Struct rel_slab_allocator::SlabAllocator

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pub struct SlabAllocator<'a, U, B: Basis = DefaultBasis> { /* private fields */ }

Implementations

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impl<'a, U, B: Basis> SlabAllocator<'a, U, B>

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pub fn try_new_in(bytes: Slot<'a, [u8]>, unique: U) -> Result<Self, SlabError>

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pub fn try_from_bytes(
bytes: Slot<'a, [u8]>,
unique: U
) -> Result<Self, SlabError>

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pub fn shrink_to_fit(&self) -> usize

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pub fn deposit<T>(&self, val: OwnedVal<T, Self>) -> Option<OwnedVal<T, Self>>where
T: DropRaw + Portable,
Self: Singleton,

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pub unsafe fn withdraw_unchecked<T>(&self) -> Option<OwnedVal<T, Self>>where
T: DropRaw + Portable,

Withdraws a previously-deposited root object.

Safety

The previously-deposited root object must be compatible with type T.

Trait Implementations

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impl<U, B: Basis> Allocator for SlabAllocator<'_, U, B>

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fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>

Attempts to allocate a block of memory. Read more

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unsafe fn deallocate(&self, _ptr: NonNull<u8>, _layout: Layout)

Deallocates the memory referenced by ptr. Read more

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fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>

Behaves like allocate, but also ensures that the returned memory is zero-initialized. Read more

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unsafe fn grow(
 &self,
 ptr: NonNull<u8>,
 old_layout: Layout,
 new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

Attempts to extend the memory block. Read more

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unsafe fn grow_zeroed(
 &self,
 ptr: NonNull<u8>,
 old_layout: Layout,
 new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

Behaves like grow, but also ensures that the new contents are set to zero before being returned. Read more

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unsafe fn grow_in_place(
 &self,
 ptr: NonNull<u8>,
 old_layout: Layout,
 new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

Behaves like grow but returns Err if the memory block cannot be grown in-place. Read more

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unsafe fn grow_zeroed_in_place(
 &self,
 ptr: NonNull<u8>,
 old_layout: Layout,
 new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

Behaves like grow_zeroed but returns Err if the memory block cannot be grown in-place. Read more

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unsafe fn shrink(
 &self,
 ptr: NonNull<u8>,
 old_layout: Layout,
 new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

Attempts to shrink the memory block. Read more

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unsafe fn shrink_in_place(
 &self,
 ptr: NonNull<u8>,
 old_layout: Layout,
 new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

Behaves like shrink but returns Err if the memory block cannot be shrunk in-place. Read more

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impl<U, B: Basis> Clone for SlabAllocator<'_, U, B>

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fn clone(&self) -> Self

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<'a, U, B1, B2> Emplace<RelSlabAllocator<'a, U, B1, B2>, SlabRegion> for SlabAllocator<'a, U, B1>where
 U: Unique,
 B1: Basis,
 B2: Basis,

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fn emplaced_meta(
&self
) -> <RelSlabAllocator<'a, U, B1, B2> as Pointee>::Metadata

Returns the metadata of the T that this emplaces. Read more

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unsafe fn emplace_unsized_unchecked(
self,
out: In<Slot<'_, RelSlabAllocator<'a, U, B1, B2>>, SlabRegion>
)

Emplaces a value into a given slot within some memory region. Read more

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impl<'a, U: Unique, B: Basis> RegionalAllocator for SlabAllocator<'a, U, B>

type Region = SlabRegion

The region type for this allocator.

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impl<U, B: Basis> Copy for SlabAllocator<'_, U, B>

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impl<'a, U, B1, B2> RelAllocator<RelSlabAllocator<'a, U, B1, B2>> for SlabAllocator<'a, U, B1>where
 U: Unique,
 B1: Basis,
 B2: Basis,

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impl<'a, U, B: Basis> Singleton for SlabAllocator<'a, U, B>where
Ref<'a, SlabControl<U, B>>: Singleton,

Auto Trait Implementations

impl<'a, U, B = DefaultBasis> !RefUnwindSafe for SlabAllocator<'a, U, B>

impl<'a, U, B = DefaultBasis> !Send for SlabAllocator<'a, U, B>

impl<'a, U, B = DefaultBasis> !Sync for SlabAllocator<'a, U, B>

impl<'a, U, B> Unpin for SlabAllocator<'a, U, B>

impl<'a, U, B = DefaultBasis> !UnwindSafe for SlabAllocator<'a, U, B>

Blanket Implementations

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impl<T> Any for Twhere
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, B> BasisPointee for Twhere
B: Basis,

type BasisMetadata = ()

The metadata associated with the pointee in the chosen basis.

type FromNativeError = Infallible

An error occurred while converting metadata from the native representation. Read more

type ToNativeError = Infallible

An error occurred while converting metadata to the native representation. Read more

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fn from_native_metadata(
<T as Pointee>::Metadata
) -> Result<<T as BasisPointee>::BasisMetadata, <T as BasisPointee>::FromNativeError>

Returns the pointer metadata in B corresponding to the given native pointer metadata, or Err if the conversion failed. Read more

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fn to_native_metadata(
<T as BasisPointee>::BasisMetadata
) -> Result<<T as Pointee>::Metadata, <T as BasisPointee>::ToNativeError>

Returns the native pointer metadata corresponding to the given pointer metadata in B, or Err if the conversion failed. Read more

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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<E, T, R> EmplaceExt<T, R> for Ewhere
 E: Emplace<T, R>,
 T: DropRaw + Pointee + ?Sized,
 R: Region,

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fn emplace_unsized(self, out: In<Slot<'_, T>, R>)

Emplaces a value into a given slot within some memory region. Read more

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fn emplace(self, out: In<Slot<'_, T>, R>)

Emplaces a sized value into a given slot within some memory region. Read more

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unsafe fn emplace_mut_unsized(self, out: In<Slot<'_, T>, R>) -> In<Mut<'_, T>, R>

Emplaces a value into a given slot within some memory region and returns a mutable reference. Read more

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fn emplace_mut(self, out: In<Slot<'_, T>, R>) -> In<Mut<'_, T>, R>

Emplaces a sized value into a given slot within some memory region and returns a mutable reference. Read more

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unsafe fn emplace_val_unsized(self, out: In<Slot<'_, T>, R>) -> In<Val<'_, T>, R>

Emplaces a value into a given slot within some memory region and returns an initialized value. Read more

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fn emplace_val(self, out: In<Slot<'_, T>, R>) -> In<Val<'_, T>, R>

Emplaces a sized value into a given slot within some memory region and returns an initialized value. Read more

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impl<E, A> EmplaceIn<A> for Ewhere
A: RegionalAllocator,

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fn emplace_in<T>(self, alloc: A) -> OwnedVal<T, A>where
 T: DropRaw + Pointee + ?Sized,
 <T as Pointee>::Metadata: Metadata<T>,
 E: Emplace<T, <A as RegionalAllocator>::Region>,

Emplaces a value into a new OwnedVal allocated from the given allocator and returns it. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

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> Pointee for T

type Metadata = ()

The type for metadata in pointers and references to Self.

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impl<T> ToOwned for Twhere
T: Clone,

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 for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct rel_slab_allocator::SlabAllocator

Implementations

impl<'a, U, B: Basis> SlabAllocator<'a, U, B>

pub fn try_new_in(bytes: Slot<'a, [u8]>, unique: U) -> Result<Self, SlabError>

pub fn try_from_bytes( bytes: Slot<'a, [u8]>, unique: U) -> Result<Self, SlabError>

pub fn shrink_to_fit(&self) -> usize

pub fn deposit<T>(&self, val: OwnedVal<T, Self>) -> Option<OwnedVal<T, Self>>where T: DropRaw + Portable, Self: Singleton,

pub unsafe fn withdraw_unchecked<T>(&self) -> Option<OwnedVal<T, Self>>where T: DropRaw + Portable,

Safety

Trait Implementations

impl<U, B: Basis> Allocator for SlabAllocator<'_, U, B>

fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn deallocate(&self, _ptr: NonNull<u8>, _layout: Layout)

fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow_zeroed( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow_in_place( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow_zeroed_in_place( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn shrink( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn shrink_in_place( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

impl<U, B: Basis> Clone for SlabAllocator<'_, U, B>

fn clone(&self) -> Self

fn clone_from(&mut self, source: &Self)

impl<'a, U, B1, B2> Emplace<RelSlabAllocator<'a, U, B1, B2>, SlabRegion<U>> for SlabAllocator<'a, U, B1>where U: Unique, B1: Basis, B2: Basis,

fn emplaced_meta( &self) -> <RelSlabAllocator<'a, U, B1, B2> as Pointee>::Metadata

unsafe fn emplace_unsized_unchecked( self, out: In<Slot<'_, RelSlabAllocator<'a, U, B1, B2>>, SlabRegion<U>>)

impl<'a, U: Unique, B: Basis> RegionalAllocator for SlabAllocator<'a, U, B>

type Region = SlabRegion<U>

impl<U, B: Basis> Copy for SlabAllocator<'_, U, B>

impl<'a, U, B1, B2> RelAllocator<RelSlabAllocator<'a, U, B1, B2>> for SlabAllocator<'a, U, B1>where U: Unique, B1: Basis, B2: Basis,

impl<'a, U, B: Basis> Singleton for SlabAllocator<'a, U, B>where Ref<'a, SlabControl<U, B>>: Singleton,

Auto Trait Implementations

impl<'a, U, B = DefaultBasis> !RefUnwindSafe for SlabAllocator<'a, U, B>

impl<'a, U, B = DefaultBasis> !Send for SlabAllocator<'a, U, B>

impl<'a, U, B = DefaultBasis> !Sync for SlabAllocator<'a, U, B>

impl<'a, U, B> Unpin for SlabAllocator<'a, U, B>

impl<'a, U, B = DefaultBasis> !UnwindSafe for SlabAllocator<'a, U, B>

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T, B> BasisPointee<B> for Twhere B: Basis,

type BasisMetadata = ()

type FromNativeError = Infallible

type ToNativeError = Infallible

fn from_native_metadata( <T as Pointee>::Metadata) -> Result<<T as BasisPointee<B>>::BasisMetadata, <T as BasisPointee<B>>::FromNativeError>

fn to_native_metadata( <T as BasisPointee<B>>::BasisMetadata) -> Result<<T as Pointee>::Metadata, <T as BasisPointee<B>>::ToNativeError>

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

impl<E, T, R> EmplaceExt<T, R> for Ewhere E: Emplace<T, R>, T: DropRaw + Pointee + ?Sized, R: Region,

fn emplace_unsized(self, out: In<Slot<'_, T>, R>)

fn emplace(self, out: In<Slot<'_, T>, R>)

unsafe fn emplace_mut_unsized(self, out: In<Slot<'_, T>, R>) -> In<Mut<'_, T>, R>

fn emplace_mut(self, out: In<Slot<'_, T>, R>) -> In<Mut<'_, T>, R>

unsafe fn emplace_val_unsized(self, out: In<Slot<'_, T>, R>) -> In<Val<'_, T>, R>

fn emplace_val(self, out: In<Slot<'_, T>, R>) -> In<Val<'_, T>, R>

impl<E, A> EmplaceIn<A> for Ewhere A: RegionalAllocator,

fn emplace_in<T>(self, alloc: A) -> OwnedVal<T, A>where T: DropRaw + Pointee + ?Sized, <T as Pointee>::Metadata: Metadata<T>, E: Emplace<T, <A as RegionalAllocator>::Region>,

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> Pointee for T

type Metadata = ()

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

pub fn try_from_bytes(
bytes: Slot<'a, [u8]>,
unique: U
) -> Result<Self, SlabError>

pub fn deposit<T>(&self, val: OwnedVal<T, Self>) -> Option<OwnedVal<T, Self>>where
T: DropRaw + Portable,
Self: Singleton,

pub unsafe fn withdraw_unchecked<T>(&self) -> Option<OwnedVal<T, Self>>where
T: DropRaw + Portable,

unsafe fn grow(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow_zeroed(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow_in_place(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow_zeroed_in_place(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

unsafe fn shrink(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

unsafe fn shrink_in_place(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8]>, AllocError>

impl<'a, U, B1, B2> Emplace<RelSlabAllocator<'a, U, B1, B2>, SlabRegion<U>> for SlabAllocator<'a, U, B1>where
U: Unique,
B1: Basis,
B2: Basis,

fn emplaced_meta(
&self
) -> <RelSlabAllocator<'a, U, B1, B2> as Pointee>::Metadata

unsafe fn emplace_unsized_unchecked(
self,
out: In<Slot<'_, RelSlabAllocator<'a, U, B1, B2>>, SlabRegion<U>>
)

impl<'a, U, B1, B2> RelAllocator<RelSlabAllocator<'a, U, B1, B2>> for SlabAllocator<'a, U, B1>where
U: Unique,
B1: Basis,
B2: Basis,

impl<'a, U, B: Basis> Singleton for SlabAllocator<'a, U, B>where
Ref<'a, SlabControl<U, B>>: Singleton,

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

impl<T, B> BasisPointee<B> for Twhere
B: Basis,

fn from_native_metadata(
<T as Pointee>::Metadata
) -> Result<<T as BasisPointee<B>>::BasisMetadata, <T as BasisPointee<B>>::FromNativeError>

fn to_native_metadata(
<T as BasisPointee<B>>::BasisMetadata
) -> Result<<T as Pointee>::Metadata, <T as BasisPointee<B>>::ToNativeError>

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<E, T, R> EmplaceExt<T, R> for Ewhere
E: Emplace<T, R>,
T: DropRaw + Pointee + ?Sized,
R: Region,

impl<E, A> EmplaceIn<A> for Ewhere
A: RegionalAllocator,

fn emplace_in<T>(self, alloc: A) -> OwnedVal<T, A>where
T: DropRaw + Pointee + ?Sized,
<T as Pointee>::Metadata: Metadata<T>,
E: Emplace<T, <A as RegionalAllocator>::Region>,

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

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,