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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSScoreUserExt
*
* @brief This header file provides data structures used by the implementation
* and the @ref RTEMSImplApplConfig to define
* ::_User_extensions_Initial_count, ::_User_extensions_Initial_extensions,
* and ::_User_extensions_Initial_switch_controls.
*/
/*
* COPYRIGHT (c) 1989-2009.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RTEMS_SCORE_USEREXTDATA_H
#define _RTEMS_SCORE_USEREXTDATA_H
#include <rtems/score/userext.h>
#include <rtems/score/chain.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @addtogroup RTEMSScoreUserExt
*
* @{
*/
/**
* @brief Manages the switch callouts.
*
* They are managed separately from other extensions for performance reasons.
*/
typedef struct {
Chain_Node Node;
User_extensions_thread_switch_extension thread_switch;
} User_extensions_Switch_control;
/**
* @brief Manages each user extension set.
*
* The switch control is part of the extensions control even if not used due to
* the extension not having a switch handler.
*/
typedef struct {
Chain_Node Node;
User_extensions_Switch_control Switch;
User_extensions_Table Callouts;
} User_extensions_Control;
/**
* @brief The count of initial user extensions.
*
* Application provided via <rtems/confdefs.h>.
*/
extern const size_t _User_extensions_Initial_count;
/**
* @brief The table of initial user extensions.
*
* Application provided via <rtems/confdefs.h>.
*/
extern const User_extensions_Table _User_extensions_Initial_extensions[];
/**
* @brief A spare switch control for each initial user extension.
*
* Application provided via <rtems/confdefs.h>.
*/
extern User_extensions_Switch_control
_User_extensions_Initial_switch_controls[];
/** @} */
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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