Struct EventPair 

pub struct EventPair(/* private fields */);

An object representing a Zircon event_pair

As essentially a subtype of NullableHandle, it can be freely interconverted.

Implementations

impl EventPair

pub fn raw_handle(&self) -> u32

Return the handle’s integer value.

pub fn into_raw(self) -> u32

Return the raw handle’s integer value without closing it when self is dropped.

pub fn unowned(&self) -> Unowned<'_, EventPair>

Returns an [Unowned] referring to this handle.

pub fn as_handle_ref(&self) -> Unowned<'_, NullableHandle>

Returns a HandleRef referring to this handle.

pub fn duplicate(&self, rights: Rights) -> Result<EventPair, Status>

Wraps the zx_handle_duplicate syscall.

pub fn replace(self, rights: Rights) -> Result<EventPair, Status>

Wraps the zx_handle_replace syscall.

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

Wraps the zx_object_signal syscall.

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

Wraps the zx_object_wait_one syscall.

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

Wraps the zx_object_wait_async syscall.

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

Wraps a call to the zx_object_get_property syscall for the ZX_PROP_NAME property.

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

Wraps a call to the zx_object_set_property syscall for the ZX_PROP_NAME property.

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

Wraps the zx_object_get_info syscall for the ZX_INFO_HANDLE_BASIC topic.

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

Wraps the zx_object_get_info syscall for the ZX_INFO_HANDLE_COUNT topic.

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

Returns the [Koid] for the object referred to by this handle.

impl EventPair

pub fn create() -> (EventPair, EventPair)

Create an event pair, a pair of objects which can signal each other. Wraps the zx_eventpair_create syscall.

Panics

If the kernel reports no available memory to create an event pair or the process’ job policy disallows EventPair creation.

Trait Implementations

impl AsHandleRef for EventPair

fn as_handle_ref(&self) -> Unowned<'_, NullableHandle>

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

impl CompatFrom<EventPair> for EventPair

Available on crate feature fuchsia only.

fn compat_from(value: EventPair) -> EventPair

Converts value into a value of this type.

impl Debug for EventPair

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

Formats the value using the given formatter.

impl<E> Encode<WireEventPair, E> for EventPair

where E: HandleEncoder + ?Sized,

fn encode( self, encoder: &mut E, out: &mut MaybeUninit<WireEventPair>, constraint: <WireEventPair as Constrained>::Constraint, ) -> Result<(), EncodeError>

Encodes this value into an encoder and output.

const COPY_OPTIMIZATION: CopyOptimization<Self, W> = _

Whether the conversion from Self to W is equivalent to copying the raw bytes of Self.

impl<E> EncodeOption<WireOptionalEventPair, E> for EventPair

where E: HandleEncoder + ?Sized,

fn encode_option( this: Option<EventPair>, encoder: &mut E, out: &mut MaybeUninit<WireOptionalEventPair>, constraint: (), ) -> Result<(), EncodeError>

Encodes this optional value into an encoder and output.

impl From<EventPair> for NullableHandle

fn from(x: EventPair) -> NullableHandle

Converts to this type from the input type.

impl From<NullableHandle> for EventPair

fn from(handle: NullableHandle) -> EventPair

Converts to this type from the input type.

impl FromWire<WireEventPair> for EventPair

fn from_wire(wire: WireEventPair) -> EventPair

Converts the given wire to this type.

const COPY_OPTIMIZATION: CopyOptimization<W, Self> = _

Whether the conversion from W to Self is equivalent to copying the raw bytes of W.

impl FromWireOption<WireOptionalEventPair> for EventPair

fn from_wire_option(wire: WireOptionalEventPair) -> Option<EventPair>

Converts the given wire to an option of this type.

impl HandleBased for EventPair

fn duplicate_handle(&self, rights: Rights) -> Result<Self, Status>

Duplicate a handle, possibly reducing the rights available. Wraps the zx_handle_duplicate syscall.

fn replace_handle(self, rights: Rights) -> Result<Self, Status>

Create a replacement for a handle, possibly reducing the rights available. This invalidates the original handle. Wraps the zx_handle_replace syscall.

fn into_handle(self) -> NullableHandle

Converts the value into its inner handle.

fn into_raw(self) -> u32

Converts the handle into it’s raw representation.

fn from_handle(handle: NullableHandle) -> Self

Creates an instance of this type from a handle.

fn into_handle_based<H>(self) -> H

where H: HandleBased,

Creates an instance of another handle-based type from this value’s inner handle.

fn from_handle_based<H>(h: H) -> Self

where H: HandleBased,

Creates an instance of this type from the inner handle of another handle-based type.

fn is_invalid_handle(&self) -> bool

impl Hash for EventPair

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for EventPair

fn cmp(&self, other: &EventPair) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for EventPair

fn eq(&self, other: &EventPair) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for EventPair

fn partial_cmp(&self, other: &EventPair) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Peered for EventPair

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

Set and clear userspace-accessible signal bits on the object’s peer. Wraps the zx_object_signal_peer syscall.

fn is_closed(&self) -> Result<bool, Status>

Returns true if the handle has received the PEER_CLOSED signal.

impl Eq for EventPair

impl StructuralPartialEq for EventPair