Struct RemoteServiceSynchronousProxy 

pub struct RemoteServiceSynchronousProxy { /* private fields */ }

Implementations

impl RemoteServiceSynchronousProxy

pub fn new(channel: Channel) -> Self

pub fn into_channel(self) -> Channel

pub fn wait_for_event( &self, deadline: MonotonicInstant, ) -> Result<RemoteServiceEvent, 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 discover_characteristics( &self, ___deadline: MonotonicInstant, ) -> Result<Vec<Characteristic>, Error>

Returns the characteristics and characteristic descriptors that belong to this service.

pub fn read_by_type( &self, uuid: &Uuid, ___deadline: MonotonicInstant, ) -> Result<RemoteServiceReadByTypeResult, Error>

Reads characteristics and descriptors with the given uuid.

This method is useful for reading values before discovery has completed, thereby reducing latency.

• request uuid The UUID of the characteristics/descriptors to read.

• response results The results of the read. May be empty if no matching values are read. If reading a value results in a permission error, the handle and error will be included.

• error Returns INVALID_PARAMETERS if uuid refers to an internally reserved descriptor type (e.g. the Client Characteristic Configuration descriptor).
• error Returns TOO_MANY_RESULTS if more results were read than can fit in a FIDL response. Consider reading characteristics/descriptors individually after performing discovery.
• error Returns FAILURE if the server returns an error not specific to a single result.

pub fn read_characteristic( &self, handle: &Handle, options: &ReadOptions, ___deadline: MonotonicInstant, ) -> Result<RemoteServiceReadCharacteristicResult, Error>

Reads the value of a characteristic with the given handle.

• request handle The characteristic handle to read.
• request options Options that apply to the read.

• response value The value of the characteristic.

• error Returns INVALID_HANDLE if handle is invalid.
• error Returns INVALID_PARAMETERS if options is invalid.
• error Returns READ_NOT_PERMITTED or INSUFFICIENT_* if the server rejects the read request.
• error Returns FAILURE if the server returns an error.

pub fn write_characteristic( &self, handle: &Handle, value: &[u8], options: &WriteOptions, ___deadline: MonotonicInstant, ) -> Result<RemoteServiceWriteCharacteristicResult, Error>

Writes value to the characteristic with handle using the provided options.

It is not recommended to send additional writes while a write is already in progress (the server may receive simultaneous writes in any order).

• request handle The characteristic to be written to.
• request value The value to be written.
• request options Options that apply to the write.

• response An empty response will be sent when a success response is received from the server (or immediately if options.with_response is false)

• error Returns INVALID_HANDLE if handle is invalid.
• error Returns INVALID_PARAMETERS if options is invalid.
• error Returns WRITE_NOT_PERMITTED or INSUFFICIENT_*if the server rejects the write request with a reason.
• error Returns FAILURE if the server returns an error.

pub fn read_descriptor( &self, handle: &Handle, options: &ReadOptions, ___deadline: MonotonicInstant, ) -> Result<RemoteServiceReadDescriptorResult, Error>

Reads the value of the characteristic descriptor with handle and returns it in the reply.

• request handle The descriptor handle to read.
• request options Options that apply to the read.

• response value The value of the descriptor.

• error Returns INVALID_HANDLE if handle is invalid.
• error Returns INVALID_PARAMETERS if options is invalid.
• error Returns READ_NOT_PERMITTED or INSUFFICIENT_* if the server rejects the read request.
• error Returns FAILURE if the server returns an error.

pub fn write_descriptor( &self, handle: &Handle, value: &[u8], options: &WriteOptions, ___deadline: MonotonicInstant, ) -> Result<RemoteServiceWriteDescriptorResult, Error>

Writes value to the characteristic descriptor with handle. It is not recommended to send additional writes while a write is already in progress (the server may receive simultaneous writes in any order).

• request handle The descriptor handle to written to.
• request value The value to be written.
• request options Options that apply to the write.

• response An empty response will be sent when a success response is received from the server (or immediately if options.with_response is false)

• error Returns INVALID_HANDLE if handle is invalid or refers to an internally reserved descriptor type (e.g. the Client Characteristic Configuration descriptor).
• error Returns INVALID_PARAMETERS if options is invalid.
• error Returns WRITE_NOT_PERMITTED or INSUFFICIENT_* if the server rejects the write with a reason.
• error Returns FAILURE if the server returns an error.

pub fn register_characteristic_notifier( &self, handle: &Handle, notifier: ClientEnd<CharacteristicNotifierMarker>, ___deadline: MonotonicInstant, ) -> Result<RemoteServiceRegisterCharacteristicNotifierResult, Error>

Subscribe to notifications & indications from the characteristic with the given handle.

Either notifications or indications will be enabled depending on characteristic properties. Indications will be preferred if they are supported. This operation fails if the characteristic does not have the “notify” or “indicate” property.

A write request will be issued to configure the characteristic for notifications/indications if it contains a Client Characteristic Configuration descriptor. This method fails if an error occurs while writing to the descriptor.

On success, the notifier protocol can be used to be notified when the peer sends a notification or indication. Indications are automatically confirmed. When the protocol is dropped, the subscription may end if no other local client is receiving notifications.

• request handle the characteristic handle.
• request notifier the protocol used for notifications.

• response An empty response will be sent immediately if registration succeeds.

• error Returns a FAILURE if the characteristic does not support notifications or indications.
• error Returns a INVALID_HANDLE if handle is invalid.
• error Returns a WRITE_NOT_PERMITTED or INSUFFICIENT_*for a descriptor write error.

Trait Implementations

impl Debug for RemoteServiceSynchronousProxy

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

Formats the value using the given formatter.

impl From<Channel> for RemoteServiceSynchronousProxy

Available on Fuchsia only.

fn from(value: Channel) -> Self

Converts to this type from the input type.

impl From<RemoteServiceSynchronousProxy> for Handle

Available on Fuchsia only.

fn from(value: RemoteServiceSynchronousProxy) -> Self

Converts to this type from the input type.

impl FromClient for RemoteServiceSynchronousProxy

Available on Fuchsia only.

type Protocol = RemoteServiceMarker

The protocol.

fn from_client(value: ClientEnd<RemoteServiceMarker>) -> Self

Converts from a client.

impl SynchronousProxy for RemoteServiceSynchronousProxy

Available on Fuchsia only.

type Proxy = RemoteServiceProxy

The async proxy for the same protocol.

type Protocol = RemoteServiceMarker

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.