Struct PortWatcherSynchronousProxy

pub struct PortWatcherSynchronousProxy { /* private fields */ }

Implementations

impl PortWatcherSynchronousProxy

pub fn new(channel: Channel) -> Self

pub fn into_channel(self) -> Channel

pub fn wait_for_event( &self, deadline: MonotonicInstant, ) -> Result<PortWatcherEvent, Error>

Waits until an event arrives and returns it. It is safe for other threads to make concurrent requests while waiting for an event.

pub fn watch( &self, ___deadline: MonotonicInstant, ) -> Result<DevicePortEvent, Error>

Get the next port event.

The first N calls return [DevicePortEvent.existing] where N is the number of ports present on the device at the time of the watcher’s creation. The next call returns [DevicePortEvent.idle] to indicate the end of existing ports. Subsequent calls block until a port is added ([DevicePortEvent.added]) or removed ([DevicePortEvent.removed]).

The server closes the PortWatcher channel with ZX_ERR_CANCELED if the number of unread events reaches a server-selected limit that is at least two times MAX_PORTS. Clients are encouraged to maintain a hanging call to Watch at all times to avoid triggering this condition.

• response event next port event.

Trait Implementations

impl Debug for PortWatcherSynchronousProxy

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

Formats the value using the given formatter.

impl SynchronousProxy for PortWatcherSynchronousProxy

type Proxy = PortWatcherProxy

The async proxy for the same protocol.

type Protocol = PortWatcherMarker

The protocol which this Proxy controls.

fn from_channel(inner: Channel) -> Self

Create a proxy over the given channel.

fn into_channel(self) -> Channel

Convert the proxy back into a channel.

fn as_channel(&self) -> &Channel

Get a reference to the proxy’s underlying channel.

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

Returns true if the proxy has received the PEER_CLOSED signal.