Enum UmemError 

pub enum UmemError {
    MmapFailed(String),
    LockFailed(String),
    NotAligned {
        actual: usize,
        expected: usize,
    },
    InsufficientSize {
        actual: usize,
        required: usize,
    },
    HugePageNotAvailable,
    AlreadyCreated,
    NotCreated,
    MunmapFailed(String),
}

UMEM 操作错误

Variants

MmapFailed(String)

mmap 失败

LockFailed(String)

内存锁定失败

NotAligned

内存地址未对齐

Fields

actual: usize

实际对齐

expected: usize

期望对齐

InsufficientSize

内存大小不足

Fields

actual: usize

实际大小

required: usize

需要大小

HugePageNotAvailable

HugePage 不可用

AlreadyCreated

UMEM 已创建

NotCreated

UMEM 未创建

MunmapFailed(String)

munmap 失败

Implementations

impl UmemError

pub fn severity(&self) -> ErrorSeverity

获取错误严重级别

Trait Implementations

impl Debug for UmemError

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

Formats the value using the given formatter.

impl Display for UmemError

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

Formats the value using the given formatter.

impl Error for UmemError

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<UmemError> for LinuxError

fn from(e: UmemError) -> Self

Converts to this type from the input type.