Type Alias lv_cache_class_t 

pub type lv_cache_class_t = _lv_cache_class_t;

Cache class struct for building custom cache classes

Examples:

• lv_cache_class_lru_rb_count for LRU-based cache with count-based eviction policy.
• lv_cache_class_lru_rb_size for LRU-based cache with size-based eviction policy.

Aliased Type

#[repr(C)]
pub struct lv_cache_class_t {
    pub alloc_cb: Option<unsafe extern "C" fn() -> *mut c_void>,
    pub init_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t) -> bool>,
    pub destroy_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *mut c_void)>,
    pub get_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *const c_void, *mut c_void) -> *mut _lv_cache_entry_t>,
    pub add_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *const c_void, *mut c_void) -> *mut _lv_cache_entry_t>,
    pub remove_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *mut _lv_cache_entry_t, *mut c_void)>,
    pub drop_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *const c_void, *mut c_void)>,
    pub drop_all_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *mut c_void)>,
    pub get_victim_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *mut c_void) -> *mut _lv_cache_entry_t>,
    pub reserve_cond_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *const c_void, usize, *mut c_void) -> u32>,
    pub iter_create_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t) -> *mut _lv_iter_t>,
}

Fields

alloc_cb: Option<unsafe extern "C" fn() -> *mut c_void>

< The allocation function for cache entries

init_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t) -> bool>

< The initialization function for cache entries

destroy_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *mut c_void)>

< The destruction function for cache entries

get_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *const c_void, *mut c_void) -> *mut _lv_cache_entry_t>

< The get function for cache entries

add_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *const c_void, *mut c_void) -> *mut _lv_cache_entry_t>

< The add function for cache entries

remove_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *mut _lv_cache_entry_t, *mut c_void)>

< The remove function for cache entries

drop_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *const c_void, *mut c_void)>

< The drop function for cache entries

drop_all_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *mut c_void)>

< The drop all function for cache entries

get_victim_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *mut c_void) -> *mut _lv_cache_entry_t>

< The get victim function for cache entries

reserve_cond_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t, *const c_void, usize, *mut c_void) -> u32>

< The reserve condition function for cache entries

iter_create_cb: Option<unsafe extern "C" fn(*mut _lv_cache_t) -> *mut _lv_iter_t>

< The iterator creation function for cache entries