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EntryMeta

Struct EntryMeta 

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pub struct EntryMeta {
    pub mtime_ns: Option<i128>,
    pub btime_ns: Option<i128>,
    pub mode: Option<u32>,
    pub uid: Option<u32>,
    pub gid: Option<u32>,
    pub xattrs: BTreeMap<String, Vec<u8>>,
}
Expand description

跨平台元数据。不支持的项在还原时明确报告而非静默丢弃(决策 N3)。

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§mtime_ns: Option<i128>

修改时间,Unix 纳秒。

§btime_ns: Option<i128>

创建时间,Unix 纳秒。Linux 上无法设置,还原时跳过并报告。

§mode: Option<u32>

POSIX 权限位。Windows 无对应概念,还原时跳过并报告。

§uid: Option<u32>

属主 uid / gid。跨机器无意义,默认不还原,仅记录。

§gid: Option<u32>

见 Self::uid。

§xattrs: BTreeMap<String, Vec<u8>>

扩展属性。Windows 是 ADS,语义不同,跨平台时报告。

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impl EntryMeta

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pub fn is_empty(&self) -> bool

是否完全为空——为空时可省略编码,节省索引体积。

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impl Clone for EntryMeta

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for EntryMeta

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

Formats the value using the given formatter. Read more
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impl Default for EntryMeta

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Eq for EntryMeta

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impl PartialEq for EntryMeta

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for EntryMeta

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.