Struct LoadBalancingOption 

pub struct LoadBalancingOption<T: AsRef<[u8]>> { /* private fields */ }

Zero-copy wrapper around Load Balancing Option (8 bytes total: 4 header + 4 data).

Load balancing options provide priority and weight values for server selection.

Wire format (8 bytes):

0               1               2               3
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|           Length              |     Type      |D|  Reserved   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|            Priority           |            Weight             |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Implementations

impl<T: AsRef<[u8]>> LoadBalancingOption<T>

pub const LENGTH: usize = 8usize

Load balancing option wire format size in bytes (4 header + 4 data).

pub fn new_unchecked(buffer: T) -> Self

Create a LoadBalancingOption without validation.

Parameters

• buffer - The buffer containing the 8-byte option

Safety

This does not validate buffer length. Use new_checked for validation.

pub fn new_checked(buffer: T) -> Result<Self>

Create a LoadBalancingOption from a buffer with length validation.

Parameters

• buffer - The buffer containing the 8-byte option

Returns

• Ok(LoadBalancingOption) if buffer is at least 8 bytes
• Err(Error) if buffer is too short

pub fn check_len(&self) -> Result<()>

Validate that the buffer is at least 8 bytes long.

Returns

• Ok(()) if buffer meets minimum length requirement
• Err(Error) if buffer is too short

pub fn header(&self) -> OptionHeader<&[u8]>

Get a view of the option header (first 4 bytes).

Returns

OptionHeader wrapper around the header bytes

pub fn priority(&self) -> u16

Get the priority value (2 bytes at offset 4-5, network byte order).

Returns

Priority value (lower is higher priority)

pub fn weight(&self) -> u16

Get the weight value (2 bytes at offset 6-7, network byte order).

Returns

Weight value for load distribution

impl<T: AsRef<[u8]> + AsMut<[u8]>> LoadBalancingOption<T>

pub fn set_priority(&mut self, priority: u16)

Set the priority value (2 bytes at offset 4-5, network byte order).

Parameters

• priority - Priority value (lower is higher priority)

pub fn set_weight(&mut self, weight: u16)

Set the weight value (2 bytes at offset 6-7, network byte order).

Parameters

• weight - Weight value for load distribution

Trait Implementations

impl<T: Clone + AsRef<[u8]>> Clone for LoadBalancingOption<T>

fn clone(&self) -> LoadBalancingOption<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + AsRef<[u8]>> Debug for LoadBalancingOption<T>

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

Formats the value using the given formatter.

impl<T: Copy + AsRef<[u8]>> Copy for LoadBalancingOption<T>