Struct btrfs_no_std::ExtentDataRef

#[repr(C, packed)]
pub struct ExtentDataRef {
    pub root: U64<LE>,
    pub objectid: U64<LE>,
    pub offset: U64<LE>,
    pub count: U32<LE>,
}

Contains an indirect back reference for a file data extent.

Immediately follows an ExtentInlineRef. See that documentation for more details.

Fields

root: U64<LE>

The object ID for the file tree that references this extent.

objectid: U64<LE>

The object ID of the inode that contains the extent data that references this extent.

offset: U64<LE>

The offset within the file that corresponds to this extent.

count: U32<LE>

The reference count being held.

Trait Implementations

impl AsBytes for ExtentDataRef

fn as_bytes(&self) -> &[u8]

Gets the bytes of this value.

fn as_bytes_mut(&mut self) -> &mut [u8] where
    Self: FromBytes, 

Gets the bytes of this value mutably.

fn write_to<B>(&self, bytes: B) -> Option<()> where
    B: ByteSliceMut, 

Writes a copy of self to bytes.

fn write_to_prefix<B>(&self, bytes: B) -> Option<()> where
    B: ByteSliceMut, 

Writes a copy of self to the prefix of bytes.

fn write_to_suffix<B>(&self, bytes: B) -> Option<()> where
    B: ByteSliceMut, 

Writes a copy of self to the suffix of bytes.

impl Clone for ExtentDataRef

fn clone(&self) -> ExtentDataRef

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExtentDataRef

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

Formats the value using the given formatter.

impl FromBytes for ExtentDataRef

fn read_from<B>(bytes: B) -> Option<Self> where
    B: ByteSlice, 

Reads a copy of Self from bytes.

fn read_from_prefix<B>(bytes: B) -> Option<Self> where
    B: ByteSlice, 

Reads a copy of Self from the prefix of bytes.

fn read_from_suffix<B>(bytes: B) -> Option<Self> where
    B: ByteSlice, 

Reads a copy of Self from the suffix of bytes.

fn new_zeroed() -> Self

Creates an instance of Self from zeroed bytes.

impl Copy for ExtentDataRef

impl Unaligned for ExtentDataRef