Trait DowngradableWriteApi

pub trait DowngradableWriteApi: GuardedTarget {
    type DowngradableWriteGuard<'a>: DowngradableWriteGuard<Target = Self::Target>
       where Self: 'a;

    // Required method
    fn downgradable_write(&mut self) -> Self::DowngradableWriteGuard<'_>;
}

Provides a mutable (but downgradable) part of the RwApi interface.

Example

See the RwApi docs for usage examples.

Required Associated Types

type DowngradableWriteGuard<'a>: DowngradableWriteGuard<Target = Self::Target> where Self: 'a

Self::downgradable_write return type.

Required Methods

fn downgradable_write(&mut self) -> Self::DowngradableWriteGuard<'_>

WriteApi::write analogue, which return type can be downgraded.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T> DowngradableWriteApi for &RwLock<T>

type DowngradableWriteGuard<'a> = RwLockWriteGuard<'a, RawRwLock, T> where Self: 'a

fn downgradable_write(&mut self) -> RwLockWriteGuard<'_, T>

impl<T> DowngradableWriteApi for &mut RwLock<T>

type DowngradableWriteGuard<'a> = &'a mut T where Self: 'a

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

impl<T> DowngradableWriteApi for RwLock<T>

type DowngradableWriteGuard<'a> = &'a mut T where Self: 'a

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

Implementors

impl<'a, T: ?Sized> DowngradableWriteApi for &mut RwApiWrapper<'a, T>

type DowngradableWriteGuard<'i> = &'i mut &'a mut T where Self: 'i

impl<'a, T: ?Sized> DowngradableWriteApi for RwApiWrapper<'a, T>

type DowngradableWriteGuard<'i> = &'i mut &'a mut T where Self: 'i

impl<T> DowngradableWriteApi for &mut RwApiWrapperOwned<T>

type DowngradableWriteGuard<'i> = &'i mut T where Self: 'i

impl<T> DowngradableWriteApi for RwApiWrapperOwned<T>

type DowngradableWriteGuard<'i> = &'i mut T where Self: 'i