lv_cache_entry.h

API reference for lv_cache_entry.h

Summary

Functions

Get the size of a cache entry.

uint32_t lv_cache_entry_get_size(const uint32_t node_size)

Name	Type	Description
`node_size`	`const uint32_t`	The size of the node in the cache.

Returns: uint32_t — The size of the cache entry.

Get the reference count of a cache entry.

int32_t lv_cache_entry_get_ref(lv_cache_entry_t *entry)

Name	Type	Description
`entry`	`lv_cache_entry_t *`	The cache entry to get the reference count of.

Returns: int32_t — The reference count of the cache entry.

Get the node size of a cache entry. Which is the same size with lv_cache_entry_get_size()'s node_size parameter.

uint32_t lv_cache_entry_get_node_size(lv_cache_entry_t *entry)

Name	Type	Description
`entry`	`lv_cache_entry_t *`	The cache entry to get the node size of.

Returns: uint32_t — The node size of the cache entry.

Get the data of a cache entry.

void * lv_cache_entry_get_data(lv_cache_entry_t *entry)

Name	Type	Description
`entry`	`lv_cache_entry_t *`	The cache entry to get the data of.

Returns: void * — The pointer to the data of the cache entry.

Get the cache entry of a data. The data should be allocated by the cache instance.

lv_cache_entry_t * lv_cache_entry_get_entry(void *data, const uint32_t node_size)

Name	Type	Description
`data`	`void *`	The data to get the cache entry of.
`node_size`	`const uint32_t`	The size of the node in the cache.

Returns: lv_cache_entry_t * — The pointer to the cache entry of the data.

Check if a cache entry is invalid.

bool lv_cache_entry_is_invalid(lv_cache_entry_t *entry)

Name	Type	Description
`entry`	`lv_cache_entry_t *`	The cache entry to check.

Returns: bool — True: the cache entry is invalid. False: the cache entry is valid.

Indirect dependencies