resource_group.h

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/* Copyright (c) 2014, 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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   documentation.  The authors of MySQL hereby grant you an additional
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
#ifndef DD__RESOURCE_GROUP_INCLUDED
#define DD__RESOURCE_GROUP_INCLUDED
 
#include <bitset>  // std::bitset
#include <memory>  // std::unique_ptr
 
#include "sql/dd/types/entity_object.h"        // dd::Entity_object
#include "sql/dd/types/entity_object_table.h"  // dd::Entity_object_table
#include "sql/resourcegroups/resource_group_basic_types.h"  // Range, Type
 
struct MDL_key;
 
namespace dd {
 
class Object_type;
class Primary_id_key;
class Resource_group_impl;
class Global_name_key;
class Void_key;
 
namespace tables {
class Resource_groups;
}
 
static constexpr int CPU_MASK_SIZE = 1024;
class Resource_group : virtual public Entity_object {
 public:
  typedef Resource_group_impl Impl;
  typedef Resource_group Cache_partition;
  typedef tables::Resource_groups DD_table;
  typedef Primary_id_key Id_key;
  typedef Global_name_key Name_key;
  typedef Void_key Aux_key;
 
 public:
  ~Resource_group() override = default;
 
  virtual bool update_id_key(Id_key *key) const {
    return update_id_key(key, id());
  }
  static bool update_id_key(Id_key *key, Object_id id);
 
  virtual bool update_name_key(Name_key *key) const {
    return update_name_key(key, name());
  }
  static bool update_name_key(Name_key *key, const String_type &name);
 
  virtual bool update_aux_key(Aux_key *) const { return true; }
 
  virtual const resourcegroups::Type &resource_group_type() const = 0;
  virtual void set_resource_group_type(const resourcegroups::Type &type) = 0;
 
  virtual bool resource_group_enabled() const = 0;
  virtual void set_resource_group_enabled(bool enabled) = 0;
 
  virtual const std::bitset<CPU_MASK_SIZE> &cpu_id_mask() const = 0;
  virtual void set_cpu_id_mask(
      const std::vector<resourcegroups::Range> &vcpu_vec) = 0;
 
  virtual int thread_priority() const = 0;
  virtual void set_thread_priority(int priority) = 0;
 
  virtual Resource_group *clone() const = 0;
 
  /**
    Allocate a new object which can serve as a placeholder for the original
    object in the Dictionary_client's dropped registry (i.e. it has the same
    keys as original).
  */
  virtual Resource_group *clone_dropped_object_placeholder() const = 0;
 
  static void create_mdl_key(const String_type &name, MDL_key *key);
};
}  // namespace dd
 
#endif  // DD__RESOURCE_GROUP_INCLUDED