Enum ChunkSize

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pub enum ChunkSize {
    Fixed(usize),
    Adaptive,
    Custom(fn(u64) -> usize),
}

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Fixed(usize)

Fixed chunk size in rows

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Adaptive

Adaptive based on available memory

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Custom(fn(u64) -> usize)

Custom sizing function - cannot derive Debug/Clone with function pointer

Implementations§

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impl ChunkSize

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pub fn calculate(&self, file_size_bytes: u64) -> usize

Calculate optimal chunk size based on available memory and file size

Trait Implementations§

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impl Clone for ChunkSize

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fn clone(&self) -> ChunkSize

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 ChunkSize

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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 Default for ChunkSize

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fn default() -> ChunkSize

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

Auto Trait Implementations§

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impl UnwindSafe for ChunkSize

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 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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