Enum KVStatus 

#[repr(u32)]
pub enum KVStatus {
    UNUSED = 0,
    PRE_WRITE = 1,
    Write = 2,
    PRE_DELETE = 3,
    DELETED = 4,
    ERR_HDR = 5,
}

键值对状态枚举

表示KV在数据库中的生命周期状态，用于跟踪键值对的操作历史和当前状态

Variants

UNUSED = 0

未使用状态，初始创建但未被操作

PRE_WRITE = 1

预写入状态，准备写入但尚未完成

Write = 2

已写入状态，数据已成功写入

PRE_DELETE = 3

预删除状态，准备删除但尚未完成

DELETED = 4

已删除状态，数据已标记为删除

ERR_HDR = 5

头部错误状态，键值对头部信息损坏

Trait Implementations

impl Clone for KVStatus

fn clone(&self) -> KVStatus

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for KVStatus

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

Formats the value using the given formatter.

impl From<u32> for KVStatus

fn from(value: fdb_kv_status) -> Self

从底层C类型转换为Rust枚举类型

安全性

依赖于C库定义的状态值与Rust枚举变体的数值匹配

impl PartialEq for KVStatus

fn eq(&self, other: &KVStatus) -> 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 Copy for KVStatus

impl Eq for KVStatus

impl StructuralPartialEq for KVStatus