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RegularFile

Enum RegularFile 

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pub enum RegularFile<ObjectID: FsVerityHashValue> {
    Inline(Box<[u8]>),
    External(ObjectID, u64),
    ExternalNoVerity(ObjectID, u64),
    Sparse(u64),
}
Expand description

Represents a regular file’s content storage strategy in composefs.

Files can be stored inline for small content or externally referenced for larger files using fsverity hashing.

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Inline(Box<[u8]>)

File content stored inline as raw bytes.

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External(ObjectID, u64)

File stored externally, referenced by fsverity hash and size.

The tuple contains (fsverity hash, file size in bytes). The fsverity digest is embedded in the overlay metacopy xattr.

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ExternalNoVerity(ObjectID, u64)

Like External, but without embedding the fsverity digest in the overlay metacopy xattr. Used by the C API when the caller set a content-address payload but did not explicitly set a verified digest.

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Sparse(u64)

File with declared size but no content or external reference. Produces ChunkBased layout with null chunk indices.

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impl<ObjectID: FsVerityHashValue> RegularFile<ObjectID>

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pub fn file_size(&self) -> u64

Returns the file size in bytes.

Trait Implementations§

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impl<ObjectID: Clone + FsVerityHashValue> Clone for RegularFile<ObjectID>

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fn clone(&self) -> RegularFile<ObjectID>

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<ObjectID: Debug + FsVerityHashValue> Debug for RegularFile<ObjectID>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<ObjectID> Freeze for RegularFile<ObjectID>
where ObjectID: Freeze,

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impl<ObjectID> RefUnwindSafe for RegularFile<ObjectID>
where ObjectID: RefUnwindSafe,

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impl<ObjectID> Send for RegularFile<ObjectID>

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impl<ObjectID> Sync for RegularFile<ObjectID>

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impl<ObjectID> Unpin for RegularFile<ObjectID>

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impl<ObjectID> UnsafeUnpin for RegularFile<ObjectID>
where ObjectID: UnsafeUnpin,

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impl<ObjectID> UnwindSafe for RegularFile<ObjectID>
where ObjectID: UnwindSafe,

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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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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.