Enum ReadExactError 

pub enum ReadExactError {
    Read(ReadError),
    UnexpectedEof,
}

Error returned by [ProcessReader::read_exact_at].

[ProcessReader::read_exact_at] is built on top of [ProcessReader::read_at]. It repeatedly performs partial reads until the caller’s buffer is full. This error reports why that exact read could not be completed.

Variants

Read(ReadError)

An underlying call to [ProcessReader::read_at] failed before the buffer was completely filled.

The wrapped ReadError describes the strategy that failed, or the set of strategies that failed if automatic strategy selection had not yet chosen a strategy.

UnexpectedEof

The reader stopped making progress before the buffer was completely filled.

This occurs when [ProcessReader::read_at] returns Ok(0) while read_exact_at still has bytes left to read.

Trait Implementations

impl Debug for ReadExactError

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

Formats the value using the given formatter.

impl Display for ReadExactError

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

Formats the value using the given formatter.

impl Error for ReadExactError

fn source(&self) -> Option<&(dyn StdError + '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.