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NumaAlignedBuffer

Struct NumaAlignedBuffer 

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pub struct NumaAlignedBuffer { /* private fields */ }

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impl NumaAlignedBuffer

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pub fn new(capacity: usize, numa_node: usize) -> Result<Self>

Create a new NUMA-aligned buffer.

§Errors

Returns an error if NUMA allocation fails.

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pub fn numa_node(&self) -> usize

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pub fn as_ptr(&self) -> *const u8

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pub fn as_mut_ptr(&mut self) -> *mut u8

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pub fn as_slice(&self) -> &[u8]

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pub fn as_mut_slice(&mut self) -> &mut [u8]

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pub fn len(&self) -> usize

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pub fn is_empty(&self) -> bool

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pub fn capacity(&self) -> usize

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pub fn set_len(&mut self, len: usize)

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

Write data at the specified offset.

§Errors

Returns an error if write exceeds buffer capacity.

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pub fn clear(&mut self)

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pub fn mlock(&self) -> Result<()>

Lock the buffer in memory using mlock to prevent page faults.

§Errors

Returns an error if mlock fails.

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pub fn prefault(&mut self)

Prefault all pages in the buffer by touching each page.

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pub fn lock_and_prefault(&mut self) -> Result<()>

Lock and prefault the buffer for zero-latency access on hot path.

§Errors

Returns an error if mlock fails.

Trait Implementations§

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impl Drop for NumaAlignedBuffer

Available on Linux only.
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fn drop(&mut self)

Executes the destructor for this type. Read more

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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<U> 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> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.