved to application side implementation:

- Removed sr_store from streaming context.
- Removed sr_state from transaction.
- Removed get_binlog_cache() from client_service interface.

Other:
- Add SR applier reference to append_fragment_and_commit() to
  make it available for application.
- Add separate interface call to rollback SR transactions
  on disconnect. Rolling back SR transactions due to rollback
  fragment and rolling back SR transactions due to disconnect have
  different behaviors. Have separate calls for these different
  cases for clarity.
- Remove non-const transaction accessor, not needed anymore because
  SR state has been moved to application side.
- Remove unneeded set_fragments_from_table().
2022-10-07 10:40:59 +03:00

107 lines
3.0 KiB
C++

/*
* Copyright (C) 2018 Codership Oy <info@codership.com>
*
* This file is part of wsrep-lib.
*
* Wsrep-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Wsrep-lib 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef WSREP_DB_CLIENT_SERVICE_HPP
#define WSREP_DB_CLIENT_SERVICE_HPP
#include "wsrep/client_service.hpp"
#include "wsrep/transaction.hpp"
namespace db
{
class client;
class client_state;
class client_service : public wsrep::client_service
{
public:
client_service(db::client& client);
bool interrupted(wsrep::unique_lock<wsrep::mutex>&)
const override
{ return false; }
void reset_globals() override { }
void store_globals() override { }
int prepare_data_for_replication() override
{
return 0;
}
void cleanup_transaction() override { }
size_t bytes_generated() const override
{
return 0;
}
bool statement_allowed_for_streaming() const override
{
return true;
}
int prepare_fragment_for_replication(wsrep::mutable_buffer&,
size_t& position) override
{
position = 0;
return 0;
}
int remove_fragments() override { return 0; }
int bf_rollback() override;
void will_replay() override { }
void signal_replayed() override { }
void wait_for_replayers(wsrep::unique_lock<wsrep::mutex>&) override { }
enum wsrep::provider::status replay()
override;
enum wsrep::provider::status replay_unordered() override
{
return wsrep::provider::success;
}
void emergency_shutdown() override { ::abort(); }
enum wsrep::provider::status commit_by_xid() override
{
return wsrep::provider::success;
}
bool is_explicit_xa() override
{
return false;
}
bool is_xa_rollback() override
{
return false;
}
void debug_sync(const char*) override { }
void debug_crash(const char*) override { }
int fragment_cache_remove_transaction(
const wsrep::id&,
wsrep::transaction_id) override
{
return (0);
}
private:
db::client& client_;
wsrep::client_state& client_state_;
};
}
#endif // WSREP_DB_CLIENT_SERVICE_HPP