Struct Key 

pub struct Key {
    state: &'static KeyState,
}

Fields

state: &'static KeyState

Implementations

impl Key

pub fn open_by_alias(name: &str) -> Result<Self, Error>

pub fn open_by_label(label: &str) -> Result<Self, Error>

pub fn open_by_code(code: u32) -> Result<Self, Error>

fn open_for_node(node: usize) -> Result<Self, Error>

pub fn code(&self) -> u32

pub fn label(&self) -> &'static str

pub fn poll(&self) -> Result<KeyEvent, Error>

Snapshot the line without blocking.

pub fn wait(&self) -> Result<KeyEvent, Error>

Block until the next edge. EBUSY if another thread is already waiting; edges arriving before wake-up coalesce into one event.