Struct VMMemory
pub struct VMMemory(pub Box<dyn LinearMemory>);
Expand description
Represents linear memory that can be either owned or shared
Tuple Fields§
§0: Box<dyn LinearMemory>
Implementations§
§impl VMMemory
impl VMMemory
pub fn new(
memory: &MemoryType,
style: &MemoryStyle,
) -> Result<VMMemory, MemoryError>
pub fn new( memory: &MemoryType, style: &MemoryStyle, ) -> Result<VMMemory, MemoryError>
Creates a new linear memory instance of the correct type with specified minimum and maximum number of wasm pages.
This creates a Memory
with owned metadata: this can be used to create a memory
that will be imported into Wasm modules.
pub fn get_runtime_size(&self) -> u32
pub fn get_runtime_size(&self) -> u32
Returns the number of pages in the allocated memory block
pub unsafe fn from_definition(
memory: &MemoryType,
style: &MemoryStyle,
vm_memory_location: NonNull<VMMemoryDefinition>,
) -> Result<VMMemory, MemoryError>
pub unsafe fn from_definition( memory: &MemoryType, style: &MemoryStyle, vm_memory_location: NonNull<VMMemoryDefinition>, ) -> Result<VMMemory, MemoryError>
Create a new linear memory instance with specified minimum and maximum number of wasm pages.
This creates a Memory
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.
pub fn from_custom<IntoVMMemory>(memory: IntoVMMemory) -> VMMemory
pub fn from_custom<IntoVMMemory>(memory: IntoVMMemory) -> VMMemory
Creates VMMemory from a custom implementation - the following into implementations are natively supported
- VMOwnedMemory -> VMMemory
- Box<dyn LinearMemory + ’static> -> VMMemory
pub fn copy(&mut self) -> Result<Box<dyn LinearMemory>, MemoryError>
pub fn copy(&mut self) -> Result<Box<dyn LinearMemory>, MemoryError>
Copies this memory to a new memory
Trait Implementations§
§impl From<Box<dyn LinearMemory>> for VMMemory
impl From<Box<dyn LinearMemory>> for VMMemory
§fn from(mem: Box<dyn LinearMemory>) -> VMMemory
fn from(mem: Box<dyn LinearMemory>) -> VMMemory
§impl From<VMOwnedMemory> for VMMemory
impl From<VMOwnedMemory> for VMMemory
§fn from(mem: VMOwnedMemory) -> VMMemory
fn from(mem: VMOwnedMemory) -> VMMemory
§fn from(mem: VMSharedMemory) -> VMMemory
fn from(mem: VMSharedMemory) -> VMMemory
§impl LinearMemory for VMMemory
impl LinearMemory for VMMemory
§fn ty(&self) -> MemoryType
fn ty(&self) -> MemoryType
Returns the type for this memory.
§fn grow(&mut self, delta: Pages) -> Result<Pages, MemoryError>
fn grow(&mut 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.
§fn grow_at_least(&mut self, min_size: u64) -> Result<(), MemoryError>
fn grow_at_least(&mut self, min_size: u64) -> Result<(), MemoryError>
Grows the memory to at least a minimum size. If the memory is already big enough for the min size then this function does nothing
§fn reset(&mut self) -> Result<(), MemoryError>
fn reset(&mut self) -> Result<(), MemoryError>
Resets the memory down to a zero size
§fn style(&self) -> MemoryStyle
fn style(&self) -> MemoryStyle
Returns the memory style for this memory.
§fn vmmemory(&self) -> NonNull<VMMemoryDefinition>
fn vmmemory(&self) -> NonNull<VMMemoryDefinition>
Return a VMMemoryDefinition
for exposing the memory to compiled wasm code.
§fn try_clone(&self) -> Result<Box<dyn LinearMemory>, MemoryError>
fn try_clone(&self) -> Result<Box<dyn LinearMemory>, MemoryError>
Attempts to clone this memory (if its clonable)
§fn copy(&mut self) -> Result<Box<dyn LinearMemory>, MemoryError>
fn copy(&mut self) -> Result<Box<dyn LinearMemory>, MemoryError>
Copies this memory to a new memory
§fn do_notify(&mut self, dst: NotifyLocation, count: u32) -> u32
fn do_notify(&mut self, dst: NotifyLocation, count: u32) -> u32
Notify waiters from the wait list. Return the number of waiters notified
§fn do_wait(
&mut self,
dst: NotifyLocation,
timeout: Option<Duration>,
) -> Result<u32, WaiterError>
fn do_wait( &mut self, dst: NotifyLocation, timeout: Option<Duration>, ) -> Result<u32, WaiterError>
§fn thread_conditions(&self) -> Option<&ThreadConditions>
fn thread_conditions(&self) -> Option<&ThreadConditions>
§impl StoreObject for VMMemory
impl StoreObject for VMMemory
§fn list(ctx: &StoreObjects) -> &Vec<VMMemory>
fn list(ctx: &StoreObjects) -> &Vec<VMMemory>
§fn list_mut(ctx: &mut StoreObjects) -> &mut Vec<VMMemory>
fn list_mut(ctx: &mut StoreObjects) -> &mut Vec<VMMemory>
Auto Trait Implementations§
impl Freeze for VMMemory
impl !RefUnwindSafe for VMMemory
impl Send for VMMemory
impl !Sync for VMMemory
impl Unpin for VMMemory
impl !UnwindSafe for VMMemory
Blanket Implementations§
§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
§type ArchivedMetadata = ()
type ArchivedMetadata = ()
§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more