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/**
* @file
*
* @ingroup RTEMSScoreUserExt
*
* @brief User Extension Handler Data Structures
*/
/*
* COPYRIGHT (c) 1989-2009.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#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;
/** @} */
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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