Trait UpgradableReadGuard

pub trait UpgradableReadGuard: Deref {
    type UpgradeResult: DerefMut<Target = Self::Target>;
    type UpgradeToDowngradableResult: DowngradableWriteGuard<DowngradeToUpgradableResult = Self, Target = Self::Target>;

    // Required methods
    fn upgrade(self) -> Self::UpgradeResult;
    fn upgrade_to_downgradable(self) -> Self::UpgradeToDowngradableResult;
}

Provides an interface for upgrading upgradable read guards.

Example

See the GuardedTarget docs for implementation examples.

Required Associated Types

type UpgradeResult: DerefMut<Target = Self::Target>

Self::upgrade return type.

type UpgradeToDowngradableResult: DowngradableWriteGuard<DowngradeToUpgradableResult = Self, Target = Self::Target>

Self::upgrade_to_downgradable return type.

Required Methods

fn upgrade(self) -> Self::UpgradeResult

Generalizes RwLockUpgradableReadGuard::upgrade.

fn upgrade_to_downgradable(self) -> Self::UpgradeToDowngradableResult

Self::upgrade analogue, which return type can be downgraded.

Implementations on Foreign Types

impl<'a, T> UpgradableReadGuard for RwLockUpgradableReadGuard<'a, T>

type UpgradeResult = RwLockWriteGuard<'a, RawRwLock, T>

type UpgradeToDowngradableResult = RwLockWriteGuard<'a, RawRwLock, T>

fn upgrade(self) -> RwLockWriteGuard<'a, T>

fn upgrade_to_downgradable(self) -> RwLockWriteGuard<'a, T>

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

type UpgradeResult = &'a mut T

type UpgradeToDowngradableResult = &'a mut T

fn upgrade(self) -> Self

fn upgrade_to_downgradable(self) -> Self

Implementors