Struct MappedSharedMutexWriteGuard

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

A write guard to a sub-borrow of an original SharedMutexWriteGuard.

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

Implementations

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

pub fn map<U: ?Sized, F>( self, action: F, ) -> MappedSharedMutexWriteGuard<'mutex, U>

where F: FnOnce(&mut T) -> &mut U,

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

pub fn option_map<U: ?Sized, F>( self, action: F, ) -> Option<MappedSharedMutexWriteGuard<'mutex, U>>

where F: FnOnce(&mut T) -> Option<&mut U>,

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

pub fn result_map<U: ?Sized, E, F>( self, action: F, ) -> Result<MappedSharedMutexWriteGuard<'mutex, U>, (Self, E)>

where F: FnOnce(&mut T) -> Result<&mut U, E>,

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

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

pub fn recover<U: ?Sized>( self, mutex: &'mutex SharedMutex<U>, ) -> Result<SharedMutexWriteGuard<'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 + Debug> Debug for MappedSharedMutexWriteGuard<'mutex, T>

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

Formats the value using the given formatter.

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

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<'mutex, T: ?Sized> DerefMut for MappedSharedMutexWriteGuard<'mutex, T>

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

Mutably dereferences the value.

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

fn drop(&mut self)

Executes the destructor for this type.