Enum SystemError 

pub enum SystemError {
    InitializationFailed {
        reason: String,
    },
    InvalidConfiguration {
        parameter: String,
        value: String,
        expected: Option<String>,
    },
    ResourceAllocationFailed {
        resource: String,
        details: Option<String>,
    },
    NotInitialized {
        component: String,
    },
    AlreadyInitialized {
        component: String,
    },
    ShutdownFailed {
        reason: String,
    },
    DatabaseError {
        operation: String,
        details: Option<String>,
    },
    MetricsError {
        reason: String,
    },
    ThreadPoolError {
        reason: String,
    },
}

System configuration and initialization errors

Variants

InitializationFailed

System initialization failed

Fields

reason: String

Initialization failure reason

InvalidConfiguration

Invalid configuration

Fields

parameter: String

Configuration parameter name

value: String

Invalid value

expected: Option<String>

Optional expected value description

ResourceAllocationFailed

Resource allocation failed

Fields

resource: String

Resource type

details: Option<String>

Optional details

NotInitialized

System not initialized

Fields

component: String

Component that requires initialization

AlreadyInitialized

System already initialized

Fields

component: String

Component that’s already initialized

ShutdownFailed

Graceful shutdown failed

Fields

reason: String

Shutdown failure reason

DatabaseError

Database connection error

Fields

operation: String

Database operation that failed

details: Option<String>

Optional error details

MetricsError

Metrics system error

Fields

reason: String

Metrics error reason

ThreadPoolError

Thread pool error

Fields

reason: String

Thread pool error reason

Implementations

impl SystemError

pub fn init_failed(reason: impl Into<String>) -> Self

Create an initialization failed error

pub fn invalid_config( parameter: impl Into<String>, value: impl Into<String>, ) -> Self

Create an invalid configuration error

Trait Implementations

impl Debug for SystemError

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

Formats the value using the given formatter.

impl Display for SystemError

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

Formats the value using the given formatter.

impl Error for SystemError

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<SystemError> for Error

fn from(source: SystemError) -> Self

Converts to this type from the input type.