Struct ZeroCopyReader

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pub struct ZeroCopyReader { /* private fields */ }

Expand description

Zero-copy file reader using memory mapping

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impl ZeroCopyReader

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pub fn new<P: AsRef<Path>>(path: P) -> Result<Self>

Create a new zero-copy reader

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pub fn map_file(&mut self) -> Result<&Mmap>

Memory-map the entire file

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pub fn read_array<T>( &mut self, shape: Vec<usize>, ) -> Result<ZeroCopyArrayView<'_, T>>
where T: 'static + Copy,

Read a zero-copy array view

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pub fn read_slice(&mut self, offset: usize, len: usize) -> Result<&[u8]>

Read a portion of the file without copying

Auto Trait Implementations§

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impl UnwindSafe for ZeroCopyReader

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> 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 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> IntoEither for T

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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

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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

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