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/**
* @file lv_cache_entry.h
*
*/
#ifndef LV_CACHE_ENTRY_H
#define LV_CACHE_ENTRY_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../../osal/lv_os.h"
#include "../lv_types.h"
#include "lv_cache_private.h"
#include <stdbool.h>
#include <stdlib.h>
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Get the size of a cache entry.
* @param node_size The size of the node in the cache.
* @return The size of the cache entry.
*/
uint32_t lv_cache_entry_get_size(const uint32_t node_size);
/**
* Get the reference count of a cache entry.
* @param entry The cache entry to get the reference count of.
* @return The reference count of the cache entry.
*/
int32_t lv_cache_entry_get_ref(lv_cache_entry_t * entry);
/**
* Get the node size of a cache entry. Which is the same size with @lv_cache_entry_get_size's node_size parameter.
* @param entry The cache entry to get the node size of.
* @return The node size of the cache entry.
*/
uint32_t lv_cache_entry_get_node_size(lv_cache_entry_t * entry);
/**
* Check if a cache entry is invalid.
* @param entry The cache entry to check.
* @return True: the cache entry is invalid. False: the cache entry is valid.
*/
bool lv_cache_entry_is_invalid(lv_cache_entry_t * entry);
/**
* Get the data of a cache entry.
* @param entry The cache entry to get the data of.
* @return The pointer to the data of the cache entry.
*/
void * lv_cache_entry_get_data(lv_cache_entry_t * entry);
/**
* Get the cache instance of a cache entry.
* @param entry The cache entry to get the cache instance of.
* @return The pointer to the cache instance of the cache entry.
*/
const lv_cache_t * lv_cache_entry_get_cache(const lv_cache_entry_t * entry);
/**
* Get the cache entry of a data. The data should be allocated by the cache instance.
* @param data The data to get the cache entry of.
* @param node_size The size of the node in the cache.
* @return The pointer to the cache entry of the data.
*/
lv_cache_entry_t * lv_cache_entry_get_entry(void * data, const uint32_t node_size);
/**
* Allocate a cache entry.
* @param node_size The size of the node in the cache.
* @param cache The cache instance to allocate the cache entry from.
* @return The pointer to the allocated cache entry.
*/
lv_cache_entry_t * lv_cache_entry_alloc(const uint32_t node_size, const lv_cache_t * cache);
/**
* Initialize a cache entry.
* @param entry The cache entry to initialize.
* @param cache The cache instance to allocate the cache entry from.
* @param node_size The size of the node in the cache.
*/
void lv_cache_entry_init(lv_cache_entry_t * entry, const lv_cache_t * cache, const uint32_t node_size);
/**
* Deallocate a cache entry. And the data of the cache entry will be freed.
* @param entry The cache entry to deallocate.
*/
void lv_cache_entry_delete(lv_cache_entry_t * entry);
/*************************
* GLOBAL VARIABLES
*************************/
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_CACHE_ENTRY_H*/
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