Enum ProtocolError 

#[repr(u32)]
pub enum ProtocolError {
    CommandNotPermitted = 1,
    IO = 5,
    OutOfMemory = 12,
    InvalidArgument = 22,
    NoSpaceLeft = 28,
    ValueTooLarge = 75,
    CommandNotSupported = 95,
    ServerShuttingDown = 108,
}

Errors that can occur during the normal NBD transmission loop.

These errors correspond to the standard NBD error codes defined in the protocol specification. Each error maps to a specific numeric value that is sent over the wire to the client.

The error codes follow POSIX errno values where possible, as per the NBD protocol specification.

Variants

CommandNotPermitted = 1

The client is not permitted to perform the requested operation.

Corresponds to POSIX EPERM (1) and NBD_EPERM.

IO = 5

An input/output error occurred during the operation.

Corresponds to POSIX EIO (5) and NBD_EIO.

OutOfMemory = 12

The server cannot allocate sufficient memory to complete the operation.

Corresponds to POSIX ENOMEM (12) and NBD_ENOMEM.

InvalidArgument = 22

The client provided an invalid argument or request structure.

Corresponds to POSIX EINVAL (22) and NBD_EINVAL.

NoSpaceLeft = 28

There is no space left on the storage device to complete the operation.

Corresponds to POSIX ENOSPC (28) and NBD_ENOSPC.

ValueTooLarge = 75

The requested operation would cause a value to overflow.

Corresponds to POSIX EOVERFLOW (75) and NBD_EOVERFLOW.

CommandNotSupported = 95

The requested command is not supported by the server implementation.

Corresponds to POSIX ENOTSUP (95) and NBD_ENOTSUP.

ServerShuttingDown = 108

The server is in the process of shutting down and cannot process the request.

Corresponds to POSIX ESHUTDOWN (108) and NBD_ESHUTDOWN.

Trait Implementations

impl Debug for ProtocolError

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

Formats the value using the given formatter.

impl Display for ProtocolError

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

Formats the value using the given formatter.

impl Eq for ProtocolError

impl Error for ProtocolError

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<ProtocolError> for u32

fn from(v: ProtocolError) -> Self

Converts to this type from the input type.

impl PartialEq for ProtocolError

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for ProtocolError

impl TryFrom<u32> for ProtocolError

type Error = u32

The type returned in the event of a conversion error.

fn try_from(v: u32) -> Result<Self, u32>

Performs the conversion.