Enum BlktraceError 

pub enum BlktraceError {
    DebugfsUnsupported,
    MountDebugfs(Error),
    Setup(Error),
    Start(Error),
    Stop(Error),
    Teardown(Error),
    FlushBuffers(Error),
    MagicMismatch,
    InvalidBlockName,
    ReadDropped(Error),
    ParseDropped,
    ThreadPanicked,
    Io(Error),
}

Errors returned by this crate.

Variants

DebugfsUnsupported

The kernel has no debugfs support, which blktrace requires.

MountDebugfs(Error)

Mounting debugfs failed.

Setup(Error)

The BLKTRACESETUP ioctl failed.

Start(Error)

The BLKTRACESTART ioctl failed.

Stop(Error)

The BLKTRACESTOP ioctl failed.

Teardown(Error)

The BLKTRACETEARDOWN ioctl failed.

FlushBuffers(Error)

The BLKFLSBUF ioctl failed.

MagicMismatch

A trace record’s magic number did not match the kernel UAPI value.

InvalidBlockName

The block name the kernel returned is not valid UTF-8.

ReadDropped(Error)

Reading the dropped-event counter failed.

ParseDropped

The dropped-event counter is not a number.

ThreadPanicked

A reader or collector thread died unexpectedly.

Io(Error)

An I/O error.

Trait Implementations

impl Debug for BlktraceError

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

Formats the value using the given formatter.

impl Display for BlktraceError

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

Formats the value using the given formatter.

impl Error for BlktraceError

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<Error> for BlktraceError

fn from(source: Error) -> Self

Converts to this type from the input type.