PosixShmProviderBackendBuddy

zenoh_shm::api::protocol_implementations::posix::posix_shm_provider_backend_buddy

Struct PosixShmProviderBackendBuddy 

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pub struct PosixShmProviderBackendBuddy { /* private fields */ }
Expand description

A buddy_system_allocator backend based on POSIX shared memory.

This API has been marked as unstable: it works as advertised, but it may be changed in a future release.
buddy_system_allocator is the fastest allocator ever. The weak side is it's low memry efficiency and higher fragmentation as opposed to talc (which is treated as the universal default for zenoh SHM)

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impl PosixShmProviderBackendBuddy

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pub fn builder<Layout>( layout: Layout, ) -> PosixShmProviderBackendBuddyBuilder<Layout>

Get the builder to construct a new instance

This API has been marked as unstable: it works as advertised, but it may be changed in a future release.

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impl ShmProviderBackend for PosixShmProviderBackendBuddy

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fn alloc(&self, layout: &MemoryLayout) -> ChunkAllocResult

Allocate the chunk of desired size. Read more
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fn free(&self, chunk: &ChunkDescriptor)

Deallocate the chunk. Read more
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fn defragment(&self) -> usize

Defragment the memory. Read more
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fn available(&self) -> usize

Bytes available for use Read more
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fn layout_for(&self, layout: MemoryLayout) -> Result<MemoryLayout, ZLayoutError>

Check and calculate suitable layout for layout. Read more
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impl WithProtocolID for PosixShmProviderBackendBuddy

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fn id(&self) -> ProtocolID

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impl<Source> AccessAs for Source

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fn ref_as<T>(&self) -> <Source as IGuardRef<T>>::Guard<'_>
where Source: IGuardRef<T>, T: ?Sized,

Provides immutable access to a type as if it were its ABI-unstable equivalent.
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fn mut_as<T>(&mut self) -> <Source as IGuardMut<T>>::GuardMut<'_>
where Source: IGuardMut<T>, T: ?Sized,

Provides mutable access to a type as if it were its ABI-unstable equivalent.
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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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, As> IGuardMut<As> for T
where T: Into<As>, As: Into<T>,

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type GuardMut<'a> = MutAs<'a, T, As> where T: 'a

The type of the guard which will clean up the temporary after applying its changes to the original.
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fn guard_mut_inner(&mut self) -> <T as IGuardMut<As>>::GuardMut<'_>

Construct the temporary and guard it through a mutable reference.
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impl<T, As> IGuardRef<As> for T
where T: Into<As>, As: Into<T>,

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type Guard<'a> = RefAs<'a, T, As> where T: 'a

The type of the guard which will clean up the temporary.
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fn guard_ref_inner(&self) -> <T as IGuardRef<As>>::Guard<'_>

Construct the temporary and guard it through an immutable reference.
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impl<T> Includes<End> for T

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type Output = End

The result
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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<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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more