#[repr(i32)]
#[non_exhaustive]
pub enum Errno {
Show 107 variants UnknownErrno, EPERM, ENOENT, ESRCH, EINTR, EIO, ENXIO, E2BIG, ENOEXEC, EBADF, ECHILD, EDEADLK, ENOMEM, EACCES, EFAULT, ENOTBLK, EBUSY, EEXIST, EXDEV, ENODEV, ENOTDIR, EISDIR, EINVAL, ENFILE, EMFILE, ENOTTY, ETXTBSY, EFBIG, ENOSPC, ESPIPE, EROFS, EMLINK, EPIPE, EDOM, ERANGE, EAGAIN, EINPROGRESS, EALREADY, ENOTSOCK, EDESTADDRREQ, EMSGSIZE, EPROTOTYPE, ENOPROTOOPT, EPROTONOSUPPORT, ESOCKTNOSUPPORT, ENOTSUP, EPFNOSUPPORT, EAFNOSUPPORT, EADDRINUSE, EADDRNOTAVAIL, ENETDOWN, ENETUNREACH, ENETRESET, ECONNABORTED, ECONNRESET, ENOBUFS, EISCONN, ENOTCONN, ESHUTDOWN, ETOOMANYREFS, ETIMEDOUT, ECONNREFUSED, ELOOP, ENAMETOOLONG, EHOSTDOWN, EHOSTUNREACH, ENOTEMPTY, EPROCLIM, EUSERS, EDQUOT, ESTALE, EREMOTE, EBADRPC, ERPCMISMATCH, EPROGUNAVAIL, EPROGMISMATCH, EPROCUNAVAIL, ENOLCK, ENOSYS, EFTYPE, EAUTH, ENEEDAUTH, EPWROFF, EDEVERR, EOVERFLOW, EBADEXEC, EBADARCH, ESHLIBVERS, EBADMACHO, ECANCELED, EIDRM, ENOMSG, EILSEQ, ENOATTR, EBADMSG, EMULTIHOP, ENODATA, ENOLINK, ENOSR, ENOSTR, EPROTO, ETIME, EOPNOTSUPP, ENOPOLICY, ENOTRECOVERABLE, EOWNERDEAD, EQFULL,
}

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

EDEADLK

ENOMEM

EACCES

EFAULT

ENOTBLK

EBUSY

EEXIST

EXDEV

ENODEV

ENOTDIR

EISDIR

EINVAL

ENFILE

EMFILE

ENOTTY

ETXTBSY

EFBIG

ENOSPC

ESPIPE

EROFS

EPIPE

EDOM

ERANGE

EAGAIN

EINPROGRESS

EALREADY

ENOTSOCK

EDESTADDRREQ

EMSGSIZE

EPROTOTYPE

ENOPROTOOPT

EPROTONOSUPPORT

ESOCKTNOSUPPORT

ENOTSUP

EPFNOSUPPORT

EAFNOSUPPORT

EADDRINUSE

EADDRNOTAVAIL

ENETDOWN

ENETUNREACH

ENETRESET

ECONNABORTED

ECONNRESET

ENOBUFS

EISCONN

ENOTCONN

ESHUTDOWN

ETOOMANYREFS

ETIMEDOUT

ECONNREFUSED

ELOOP

ENAMETOOLONG

EHOSTDOWN

EHOSTUNREACH

ENOTEMPTY

EPROCLIM

EUSERS

EDQUOT

ESTALE

EREMOTE

EBADRPC

ERPCMISMATCH

EPROGUNAVAIL

EPROGMISMATCH

EPROCUNAVAIL

ENOLCK

ENOSYS

EFTYPE

EAUTH

ENEEDAUTH

EPWROFF

EDEVERR

EOVERFLOW

EBADEXEC

EBADARCH

ESHLIBVERS

EBADMACHO

ECANCELED

EIDRM

ENOMSG

EILSEQ

ENOATTR

EBADMSG

EMULTIHOP

ENODATA

ENOSR

ENOSTR

EPROTO

ETIME

EOPNOTSUPP

ENOPOLICY

ENOTRECOVERABLE

EOWNERDEAD

EQFULL

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

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

Provides type based access to context intended for error reports. Read more

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

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

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

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.