Struct MemmapArray 

pub struct MemmapArray<T: Element> { /* private fields */ }

A read-only memory-mapped array backed by a .npy file.

The array data is mapped directly from the file. No copy is made. The data remains valid as long as this struct is alive.

Implementations

impl<T: Element> MemmapArray<T>

pub fn shape(&self) -> &[usize]

Return the shape of the mapped array.

pub fn as_slice(&self) -> &[T]

Return the mapped data as a slice.

pub fn to_array(&self) -> FerrayResult<Array<T, IxDyn>>

Copy the memory-mapped data into an owned Array.

pub fn view(&self) -> ArrayView<'_, T, IxDyn>

Borrow the memory-mapped data as an ArrayView<T, IxDyn> so it can be passed directly to ferray functions that expect an &Array<_> or ArrayView<_> (#496). The view is C-contiguous row-major and lives as long as the underlying mmap.

Trait Implementations

impl<T: Element> Send for MemmapArray<T>

impl<T: Element> Sync for MemmapArray<T>