Struct sp_runtime::offchain::storage_lock::StorageLockGuard[−][src]

pub struct StorageLockGuard<'a, 'b, L: Lockable> { /* fields omitted */ }
[−]

RAII style guard for a lock.

Implementations

impl<'a, 'b, L: Lockable> StorageLockGuard<'a, 'b, L>[src][−]

pub fn forget(self)[src][−]

Consume the guard but do not unlock the underlying lock.

Can be used to implement a grace period after doing some heavy computations and sending a transaction to be included on-chain. By forgetting the lock, it will stay locked until its expiration deadline is reached while the off-chain worker can already exit.

pub fn extend_lock(&mut self) -> Result<<L as Lockable>::Deadline, ()>[src][−]

Extend the lock by guard deadline if it already exists.

i.e. large sets of items for which it is hard to calculate a meaning full conservative deadline which does not block for a very long time on node termination.

Trait Implementations

impl<'a, 'b, L: Lockable> Drop for StorageLockGuard<'a, 'b, L>[src][+]

Auto Trait Implementations

impl<'a, 'b, L> RefUnwindSafe for StorageLockGuard<'a, 'b, L> where
    L: RefUnwindSafe, 

impl<'a, 'b, L> Send for StorageLockGuard<'a, 'b, L> where
    L: Send, 

impl<'a, 'b, L> Sync for StorageLockGuard<'a, 'b, L> where
    L: Sync, 

impl<'a, 'b, L> Unpin for StorageLockGuard<'a, 'b, L> where
    'a: 'b, 

impl<'a, 'b, L> !UnwindSafe for StorageLockGuard<'a, 'b, L>

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src][+]

impl<T> Borrow<T> for T where
    T: ?Sized, [src][+]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src][+]

impl<T> CheckedConversion for T[src][+]

impl<T> From<T> for T[src][+]

impl<T> Instrument for T[src][+]

impl<T, U> Into<U> for T where
    U: From<T>, [src][+]

impl<T, Outer> IsWrappedBy<Outer> for T where
    T: From<Outer>,
    Outer: AsRef<T> + AsMut<T> + From<T>, [src][+]

pub fn from_ref(outer: &Outer) -> &T[src][−]

Get a reference to the inner from the outer.

pub fn from_mut(outer: &mut Outer) -> &mut T[src][−]

Get a mutable reference to the inner from the outer.

impl<T> MaybeRefUnwindSafe for T where
    T: RefUnwindSafe, [src]

impl<T> Same<T> for T[src]

type Output = T

Should always be Self

impl<T> SaturatedConversion for T[src][+]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src][+]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src][+]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<S, T> UncheckedInto<T> for S where
    T: UncheckedFrom<S>, [src][+]

impl<T, S> UniqueSaturatedInto<T> for S where
    T: Bounded,
    S: TryInto<T>, [src][+]

impl<V, T> VZip<V> for T where
    V: MultiLane<T>, [src][+]