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BytesResource

Struct BytesResource 

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pub struct BytesResource { /* private fields */ }
Expand description

A checked range of a CPU allocation. Clones share the allocation and its borrow registry, not independently mutable slices.

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impl BytesResource

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pub fn get_write_ptr_and_length(&self) -> (*mut u8, usize)

Returns a raw pointer and the checked range length for a kernel/FFI call.

This does not acquire a safe-access guard. To dereference the pointer, the caller must keep this resource (or an allocation-owning lease) alive, enforce initialization/bounds, and synchronize kernel accesses with all host guards and other raw accesses. Safe host code should use read/write.

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pub fn try_write(&self) -> Result<BytesWriteGuard, BytesAccessError>

Try to acquire an exclusive range without waiting or spinning on readers.

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pub fn write(&self) -> BytesWriteGuard

Acquire an exclusive range, panicking on conflicting live access. Use try_write to handle conflicts as ordinary errors.

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pub fn try_read(&self) -> Result<BytesReadGuard, BytesAccessError>

Try to acquire a shared range without waiting for overlapping writers.

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pub fn read(&self) -> BytesReadGuard

Acquire a shared range, panicking on conflicting live access. Use try_read to handle conflicts as ordinary errors.

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impl Clone for BytesResource

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BytesResource

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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<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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

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.
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impl<T> TuneInputs for T
where T: Clone + Send + Sync + 'static,

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type At<'a> = T

The concrete input type at lifetime 'a.