Enum ProcfsError 

pub enum ProcfsError {
    NotInitialized,
    Procfs(ProcError),
    Io(Error),
    JoinError(JoinError),
    MutexPoisoned,
}

Errors that can occur while reading metrics from /proc.

Variants

NotInitialized

The source was used before [crate::Procfs::init] was called.

Procfs(ProcError)

An error from the procfs crate (e.g., process not found, parse failure).

Io(Error)

An I/O error reading from /proc directly (e.g., /proc/{pid}/task/{tid}/children).

JoinError(JoinError)

An error occured while joining the polling task.

MutexPoisoned

Trait Implementations

impl Debug for ProcfsError

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

Formats the value using the given formatter.

impl Display for ProcfsError

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

Formats the value using the given formatter.

impl Error for ProcfsError

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 ProcfsError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<JoinError> for ProcfsError

fn from(source: JoinError) -> Self

Converts to this type from the input type.

impl From<ProcError> for ProcfsError

fn from(source: ProcError) -> Self

Converts to this type from the input type.