pfs_setup_object.h

/* Copyright (c) 2010, 2023, 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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  but not limited to OpenSSL) that is licensed under separate terms,
  as designated in a particular file or component or in included license
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  This program is distributed in the hope that it will be useful,
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  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 PFS_SETUP_OBJECT_H
#define PFS_SETUP_OBJECT_H

/**
  @file storage/perfschema/pfs_setup_object.h
  Performance schema setup object (declarations).
*/

#include "pfs_lock.h"
#include "lf.h"

class String;
struct PFS_global_param;
class PFS_opaque_container_page;

/**
  @addtogroup Performance_schema_buffers
  @{
*/

/** Hash key for @sa PFS_setup_object. */
struct PFS_setup_object_key
{
  /**
    Hash search key.
    This has to be a string for LF_HASH,
    the format is "<enum_object_type><schema_name><0x00><object_name><0x00>"
  */
  char m_hash_key[1 + NAME_LEN + 1 + NAME_LEN + 1];
  uint m_key_length;
};

/** A setup_object record. */
struct PFS_ALIGNED PFS_setup_object
{
  enum_object_type get_object_type()
  {
    return (enum_object_type) m_key.m_hash_key[0];
  }

  /** Internal lock. */
  pfs_lock m_lock;
  /** Hash key. */
  PFS_setup_object_key m_key;
  /** Schema name. Points inside m_key. */
  const char *m_schema_name;
  /** Length of @c m_schema_name. */
  uint m_schema_name_length;
  /** Object name. Points inside m_key. */
  const char *m_object_name;
  /** Length of @c m_object_name. */
  uint m_object_name_length;
  /** ENABLED flag. */
  bool m_enabled;
  /** TIMED flag. */
  bool m_timed;
  /** Container page. */
  PFS_opaque_container_page *m_page;
};

int init_setup_object(const PFS_global_param *param);
void cleanup_setup_object(void);
int init_setup_object_hash(const PFS_global_param *param);
void cleanup_setup_object_hash(void);

int insert_setup_object(enum_object_type object_type, const String *schema,
                        const String *object, bool enabled, bool timed);
int delete_setup_object(enum_object_type object_type, const String *schema,
                        const String *object);
int reset_setup_object(void);
long setup_object_count(void);

void lookup_setup_object(PFS_thread *thread,
                         enum_object_type object_type,
                         const char *schema_name, int schema_name_length,
                         const char *object_name, int object_name_length,
                         bool *enabled, bool *timed);

/* For show status. */

extern LF_HASH setup_object_hash;

/** @} */
#endif