netstack3_base::sync

Struct RwLock

pub struct RwLock<T>(/* private fields */);
Expand description

A sync::RwLock assuming lock poisoning will never occur.

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impl<T> RwLock<T>

pub fn new(t: T) -> RwLock<T>

Creates a new instance of an RwLock<T> which is unlocked.

pub fn read(&self) -> LockGuard<'_, RwLock<T>, RwLockReadGuard<'_, T>>

Locks this rwlock with shared read access, blocking the current thread until it can be acquired.

See sync::RwLock::read for more details.

§Panics

This method may panic if the calling thread already holds the read or write lock.

pub fn write(&self) -> LockGuard<'_, RwLock<T>, RwLockWriteGuard<'_, T>>

Locks this rwlock with exclusive write access, blocking the current thread until it can be acquired.

See sync::RwLock::write for more details.

§Panics

This method may panic if the calling thread already holds the read or write lock.

pub fn into_inner(self) -> T

Consumes this rwlock, returning the underlying data.

pub fn get_mut(&mut self) -> &mut T

Returns a mutable reference to the underlying data.

Since this call borrows the RwLock mutably, no actual locking needs to take place. See sync::RwLock::get_mut for more details.

Trait Implementations§

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impl<T> Debug for RwLock<T>
where T: Debug,

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

Formats the value using the given formatter. Read more
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impl<T> Default for RwLock<T>
where T: Default,

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fn default() -> RwLock<T>

Returns the “default value” for a type. Read more
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impl<T, I> GenericOverIp<I> for RwLock<T>
where I: Ip, T: GenericOverIp<I>,

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type Type = RwLock<<T as GenericOverIp<I>>::Type>

The type of Self when its IP-generic parameter is replaced with the type NewIp.
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impl<T> ReadWriteLock<T> for RwLock<T>
where T: 'static,

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type ReadGuard<'l> = LockGuard<'l, RwLock<T>, RwLockReadGuard<'l, T>>

The guard type returned when locking for reads (i.e. shared).
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type WriteGuard<'l> = LockGuard<'l, RwLock<T>, RwLockWriteGuard<'l, T>>

The guard type returned when locking for writes (i.e. exclusive).
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fn read_lock(&self) -> <RwLock<T> as ReadWriteLock<T>>::ReadGuard<'_>

Locks this lock for reading.
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fn write_lock(&self) -> <RwLock<T> as ReadWriteLock<T>>::WriteGuard<'_>

Locks this lock for writing.

Auto Trait Implementations§

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impl<T> !Freeze for RwLock<T>

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impl<T> RefUnwindSafe for RwLock<T>

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impl<T> Send for RwLock<T>
where T: Send,

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impl<T> Sync for RwLock<T>
where T: Send + Sync,

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impl<T> Unpin for RwLock<T>
where T: Unpin,

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impl<T> UnwindSafe for RwLock<T>

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<O, BC> BuildableCoreContext<BC> for O
where O: Default,

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type Builder = ()

The builder type that can build this core context.
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fn build(_bindings_ctx: &mut BC, _: ()) -> O

Consumes this builder and returns the context.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<CC, BC, Meta> RecvFrameContext<Meta, BC> for CC
where Meta: ReceivableFrameMeta<CC, BC>,

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fn receive_frame<B>(&mut self, bindings_ctx: &mut BC, metadata: Meta, frame: B)
where B: BufferMut + Debug,

Receive a frame. Read more
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impl<CC, BC, Meta> SendFrameContext<BC, Meta> for CC
where Meta: SendableFrameMeta<CC, BC>,

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fn send_frame<S>( &mut self, bindings_ctx: &mut BC, metadata: Meta, frame: S, ) -> Result<(), ErrorAndSerializer<SendFrameErrorReason, S>>
where S: Serializer, <S as Serializer>::Buffer: BufferMut,

Send a frame. Read more
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impl<Id, CC, BC> TimerHandler<BC, Id> for CC
where BC: TimerBindingsTypes, Id: HandleableTimer<CC, BC>,

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fn handle_timer( &mut self, bindings_ctx: &mut BC, dispatch: Id, timer: <BC as TimerBindingsTypes>::UniqueTimerId, )

Handle a timer firing. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<L, T> UnlockedAccess<L> for T
where L: UnlockedAccessMarkerFor<T>,

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type Data = <L as UnlockedAccessMarkerFor<T>>::Data

The type of state being accessed.
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type Guard<'l> = &'l <L as UnlockedAccessMarkerFor<T>>::Data where T: 'l

A guard providing read access to the data.
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fn access(&self) -> <T as UnlockedAccess<L>>::Guard<'_>

How to access the state.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<B, A> LockBefore<B> for A
where B: LockAfter<A>,