Struct shared_mutex::MappedSharedMutexReadGuard

pub struct MappedSharedMutexReadGuard<'mutex, T: ?Sized + 'mutex> { /* fields omitted */ }

A read guard to a sub-borrow of an original SharedMutexReadGuard.

Unlike SharedMutexReadGuard, it cannot be used to wait on a Condvar.

Methods

impl<'mutex, T: ?Sized> MappedSharedMutexReadGuard<'mutex, T>

fn map<U: ?Sized, F>(self, action: F) -> MappedSharedMutexReadGuard<'mutex, U> where
    F: FnOnce(&T) -> &U, 

Transform this guard into a sub-borrow of the original data.

fn option_map<U: ?Sized, F>(
    self,
    action: F
) -> Option<MappedSharedMutexReadGuard<'mutex, U>> where
    F: FnOnce(&T) -> Option<&U>, 

Conditionally transform this guard into a sub-borrow of the original data.

fn result_map<U: ?Sized, E, F>(
    self,
    action: F
) -> Result<MappedSharedMutexReadGuard<'mutex, U>, (Self, E)> where
    F: FnOnce(&T) -> Result<&U, E>, 

Conditionally transform this guard into a sub-borrow of the original data.

If the transformation operation is aborted, returns the original guard.

fn recover<U: ?Sized>(
    self,
    mutex: &'mutex SharedMutex<U>
) -> Result<SharedMutexReadGuard<'mutex, U>, Self>

Recover the original guard for waiting.

Takes the original mutex to recover the original type and data. If the passed mutex is not the same object as the original mutex, returns Err.

Trait Implementations

impl<'mutex, T: ?Sized> Deref for MappedSharedMutexReadGuard<'mutex, T>

type Target = T

The resulting type after dereferencing

fn deref(&self) -> &T

The method called to dereference a value

impl<'mutex, T: ?Sized> Drop for MappedSharedMutexReadGuard<'mutex, T>

fn drop(&mut self)

A method called when the value goes out of scope.

impl<'mutex, T: ?Sized + Debug> Debug for MappedSharedMutexReadGuard<'mutex, T>

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

Formats the value using the given formatter.