Enum Error 

#[non_exhaustive]
pub enum Error {
    Io(Error),
    Truncated {
        expected: u64,
    },
    InlineTooLarge {
        size: usize,
        max: usize,
    },
    UnknownChunkType(u8),
    FilenameTooLong {
        len: usize,
        max: usize,
    },
    InvalidFilename {
        reason: &'static str,
    },
    DirfdIndexOutOfRange {
        index: u32,
        count: usize,
    },
    ExternalTooShort {
        declared: u64,
        actual: u64,
    },
}

Errors that can occur while reading or writing a splitdirfdstream.

Variants (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.

Io(Error)

An underlying I/O error.

Truncated

The stream ended in the middle of a chunk.

Fields

expected: u64

How many bytes were still expected when EOF was encountered.

Semantics depend on where truncation occurred:

• Type byte: 1 if EOF arrived after 0 bytes (but that is returned as Ok(None); this only fires for 0 < n < expected).
• Inline body or FileBackedData header/name: the full declared size (i.e. the number passed to read_exact), because read_exact does not report how many bytes it successfully consumed before EOF.

InlineTooLarge

An inline chunk’s size field exceeds MAX_INLINE_CHUNK_SIZE.

Fields

size: usize

The size read from the stream.

max: usize

The maximum allowed size.

UnknownChunkType(u8)

An unrecognised chunk type byte was encountered.

FilenameTooLong

A filename exceeds MAX_FILENAME_LEN bytes.

Fields

len: usize

The length of the filename.

max: usize

The maximum allowed length.

InvalidFilename

A filename failed validation.

Fields

reason: &'static str

Human-readable description of why the filename is invalid.

DirfdIndexOutOfRange

A dirfd index in an external chunk was out of range.

Fields

index: u32

The index that was out of range.

count: usize

The number of dirfds available.

ExternalTooShort

An external file was shorter than declared in the stream.

Fields

declared: u64

The length declared in the stream.

actual: u64

The number of bytes actually read before EOF.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

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(e: Errno) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.