Struct linux_errnos::linux::generic::Errno

#[repr(transparent)]
pub struct Errno(_);

Available on (Linux or Android) and (x86 or x86-64 or ARM or AArch64), or (target_arch="hexagon" or s390x or M68k or RISC-V RV32 or RISC-V RV64 or LoongArch LA64) and Linux, or crate feature aarch64, or crate feature arc, or crate feature arm, or crate feature arm64, or crate feature csky, or crate feature generic, or crate feature hexagon, or crate feature ia64, or crate feature loongarch, or crate feature loongarch64, or crate feature m68k, or crate feature microblaze, or crate feature nios2, or crate feature openrisc, or crate feature riscv, or crate feature riscv32, or crate feature riscv64, or crate feature s390, or crate feature s390x, or crate feature sh, or crate feature um, or crate feature x86, or crate feature x86_64, or crate feature xtensa only.

Error number representation.

Implementations

impl Errno

pub fn new(num: i32) -> Self

Returns a new Errno from the given integer.

pub fn into_raw(self) -> i32

Converts Errno into the under underlining integer.

pub fn is_valid(&self) -> bool

Returns true if the error code is in valid range (lower than 4096)

pub fn from_ret(value: usize) -> Result<usize, Errno>

Returns a new Errno from a syscall’s result.

pub fn name(&self) -> Option<&'static str>

Returns the name of the error if it’s known. Generally the name of the constant.

pub fn description(&self) -> Option<&'static str>

Returns a description of the error if it’s known.

pub fn from_io_error(err: Error) -> Option<Self>

Available on crate feature std only.

Returns a new Errno if the given error is generated from a system error. None otherwise.

pub fn iter() -> ErrnoIter

Available on crate feature iter only.

Returns an iterator ErrnoIter over all the known error numbers.

impl Errno

pub const EPERM: Self = _

Operation not permitted

pub const ENOENT: Self = _

No such file or directory

pub const ESRCH: Self = _

No such process

pub const EINTR: Self = _

Interrupted system call

pub const EIO: Self = _

I/O error

pub const ENXIO: Self = _

No such device or address

pub const E2BIG: Self = _

Argument list too long

pub const ENOEXEC: Self = _

Exec format error

pub const EBADF: Self = _

Bad file number

pub const ECHILD: Self = _

No child processes

pub const EAGAIN: Self = _

Try again

pub const ENOMEM: Self = _

Out of memory

pub const EACCES: Self = _

Permission denied

pub const EFAULT: Self = _

Bad address

pub const ENOTBLK: Self = _

Block device required

pub const EBUSY: Self = _

Device or resource busy

pub const EEXIST: Self = _

File exists

pub const EXDEV: Self = _

Cross-device link

pub const ENODEV: Self = _

No such device

pub const ENOTDIR: Self = _

Not a directory

pub const EISDIR: Self = _

Is a directory

pub const EINVAL: Self = _

Invalid argument

pub const ENFILE: Self = _

File table overflow

pub const EMFILE: Self = _

Too many open files

pub const ENOTTY: Self = _

Not a typewriter

pub const ETXTBSY: Self = _

Text file busy

pub const EFBIG: Self = _

File too large

pub const ENOSPC: Self = _

No space left on device

pub const ESPIPE: Self = _

Illegal seek

pub const EROFS: Self = _

Read-only file system

pub const EMLINK: Self = _

Too many links

pub const EPIPE: Self = _

Broken pipe

pub const EDOM: Self = _

Math argument out of domain of func

pub const ERANGE: Self = _

Math result not representable

pub const EDEADLK: Self = _

Resource deadlock would occur

pub const ENAMETOOLONG: Self = _

File name too long

pub const ENOLCK: Self = _

No record locks available

pub const ENOSYS: Self = _

Invalid system call number

pub const ENOTEMPTY: Self = _

Directory not empty

pub const ELOOP: Self = _

Too many symbolic links encountered

pub const ENOMSG: Self = _

No message of desired type

pub const EIDRM: Self = _

Identifier removed

pub const ECHRNG: Self = _

Channel number out of range

pub const EL2NSYNC: Self = _

Level 2 not synchronized

pub const EL3HLT: Self = _

Level 3 halted

pub const EL3RST: Self = _

Level 3 reset

pub const ELNRNG: Self = _

Link number out of range

pub const EUNATCH: Self = _

Protocol driver not attached

pub const ENOCSI: Self = _

No CSI structure available

pub const EL2HLT: Self = _

Level 2 halted

pub const EBADE: Self = _

Invalid exchange

pub const EBADR: Self = _

Invalid request descriptor

pub const EXFULL: Self = _

Exchange full

pub const ENOANO: Self = _

No anode

pub const EBADRQC: Self = _

Invalid request code

pub const EBADSLT: Self = _

Invalid slot

pub const EBFONT: Self = _

Bad font file format

pub const ENOSTR: Self = _

Device not a stream

pub const ENODATA: Self = _

No data available

pub const ETIME: Self = _

Timer expired

pub const ENOSR: Self = _

Out of streams resources

pub const ENONET: Self = _

Machine is not on the network

pub const ENOPKG: Self = _

Package not installed

pub const EREMOTE: Self = _

Object is remote

pub const ENOLINK: Self = _

Link has been severed

pub const EADV: Self = _

Advertise error

pub const ESRMNT: Self = _

Srmount error

pub const ECOMM: Self = _

Communication error on send

pub const EPROTO: Self = _

Protocol error

pub const EMULTIHOP: Self = _

Multihop attempted

pub const EDOTDOT: Self = _

RFS specific error

pub const EBADMSG: Self = _

Not a data message

pub const EOVERFLOW: Self = _

Value too large for defined data type

pub const ENOTUNIQ: Self = _

Name not unique on network

pub const EBADFD: Self = _

File descriptor in bad state

pub const EREMCHG: Self = _

Remote address changed

pub const ELIBACC: Self = _

Can not access a needed shared library

pub const ELIBBAD: Self = _

Accessing a corrupted shared library

pub const ELIBSCN: Self = _

.lib section in a.out corrupted

pub const ELIBMAX: Self = _

Attempting to link in too many shared libraries

pub const ELIBEXEC: Self = _

Cannot exec a shared library directly

pub const EILSEQ: Self = _

Illegal byte sequence

pub const ERESTART: Self = _

Interrupted system call should be restarted

pub const ESTRPIPE: Self = _

Streams pipe error

pub const EUSERS: Self = _

Too many users

pub const ENOTSOCK: Self = _

Socket operation on non-socket

pub const EDESTADDRREQ: Self = _

Destination address required

pub const EMSGSIZE: Self = _

Message too long

pub const EPROTOTYPE: Self = _

Protocol wrong type for socket

pub const ENOPROTOOPT: Self = _

Protocol not available

pub const EPROTONOSUPPORT: Self = _

Protocol not supported

pub const ESOCKTNOSUPPORT: Self = _

Socket type not supported

pub const EOPNOTSUPP: Self = _

Operation not supported on transport endpoint

pub const EPFNOSUPPORT: Self = _

Protocol family not supported

pub const EAFNOSUPPORT: Self = _

Address family not supported by protocol

pub const EADDRINUSE: Self = _

Address already in use

pub const EADDRNOTAVAIL: Self = _

Cannot assign requested address

pub const ENETDOWN: Self = _

Network is down

pub const ENETUNREACH: Self = _

Network is unreachable

pub const ENETRESET: Self = _

Network dropped connection because of reset

pub const ECONNABORTED: Self = _

Software caused connection abort

pub const ECONNRESET: Self = _

Connection reset by peer

pub const ENOBUFS: Self = _

No buffer space available

pub const EISCONN: Self = _

Transport endpoint is already connected

pub const ENOTCONN: Self = _

Transport endpoint is not connected

pub const ESHUTDOWN: Self = _

Cannot send after transport endpoint shutdown

pub const ETOOMANYREFS: Self = _

Too many references: cannot splice

pub const ETIMEDOUT: Self = _

Connection timed out

pub const ECONNREFUSED: Self = _

Connection refused

pub const EHOSTDOWN: Self = _

Host is down

pub const EHOSTUNREACH: Self = _

No route to host

pub const EALREADY: Self = _

Operation already in progress

pub const EINPROGRESS: Self = _

Operation now in progress

pub const ESTALE: Self = _

Stale file handle

pub const EUCLEAN: Self = _

Structure needs cleaning

pub const ENOTNAM: Self = _

Not a XENIX named type file

pub const ENAVAIL: Self = _

No XENIX semaphores available

pub const EISNAM: Self = _

Is a named type file

pub const EREMOTEIO: Self = _

Remote I/O error

pub const EDQUOT: Self = _

Quota exceeded

pub const ENOMEDIUM: Self = _

No medium found

pub const EMEDIUMTYPE: Self = _

Wrong medium type

pub const ECANCELED: Self = _

Operation Canceled

pub const ENOKEY: Self = _

Required key not available

pub const EKEYEXPIRED: Self = _

Key has expired

pub const EKEYREVOKED: Self = _

Key has been revoked

pub const EKEYREJECTED: Self = _

Key was rejected by service

pub const EOWNERDEAD: Self = _

Owner died

pub const ENOTRECOVERABLE: Self = _

State not recoverable

pub const ERFKILL: Self = _

Operation not possible due to RF-kill

pub const EHWPOISON: Self = _

Memory page has hardware error

pub const ERESTARTSYS: Self = _

Restart syscall

pub const ERESTARTNOINTR: Self = _

Restart if no interrupt

pub const ERESTARTNOHAND: Self = _

restart if no handler..

pub const ENOIOCTLCMD: Self = _

No ioctl command

pub const ERESTART_RESTARTBLOCK: Self = _

restart by calling sys_restart_syscall

pub const EPROBE_DEFER: Self = _

Driver requests probe retry

pub const EOPENSTALE: Self = _

open found a stale dentry

pub const ENOPARAM: Self = _

Parameter not supported

pub const EBADHANDLE: Self = _

Illegal NFS file handle

pub const ENOTSYNC: Self = _

Update synchronization mismatch

pub const EBADCOOKIE: Self = _

Cookie is stale

pub const ENOTSUPP: Self = _

Operation is not supported

pub const ETOOSMALL: Self = _

Buffer or request is too small

pub const ESERVERFAULT: Self = _

An untranslatable error occurred

pub const EBADTYPE: Self = _

Type not supported by server

pub const EJUKEBOX: Self = _

Request initiated, but will not complete before timeout

pub const EIOCBQUEUED: Self = _

iocb queued, will get completion event

pub const ERECALLCONFLICT: Self = _

conflict with recalled state

pub const ENOGRACE: Self = _

NFS file lock reclaim refused

pub const EDEADLOCK: Self = Self::EDEADLK

Alias for Self::EDEADLK

pub const EWOULDBLOCK: Self = Self::EAGAIN

Alias for Self::EAGAIN

pub const MIN: i32 = 1i32

pub const MAX: i32 = 531i32

impl Errno

pub fn last_os_error() -> Self

Available on (Linux or Android) and (x86 or x86-64 or ARM or AArch64), or (target_arch="hexagon" or s390x or PowerPC or PowerPC-64 or MIPS or MIPS-64 or M68k or RISC-V RV32 or RISC-V RV64 or target_arch="sparc" or SPARC64 or LoongArch LA64) and Linux only.

Returns a new Errno from last OS error.

Trait Implementations

impl Clone for Errno

fn clone(&self) -> Errno

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Errno

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

Formats the value using the given formatter.

impl Display for Errno

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

Formats the value using the given formatter.

impl Error for Errno

Available on crate feature std only.

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

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, demand: &mut Demand<'a>)

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

Provides type based access to context intended for error reports.

impl Error for Errno

Available on crate feature no_std_io-compat only.

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

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

impl From<Errno> for Error

Available on crate feature std only.

fn from(value: Errno) -> Self

Converts to this type from the input type.

impl From<Errno> for Error

Available on crate feature no_std_io-compat only.

fn from(value: Errno) -> Self

Converts to this type from the input type.

impl Hash for Errno

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given [Hasher].

impl Ord for Errno

fn cmp(&self, other: &Errno) -> Ordering

This method returns an [Ordering] between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<Errno> for Errno

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<Errno> for Errno

fn partial_cmp(&self, other: &Errno) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Errno

impl Eq for Errno

impl StructuralEq for Errno

impl StructuralPartialEq for Errno