Struct OnSignals

pub struct OnSignals<'a, H: AsHandleRef> { /* private fields */ }

A future that completes when some set of signals become available on a Handle.

Implementations

impl<'a, H: AsHandleRef + 'a> OnSignals<'a, H>

pub fn new(handle: H, signals: Signals) -> Self

Creates a new OnSignals object which will receive notifications when any signals in signals occur on handle.

pub fn take_handle(self) -> H

where H: HandleBased,

Takes the handle.

Trait Implementations

impl<H: AsHandleRef> AsHandleRef for OnSignals<'_, H>

fn as_handle_ref(&self) -> HandleRef<'_>

Get a reference to the handle. One important use of such a reference is for object_wait_many.

fn raw_handle(&self) -> u32

Interpret the reference as a raw handle (an integer type). Two distinct handles will have different raw values (so it can perhaps be used as a key in a data structure).

fn signal_handle( &self, clear_mask: Signals, set_mask: Signals, ) -> Result<(), Status>

Set and clear userspace-accessible signal bits on an object. Wraps the zx_object_signal syscall.

fn wait_handle( &self, signals: Signals, deadline: Instant<MonotonicTimeline>, ) -> WaitResult

Waits on a handle. Wraps the zx_object_wait_one syscall.

fn wait_async_handle( &self, port: &Port, key: u64, signals: Signals, options: WaitAsyncOpts, ) -> Result<(), Status>

Causes packet delivery on the given port when the object changes state and matches signals. zx_object_wait_async syscall.

fn get_name(&self) -> Result<Name, Status>

Get the Property::NAME property for this object.

fn set_name(&self, name: &Name) -> Result<(), Status>

Set the Property::NAME property for this object.

fn basic_info(&self) -> Result<HandleBasicInfo, Status>

Wraps the zx_object_get_info syscall for the ZX_INFO_HANDLE_BASIC topic.

fn count_info(&self) -> Result<HandleCountInfo, Status>

Wraps the zx_object_get_info syscall for the ZX_INFO_HANDLE_COUNT topic.

fn get_koid(&self) -> Result<Koid, Status>

Returns the koid (kernel object ID) for this handle.

impl<H: AsHandleRef> AsRef<H> for OnSignals<'_, H>

fn as_ref(&self) -> &H

Converts this type into a shared reference of the (usually inferred) input type.

impl<H: AsHandleRef> Debug for OnSignals<'_, H>

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

Formats the value using the given formatter.

impl<H: AsHandleRef> Drop for OnSignals<'_, H>

fn drop(&mut self)

Executes the destructor for this type.

impl<H: AsHandleRef + Unpin> Future for OnSignals<'_, H>

type Output = Result<Signals, Status>

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>

Attempts to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.