Struct sanakirja_core::CowPage

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#[repr(C)]
pub struct CowPage { pub data: *mut u8, pub offset: u64, }
Expand description

Representation of a mutable or shared page. This is an owned page (like Vec in Rust’s std), but we do not know whether we can mutate it or not.

The least-significant bit of the first byte of each page is 1 if and only if the page was allocated by the current transaction (and hence isn’t visible to any other transaction, meaning we can write on it).

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§data: *mut u8§offset: u64

Implementations§

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impl CowPage

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pub fn as_page(&self) -> Page<'_>

Borrows the page.

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impl CowPage

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pub fn is_dirty(&self) -> bool

Checks the dirty bit of a page.

Trait Implementations§

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impl Debug for CowPage

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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 Send for CowPage

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impl Sync for CowPage

Auto Trait Implementations§

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<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, 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.