Struct ExtentInlineRefFull

#[repr(C, packed(1))]
pub struct ExtentInlineRefFull {
    pub ref_type: ExtentInlineRefType,
    pub tail: ExtentInlineRefTail,
}

This type contains a union of all possible inline extent references. Using this can be helpful when an entire inline reference is read from disk to save trips to the disk but the type of the reference is not known in advance.

For the header-only version, see ExtentInlineRefHeader.

Fields

ref_type: ExtentInlineRefType

This should be equal to ExtentInlineRefType::ExtentDataRef.

tail: ExtentInlineRefTail

This field has different functions depending on the value of ref_type.

Implementations

impl ExtentInlineRefFull

pub fn offset(&self) -> Option<u64>

Returns the value of the offset field, if it is valid for the given ref_type.

pub fn extent_data_ref(&self) -> Option<ExtentDataRef>

Returns the extent data reference if the reference type is ExtentInlineRefType::ExtentDataRef.

pub fn shared_data_tail(&self) -> Option<ExtentInlineRefSharedDataTail>

Returns the shared data tail if the reference type is ExtentInlineRefType::SharedDataRef.

pub fn as_tree_block_ref(&self) -> Option<&ExtentInlineTreeBlockRef>

pub fn as_shared_block_ref(&self) -> Option<&ExtentInlineSharedBlockRef>

pub fn as_extent_data_ref(&self) -> Option<&ExtentInlineExtentDataRef>

pub fn as_shared_data_ref(&self) -> Option<&ExtentInlineSharedDataRef>

Trait Implementations

impl Clone for ExtentInlineRefFull

fn clone(&self) -> ExtentInlineRefFull

Returns a copy of the value.

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

Performs copy-assignment from source.

impl KnownLayout for ExtentInlineRefFull

where ExtentInlineRefTail: KnownLayout,

type PointerMetadata = <ExtentInlineRefTail as KnownLayout>::PointerMetadata

The type of metadata stored in a pointer to Self.

impl TryFromBytes for ExtentInlineRefFull

where ExtentInlineRefType: TryFromBytes, ExtentInlineRefTail: TryFromBytes,

fn try_ref_from_bytes( source: &[u8], ) -> Result<&Self, ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: KnownLayout + Immutable,

Attempts to interpret the given source as a &Self.

fn try_ref_from_prefix( source: &[u8], ) -> Result<(&Self, &[u8]), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: KnownLayout + Immutable,

Attempts to interpret the prefix of the given source as a &Self.

fn try_ref_from_suffix( source: &[u8], ) -> Result<(&[u8], &Self), ConvertError<AlignmentError<&[u8], Self>, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: KnownLayout + Immutable,

Attempts to interpret the suffix of the given source as a &Self.

fn try_read_from_bytes( source: &[u8], ) -> Result<Self, ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: Sized,

Attempts to read the given source as a Self.

fn try_read_from_prefix( source: &[u8], ) -> Result<(Self, &[u8]), ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: Sized,

Attempts to read a Self from the prefix of the given source.

fn try_read_from_suffix( source: &[u8], ) -> Result<(&[u8], Self), ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: Sized,

Attempts to read a Self from the suffix of the given source.

impl Copy for ExtentInlineRefFull

impl Immutable for ExtentInlineRefFull

where ExtentInlineRefType: Immutable, ExtentInlineRefTail: Immutable,

impl Unaligned for ExtentInlineRefFull