Struct PollFd

#[repr(C)]
pub struct PollFd {
    pub fd: u32,
    pub events: PollEvent,
    pub revents: PollEvent,
}

用于 poll 系统调用的文件描述符结构体

MUSL: https://github.com/bminor/musl/blob/c47ad25ea3b484e10326f933e927c0bc8cded3da/include/poll.h#L31

Fields

fd: u32

文件描述符（File Descriptor），要监视的对象

events: PollEvent

期望监听的事件（如可读、可写等），由用户设置

revents: PollEvent

实际发生的事件，由内核填写

Trait Implementations

impl Clone for PollFd

fn clone(&self) -> PollFd

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PollFd

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

Formats the value using the given formatter.