resource_group_sql_cmd.h

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/* Copyright (c) 2017, 2022, 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.
 
  This program is also distributed with certain software (including
  but not limited to OpenSSL) that is licensed under separate terms,
  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
  separately licensed software that they have included with MySQL.
 
  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
  along with this program; if not, write to the Free Software
  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_