Struct wasmer::vm::VMSharedMemory
pub struct VMSharedMemory {
mmap: Rc<RwLock<WasmMmap>, Global>,
config: VMMemoryConfig,
conditions: ThreadConditions,
}
Expand description
A shared linear memory instance.
Fields§
§mmap: Rc<RwLock<WasmMmap>, Global>
§config: VMMemoryConfig
§conditions: ThreadConditions
Implementations§
pub fn new(
memory: &MemoryType,
style: &MemoryStyle
) -> Result<VMSharedMemory, MemoryError>
pub fn new( memory: &MemoryType, style: &MemoryStyle ) -> Result<VMSharedMemory, MemoryError>
Create a new linear memory instance 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 unsafe fn from_definition(
memory: &MemoryType,
style: &MemoryStyle,
vm_memory_location: NonNull<VMMemoryDefinition>
) -> Result<VMSharedMemory, MemoryError>
pub unsafe fn from_definition( memory: &MemoryType, style: &MemoryStyle, vm_memory_location: NonNull<VMMemoryDefinition> ) -> Result<VMSharedMemory, 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 copy(&mut self) -> Result<VMSharedMemory, MemoryError>
pub fn copy(&mut self) -> Result<VMSharedMemory, MemoryError>
Copies this memory to a new memory
Trait Implementations§
§fn clone(&self) -> VMSharedMemory
fn clone(&self) -> VMSharedMemory
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read more§fn from(mem: VMSharedMemory) -> VMMemory
fn from(mem: VMSharedMemory) -> VMMemory
§fn ty(&self) -> MemoryType
fn ty(&self) -> MemoryType
Returns the type for this memory.
§fn style(&self) -> MemoryStyle
fn style(&self) -> MemoryStyle
Returns the memory style 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 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, Global>, MemoryError>
fn try_clone(&self) -> Result<Box<dyn LinearMemory, Global>, MemoryError>
Shared memory can always be cloned
§fn copy(&mut self) -> Result<Box<dyn LinearMemory, Global>, MemoryError>
fn copy(&mut self) -> Result<Box<dyn LinearMemory, Global>, 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>
Auto Trait Implementations§
Blanket Implementations§
§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§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
§fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>
fn deserialize( &self, deserializer: &mut D ) -> Result<With<T, W>, <D as Fallible>::Error>
§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§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>where
F: FnOnce(&Self) -> bool,
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>where F: FnOnce(&Self) -> bool,
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