SharedMemory

Struct SharedMemory 

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pub struct SharedMemory {
    frames: Vec<FrameTracker>,
    len: usize,
}
Expand description

共享内存:持有一组物理页(FrameTracker)

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§frames: Vec<FrameTracker>§len: usize

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impl SharedMemory

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pub fn new(pages: usize) -> Self

分配 pages 个物理页作为共享段

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pub fn len(&self) -> usize

共享段字节数

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pub fn is_empty(&self) -> bool

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pub fn map_to_user(self) -> Result<usize, PagingError>

将共享段映射到当前进程用户空间 返回

  • Ok(usize) 成功;Err(PagingError) 失败

Auto Trait Implementations§

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impl Freeze for SharedMemory

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impl RefUnwindSafe for SharedMemory

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impl Send for SharedMemory

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impl Sync for SharedMemory

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impl Unpin for SharedMemory

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impl UnwindSafe for SharedMemory

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.