[−][src]Struct wasmer_vm::Mmap
A simple struct consisting of a page-aligned pointer to page-aligned and initially-zeroed memory and a length.
Implementations
impl Mmap
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pub fn new() -> Self
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Construct a new empty instance of Mmap
.
pub fn with_at_least(size: usize) -> Result<Self, String>
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Create a new Mmap
pointing to at least size
bytes of page-aligned accessible memory.
pub fn accessible_reserved(
accessible_size: usize,
mapping_size: usize
) -> Result<Self, String>
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accessible_size: usize,
mapping_size: usize
) -> Result<Self, String>
Create a new Mmap
pointing to accessible_size
bytes of page-aligned accessible memory,
within a reserved mapping of mapping_size
bytes. accessible_size
and mapping_size
must be native page-size multiples.
pub fn make_accessible(
&mut self,
start: usize,
len: usize
) -> Result<(), String>
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&mut self,
start: usize,
len: usize
) -> Result<(), String>
Make the memory starting at start
and extending for len
bytes accessible.
start
and len
must be native page-size multiples and describe a range within
self
's reserved memory.
pub fn as_slice(&self) -> &[u8]
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Return the allocated memory as a slice of u8.
pub fn as_mut_slice(&mut self) -> &mut [u8]
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Return the allocated memory as a mutable slice of u8.
pub fn as_ptr(&self) -> *const u8
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Return the allocated memory as a pointer to u8.
pub fn as_mut_ptr(&mut self) -> *mut u8
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Return the allocated memory as a mutable pointer to u8.
pub fn len(&self) -> usize
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Return the length of the allocated memory.
pub fn is_empty(&self) -> bool
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Return whether any memory has been allocated.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for Mmap
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impl Send for Mmap
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impl Sync for Mmap
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impl Unpin for Mmap
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impl UnwindSafe for Mmap
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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> 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, 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>,