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/* Copyright (c) 2008, 2016, 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_PSI_BASE_H
#define MYSQL_PSI_BASE_H
#ifdef __cplusplus
extern "C" {
#endif
/**
@file mysql/psi/psi_base.h
Performance schema instrumentation interface.
@defgroup Instrumentation_interface Instrumentation Interface
@ingroup Performance_schema
@{
*/
#define PSI_INSTRUMENT_ME 0
#define PSI_NOT_INSTRUMENTED 0
/**
Global flag.
This flag indicate that an instrumentation point is a global variable,
or a singleton.
*/
#define PSI_FLAG_GLOBAL (1 << 0)
/**
Mutable flag.
This flag indicate that an instrumentation point is a general placeholder,
that can mutate into a more specific instrumentation point.
*/
#define PSI_FLAG_MUTABLE (1 << 1)
#define PSI_FLAG_THREAD (1 << 2)
/**
Stage progress flag.
This flag apply to the stage instruments only.
It indicates the instrumentation provides progress data.
*/
#define PSI_FLAG_STAGE_PROGRESS (1 << 3)
/**
Shared Exclusive flag.
Indicates that rwlock support the shared exclusive state.
*/
#define PSI_RWLOCK_FLAG_SX (1 << 4)
/**
Transferable flag.
This flag indicate that an instrumented object can
be created by a thread and destroyed by another thread.
*/
#define PSI_FLAG_TRANSFER (1 << 5)
/**
Volatility flag.
This flag indicate that an instrumented object
has a volatility (life cycle) comparable
to the volatility of a session.
*/
#define PSI_FLAG_VOLATILITY_SESSION (1 << 6)
#ifdef HAVE_PSI_INTERFACE
/**
@def PSI_VERSION_1
Performance Schema Interface number for version 1.
This version is supported.
*/
#define PSI_VERSION_1 1
/**
@def PSI_VERSION_2
Performance Schema Interface number for version 2.
This version is not implemented, it's a placeholder.
*/
#define PSI_VERSION_2 2
/**
@def PSI_CURRENT_VERSION
Performance Schema Interface number for the most recent version.
The most current version is @c PSI_VERSION_1
*/
#define PSI_CURRENT_VERSION 1
/**
@def USE_PSI_1
Define USE_PSI_1 to use the interface version 1.
*/
/**
@def USE_PSI_2
Define USE_PSI_2 to use the interface version 2.
*/
/**
@def HAVE_PSI_1
Define HAVE_PSI_1 if the interface version 1 needs to be compiled in.
*/
/**
@def HAVE_PSI_2
Define HAVE_PSI_2 if the interface version 2 needs to be compiled in.
*/
#ifndef USE_PSI_2
#ifndef USE_PSI_1
#define USE_PSI_1
#endif
#endif
#ifdef USE_PSI_1
#define HAVE_PSI_1
#endif
#ifdef USE_PSI_2
#define HAVE_PSI_2
#endif
/*
Allow to override PSI_XXX_CALL at compile time
with more efficient implementations, if available.
If nothing better is available,
make a dynamic call using the PSI_server function pointer.
*/
#define PSI_DYNAMIC_CALL(M) PSI_server->M
#endif /* HAVE_PSI_INTERFACE */
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* MYSQL_PSI_BASE_H */
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