Trait alsa::poll::PollDescriptors

pub trait PollDescriptors {
    fn count(&self) -> usize;
    fn fill(&self, _: &mut [pollfd]) -> Result<usize>;
    fn revents(&self, _: &[pollfd]) -> Result<PollFlags>;

    fn get(&self) -> Result<Vec<pollfd>> { ... }
}

Required Methods

fn count(&self) -> usize

fn fill(&self, _: &mut [pollfd]) -> Result<usize>

fn revents(&self, _: &[pollfd]) -> Result<PollFlags>

Provided Methods

fn get(&self) -> Result<Vec<pollfd>>

Wrapper around count and fill - returns an array of pollfds

Implementations on Foreign Types

impl PollDescriptors for pollfd

fn count(&self) -> usize

fn fill(&self, a: &mut [pollfd]) -> Result<usize>

fn revents(&self, a: &[pollfd]) -> Result<PollFlags>

fn get(&self) -> Result<Vec<pollfd>>

impl<'a> PollDescriptors for (&'a Seq, Option<Direction>)

fn count(&self) -> usize

fn fill(&self, p: &mut [pollfd]) -> Result<usize>

fn revents(&self, p: &[pollfd]) -> Result<PollFlags>

fn get(&self) -> Result<Vec<pollfd>>

Implementors

• impl PollDescriptors for Ctl

• impl PollDescriptors for HCtl

• impl PollDescriptors for PCM

• impl PollDescriptors for Rawmidi

• impl PollDescriptors for Mixer