Struct ndk::looper::ThreadLooper

pub struct ThreadLooper { /* fields omitted */ }

A thread-local ALooper. This contains a native ALooper * and promises that there is a looper associated with the current thread.

Implementations

impl ThreadLooper

pub fn prepare() -> Self

Prepares a looper for the current thread and returns it

pub fn for_thread() -> Option<Self>

Returns the looper associated with the current thread, if any.

pub fn poll_once(&self) -> Result<Poll, LooperError>

Polls the looper, blocking on processing an event.

pub fn poll_once_timeout(&self, timeout: Duration) -> Result<Poll, LooperError>

Polls the looper, blocking on processing an event, but with a timeout. Give a timeout of 0 to make this non-blocking.

It panics if the timeout is larger than expressible as an i32 of milliseconds (roughly 25 days).

pub fn poll_all(&self) -> Result<Poll, LooperError>

Repeatedly polls the looper, blocking on processing an event.

This function will never return Poll::Callback.

pub fn poll_all_timeout(&self, timeout: Duration) -> Result<Poll, LooperError>

Repeatedly polls the looper, blocking on processing an event, but with a timeout. Give a timeout of 0 to make this non-blocking.

This function will never return Poll::Callback.

It panics if the timeout is larger than expressible as an i32 of milliseconds (roughly 25 days).

pub fn as_foreign(&self) -> &ForeignLooper

Returns a reference to the ForeignLooper that is associated with the current thread.

pub fn into_foreign(self) -> ForeignLooper

Trait Implementations

impl Debug for ThreadLooper

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

Formats the value using the given formatter.