lv_cache_entry.h
Functions
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uint32_t lv_cache_entry_get_size(const uint32_t node_size)
Get the size of a cache entry.
- Parameters:
node_size -- The size of the node in the cache.
- Returns:
The size of the cache entry.
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int32_t lv_cache_entry_get_ref(lv_cache_entry_t *entry)
Get the reference count of a cache entry.
- Parameters:
entry -- The cache entry to get the reference count of.
- Returns:
The reference count of the cache entry.
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uint32_t lv_cache_entry_get_node_size(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.
- Parameters:
entry -- The cache entry to get the node size of.
- Returns:
The node size of the cache entry.
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bool lv_cache_entry_is_invalid(lv_cache_entry_t *entry)
Check if a cache entry is invalid.
- Parameters:
entry -- The cache entry to check.
- Returns:
True: the cache entry is invalid. False: the cache entry is valid.
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void *lv_cache_entry_get_data(lv_cache_entry_t *entry)
Get the data of a cache entry.
- Parameters:
entry -- The cache entry to get the data of.
- Returns:
The pointer to the data of the cache entry.
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const lv_cache_t *lv_cache_entry_get_cache(const lv_cache_entry_t *entry)
Get the cache instance of a cache entry.
- Parameters:
entry -- The cache entry to get the cache instance of.
- Returns:
The pointer to the cache instance of the cache entry.
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lv_cache_entry_t *lv_cache_entry_get_entry(void *data, const uint32_t node_size)
Get the cache entry of a data. The data should be allocated by the cache instance.
- Parameters:
data -- The data to get the cache entry of.
node_size -- The size of the node in the cache.
- Returns:
The pointer to the cache entry of the data.
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lv_cache_entry_t *lv_cache_entry_alloc(const uint32_t node_size, const lv_cache_t *cache)
Allocate a cache entry.
- Parameters:
node_size -- The size of the node in the cache.
cache -- The cache instance to allocate the cache entry from.
- Returns:
The pointer to the allocated cache entry.
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void lv_cache_entry_init(lv_cache_entry_t *entry, const lv_cache_t *cache, const uint32_t node_size)
Initialize a cache entry.
- Parameters:
entry -- The cache entry to initialize.
cache -- The cache instance to allocate the cache entry from.
node_size -- The size of the node in the cache.
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void lv_cache_entry_delete(lv_cache_entry_t *entry)
Deallocate a cache entry. And the data of the cache entry will be freed.
- Parameters:
entry -- The cache entry to deallocate.