#[repr(i32)]
#[non_exhaustive]
pub enum Errno {
Show 132 variants UnknownErrno, EPERM, ENOENT, ESRCH, EINTR, EIO, ENXIO, E2BIG, ENOEXEC, EBADF, ECHILD, EAGAIN, ENOMEM, EACCES, EFAULT, ENOTBLK, EBUSY, EEXIST, EXDEV, ENODEV, ENOTDIR, EISDIR, EINVAL, ENFILE, EMFILE, ENOTTY, ETXTBSY, EFBIG, ENOSPC, ESPIPE, EROFS, EMLINK, EPIPE, EDOM, ERANGE, EDEADLK, ENAMETOOLONG, ENOLCK, ENOSYS, ENOTEMPTY, ELOOP, ENOMSG, EIDRM, ECHRNG, EL2NSYNC, EL3HLT, EL3RST, ELNRNG, EUNATCH, ENOCSI, EL2HLT, EBADE, EBADR, EXFULL, ENOANO, EBADRQC, EBADSLT, EBFONT, ENOSTR, ENODATA, ETIME, ENOSR, ENONET, ENOPKG, EREMOTE, ENOLINK, EADV, ESRMNT, ECOMM, EPROTO, EMULTIHOP, EDOTDOT, EBADMSG, EOVERFLOW, ENOTUNIQ, EBADFD, EREMCHG, ELIBACC, ELIBBAD, ELIBSCN, ELIBMAX, ELIBEXEC, EILSEQ, ERESTART, ESTRPIPE, EUSERS, ENOTSOCK, EDESTADDRREQ, EMSGSIZE, EPROTOTYPE, ENOPROTOOPT, EPROTONOSUPPORT, ESOCKTNOSUPPORT, EOPNOTSUPP, EPFNOSUPPORT, EAFNOSUPPORT, EADDRINUSE, EADDRNOTAVAIL, ENETDOWN, ENETUNREACH, ENETRESET, ECONNABORTED, ECONNRESET, ENOBUFS, EISCONN, ENOTCONN, ESHUTDOWN, ETOOMANYREFS, ETIMEDOUT, ECONNREFUSED, EHOSTDOWN, EHOSTUNREACH, EALREADY, EINPROGRESS, ESTALE, EUCLEAN, ENOTNAM, ENAVAIL, EISNAM, EREMOTEIO, EDQUOT, ENOMEDIUM, EMEDIUMTYPE, ECANCELED, ENOKEY, EKEYEXPIRED, EKEYREVOKED, EKEYREJECTED, EOWNERDEAD, ENOTRECOVERABLE, ERFKILL, EHWPOISON,
}

Variants (Non-exhaustive)

This enum is marked as 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.

UnknownErrno

EPERM

ENOENT

ESRCH

EINTR

EIO

ENXIO

E2BIG

ENOEXEC

EBADF

ECHILD

EAGAIN

ENOMEM

EACCES

EFAULT

ENOTBLK

EBUSY

EEXIST

EXDEV

ENODEV

ENOTDIR

EISDIR

EINVAL

ENFILE

EMFILE

ENOTTY

ETXTBSY

EFBIG

ENOSPC

ESPIPE

EROFS

EPIPE

EDOM

ERANGE

EDEADLK

ENAMETOOLONG

ENOLCK

ENOSYS

ENOTEMPTY

ELOOP

ENOMSG

EIDRM

ECHRNG

EL2NSYNC

EL3HLT

EL3RST

ELNRNG

EUNATCH

ENOCSI

EL2HLT

EBADE

EBADR

EXFULL

ENOANO

EBADRQC

EBADSLT

EBFONT

ENOSTR

ENODATA

ETIME

ENOSR

ENONET

ENOPKG

EREMOTE

EADV

ESRMNT

ECOMM

EPROTO

EMULTIHOP

EDOTDOT

EBADMSG

EOVERFLOW

ENOTUNIQ

EBADFD

EREMCHG

ELIBACC

ELIBBAD

ELIBSCN

ELIBMAX

ELIBEXEC

EILSEQ

ERESTART

ESTRPIPE

EUSERS

ENOTSOCK

EDESTADDRREQ

EMSGSIZE

EPROTOTYPE

ENOPROTOOPT

EPROTONOSUPPORT

ESOCKTNOSUPPORT

EOPNOTSUPP

EPFNOSUPPORT

EAFNOSUPPORT

EADDRINUSE

EADDRNOTAVAIL

ENETDOWN

ENETUNREACH

ENETRESET

ECONNABORTED

ECONNRESET

ENOBUFS

EISCONN

ENOTCONN

ESHUTDOWN

ETOOMANYREFS

ETIMEDOUT

ECONNREFUSED

EHOSTDOWN

EHOSTUNREACH

EALREADY

EINPROGRESS

ESTALE

EUCLEAN

ENOTNAM

ENAVAIL

EISNAM

EREMOTEIO

EDQUOT

ENOMEDIUM

EMEDIUMTYPE

ECANCELED

ENOKEY

EKEYEXPIRED

EKEYREVOKED

EKEYREJECTED

EOWNERDEAD

ENOTRECOVERABLE

ERFKILL

EHWPOISON

Implementations

👎 Deprecated since 0.22.0:

It’s a no-op now; just delete it.

Convert this Error to an Errno.

Example
let e = Error::from(Errno::EPERM);
assert_eq!(Some(Errno::EPERM), e.as_errno());
👎 Deprecated since 0.22.0:

It’s a no-op now; just delete it.

Create a nix Error from a given errno

👎 Deprecated since 0.22.0:

Use Errno::EINVAL instead

Create a new invalid argument error (EINVAL)

Returns Ok(value) if it does not contain the sentinel value. This should not be used when -1 is not the errno sentinel value.

👎 Deprecated since 0.22.0:

Use Errno::… instead

Backwards compatibility hack for Nix <= 0.21.0 users

In older versions of Nix, Error::Sys was an enum variant. Now it’s a function, which is compatible with most of the former use cases of the enum variant. But you should use Error(Errno::...) instead.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Formats the value using the given formatter. Read more

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

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

Returns a stack backtrace, if available, of where this error occurred. Read more

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

Converts to this type from the input type.

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

The type returned in the event of a conversion error.

Performs the conversion.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Converts a reference to Self into a dynamic trait object of Fail.

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

Use this to cast from one trait object type to another. Read more

Use this to upcast a trait to one of its supertraits. Read more

Use this to cast from one trait object type to another. This method is more customizable than the dyn_cast method. Here you can also specify the “source” trait from which the cast is defined. This can for example allow using casts from a supertrait of the current trait object. Read more

Use this to cast from one trait object type to another. With this method the type parameter is a config type that uniquely specifies which cast should be preformed. Read more

Compare self to key and return true if they are equal.

Returns the “name” of the error. Read more

Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors. Read more

Returns a reference to the Backtrace carried by this failure, if it carries one. Read more

Provides context for this failure. Read more

Wraps this failure in a compatibility wrapper that implements std::error::Error. Read more

Returns the argument unchanged.

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Should always be Self

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

Converts the given value to a String. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more