ab_core_primitives::pieces

Struct Record

#[repr(C)]
pub struct Record(/* private fields */);

Expand description

Record contained within a piece.

NOTE: This is a stack-allocated data structure and can cause stack overflow!

Implementations§

impl Record

pub const NUM_CHUNKS: usize = 32_768usize

Number of chunks within one record.

pub const NUM_S_BUCKETS: usize = 65_536usize

Number of s-buckets contained within one sector record.

Essentially we chunk records and erasure code them.

pub const SIZE: usize = 1_048_576usize

Size of a segment record, it is guaranteed to be a multiple of RecordChunk::SIZE

pub fn new_boxed() -> Box<Self>

Create boxed value without hitting stack overflow

pub fn new_zero_vec(length: usize) -> Vec<Self>

Create vector filled with zeroed records without hitting stack overflow

pub fn slice_to_repr(value: &[Self]) -> &[[[u8; 32]; 32768]]

Convenient conversion from slice of record to underlying representation for efficiency purposes.

pub fn slice_from_repr(value: &[[[u8; 32]; 32768]]) -> &[Self]

Convenient conversion from slice of underlying representation to record for efficiency purposes.

pub fn slice_mut_to_repr(value: &mut [Self]) -> &mut [[[u8; 32]; 32768]]

Convenient conversion from mutable slice of record to underlying representation for efficiency purposes.

pub fn slice_mut_from_repr(value: &mut [[[u8; 32]; 32768]]) -> &mut [Self]

Convenient conversion from mutable slice of underlying representation to record for efficiency purposes.

Trait Implementations§

impl AsMut<[u8]> for Record

fn as_mut(&mut self) -> &mut [u8] ⓘ

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<[u8]> for Record

fn as_ref(&self) -> &[u8] ⓘ

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for Record

fn clone(&self) -> Record

Returns a copy of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Record

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

Formats the value using the given formatter. Read more

impl Default for Record

fn default() -> Self

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

impl Deref for Record

type Target = [[u8; 32]; 32768]

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for Record

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl From<&[[u8; 32]; 32768]> for &Record

fn from(value: &[[u8; 32]; 32768]) -> Self

Converts to this type from the input type.

impl From<&[u8; 1048576]> for &Record

fn from(value: &[u8; 1048576]) -> Self

Converts to this type from the input type.

impl From<&Record> for &[[u8; 32]; 32768]

fn from(value: &Record) -> Self

Converts to this type from the input type.

impl From<&Record> for &[u8; 1048576]

fn from(value: &Record) -> Self

Converts to this type from the input type.

impl From<&mut [[u8; 32]; 32768]> for &mut Record

fn from(value: &mut [[u8; 32]; 32768]) -> Self

Converts to this type from the input type.

impl From<&mut [u8; 1048576]> for &mut Record

fn from(value: &mut [u8; 1048576]) -> Self

Converts to this type from the input type.

impl From<&mut Record> for &mut [[u8; 32]; 32768]

fn from(value: &mut Record) -> Self

Converts to this type from the input type.

impl From<&mut Record> for &mut [u8; 1048576]

fn from(value: &mut Record) -> Self

Converts to this type from the input type.

impl PartialEq for Record

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

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 Record

impl Eq for Record

impl StructuralPartialEq for Record

Auto Trait Implementations§

impl Freeze for Record

impl RefUnwindSafe for Record

impl Send for Record

impl Sync for Record

impl Unpin for Record

impl UnwindSafe for Record

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T, U> AsByteSlice<T> for U
where T: ToByteSlice, U: AsRef<[T]> + ?Sized,

fn as_byte_slice(&self) -> &[u8] ⓘ

impl<T, U> AsMutByteSlice<T> for U
where T: ToMutByteSlice, U: AsMut<[T]> + ?Sized,

fn as_mut_byte_slice(&mut self) -> &mut [u8] ⓘ

impl<U> AsMutSliceOf for U
where U: AsMut<[u8]> + ?Sized,

fn as_mut_slice_of<T>(&mut self) -> Result<&mut [T], Error>
where T: FromByteSlice,

impl<U> AsSliceOf for U
where U: AsRef<[u8]> + ?Sized,

fn as_slice_of<T>(&self) -> Result<&[T], Error>
where T: FromByteSlice,

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)

The target type on which the method may be called.

impl<T> ToHex for T
where T: AsRef<[u8]>,

fn encode_hex<U>(&self) -> U
where U: FromIterator<char>,

Encode the hex strict representing self into the result. Lower case letters are used (e.g. f9b4ca)

fn encode_hex_upper<U>(&self) -> U
where U: FromIterator<char>,

Encode the hex strict representing self into the result. Upper case letters are used (e.g. F9B4CA)

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> JsonSchemaMaybe for T