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ExtensibleArrayIndexBlock

Struct ExtensibleArrayIndexBlock 

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pub struct ExtensibleArrayIndexBlock {
    pub class_id: u8,
    pub header_addr: u64,
    pub elements: Vec<u64>,
    pub dblk_addrs: Vec<u64>,
    pub sblk_addrs: Vec<u64>,
}
Expand description

Extensible array index block.

On-disk layout:

"EAIB"(4) + version=0(1) + class_id(1)
+ header_addr(sizeof_addr)
+ elements (idx_blk_elmts * raw_elmt_size bytes)
+ data_block_addresses (ndblk_addrs * sizeof_addr)
+ super_block_addresses (nsblk_addrs * sizeof_addr)
+ checksum(4)

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§class_id: u8§header_addr: u64§elements: Vec<u64>

Direct chunk addresses in the index block.

§dblk_addrs: Vec<u64>

Data block addresses.

§sblk_addrs: Vec<u64>

Super block addresses.

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impl ExtensibleArrayIndexBlock

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pub fn new( header_addr: u64, idx_blk_elmts: u8, ndblk_addrs: usize, nsblk_addrs: usize, ) -> Self

Create a new empty index block.

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pub fn encoded_size(&self, ctx: &FormatContext) -> usize

Compute the encoded size.

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pub fn encode(&self, ctx: &FormatContext) -> Vec<u8>

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pub fn decode( buf: &[u8], ctx: &FormatContext, idx_blk_elmts: usize, ndblk_addrs: usize, nsblk_addrs: usize, ) -> FormatResult<Self>

Trait Implementations§

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impl Clone for ExtensibleArrayIndexBlock

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fn clone(&self) -> ExtensibleArrayIndexBlock

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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 PartialEq for ExtensibleArrayIndexBlock

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for ExtensibleArrayIndexBlock

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> 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.