Struct sp_sandbox::Memory [−][src]
Reference to a sandboxed linear memory, that will be used by the guest module.
The memory can't be directly accessed by supervisor, but only
through designated functions get
and set
.
Implementations
impl Memory
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pub fn new(initial: u32, maximum: Option<u32>) -> Result<Memory, Error>
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Construct a new linear memory instance.
The memory allocated with initial number of pages specified by initial
.
Minimal possible value for initial
is 0 and maximum possible is 65536
.
(Since maximum addressable memory is 232 = 4GiB = 65536 * 64KiB).
It is possible to limit maximum number of pages this memory instance can have by specifying
maximum
. If not specified, this memory instance would be able to allocate up to 4GiB.
Allocated memory is always zeroed.
pub fn get(&self, ptr: u32, buf: &mut [u8]) -> Result<(), Error>
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Read a memory area at the address ptr
with the size of the provided slice buf
.
Returns Err
if the range is out-of-bounds.
pub fn set(&self, ptr: u32, value: &[u8]) -> Result<(), Error>
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Write a memory area at the address ptr
with contents of the provided slice buf
.
Returns Err
if the range is out-of-bounds.
Trait Implementations
Auto Trait Implementations
impl !RefUnwindSafe for Memory
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impl !Send for Memory
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impl !Sync for Memory
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impl Unpin for Memory
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impl !UnwindSafe for Memory
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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> DynClone for T where
T: Clone,
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T: Clone,
pub fn __clone_box(&self, Private) -> *mut ()
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impl<T> From<T> for T
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, Outer> IsWrappedBy<Outer> for T where
T: From<Outer>,
Outer: AsRef<T> + AsMut<T> + From<T>,
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T: From<Outer>,
Outer: AsRef<T> + AsMut<T> + From<T>,
pub fn from_ref(outer: &Outer) -> &T
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Get a reference to the inner from the outer.
pub fn from_mut(outer: &mut Outer) -> &mut T
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Get a mutable reference to the inner from the outer.
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>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,
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T: UncheckedFrom<S>,
pub fn unchecked_into(self) -> T
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,