Struct TableCache

pub struct TableCache { /* private fields */ }

Implementations

impl TableCache

pub fn new(dbname: &String, options: &Options, entries: i32) -> Self

pub fn find_table( &mut self, file_number: u64, file_size: u64, handle: *mut *mut CacheHandle, ) -> Status

pub fn new_iterator( &mut self, options: &ReadOptions, file_number: u64, file_size: u64, tableptr: *mut *mut Table, ) -> *mut LevelDBIterator

| Return an iterator for the specified file | number (the corresponding file length must be | exactly “file_size” bytes). If “tableptr” is | non-null, also sets “*tableptr” to point to | the Table object underlying the returned | iterator, or to nullptr if no Table object | underlies the returned iterator. The | returned “*tableptr” object is owned by the | cache and should not be deleted, and is valid | for as long as the returned iterator is live.

pub fn get( &mut self, options: &ReadOptions, file_number: u64, file_size: u64, k: &Slice, arg: *mut c_void, handle_result: fn(_0: *mut c_void, _1: &Slice, _2: &Slice) -> c_void, ) -> Status

| If a seek to internal key “k” in specified | file finds an entry, call | (*handle_result)(arg, found_key, | found_value).

pub fn evict(&mut self, file_number: u64)

| Evict any entry for the specified file | number |

Trait Implementations

impl Drop for TableCache

fn drop(&mut self)

Executes the destructor for this type.