MemoryGuard

Struct MemoryGuard 

Source
pub struct MemoryGuard { /* private fields */ }
Expand description

Guards memory blocks with a liveness lock, preventing a set of memory blocks from being released while the guard is alive.

Call BytesView::extend_lifetime() or BytesBuf::extend_lifetime() to obtain an instance.

The memory may be used for any otherwise legal purpose; all this guard does is act as a shadow reference to the memory blocks. This can be useful when executing unsafe logic, where there may not otherwise exist any Rust objects holding references to memory blocks in use (e.g. because the code operating on them is not even Rust code).

Trait Implementations§

Source§

impl Debug for MemoryGuard

Source§

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
Source§

impl Default for MemoryGuard

Source§

fn default() -> Self

Creates a memory guard that does not guard any memory blocks.

Useless for real logic but potentially meaningful as a placeholder in tests.

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.