SignalHandlerTable

os::ipc::signal

Struct SignalHandlerTable 

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pub struct SignalHandlerTable {
    pub actions: [SignalAction; 32],
}
Expand description

信号的动作表 每个进程拥有一个独立的信号处理动作表， 用于存储每个信号的处理函数、屏蔽字和标志。 索引 0 未用，信号编号从 1..=_NSIG

§SAFE:

该结构体包含裸指针，但其使用受限于内核对任务的锁保护， 因此可以安全地实现 Send 和 Sync。

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§actions: [SignalAction; 32]

动作数组，索引 0 未用，信号编号从 1..=_NSIG

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impl SignalHandlerTable

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pub fn new() -> Self

创建一个新的进程信号状态，所有信号动作和屏蔽字为空，待处理信号为空

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pub fn set_action(&mut self, sig: usize, action: SignalAction)

设置某个信号的动作

Trait Implementations§

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impl Clone for SignalHandlerTable

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fn clone(&self) -> SignalHandlerTable

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SignalHandlerTable

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

Formats the value using the given formatter. Read more
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impl Send for SignalHandlerTable

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impl Sync for SignalHandlerTable

Auto Trait Implementations§

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impl Freeze for SignalHandlerTable

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impl RefUnwindSafe for SignalHandlerTable

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impl Unpin for SignalHandlerTable

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impl UnwindSafe for SignalHandlerTable

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.