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#ifndef PERSISTENCE_CLIENT_LIBRARY_TREE_HELPER_H
#define PERSISTENCE_CLIENT_LIBRARY_TREE_HELPER_H
/******************************************************************************
* Project Persistency
* (c) copyright 2015
* Company XS Embedded GmbH
*****************************************************************************/
/******************************************************************************
* This Source Code Form is subject to the terms of the
* Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed
* with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
******************************************************************************/
/**
* @file persistence_client_library_tree_helper.h
* @ingroup Persistence client library
* @author Ingo Huerner
* @brief Header of persistence client library tree helper functions
* @see
*/
#include<stdio.h>
#include<stdlib.h>
#include "persistence_client_library_handle.h"
#include "rbtree.h"
/// tree to store key handle information
extern jsw_rbtree_t *gKeyHandleTree;
/// tree to store file handle information
extern jsw_rbtree_t *gFileHandleTree;
/// tree to store OSS file handle information
extern jsw_rbtree_t *gOssFileHandleTree;
/// key handle data union definition
typedef union KeyHandleData_u_
{
/// key handle data definition
PersistenceKeyHandle_s keyHandle;
/// key handle data payload
char payload[sizeof(struct _PersistenceKeyHandle_s)];
} KeyHandleData_u;
/// type definition of a key tree item
typedef struct _KeyHandleTreeItem_s
{
/// key handle key
int key;
/// key handle data
KeyHandleData_u value;
} KeyHandleTreeItem_s;
/// file handle data union definition
typedef union FileHandleData_u_
{
/// file handle data definition
PersistenceFileHandle_s fileHandle;
/// file handle data payload
char payload[sizeof(struct _PersistenceFileHandle_s)];
} FileHandleData_u;
/// type definition of a file tree item
typedef struct _FileHandleTreeItem_s
{
/// file handle key
int key;
/// file handle data
FileHandleData_u value;
} FileHandleTreeItem_s;
/**
* @brief Compare function for file handle tree item
*
* @param p1 pointer to the first item to compare
* @param p2 pointer to the second item to compare
*
* @return 0 if key is equal; -1 if p1 < p2; 1 if p1 > p2
*/
int fh_key_val_cmp(const void *p1, const void *p2 );
/**
* @brief Duplicate function for file handle tree item
*
* @param p the pointer of the item to duplicate
*
* @return pointer to the duplicated item, on failure NULL
*/
void* fh_key_val_dup(void *p);
/**
* @brief Release function for file handle tree item
*
* @param p pointer tp the item to release
*/
void fh_key_val_rel(void *p );
/**
* @brief Compare function for key handle tree item
*
* @param p1 pointer to the first item to compare
* @param p2 pointer to the second item to compare
*
* @return 0 if key is equal; -1 if p1 < p2; 1 if p1 > p2
*/
int kh_key_val_cmp(const void *p1, const void *p2 );
/**
* @brief Duplicate function for key handle tree item
*
* @param p the pointer of the item to duplicate
*
* @return pointer to the duplicated item, on failure NULL
*/
void* kh_key_val_dup(void *p);
/**
* @brief Release function for key handle tree item
*
* @param p pointer tp the item to release
*/
void kh_key_val_rel(void *p );
#endif /* PERSISTENCE_CLIENT_LIBRARY_TREE_HELPER_H */
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