Struct devices::virtio::queue::packed_descriptor_chain::PackedDesc
source · #[repr(C)]pub struct PackedDesc {
pub addr: Le64,
pub len: Le32,
pub id: Le16,
pub flags: Le16,
}
Expand description
A packed virtio packed queue descriptor (struct pvirtq_desc
in the spec).
Fields§
§addr: Le64
Guest address of memory buffer address
len: Le32
Memory buffer length in bytes
id: Le16
Buffer ID
flags: Le16
The flags depending on descriptor type
Implementations§
Trait Implementations§
source§impl Clone for PackedDesc
impl Clone for PackedDesc
source§fn clone(&self) -> PackedDesc
fn clone(&self) -> PackedDesc
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for PackedDesc
impl Debug for PackedDesc
source§impl FromBytes for PackedDesc
impl FromBytes for PackedDesc
§fn ref_from_bytes(
source: &[u8],
) -> Result<&Self, ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>where
Self: KnownLayout + Immutable,
fn ref_from_bytes(
source: &[u8],
) -> Result<&Self, ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>where
Self: KnownLayout + Immutable,
§fn ref_from_prefix(
source: &[u8],
) -> Result<(&Self, &[u8]), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>where
Self: KnownLayout + Immutable,
fn ref_from_prefix(
source: &[u8],
) -> Result<(&Self, &[u8]), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>where
Self: KnownLayout + Immutable,
§fn ref_from_suffix(
source: &[u8],
) -> Result<(&[u8], &Self), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>where
Self: Immutable + KnownLayout,
fn ref_from_suffix(
source: &[u8],
) -> Result<(&[u8], &Self), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, Infallible>>where
Self: Immutable + KnownLayout,
Interprets the suffix of the given bytes as a
&Self
. Read more§fn mut_from_bytes(
source: &mut [u8],
) -> Result<&mut Self, ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>where
Self: IntoBytes + KnownLayout,
fn mut_from_bytes(
source: &mut [u8],
) -> Result<&mut Self, ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>where
Self: IntoBytes + KnownLayout,
§fn mut_from_prefix(
source: &mut [u8],
) -> Result<(&mut Self, &mut [u8]), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>where
Self: IntoBytes + KnownLayout,
fn mut_from_prefix(
source: &mut [u8],
) -> Result<(&mut Self, &mut [u8]), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>where
Self: IntoBytes + KnownLayout,
§fn mut_from_suffix(
source: &mut [u8],
) -> Result<(&mut [u8], &mut Self), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>where
Self: IntoBytes + KnownLayout,
fn mut_from_suffix(
source: &mut [u8],
) -> Result<(&mut [u8], &mut Self), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, Infallible>>where
Self: IntoBytes + KnownLayout,
source§impl FromZeros for PackedDesc
impl FromZeros for PackedDesc
source§impl IntoBytes for PackedDesc
impl IntoBytes for PackedDesc
§fn as_mut_bytes(&mut self) -> &mut [u8] ⓘwhere
Self: FromBytes,
fn as_mut_bytes(&mut self) -> &mut [u8] ⓘwhere
Self: FromBytes,
Gets the bytes of this value mutably. Read more
§fn write_to(&self, dst: &mut [u8]) -> Result<(), SizeError<&Self, &mut [u8]>>where
Self: Immutable,
fn write_to(&self, dst: &mut [u8]) -> Result<(), SizeError<&Self, &mut [u8]>>where
Self: Immutable,
source§impl KnownLayout for PackedDescwhere
Le16: KnownLayout,
impl KnownLayout for PackedDescwhere
Le16: KnownLayout,
§type PointerMetadata = <Le16 as KnownLayout>::PointerMetadata
type PointerMetadata = <Le16 as KnownLayout>::PointerMetadata
The type of metadata stored in a pointer to
Self
. Read moresource§impl TryFromBytes for PackedDesc
impl TryFromBytes for PackedDesc
§fn try_ref_from_bytes(
source: &[u8],
) -> Result<&Self, ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: KnownLayout + Immutable,
fn try_ref_from_bytes(
source: &[u8],
) -> Result<&Self, ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: KnownLayout + Immutable,
§fn try_ref_from_prefix(
source: &[u8],
) -> Result<(&Self, &[u8]), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: KnownLayout + Immutable,
fn try_ref_from_prefix(
source: &[u8],
) -> Result<(&Self, &[u8]), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: KnownLayout + Immutable,
§fn try_ref_from_suffix(
source: &[u8],
) -> Result<(&[u8], &Self), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: KnownLayout + Immutable,
fn try_ref_from_suffix(
source: &[u8],
) -> Result<(&[u8], &Self), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: KnownLayout + Immutable,
§fn try_mut_from_bytes(
bytes: &mut [u8],
) -> Result<&mut Self, ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>where
Self: KnownLayout,
fn try_mut_from_bytes(
bytes: &mut [u8],
) -> Result<&mut Self, ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>where
Self: KnownLayout,
§fn try_mut_from_prefix(
source: &mut [u8],
) -> Result<(&mut Self, &mut [u8]), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>where
Self: KnownLayout,
fn try_mut_from_prefix(
source: &mut [u8],
) -> Result<(&mut Self, &mut [u8]), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>where
Self: KnownLayout,
§fn try_mut_from_suffix(
source: &mut [u8],
) -> Result<(&mut [u8], &mut Self), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>where
Self: KnownLayout,
fn try_mut_from_suffix(
source: &mut [u8],
) -> Result<(&mut [u8], &mut Self), ConvertError<AlignmentError<&mut [u8], Self>, SizeError<&mut [u8], Self>, ValidityError<&mut [u8], Self>>>where
Self: KnownLayout,
§fn try_read_from_bytes(
source: &[u8],
) -> Result<Self, ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: Sized,
fn try_read_from_bytes(
source: &[u8],
) -> Result<Self, ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: Sized,
§fn try_read_from_prefix(
source: &[u8],
) -> Result<(Self, &[u8]), ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: Sized,
fn try_read_from_prefix(
source: &[u8],
) -> Result<(Self, &[u8]), ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: Sized,
§fn try_read_from_suffix(
source: &[u8],
) -> Result<(&[u8], Self), ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: Sized,
fn try_read_from_suffix(
source: &[u8],
) -> Result<(&[u8], Self), ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>where
Self: Sized,
impl Copy for PackedDesc
impl Immutable for PackedDesc
Auto Trait Implementations§
impl Freeze for PackedDesc
impl RefUnwindSafe for PackedDesc
impl Send for PackedDesc
impl Sync for PackedDesc
impl Unpin for PackedDesc
impl UnwindSafe for PackedDesc
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Copy,
impl<T> CloneToUninit for Twhere
T: Copy,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.