Struct freqfs::DirLock

impl<FE: FileLoad> DirLock<FE>

pub async fn read(&self) -> DirReadGuard<FE>

Lock this directory for reading.

pub fn try_read(&self) -> Result<DirReadGuard<FE>, Error>

Lock this directory for reading synchronously, if possible.

pub async fn write(&self) -> DirWriteGuard<FE>

Lock this directory for writing.

pub fn try_write(&self) -> Result<DirWriteGuard<FE>, Error>

Lock this directory for writing synchronously, if possible.

pub fn sync(
&self
) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + '_>>

Synchronize the contents of this directory with the filesystem.

This will create new subdirectories and delete entries from the filesystem, but will NOT synchronize the contents of any child directories or files.

pub fn trim(&self) -> Pin<Box<dyn Future<Output = Result<usize, Error>> + '_>>

Recursively delete empty entries in this Dir. Returns the number of entries in this Dir. Call this function immediately after loading the cache to avoid the risk of deadlock.

Trait Implementations§

impl<FE> Clone for DirLock<FE>

fn clone(&self) -> Self

Returns a copy of the value. Read more

1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

impl<FE> !UnwindSafe for DirLock<FE>

Blanket Implementations§

impl<T> Any for Twhere
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<F, T> CastFrom<F> for Twhere
T: From<F>,

fn cast_from(f: F) -> T

Cast an instance of T into an instance of Self.

impl<T, F> CastInto<F> for Twhere
F: CastFrom<T>,

fn cast_into(self) -> F

Cast an instance of Self into an instance of T.

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into for Twhere
U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<F> Match for F

fn matches<T>(&self) -> boolwhere
T: TryCastFrom<Self>,

Returns true if self can be cast into the target type T.

impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<F, T> TryCastFrom<F> for Twhere
T: CastFrom<F>,

fn can_cast_from(_: &F) -> bool

Test if value can be cast into Self.

fn opt_cast_from(f: F) -> Option<T>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err>where
OnErr: FnOnce(&T) -> Err,

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl<F, T> TryCastInto<T> for Fwhere
T: TryCastFrom<F>,

fn can_cast_into(&self) -> bool

Test if self can be cast into T.

fn opt_cast_into(self) -> Option<T>

Returns Some(T) if self can be cast into T, otherwise None.

fn try_cast_into<Err, OnErr>(self, on_err: OnErr) -> Result<T, Err>where
OnErr: FnOnce(&Self) -> Err,

Returns Ok(T) if self can be cast into T, otherwise calls on_err.

impl<T, U> TryFrom for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

impl<T, U> TryInto for Twhere
U: TryFrom<T>,