resource_group_sql_cmd.h

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/* Copyright (c) 2017, 2024, Oracle and/or its affiliates.
 
  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.
 
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  as designated in a particular file or component or in included license
  documentation.  The authors of MySQL hereby grant you an additional
  permission to link the program and your derivative works with the
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  the program or referenced in the documentation.
 
  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
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  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
#ifndef RESOURCEGROUPS_RESOURCE_GROUP_SQL_CMD_H_
#define RESOURCEGROUPS_RESOURCE_GROUP_SQL_CMD_H_
 
#include "lex_string.h"
#include "my_inttypes.h"
#include "my_sqlcommand.h"
#include "sql/mem_root_array.h"
#include "sql/resourcegroups/resource_group_basic_types.h"  // Type, Range
#include "sql/sql_cmd.h"
 
class PT_alter_resource_group;
class PT_create_resource_group;
class PT_drop_resource_group;
class PT_set_resource_group;
class THD;
 
namespace resourcegroups {
 
/**
  Sql_cmd_create_resource_group represents CREATE RESOURCE GROUP statement.
*/
 
class Sql_cmd_create_resource_group : public Sql_cmd {
  friend class ::PT_create_resource_group;
 
 public:
  Sql_cmd_create_resource_group(const LEX_CSTRING &name, const Type type,
                                const Mem_root_array<Range> *cpu_list,
                                int priority, bool enabled)
      : m_name(name),
        m_type(type),
        m_cpu_list(cpu_list),
        m_priority(priority),
        m_enabled(enabled) {}
 
  enum_sql_command sql_command_code() const override {
    return SQLCOM_CREATE_RESOURCE_GROUP;
  }
 
  bool execute(THD *thd) override;
 
 private:
  const LEX_CSTRING m_name;
  const Type m_type;
  const Mem_root_array<Range> *m_cpu_list;
  int m_priority;
  bool m_enabled;
};
 
/**
  Sql_cmd_alter_resource_group represents ALTER RESOURCE GROUP statement.
*/
 
class Sql_cmd_alter_resource_group : public Sql_cmd {
  friend class ::PT_alter_resource_group;
 
 public:
  Sql_cmd_alter_resource_group(const LEX_CSTRING &name,
                               const Mem_root_array<Range> *cpu_list,
                               int priority, bool enable, bool force,
                               bool use_enable)
      : m_name(name),
        m_cpu_list(cpu_list),
        m_priority(priority),
        m_enable(enable),
        m_force(force),
        m_use_enable(use_enable) {}
 
  enum_sql_command sql_command_code() const override {
    return SQLCOM_ALTER_RESOURCE_GROUP;
  }
 
  bool execute(THD *thd) override;
 
 private:
  const LEX_CSTRING m_name;
  const Mem_root_array<Range> *m_cpu_list;
  int m_priority;
  bool m_enable;
  bool m_force;
  bool m_use_enable;
};
 
/**
  Sql_cmd_drop_resource_group represents DROP RESOURCE GROUP statement.
*/
 
class Sql_cmd_drop_resource_group : public Sql_cmd {
  friend class ::PT_drop_resource_group;
 
 public:
  Sql_cmd_drop_resource_group(const LEX_CSTRING &name, bool force)
      : m_name(name), m_force(force) {}
 
  enum_sql_command sql_command_code() const override {
    return SQLCOM_DROP_RESOURCE_GROUP;
  }
 
  bool execute(THD *thd) override;
 
 private:
  const LEX_CSTRING m_name;
  bool m_force;
};
 
/**
  Sql_cmd_set_resource_group represents SET RESOURCE GROUP statement.
*/
 
class Sql_cmd_set_resource_group final : public Sql_cmd {
  friend class ::PT_set_resource_group;
 
 public:
  Sql_cmd_set_resource_group(const LEX_CSTRING &name,
                             Mem_root_array<ulonglong> *thread_id_list)
      : m_name(name), m_thread_id_list(thread_id_list) {}
 
  enum_sql_command sql_command_code() const override {
    return SQLCOM_SET_RESOURCE_GROUP;
  }
 
  bool execute(THD *thd) override;
  bool prepare(THD *thd) override;
 
 private:
  const LEX_CSTRING m_name;
  Mem_root_array<ulonglong> *m_thread_id_list;
};
}  // namespace resourcegroups
#endif  // RESOURCEGROUPS_RESOURCE_GROUP_SQL_CMD_H_