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Depending on the DBMS client session allocation strategy the client id may or may not be available when the client_session is constructed, therefore there should be a method to assign an id after construction. Close/cleanup methods were added to clean up open transactions appropriately.
51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
//
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// Copyright (C) 2018 Codership Oy <info@codership.com>
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//
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#include "db_client_service.hpp"
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#include "db_client.hpp"
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int db::client_service::apply(const wsrep::const_buffer&)
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{
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db::client* client(client_state_.client());
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client->se_trx_.start(client);
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client->se_trx_.apply(client_state_.transaction());
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return 0;
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}
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int db::client_service::commit(const wsrep::ws_handle&,
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const wsrep::ws_meta&)
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{
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db::client* client(client_state_.client());
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int ret(client_state_.before_commit());
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if (ret == 0) client->se_trx_.commit();
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ret = ret || client_state_.ordered_commit();
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ret = ret || client_state_.after_commit();
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return ret;
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}
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int db::client_service::rollback()
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{
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db::client* client(client_state_.client());
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int ret(client_state_.before_rollback());
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assert(ret == 0);
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client->se_trx_.rollback();
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ret = client_state_.after_rollback();
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assert(ret == 0);
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return ret;
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}
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enum wsrep::provider::status
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db::client_service::replay()
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{
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wsrep::high_priority_context high_priority_context(client_state_);
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auto ret(client_state_.provider().replay(
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client_state_.transaction().ws_handle(),
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&client_state_));
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if (ret == wsrep::provider::success)
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{
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++client_state_.client()->stats_.replays;
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}
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return ret;
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}
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