[−][src]Struct wasmer_runtime_core_near::memory::Memory
A shared or unshared wasm linear memory.
A Memory
represents the memory used by a wasm instance.
Implementations
impl Memory
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pub fn new(desc: MemoryDescriptor) -> Result<Self, CreationError>
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Create a new Memory
from a MemoryDescriptor
Usage:
fn create_memory() -> Result<()> { let descriptor = MemoryDescriptor::new(Pages(10), None, false).unwrap(); let memory = Memory::new(descriptor)?; Ok(()) }
pub fn descriptor(&self) -> MemoryDescriptor
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Return the MemoryDescriptor
that this memory
was created with.
pub fn grow(&self, delta: Pages) -> Result<Pages, GrowError>
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Grow this memory by the specified number of pages.
pub fn size(&self) -> Pages
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The size, in wasm pages, of this memory.
pub fn view<T: ValueType>(&self) -> MemoryView<'_, T>
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Return a "view" of the currently accessible memory. By
default, the view is unsynchronized, using regular memory
accesses. You can force a memory view to use atomic accesses
by calling the atomically
method.
Notes:
This method is safe (as in, it won't cause the host to crash or have UB), but it doesn't obey rust's rules involving data races, especially concurrent ones. Therefore, if this memory is shared between multiple threads, a single memory location can be mutated concurrently without synchronization.
Usage:
// Without synchronization. let view: MemoryView<u8> = memory.view(); for byte in view[0x1000 .. 0x1010].iter().map(Cell::get) { println!("byte: {}", byte); } // With synchronization. let atomic_view = view.atomically(); for byte in atomic_view[0x1000 .. 0x1010].iter().map(|atom| atom.load(Ordering::SeqCst)) { println!("byte: {}", byte); }
Trait Implementations
impl Clone for Memory
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impl Debug for Memory
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impl<'a> Exportable<'a> for Memory
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fn get_self(exports: &'a Exports, name: &str) -> ResolveResult<Self>
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impl IsExport for Memory
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Auto Trait Implementations
impl !RefUnwindSafe for Memory
impl Send for Memory
impl Sync for Memory
impl Unpin for Memory
impl !UnwindSafe for Memory
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,