Struct freqfs::FileLock [−][src]
pub struct FileLock<FE> { /* fields omitted */ }
Expand description
A clone-able wrapper over a tokio::sync::RwLock
on a file container.
Implementations
Lock this file for reading.
Lock this file for writing.
Back up this file’s contents to the filesystem.
This method acquires a write lock on the file contents, so it can deadlock if there is already a lock on the file contents.
Pass true
to error out if there is already a lock on the file contents.
Trait Implementations
Auto Trait Implementations
impl<FE> !RefUnwindSafe for FileLock<FE>
impl<FE> !UnwindSafe for FileLock<FE>
Blanket Implementations
Mutably borrows from an owned value. Read more
Returns true
if self
can be cast into the target type T
.
Test if value
can be cast into Self
.
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,
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
.
Test if self
can be cast into 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,
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
.