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CallbackError

kernel::dma_buf::dma_fence

Enum CallbackError 

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pub enum CallbackError<T> {
    AlreadySignaled(T),
    Other(Error),
}
Expand description

Error type for fence callback registration.

Generic over T so that AlreadySignaled can return the callback to the caller, allowing it to reclaim any resources owned by the callback (e.g., a fence handle that needs to be signaled).

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AlreadySignaled(T)

The fence was already signaled. The callback is returned so the caller can extract owned resources without losing them.

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Other(Error)

Some other error occurred during registration.

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impl<T: Debug> Debug for CallbackError<T>

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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<T> From<AllocError> for CallbackError<T>

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fn from(e: AllocError) -> Self

Converts to this type from the input type.
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impl<T> From<CallbackError<T>> for Error

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fn from(err: CallbackError<T>) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<T> Freeze for CallbackError<T>
where T: Freeze,

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impl<T> RefUnwindSafe for CallbackError<T>
where T: RefUnwindSafe,

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impl<T> Send for CallbackError<T>
where T: Send,

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impl<T> Sync for CallbackError<T>
where T: Sync,

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impl<T> Unpin for CallbackError<T>
where T: Unpin,

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impl<T> UnsafeUnpin for CallbackError<T>
where T: UnsafeUnpin,

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impl<T> UnwindSafe for CallbackError<T>
where T: UnwindSafe,

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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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Init<T> for T

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fn chain<F>(self, f: F) -> ChainInit<Self, F, T, E>
where F: FnOnce(&mut T) -> Result<(), E>,

First initializes the value using self then calls the function f with the initialized value. Read more
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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<S, T> IntoSafeCast<T> for S
where T: FromSafeCast<S>,

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fn into_safe_cast(self) -> T

Convert self into a T. This operation is guaranteed to be lossless.
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impl<S, T> IntoSafeCastArch<T> for S
where T: FromSafeCastArch<S>,

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fn into_safe_cast_arch(self) -> T

Convert self into a T. This operation is guaranteed to be lossless.
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impl<T> KnownSize for T

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const MIN_SIZE: usize = const MIN_SIZE: usize = size_of::<T>();

Minimum size of this type known at compile-time.
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const MIN_ALIGN: Alignment = const MIN_ALIGN: Alignment = Alignment::of::<T>();

Minimum alignment of this type known at compile-time.
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fn size(_: *const T) -> usize

Get the size of an object of this type in bytes, with the metadata of the given pointer.
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impl<T> PinInit<T> for T

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unsafe fn __init(self, slot: *mut T) -> Result<(), !>

Initializes slot. Read more
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fn pin_chain<F>(self, f: F) -> ChainPinInit<Self, F, T, E>
where F: FnOnce(Pin<&mut T>) -> Result<(), E>,

First initializes the value using self then calls the function f with the initialized value. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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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, U, const N: u32> TryIntoBounded<T, N> for U
where T: Integer, U: TryInto<T>,

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fn try_into_bounded(self) -> Option<Bounded<T, N>>

Attempts to convert self into a Bounded using N bits. Read more
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impl<T> Writer for T
where T: Debug,

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

Formats the value using the given formatter.