63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/* Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef COMPONENTS_SERVICES_MYSQL_MUTEX_BITS_H
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#define COMPONENTS_SERVICES_MYSQL_MUTEX_BITS_H
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/**
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@file
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ABI for instrumented mutexes.
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*/
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#include <mysql/components/services/thr_mutex_bits.h>
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/**
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@defgroup psi_api_mutex Mutex Instrumentation (API)
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@ingroup psi_api
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@{
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*/
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/**
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An instrumented mutex structure.
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@c mysql_mutex_t is a drop-in replacement for @c my_mutex_t.
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@sa mysql_mutex_assert_owner
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@sa mysql_mutex_assert_not_owner
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@sa mysql_mutex_init
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@sa mysql_mutex_lock
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@sa mysql_mutex_unlock
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@sa mysql_mutex_destroy
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*/
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struct mysql_mutex_t {
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/** The real mutex. */
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my_mutex_t m_mutex;
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/**
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The instrumentation hook.
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Note that this hook is not conditionally defined,
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for binary compatibility of the @c mysql_mutex_t interface.
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*/
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struct PSI_mutex *m_psi{nullptr};
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};
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/** @} (end of group psi_api_mutex) */
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#endif /* COMPONENTS_SERVICES_MYSQL_MUTEX_BITS_H */
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