Struct Error 

pub struct Error { /* private fields */ }

An error from spawning a process. This is a thin wrapper around crate::Errno, but with more context about what went wrong.

Implementations

impl Error

pub fn new(errno: Errno, context: Context) -> Self

Creates a new Error.

pub fn result<S>(value: S, context: Context) -> Result<S, Self>

where S: ErrnoSentinel + PartialEq<S>,

Converts a value S into an Error. Useful for turning libc function return types into a Result.

pub fn errno(&self) -> Errno

Gets the errno.

pub fn context(&self) -> Context

Gets the error context.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Error

impl Debug for Error

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Error

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Error

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

Formats the value using the given formatter.

impl Eq for Error

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<Errno> for Error

fn from(err: Errno) -> Self

Converts to this type from the input type.

impl From<Error> for RunError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Errno

fn from(err: Error) -> Errno

Converts to this type from the input type.

impl From<Error> for Error

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for [u8; 8]

fn from(error: Error) -> Self

Serializes an Error into bytes. Useful for sending the error through a pipe to the parent process.

impl From<[u8; 8]> for Error

fn from(bytes: [u8; 8]) -> Self

Deserializes an Error from bytes. Useful for receiving the error through a pipe from the child process.

impl PartialEq for Error

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Error

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Error