50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
/*
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* Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
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*
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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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*
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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 hereby grant you an additional
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* permission to link the program and your derivative works with the
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* separately licensed software that they have included with MySQL.
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*
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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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*
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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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*/
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// MySQL DB access module, for use by plugins and others
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// For the module that implements interactive DB functionality see mod_db
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#ifndef PLUGIN_X_CLIENT_XQUERY_INSTANCES_H_
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#define PLUGIN_X_CLIENT_XQUERY_INSTANCES_H_
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#include <memory>
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namespace xcl {
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class Query_instances {
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public:
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using Instance_id = uint64_t;
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public:
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virtual ~Query_instances() {}
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virtual Instance_id instances_fetch_begin() = 0;
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virtual void instances_fetch_end() = 0;
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virtual bool is_instance_active(const Instance_id id) = 0;
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};
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} // namespace xcl
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#endif // PLUGIN_X_CLIENT_XQUERY_INSTANCES_H_
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