Struct netstack3_core::sync::StrongRc

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pub struct StrongRc<T> { /* private fields */ }
Expand description

A strongly-held reference.

Similar to an alloc::sync::Arc but holding a Strong acts as a witness to the live-ness of the underlying data. That is, holding a Strong implies that the underlying data has not yet been destroyed.

Note that Strong’s implementation of Hash and PartialEq operate on the pointer itself and not the underlying data.

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impl<T> Strong<T>

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pub fn downgrade(_: &Strong<T>) -> Weak<T>

Returns a weak reference pointing to the same underlying data.

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pub fn debug_id(&self) -> impl Debug

Returns core::fmt::Debug implementation that is stable and unique for the data held behind this Strong.

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pub fn marked_for_destruction(_: &Strong<T>) -> bool

Returns true if the inner value has since been marked for destruction.

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pub fn weak_ptr_eq(_: &Strong<T>, _: &Weak<T>) -> bool

Returns true if the two pointers point to the same allocation.

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pub fn ptr_eq(_: &Strong<T>, _: &Strong<T>) -> bool

Returns true if the two pointers point to the same allocation.

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pub fn ptr_cmp(_: &Strong<T>, _: &Strong<T>) -> Ordering

Compares the two pointers.

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pub fn debug_references(this: &Strong<T>) -> DebugReferences<T>

Creates a DebugReferences instance.

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impl<T> AsRef<T> for Strong<T>

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fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.
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impl<I, D, BT> Borrow<Strong<ReferenceState<I, D, Icmp<BT>>>> for IcmpSocketId<I, D, BT>

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fn borrow(&self) -> &Strong<ReferenceState<I, D, Icmp<BT>>>

Immutably borrows from an owned value. Read more
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impl<I, D, BT> Borrow<Strong<ReferenceState<I, D, Udp<BT>>>> for UdpSocketId<I, D, BT>

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fn borrow(&self) -> &Strong<ReferenceState<I, D, Udp<BT>>>

Immutably borrows from an owned value. Read more
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impl<T> Clone for Strong<T>

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fn clone(&self) -> Strong<T>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T> Debug for Strong<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> Deref for Strong<T>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &T

Dereferences the value.
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impl<T> Drop for Strong<T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<I, D, BT> From<Strong<ReferenceState<I, D, Icmp<BT>>>> for IcmpSocketId<I, D, BT>

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fn from(value: Strong<ReferenceState<I, D, Icmp<BT>>>) -> IcmpSocketId<I, D, BT>

Converts to this type from the input type.
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impl<I, D, BT> From<Strong<ReferenceState<I, D, Udp<BT>>>> for UdpSocketId<I, D, BT>

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fn from(value: Strong<ReferenceState<I, D, Udp<BT>>>) -> UdpSocketId<I, D, BT>

Converts to this type from the input type.
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impl<T> Hash for Strong<T>

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fn hash<H>(&self, state: &mut H)
where H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<BT> IpAddressId<Ipv4Addr> for Strong<Ipv4AddressEntry<BT>>

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type Weak = Weak<Ipv4AddressEntry<BT>>

The weak version of this ID.
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fn downgrade( &self, ) -> <Strong<Ipv4AddressEntry<BT>> as IpAddressId<Ipv4Addr>>::Weak

Downgrades this ID to a weak reference.
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fn addr(&self) -> IpDeviceAddr<Ipv4Addr>

Returns the address this ID represents.
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fn addr_sub( &self, ) -> AddrSubnet<Ipv4Addr, NonMulticastAddr<NonMappedAddr<SpecifiedAddr<Ipv4Addr>>>>

Returns the address subnet this ID represents.
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impl<BT> IpAddressId<Ipv6Addr> for Strong<Ipv6AddressEntry<BT>>

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type Weak = Weak<Ipv6AddressEntry<BT>>

The weak version of this ID.
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fn downgrade( &self, ) -> <Strong<Ipv6AddressEntry<BT>> as IpAddressId<Ipv6Addr>>::Weak

Downgrades this ID to a weak reference.
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fn addr(&self) -> IpDeviceAddr<Ipv6Addr>

Returns the address this ID represents.
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fn addr_sub(&self) -> AddrSubnet<Ipv6Addr, NonMappedAddr<UnicastAddr<Ipv6Addr>>>

Returns the address subnet this ID represents.
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impl<T> PartialEq for Strong<T>

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fn eq(&self, other: &Strong<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T> Eq for Strong<T>

Auto Trait Implementations§

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impl<T> Freeze for Strong<T>

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impl<T> RefUnwindSafe for Strong<T>
where T: RefUnwindSafe,

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

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

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impl<T> Unpin for Strong<T>

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impl<T> UnwindSafe for Strong<T>
where T: RefUnwindSafe,

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<T> CloneToUninit for T
where T: Clone,

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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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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<T> Same for T

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type Output = T

Should always be Self
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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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

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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<N> UnreachableExt for N
where N: AsRef<Infallible>,

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fn uninstantiable_unreachable<T>(&self) -> T

A method that can’t be called. Read more
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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>,