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/**
* @file
*
* @brief POSIX Key Private Support
*
* This include file contains all the private support information for
* POSIX key.
*/
/*
* Copyright (c) 2012 Zhongwei Yao.
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
* Copyright (c) 2016 embedded brains GmbH.
*
* 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_POSIX_KEY_H
#define _RTEMS_POSIX_KEY_H
#include <pthread.h>
#include <rtems/score/chain.h>
#include <rtems/score/object.h>
#include <rtems/score/rbtree.h>
#include <rtems/score/thread.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup POSIX_KEY POSIX Key
*
* @ingroup POSIXAPI
*
*/
/**@{**/
/**
* @brief Represents POSIX key and value pair.
*/
typedef struct {
/**
* @brief The chain node for the key value pairs chain in POSIX_Keys_Control.
*/
Chain_Node Key_node;
/**
* @brief The tree node for the lookup tree in Thread_Keys_information.
*/
RBTree_Node Lookup_node;
/**
* @brief The POSIX key identifier used as the tree key.
*/
pthread_key_t key;
/**
* @brief The corresponding thread.
*/
Thread_Control *thread;
/**
* @brief The thread specific POSIX key value.
*/
void *value;
} POSIX_Keys_Key_value_pair;
/**
* @brief The data structure used to manage a POSIX key.
*/
typedef struct {
/** This field is the Object control structure. */
Objects_Control Object;
/** This field is the data destructor. */
void (*destructor) (void *);
/**
* @brief Key value pairs of this key.
*/
Chain_Control Key_value_pairs;
} POSIX_Keys_Control;
/** @} */
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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