Struct wasmer_vm::LinearMemory

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pub struct LinearMemory { /* private fields */ }

Expand description

A linear memory instance.

Implementations

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impl LinearMemory

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pub fn new(
memory: &MemoryType,
style: &MemoryStyle
) -> Result<Self, MemoryError>

Create a new linear memory instance with specified minimum and maximum number of wasm pages.

This creates a LinearMemory with owned metadata: this can be used to create a memory that will be imported into Wasm modules.

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pub unsafe fn from_definition(
 memory: &MemoryType,
 style: &MemoryStyle,
 vm_memory_location: NonNull<VMMemoryDefinition>
) -> Result<Self, MemoryError>

Create a new linear memory instance with specified minimum and maximum number of wasm pages.

This creates a LinearMemory with metadata owned by a VM, pointed to by vm_memory_location: this can be used to create a local memory.

Safety

vm_memory_location must point to a valid location in VM memory.

Trait Implementations

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impl Debug for LinearMemory

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

Formats the value using the given formatter. Read more

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impl Memory for LinearMemory

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fn ty(&self) -> MemoryType

Returns the type for this memory.

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fn style(&self) -> &MemoryStyle

Returns the memory style for this memory.

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fn size(&self) -> Pages

Returns the number of allocated wasm pages.

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fn grow(&self, delta: Pages) -> Result<Pages, MemoryError>

Grow memory by the specified amount of wasm pages.

Returns None if memory can’t be grown by the specified amount of wasm pages.

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fn vmmemory(&self) -> NonNull<VMMemoryDefinition>

Return a VMMemoryDefinition for exposing the memory to compiled wasm code.

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impl MemoryUsage for LinearMemory

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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 Send for LinearMemory

We must implement this because of VMMemoryDefinitionOwnership::VMOwned. This is correct because synchronization of memory accesses is controlled by the VM.

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impl Sync for LinearMemory

This is correct because all internal mutability is protected by a mutex.

Auto Trait Implementations

impl !RefUnwindSafe for LinearMemory

impl Unpin for LinearMemory

impl UnwindSafe for LinearMemory

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.

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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<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<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.

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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

Struct wasmer_vm::LinearMemory

Implementations

impl LinearMemory

pub fn new( memory: &MemoryType, style: &MemoryStyle) -> Result<Self, MemoryError>

pub unsafe fn from_definition( memory: &MemoryType, style: &MemoryStyle, vm_memory_location: NonNull<VMMemoryDefinition>) -> Result<Self, MemoryError>

Safety

Trait Implementations

impl Debug for LinearMemory

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

impl Memory for LinearMemory

fn ty(&self) -> MemoryType

fn style(&self) -> &MemoryStyle

fn size(&self) -> Pages

fn grow(&self, delta: Pages) -> Result<Pages, MemoryError>

fn vmmemory(&self) -> NonNull<VMMemoryDefinition>

impl MemoryUsage for LinearMemory

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

impl Send for LinearMemory

impl Sync for LinearMemory

Auto Trait Implementations

impl !RefUnwindSafe for LinearMemory

impl Unpin for LinearMemory

impl UnwindSafe for LinearMemory

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

type Error = Infallible

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

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

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

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

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

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

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

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

pub fn new(
memory: &MemoryType,
style: &MemoryStyle
) -> Result<Self, MemoryError>

pub unsafe fn from_definition(
memory: &MemoryType,
style: &MemoryStyle,
vm_memory_location: NonNull<VMMemoryDefinition>
) -> Result<Self, MemoryError>

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

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

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

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

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

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,