SharedMemoryTable

Struct SharedMemoryTable 

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pub struct SharedMemoryTable {
    memory: Vec<Arc<SharedMemory>>,
}
Expand description

共享内存表:简单管理若干共享段

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§memory: Vec<Arc<SharedMemory>>

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impl SharedMemoryTable

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pub fn new() -> Self

创建共享内存表

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pub fn create(&mut self, pages: usize) -> Arc<SharedMemory>

新建共享段并登记,返回 Arc 句柄

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pub fn remove(&mut self, shm: &Arc<SharedMemory>) -> bool

简单移除(若还被其他地方持有 Arc,不会真正释放)

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pub fn len(&self) -> usize

当前已登记的共享段数量

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pub fn is_empty(&self) -> bool

Auto Trait Implementations§

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impl Freeze for SharedMemoryTable

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impl RefUnwindSafe for SharedMemoryTable

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impl Send for SharedMemoryTable

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impl Sync for SharedMemoryTable

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impl Unpin for SharedMemoryTable

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impl UnwindSafe for SharedMemoryTable

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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.