Enum SigMaskHow

#[repr(u8)]
pub enum SigMaskHow {
    Block = 0,
    Unblock = 1,
    SetMask = 2,
}

信号屏蔽操作方式（用于 sigprocmask 或类似接口）

MUSL: https://github.com/bminor/musl/blob/c47ad25ea3b484e10326f933e927c0bc8cded3da/include/signal.h#L30

Variants

Block = 0

阻塞指定信号（将信号加入进程的阻塞信号集）。

Unblock = 1

解除阻塞指定信号（将信号从阻塞信号集中移除）。

SetMask = 2

设置阻塞信号集为指定的信号集（替换整个信号集）。

Trait Implementations

impl Clone for SigMaskHow

fn clone(&self) -> SigMaskHow

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SigMaskHow

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

Formats the value using the given formatter.

impl TryFrom<u8> for SigMaskHow

type Error = TryFromPrimitiveError<SigMaskHow>

The type returned in the event of a conversion error.

fn try_from(number: u8) -> Result<Self, TryFromPrimitiveError<Self>>

Performs the conversion.

impl TryFromPrimitive for SigMaskHow

const NAME: &'static str = "SigMaskHow"

type Primitive = u8

type Error = TryFromPrimitiveError<SigMaskHow>

fn try_from_primitive( number: Self::Primitive, ) -> Result<Self, TryFromPrimitiveError<Self>>

impl Copy for SigMaskHow