Enum procfs::ProcError

pub enum ProcError {
    PermissionDenied(Option<PathBuf>),
    NotFound(Option<PathBuf>),
    Incomplete(Option<PathBuf>),
    Io(Error, Option<PathBuf>),
    Other(String),
}

Error type for most procfs functions.

Most of the variants have an Option<PathBuf> component. If the error root cause was related to some operation on a file, the path of this file will be stored in this component.

Variants

PermissionDenied(Option<PathBuf>)

A standard permission denied error.

This will be a common error, since some files in the procfs filesystem are only readable by the root user.

NotFound(Option<PathBuf>)

This might mean that the process no longer exists, or that your kernel doesn't support the feature you are trying to use.

Incomplete(Option<PathBuf>)

This might mean that a procfs file has incomplete contents.

Io(Error, Option<PathBuf>)

Any other IO error (rare).

Other(String)

Any other non-IO error (very rare).

Trait Implementations

impl From<Error> for ProcError

fn from(io: Error) -> Self

Performs the conversion.

impl Display for ProcError

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

Formats the value using the given formatter.

impl Debug for ProcError

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

Formats the value using the given formatter.

impl Error for ProcError

fn description(&self) -> &str

This method is soft-deprecated.

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

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

The lower-level cause of this error, if any.

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

The lower-level source of this error, if any.

fn type_id(&self) -> TypeId where
    Self: 'static, 

Gets the TypeId of self