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Chunk

Enum Chunk 

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pub enum Chunk<'a> {
    Metadata(&'a [u8]),
    InlineData(&'a [u8]),
    FileBackedData {
        dirfd_index: u32,
        length: u64,
        filename: &'a [u8],
    },
}
Expand description

A chunk decoded from a splitdirfdstream.

Chunks carry either stream metadata (raw tar header/padding bytes), inline-transported file content (non-world-readable files the producer read through a privileged fd), or references to external files identified by a directory fd index and a relative filename.

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Metadata(&'a [u8])

Stream metadata: raw tar header or padding bytes embedded directly in the stream. Consumers write these verbatim into the output.

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InlineData(&'a [u8])

Inline-transported file content. The producer read these bytes through a privileged fd; the consumer decides whether to store them inline (≤ splitstream threshold) or as an external object based on data.len().

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FileBackedData

Reference to an external file relative to one of the caller-supplied directory file descriptors.

The reader does not validate filename content — callers that consume filename directly must call validate_filename or use open_beneath / reconstruct, which call it internally.

Fields

§dirfd_index: u32

Index into the dirfds array supplied to reconstruct.

§length: u64

Number of bytes to read from the file, starting at offset 0.

§filename: &'a [u8]

Relative filename within dirfds[dirfd_index].

Trait Implementations§

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impl<'a> Clone for Chunk<'a>

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fn clone(&self) -> Chunk<'a>

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<'a> Debug for Chunk<'a>

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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<'a> Eq for Chunk<'a>

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impl<'a> PartialEq for Chunk<'a>

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fn eq(&self, other: &Chunk<'a>) -> 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<'a> StructuralPartialEq for Chunk<'a>

Auto Trait Implementations§

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impl<'a> Freeze for Chunk<'a>

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impl<'a> RefUnwindSafe for Chunk<'a>

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impl<'a> Send for Chunk<'a>

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impl<'a> Sync for Chunk<'a>

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impl<'a> Unpin for Chunk<'a>

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impl<'a> UnsafeUnpin for Chunk<'a>

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impl<'a> UnwindSafe for Chunk<'a>

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> 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 = Infallible

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

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.