Trait UpgradableReadApi

pub trait UpgradableReadApi: GuardedTarget {
    type UpgradableReadGuard<'a>: UpgradableReadGuard<Target = Self::Target>
       where Self: 'a;

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

Provides a constant (but upgradable) part of the RwApi interface.

Example

See the RwApi docs for usage examples.

Required Associated Types

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

Self::upgradable_read return type.

Required Methods

fn upgradable_read(&mut self) -> Self::UpgradableReadGuard<'_>

Generalizes RwLock::upgradable_read.

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> UpgradableReadApi for &RwLock<T>

type UpgradableReadGuard<'a> = RwLockUpgradableReadGuard<'a, RawRwLock, T> where Self: 'a

fn upgradable_read(&mut self) -> RwLockUpgradableReadGuard<'_, T>

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

type UpgradableReadGuard<'a> = RwLockUpgradableReadGuard<'a, RawRwLock, T> where Self: 'a

fn upgradable_read(&mut self) -> RwLockUpgradableReadGuard<'_, T>

impl<T> UpgradableReadApi for RwLock<T>

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

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

Implementors

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

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

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

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

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

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

impl<T> UpgradableReadApi for RwApiWrapperOwned<T>

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