Enum wasmer_vm::MemoryStyle

source ·

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

source

impl MemoryStyle

source

pub fn offset_guard_size(&self) -> u64

Returns the offset-guard size

Trait Implementations

source

impl Archive for MemoryStylewhere
u64: Archive,
Pages: Archive,

type Archived = MemoryStyle

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

source

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

source

impl Clone for MemoryStyle

source

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

source

impl Debug for MemoryStyle

source

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

Formats the value using the given formatter. Read more

source

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

source

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

Deserializes using the given deserializer

source

impl Hash for MemoryStyle

source

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,
Self: Sized,

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

source

impl PartialEq<MemoryStyle> for MemoryStyle

source

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

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

1.0.0 · source

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. Read more

source

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

source

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

source

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

source

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

source

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 Twhere
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

source

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

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

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

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64where
H: Hash + ?Sized,
B: BuildHasher,

impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere
 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

source

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

source

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

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

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

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.

impl<T> Pointee for T

type Metadata = ()

The type for metadata in pointers and references to Self.

impl<T, S> SerializeUnsized<S> for Twhere
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.

source

impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

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

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

source

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.

source

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.

Enum wasmer_vm::MemoryStyle

Variants

Dynamic

Fields

Static

Fields

Implementations

impl MemoryStyle

pub fn offset_guard_size(&self) -> u64

Trait Implementations

impl Archive for MemoryStylewhere u64: Archive, Pages: Archive,

type Archived = MemoryStyle

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<__D> Deserialize<MemoryStyle, __D> for <MemoryStyle as Archive>::Archivedwhere __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, Self: Sized,

impl PartialEq<MemoryStyle> for MemoryStyle

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

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

impl<__S> Serialize<__S> for MemoryStylewhere __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 Copy for MemoryStyle

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 Twhere 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 Twhere 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 Twhere T: ?Sized,

fn borrow(&self) -> &T

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

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

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

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64where H: Hash + ?Sized, B: BuildHasher,

impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere 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 Qwhere 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 Twhere U: From<T>,

fn into(self) -> U

impl<T> Pointee for T

type Metadata = ()

impl<T, S> SerializeUnsized<S> for Twhere 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 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>

`Dynamic`

`Static`

impl Archive for MemoryStylewhere
u64: Archive,
Pages: Archive,

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

impl<D> Deserialize<MemoryStyle, D> for <MemoryStyle as Archive>::Archivedwhere
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,
Self: Sized,

impl<S> Serialize<S> for MemoryStylewhere
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 Twhere
T: 'static + ?Sized,

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

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

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

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

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64where
H: Hash + ?Sized,
B: BuildHasher,

impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere
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 Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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

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

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

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>,