Struct kdevice::cache::CacheGuard

pub struct CacheGuard<'a, T: Cache>(_);

Guard representing the unique ownership of a cache entry.

Implementations

impl<'a, T: Cache> CacheGuard<'a, T>

pub fn is_dirty(&self) -> bool

Check if the buffer is dirty.

pub fn key(&self) -> T::Key

Return the key of this cache entry.

pub fn nlocks(&self) -> usize

Return the key of this cache entry.

pub async fn unlock(self, flush: bool) -> Result<()>

Release the cache entry.

If flush is true, the data will be flushed to disk if modified. Otherwise, it won’t be flushed until dropped from in-memory cache. If error, just release the lock and donot flush any data to disk.

If flush is false, this operation will always succeed.

Trait Implementations

impl<T: Cache> Debug for CacheGuard<'_, T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Cache> Deref for CacheGuard<'_, T>

type Target = T::Value

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T: Cache> DerefMut for CacheGuard<'_, T>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<T: Cache> Drop for CacheGuard<'_, T>

fn drop(&mut self)

Executes the destructor for this type.