Enum wasmer_vm::MemoryStyle

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pub enum MemoryStyle {
    Dynamic {
        offset_guard_size: u64,
    },
    Static {
        bound: Pages,
        offset_guard_size: u64,
    },
}

Expand description

Implementation styles for WebAssembly linear memory.

Variants

`Dynamic`

Fields

offset_guard_size: u64

Our chosen offset-guard size.

It represents the size in bytes of extra guard pages after the end to optimize loads and stores with constant offsets.

The actual memory can be resized and moved.

`Static`

Fields

bound: Pages

The number of mapped and unmapped pages.

offset_guard_size: u64

Our chosen offset-guard size.

It represents the size in bytes of extra guard pages after the end to optimize loads and stores with constant offsets.

Address space is allocated up front.

Implementations

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impl MemoryStyle

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pub fn offset_guard_size(&self) -> u64

Returns the offset-guard size

Trait Implementations

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impl Archive for MemoryStyle where
u64: Archive,
Pages: Archive,

type Archived = ArchivedMemoryStyle

The archived representation of this type. Read more

type Resolver = MemoryStyleResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type. Read more

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unsafe fn resolve(
 &self,
 pos: usize,
 resolver: <MemoryStyle as Archive>::Resolver,
 out: *mut <MemoryStyle as Archive>::Archived
)

Creates the archived version of this value at the given position and writes it to the given output. Read more

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impl Clone for MemoryStyle

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fn clone(&self) -> MemoryStyle

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl Debug for MemoryStyle

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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<'de> Deserialize<'de> for MemoryStyle

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fn deserialize<D>(
deserializer: D
) -> Result<MemoryStyle, <D as Deserializer<'de>>::Error> where
__D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

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impl<D> Deserialize<MemoryStyle, D> for <MemoryStyle as Archive>::Archived where
 D: Fallible + ?Sized,
 u64: Archive,
 <u64 as Archive>::Archived: Deserialize<u64, D>,
 Pages: Archive,
 <Pages as Archive>::Archived: Deserialize<Pages, __D>,

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fn deserialize(
&self,
deserializer: &mut D
) -> Result<MemoryStyle, <D as Fallible>::Error>

Deserializes using the given deserializer

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impl Hash for MemoryStyle

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

Feeds this value into the given Hasher. Read more

1.3.0 · source

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

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impl MemoryUsage for MemoryStyle

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fn size_of_val(&self, visited: &mut dyn MemoryUsageTracker) -> usize

Returns the size of the referenced value in bytes. Read more

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impl PartialEq<MemoryStyle> for MemoryStyle

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fn eq(&self, other: &MemoryStyle) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &MemoryStyle) -> bool

This method tests for !=.

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impl Serialize for MemoryStyle

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fn serialize<S>(
 &self,
 serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
 S: Serializer,

Serialize this value into the given Serde serializer. Read more

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impl<S> Serialize<S> for MemoryStyle where
 S: Fallible + ?Sized,
 u64: Serialize<S>,
 Pages: Serialize<__S>,

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fn serialize(
&self,
serializer: &mut S
) -> Result<<MemoryStyle as Archive>::Resolver, <S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type. Read more

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impl Eq for MemoryStyle

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impl StructuralEq for MemoryStyle

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impl StructuralPartialEq for MemoryStyle

Auto Trait Implementations

impl RefUnwindSafe for MemoryStyle

impl Send for MemoryStyle

impl Sync for MemoryStyle

impl Unpin for MemoryStyle

impl UnwindSafe for MemoryStyle

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

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.

fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.

impl<T> ArchiveUnsized for T where
T: Archive,

type Archived = <T as Archive>::Archived

The archived counterpart of this type. Unlike Archive, it may be unsized. Read more

type MetadataResolver = ()

The resolver for the metadata of this type. Read more

unsafe fn resolve_metadata(
 &self,
 usize,
 <T as ArchiveUnsized>::MetadataResolver,
 *mut <<T as ArchiveUnsized>::Archived as ArchivePointee>::ArchivedMetadata
)

Creates the archived version of the metadata for this value at the given position and writes it to the given output. Read more

unsafe fn resolve_unsized(
 &self,
 from: usize,
 to: usize,
 resolver: Self::MetadataResolver,
 out: *mut RelPtr<Self::Archived, <isize as Archive>::Archived>
)

Resolves a relative pointer to this value with the given from and to and writes it to the given output. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> CallHasher for T where
T: Hash + ?Sized,

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where
H: Hash + ?Sized,
B: BuildHasher,

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where
 W: DeserializeWith<F, T, D>,
 D: Fallible + ?Sized,
 F: ?Sized,

fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer

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impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

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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 T where
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.

impl<T> Pointee for T

type Metadata = ()

The type for metadata in pointers and references to Self.

impl<T, S> SerializeUnsized<S> for T where
T: Serialize<S>,
S: Serializer + ?Sized,

fn serialize_unsized(
&self,
serializer: &mut S
) -> Result<usize, <S as Fallible>::Error>

Writes the object and returns the position of the archived type.

fn serialize_metadata(&self, &mut S) -> Result<(), <S as Fallible>::Error>

Serializes the metadata for the given type.

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impl<T> ToOwned for T where
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 T where
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 T where
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.

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impl<T> Upcastable for T where
T: 'static + Any + Send + Sync,

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fn upcast_any_ref(&self) -> &(dyn Any + 'static)

upcast ref

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fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)

upcast mut ref

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fn upcast_any_box(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

upcast boxed dyn

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Enum wasmer_vm::MemoryStyle

Variants

Dynamic

Fields

Static

Fields

Implementations

impl MemoryStyle

pub fn offset_guard_size(&self) -> u64

Trait Implementations

impl Archive for MemoryStyle where u64: Archive, Pages: Archive,

type Archived = ArchivedMemoryStyle

type Resolver = MemoryStyleResolver

unsafe fn resolve( &self, pos: usize, resolver: <MemoryStyle as Archive>::Resolver, out: *mut <MemoryStyle as Archive>::Archived)

impl Clone for MemoryStyle

fn clone(&self) -> MemoryStyle

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

impl Debug for MemoryStyle

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

impl<'de> Deserialize<'de> for MemoryStyle

fn deserialize<__D>( __deserializer: __D) -> Result<MemoryStyle, <__D as Deserializer<'de>>::Error> where __D: Deserializer<'de>,

impl<__D> Deserialize<MemoryStyle, __D> for <MemoryStyle as Archive>::Archived where __D: Fallible + ?Sized, u64: Archive, <u64 as Archive>::Archived: Deserialize<u64, __D>, Pages: Archive, <Pages as Archive>::Archived: Deserialize<Pages, __D>,

fn deserialize( &self, deserializer: &mut __D) -> Result<MemoryStyle, <__D as Fallible>::Error>

impl Hash for MemoryStyle

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

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,

impl MemoryUsage for MemoryStyle

fn size_of_val(&self, visited: &mut dyn MemoryUsageTracker) -> usize

impl PartialEq<MemoryStyle> for MemoryStyle

fn eq(&self, other: &MemoryStyle) -> bool

fn ne(&self, other: &MemoryStyle) -> bool

impl Serialize for MemoryStyle

fn serialize<__S>( &self, __serializer: __S) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where __S: Serializer,

impl<__S> Serialize<__S> for MemoryStyle where __S: Fallible + ?Sized, u64: Serialize<__S>, Pages: Serialize<__S>,

fn serialize( &self, serializer: &mut __S) -> Result<<MemoryStyle as Archive>::Resolver, <__S as Fallible>::Error>

impl Eq for MemoryStyle

impl StructuralEq for MemoryStyle

impl StructuralPartialEq for MemoryStyle

Auto Trait Implementations

impl RefUnwindSafe for MemoryStyle

impl Send for MemoryStyle

impl Sync for MemoryStyle

impl Unpin for MemoryStyle

impl UnwindSafe for MemoryStyle

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

fn pointer_metadata( &<T as ArchivePointee>::ArchivedMetadata) -> <T as Pointee>::Metadata

impl<T> ArchiveUnsized for T where T: Archive,

type Archived = <T as Archive>::Archived

type MetadataResolver = ()

unsafe fn resolve_metadata( &self, usize, <T as ArchiveUnsized>::MetadataResolver, *mut <<T as ArchiveUnsized>::Archived as ArchivePointee>::ArchivedMetadata)

unsafe fn resolve_unsized( &self, from: usize, to: usize, resolver: Self::MetadataResolver, out: *mut RelPtr<Self::Archived, <isize as Archive>::Archived>)

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

fn borrow(&self) -> &T

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

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

impl<T> CallHasher for T where T: Hash + ?Sized,

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where H: Hash + ?Sized, B: BuildHasher,

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,

fn deserialize( &self, deserializer: &mut D) -> Result<With<T, W>, <D as Fallible>::Error>

impl<Q, K> Equivalent<K> for Q where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> Pointee for T

type Metadata = ()

impl<T, S> SerializeUnsized<S> for T where T: Serialize<S>, S: Serializer + ?Sized,

fn serialize_unsized( &self, serializer: &mut S) -> Result<usize, <S as Fallible>::Error>

fn serialize_metadata(&self, &mut S) -> Result<(), <S as Fallible>::Error>

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

`Dynamic`

`Static`

impl Archive for MemoryStyle where
u64: Archive,
Pages: Archive,

unsafe fn resolve(
&self,
pos: usize,
resolver: <MemoryStyle as Archive>::Resolver,
out: *mut <MemoryStyle as Archive>::Archived
)

fn deserialize<D>(
deserializer: D
) -> Result<MemoryStyle, <D as Deserializer<'de>>::Error> where
__D: Deserializer<'de>,

impl<D> Deserialize<MemoryStyle, D> for <MemoryStyle as Archive>::Archived where
D: Fallible + ?Sized,
u64: Archive,
<u64 as Archive>::Archived: Deserialize<u64, D>,
Pages: Archive,
<Pages as Archive>::Archived: Deserialize<Pages, __D>,

fn deserialize(
&self,
deserializer: &mut D
) -> Result<MemoryStyle, <D as Fallible>::Error>

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

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

fn serialize<S>(
&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
S: Serializer,

impl<S> Serialize<S> for MemoryStyle where
S: Fallible + ?Sized,
u64: Serialize<S>,
Pages: Serialize<__S>,

fn serialize(
&self,
serializer: &mut S
) -> Result<<MemoryStyle as Archive>::Resolver, <S as Fallible>::Error>

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

fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata

impl<T> ArchiveUnsized for T where
T: Archive,

unsafe fn resolve_metadata(
&self,
usize,
<T as ArchiveUnsized>::MetadataResolver,
*mut <<T as ArchiveUnsized>::Archived as ArchivePointee>::ArchivedMetadata
)

unsafe fn resolve_unsized(
&self,
from: usize,
to: usize,
resolver: Self::MetadataResolver,
out: *mut RelPtr<Self::Archived, <isize as Archive>::Archived>
)

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

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

impl<T> CallHasher for T where
T: Hash + ?Sized,

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where
H: Hash + ?Sized,
B: BuildHasher,

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,

fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>

impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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

impl<T, S> SerializeUnsized<S> for T where
T: Serialize<S>,
S: Serializer + ?Sized,

fn serialize_unsized(
&self,
serializer: &mut S
) -> Result<usize, <S as Fallible>::Error>

impl<T> ToOwned for T where
T: Clone,

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

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

impl<T> Upcastable for T where
T: 'static + Any + Send + Sync,

impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,