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Editing: mysql_statement.h

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 02110-1335  USA */

#ifndef MYSQL_STATEMENT_H
#define MYSQL_STATEMENT_H

/**
  @file mysql/psi/mysql_statement.h
  Instrumentation helpers for statements.
*/

#include "mysql/psi/psi.h"

class Diagnostics_area;
typedef const struct charset_info_st CHARSET_INFO;

#ifndef PSI_STATEMENT_CALL
#define PSI_STATEMENT_CALL(M) PSI_DYNAMIC_CALL(M)
#endif

#ifndef PSI_DIGEST_CALL
#define PSI_DIGEST_CALL(M) PSI_DYNAMIC_CALL(M)
#endif

/**
  @defgroup Statement_instrumentation Statement Instrumentation
  @ingroup Instrumentation_interface
  @{
*/

/**
  @def mysql_statement_register(P1, P2, P3)
  Statement registration.
*/
#ifdef HAVE_PSI_STATEMENT_INTERFACE
#define mysql_statement_register(P1, P2, P3) \
  inline_mysql_statement_register(P1, P2, P3)
#else
#define mysql_statement_register(P1, P2, P3) \
  do {} while (0)
#endif

#ifdef HAVE_PSI_STATEMENT_DIGEST_INTERFACE
  #define MYSQL_DIGEST_START(LOCKER) \
    inline_mysql_digest_start(LOCKER)
#else
  #define MYSQL_DIGEST_START(LOCKER) \
    NULL
#endif

#ifdef HAVE_PSI_STATEMENT_DIGEST_INTERFACE
  #define MYSQL_DIGEST_END(LOCKER, DIGEST) \
    inline_mysql_digest_end(LOCKER, DIGEST)
#else
  #define MYSQL_DIGEST_END(LOCKER, DIGEST) \
    do {} while (0)
#endif

#ifdef HAVE_PSI_STATEMENT_INTERFACE
  #define MYSQL_START_STATEMENT(STATE, K, DB, DB_LEN, CS, SPS) \
    inline_mysql_start_statement(STATE, K, DB, DB_LEN, CS, SPS, __FILE__, __LINE__)
#else
  #define MYSQL_START_STATEMENT(STATE, K, DB, DB_LEN, CS, SPS) \
    NULL
#endif

#ifdef HAVE_PSI_STATEMENT_INTERFACE
  #define MYSQL_REFINE_STATEMENT(LOCKER, K) \
    inline_mysql_refine_statement(LOCKER, K)
#else
  #define MYSQL_REFINE_STATEMENT(LOCKER, K) \
    NULL
#endif

#ifdef HAVE_PSI_STATEMENT_INTERFACE
  #define MYSQL_SET_STATEMENT_TEXT(LOCKER, P1, P2) \
    inline_mysql_set_statement_text(LOCKER, P1, P2)
#else
  #define MYSQL_SET_STATEMENT_TEXT(LOCKER, P1, P2) \
    do {} while (0)
#endif

#ifdef HAVE_PSI_STATEMENT_INTERFACE
  #define MYSQL_SET_STATEMENT_LOCK_TIME(LOCKER, P1) \
    inline_mysql_set_statement_lock_time(LOCKER, P1)
#else
  #define MYSQL_SET_STATEMENT_LOCK_TIME(LOCKER, P1) \
    do {} while (0)
#endif

#ifdef HAVE_PSI_STATEMENT_INTERFACE
  #define MYSQL_SET_STATEMENT_ROWS_SENT(LOCKER, P1) \
    inline_mysql_set_statement_rows_sent(LOCKER, P1)
#else
  #define MYSQL_SET_STATEMENT_ROWS_SENT(LOCKER, P1) \
    do {} while (0)
#endif

#ifdef HAVE_PSI_STATEMENT_INTERFACE
  #define MYSQL_SET_STATEMENT_ROWS_EXAMINED(LOCKER, P1) \
    inline_mysql_set_statement_rows_examined(LOCKER, P1)
#else
  #define MYSQL_SET_STATEMENT_ROWS_EXAMINED(LOCKER, P1) \
    do {} while (0)
#endif

#ifdef HAVE_PSI_STATEMENT_INTERFACE
  #define MYSQL_END_STATEMENT(LOCKER, DA) \
    inline_mysql_end_statement(LOCKER, DA)
#else
  #define MYSQL_END_STATEMENT(LOCKER, DA) \
    do {} while (0)
#endif

#ifdef HAVE_PSI_STATEMENT_INTERFACE
static inline void inline_mysql_statement_register(
  const char *category, PSI_statement_info *info, int count)
{
  PSI_STATEMENT_CALL(register_statement)(category, info, count);
}

#ifdef HAVE_PSI_STATEMENT_DIGEST_INTERFACE
static inline struct PSI_digest_locker *
inline_mysql_digest_start(PSI_statement_locker *locker)
{
  PSI_digest_locker* digest_locker= NULL;

if (psi_likely(locker != NULL))
    digest_locker= PSI_DIGEST_CALL(digest_start)(locker);
  return digest_locker;
}
#endif

#ifdef HAVE_PSI_STATEMENT_DIGEST_INTERFACE
static inline void
inline_mysql_digest_end(PSI_digest_locker *locker, const sql_digest_storage *digest)
{
  if (psi_likely(locker != NULL))
    PSI_DIGEST_CALL(digest_end)(locker, digest);
}
#endif

static inline struct PSI_statement_locker *
inline_mysql_start_statement(PSI_statement_locker_state *state,
                             PSI_statement_key key,
                             const char *db, size_t db_len,
                             CHARSET_INFO *charset,
                             PSI_sp_share *sp_share,
                             const char *src_file, uint src_line)
{
  PSI_statement_locker *locker;
  locker= PSI_STATEMENT_CALL(get_thread_statement_locker)(state, key, charset,
                                                          sp_share);
  if (psi_likely(locker != NULL))
    PSI_STATEMENT_CALL(start_statement)(locker, db, (uint)db_len, src_file, src_line);
  return locker;
}

static inline struct PSI_statement_locker *
inline_mysql_refine_statement(PSI_statement_locker *locker,
                              PSI_statement_key key)
{
  if (psi_likely(locker != NULL))
  {
    locker= PSI_STATEMENT_CALL(refine_statement)(locker, key);
  }
  return locker;
}

static inline void
inline_mysql_set_statement_text(PSI_statement_locker *locker,
                                const char *text, uint text_len)
{
  if (psi_likely(locker != NULL))
  {
    PSI_STATEMENT_CALL(set_statement_text)(locker, text, text_len);
  }
}

static inline void
inline_mysql_set_statement_lock_time(PSI_statement_locker *locker,
                                     ulonglong count)
{
  if (psi_likely(locker != NULL))
  {
    PSI_STATEMENT_CALL(set_statement_lock_time)(locker, count);
  }
}

static inline void
inline_mysql_set_statement_rows_sent(PSI_statement_locker *locker,
                                     ulonglong count)
{
  if (psi_likely(locker != NULL))
  {
    PSI_STATEMENT_CALL(set_statement_rows_sent)(locker, count);
  }
}

static inline void
inline_mysql_set_statement_rows_examined(PSI_statement_locker *locker,
                                         ulonglong count)
{
  if (psi_likely(locker != NULL))
  {
    PSI_STATEMENT_CALL(set_statement_rows_examined)(locker, count);
  }
}

static inline void
inline_mysql_end_statement(struct PSI_statement_locker *locker,
                           Diagnostics_area *stmt_da)
{
  PSI_STAGE_CALL(end_stage)();
  if (psi_likely(locker != NULL))
    PSI_STATEMENT_CALL(end_statement)(locker, stmt_da);
}
#endif

/** @} (end of group Statement_instrumentation) */

#endif

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