Enum Error 

#[non_exhaustive]
pub enum Error {
    Bluetooth(Error),
    DeviceNotFound(DeviceNotFoundReason),
    NotConnected,
    CharacteristicNotFound {
        uuid: String,
        service_count: usize,
    },
    InvalidData(String),
    InvalidHistoryData {
        message: String,
        param: Option<HistoryParam>,
        expected: usize,
        actual: usize,
    },
    InvalidReadingFormat {
        expected: usize,
        actual: usize,
    },
    Timeout {
        operation: String,
        duration: Duration,
    },
    Cancelled,
    Io(Error),
    ConnectionFailed {
        device_id: Option<String>,
        reason: ConnectionFailureReason,
    },
    WriteFailed {
        uuid: String,
        reason: String,
    },
    InvalidConfig(String),
}

Errors that can occur when communicating with Aranet devices.

This enum is marked #[non_exhaustive] to allow adding new error variants in future versions without breaking downstream code.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Bluetooth(Error)

Bluetooth Low Energy error.

DeviceNotFound(DeviceNotFoundReason)

Device not found during scan or connection.

NotConnected

Operation attempted while not connected to device.

CharacteristicNotFound

Required BLE characteristic not found on device.

Fields

uuid: String

The UUID that was not found.

service_count: usize

Number of services that were searched.

InvalidData(String)

Failed to parse data received from device.

InvalidHistoryData

Invalid history data format.

Fields

message: String

Description of the error.

param: Option<HistoryParam>

The history parameter being downloaded.

expected: usize

Expected data size.

actual: usize

Actual data size received.

InvalidReadingFormat

Invalid reading format from sensor.

Fields

expected: usize

Expected data size.

actual: usize

Actual data size received.

Timeout

Operation timed out.

Fields

operation: String

The operation that timed out.

duration: Duration

The timeout duration.

Cancelled

Operation was cancelled.

Io(Error)

I/O error.

ConnectionFailed

Connection failed with specific reason.

Fields

device_id: Option<String>

The device identifier that failed to connect.

reason: ConnectionFailureReason

The structured reason for the failure.

WriteFailed

Write operation failed.

Fields

uuid: String

The characteristic UUID.

reason: String

The reason for the failure.

InvalidConfig(String)

Invalid configuration provided.

Implementations

impl Error

pub fn device_not_found(identifier: impl Into<String>) -> Self

Create a device not found error for a specific identifier.

pub fn timeout(operation: impl Into<String>, duration: Duration) -> Self

Create a timeout error with operation context.

pub fn characteristic_not_found( uuid: impl Into<String>, service_count: usize, ) -> Self

Create a characteristic not found error.

pub fn invalid_reading(expected: usize, actual: usize) -> Self

Create an invalid reading format error.

pub fn invalid_config(message: impl Into<String>) -> Self

Create a configuration error.

pub fn connection_failed( device_id: Option<String>, reason: ConnectionFailureReason, ) -> Self

Create a connection failure with structured reason.

pub fn connection_failed_str( device_id: Option<String>, reason: impl Into<String>, ) -> Self

Create a connection failure with a string reason.

This is a convenience method that wraps the string in ConnectionFailureReason::Other.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<ParseError> for Error

fn from(err: ParseError) -> Self

Converts to this type from the input type.