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/* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
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 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,
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
#ifndef MYSQL_MDL_H
#define MYSQL_MDL_H
/**
@file mysql/psi/mysql_mdl.h
Instrumentation helpers for metadata locks.
*/
#include "mysql/psi/psi.h"
#ifndef PSI_METADATA_CALL
#define PSI_METADATA_CALL(M) PSI_DYNAMIC_CALL(M)
#endif
/**
@defgroup Thread_instrumentation Metadata Instrumentation
@ingroup Instrumentation_interface
@{
*/
/**
@def mysql_mdl_create(K, M, A)
Instrumented metadata lock creation.
@param I Metadata lock identity
@param K Metadata key
@param T Metadata lock type
@param D Metadata lock duration
@param S Metadata lock status
@param F request source file
@param L request source line
*/
#ifdef HAVE_PSI_METADATA_INTERFACE
#define mysql_mdl_create(I, K, T, D, S, F, L) \
inline_mysql_mdl_create(I, K, T, D, S, F, L)
#else
#define mysql_mdl_create(I, K, T, D, S, F, L) NULL
#endif
#ifdef HAVE_PSI_METADATA_INTERFACE
#define mysql_mdl_set_status(L, S) \
inline_mysql_mdl_set_status(L, S)
#else
#define mysql_mdl_set_status(L, S) \
do {} while (0)
#endif
/**
@def mysql_mdl_destroy(M)
Instrumented metadata lock destruction.
@param M Metadata lock
*/
#ifdef HAVE_PSI_METADATA_INTERFACE
#define mysql_mdl_destroy(M) \
inline_mysql_mdl_destroy(M, __FILE__, __LINE__)
#else
#define mysql_mdl_destroy(M) \
do {} while (0)
#endif
#ifdef HAVE_PSI_METADATA_INTERFACE
static inline PSI_metadata_lock *
inline_mysql_mdl_create(void *identity,
const MDL_key *mdl_key,
enum_mdl_type mdl_type,
enum_mdl_duration mdl_duration,
MDL_wait::enum_wait_status mdl_status,
const char *src_file, uint src_line)
{
PSI_metadata_lock *result;
/* static_cast: Fit a round C++ enum peg into a square C int hole ... */
result= PSI_METADATA_CALL(create_metadata_lock)
(identity,
mdl_key,
static_cast<opaque_mdl_type> (mdl_type),
static_cast<opaque_mdl_duration> (mdl_duration),
static_cast<opaque_mdl_status> (mdl_status),
src_file, src_line);
return result;
}
static inline void inline_mysql_mdl_set_status(
PSI_metadata_lock *psi,
MDL_wait::enum_wait_status mdl_status)
{
if (psi != NULL)
PSI_METADATA_CALL(set_metadata_lock_status)(psi, mdl_status);
}
static inline void inline_mysql_mdl_destroy(
PSI_metadata_lock *psi,
const char *src_file, uint src_line)
{
if (psi != NULL)
PSI_METADATA_CALL(destroy_metadata_lock)(psi);
}
#endif /* HAVE_PSI_METADATA_INTERFACE */
/** @} (end of group Metadata_instrumentation) */
#endif