Struct FatPtr 

pub struct FatPtr { /* private fields */ }

A fat pointer to noatun materialized view storage.

Contains a start and a count.

Note, in contrast to regular rust fat pointers, the second field really must be a count, and can not be a vtable.

Implementations

impl FatPtr

pub fn from_idx_count(start: usize, count: usize) -> FatPtr

Start index, and size in bytes

pub fn from_thin_size(thin: ThinPtr, size_bytes: usize) -> FatPtr

Gives a fatptr to the size_bytes bytes starting at thin,

Trait Implementations

impl Clone for FatPtr

fn clone(&self) -> FatPtr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FatPtr

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

Formats the value using the given formatter.

impl NoatunStorable for FatPtr

fn hash_schema(hasher: &mut SchemaHasher)

Write a unique value to ‘hasher’, that uniquely identifies this data type.

fn zeroed<T: NoatunStorable>() -> T

Return an instance of T that has a memory-representation of all zeroes.

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

Shallow copy source to self, unconditionally overwriting self.

fn initialize(dest: &mut MaybeUninit<Self>, source: &Self)

Initialize ‘dest’ from source.

impl Pointer for FatPtr

fn start(self) -> usize

The offset of the first byte of the pointee

fn create<T: ?Sized>(addr: &T, buffer_start: *const u8) -> Self

Create a pointer to the given object.

fn as_generic(&self) -> GenPtr

Return a type-erased noatun pointer

fn is_null(&self) -> bool

Return true if the pointer is null

unsafe fn access<'a, T: ?Sized>(&self) -> &'a T

Return a reference to the pointee

unsafe fn access_mut<'a, T: ?Sized>(&self) -> Pin<&'a mut T>

Return a mutable reference to the pointee

unsafe fn access_ctx<'a, T: ?Sized>( &self, context: &DatabaseContextData, ) -> &'a T

Return a reference to the pointee, given an explicit context

unsafe fn access_ctx_mut<'a, T: ?Sized>( &self, context: &mut DatabaseContextData, ) -> &'a mut T

Return a mutable reference to the pointee, given an explicit context

impl Copy for FatPtr