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/* Copyright (c) 2011, 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_IDLE_H
#define MYSQL_IDLE_H
/**
@file mysql/psi/mysql_idle.h
Instrumentation helpers for idle waits.
*/
#include "mysql/psi/psi.h"
#ifndef PSI_IDLE_CALL
#define PSI_IDLE_CALL(M) PSI_DYNAMIC_CALL(M)
#endif
/**
@defgroup Idle_instrumentation Idle Instrumentation
@ingroup Instrumentation_interface
@{
*/
/**
@def MYSQL_START_IDLE_WAIT
Instrumentation helper for table io_waits.
This instrumentation marks the start of a wait event.
@param LOCKER the locker
@param STATE the locker state
@sa MYSQL_END_IDLE_WAIT.
*/
#ifdef HAVE_PSI_IDLE_INTERFACE
#define MYSQL_START_IDLE_WAIT(LOCKER, STATE) \
LOCKER= inline_mysql_start_idle_wait(STATE, __FILE__, __LINE__)
#else
#define MYSQL_START_IDLE_WAIT(LOCKER, STATE) \
do {} while (0)
#endif
/**
@def MYSQL_END_IDLE_WAIT
Instrumentation helper for idle waits.
This instrumentation marks the end of a wait event.
@param LOCKER the locker
@sa MYSQL_START_IDLE_WAIT.
*/
#ifdef HAVE_PSI_IDLE_INTERFACE
#define MYSQL_END_IDLE_WAIT(LOCKER) \
inline_mysql_end_idle_wait(LOCKER)
#else
#define MYSQL_END_IDLE_WAIT(LOCKER) \
do {} while (0)
#endif
#ifdef HAVE_PSI_IDLE_INTERFACE
/**
Instrumentation calls for MYSQL_START_IDLE_WAIT.
@sa MYSQL_END_IDLE_WAIT.
*/
static inline struct PSI_idle_locker *
inline_mysql_start_idle_wait(PSI_idle_locker_state *state,
const char *src_file, int src_line)
{
struct PSI_idle_locker *locker;
locker= PSI_IDLE_CALL(start_idle_wait)(state, src_file, src_line);
return locker;
}
/**
Instrumentation calls for MYSQL_END_IDLE_WAIT.
@sa MYSQL_START_IDLE_WAIT.
*/
static inline void
inline_mysql_end_idle_wait(struct PSI_idle_locker *locker)
{
if (likely(locker != NULL))
PSI_IDLE_CALL(end_idle_wait)(locker);
}
#endif
/** @} (end of group Idle_instrumentation) */
#endif
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