Struct TcpKeepalive

pub struct TcpKeepalive(/* private fields */);

Option data for the edns-tcp-keepalive option.

The edns-tcp-keepalive option can be used to determine a time a server would like a client to keep a TCP connection open after receiving an answer. The client includes the option without a value in its query to indicate support for the option. The server then includes the option in its response, including a 16-bit value that provides the idle time in units of 100 milliseconds.

Implementations

impl TcpKeepalive

pub fn new(timeout: Option<IdleTimeout>) -> Self

Creates a new value from an optional idle timeout.

pub fn timeout(self) -> Option<IdleTimeout>

Returns the idle timeout.

pub fn parse<Octs: AsRef<[u8]>>( parser: &mut Parser<'_, Octs>, ) -> Result<Self, ParseError>

Parses an option data value from its wire format.

Trait Implementations

impl Clone for TcpKeepalive

fn clone(&self) -> TcpKeepalive

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ComposeOptData for TcpKeepalive

fn compose_len(&self) -> u16

fn compose_option<Target: OctetsBuilder + ?Sized>( &self, target: &mut Target, ) -> Result<(), Target::AppendError>

impl Debug for TcpKeepalive

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

Formats the value using the given formatter.

impl Display for TcpKeepalive

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

Formats the value using the given formatter.

impl<Octs, Name> From<TcpKeepalive> for AllOptData<Octs, Name>

fn from(value: TcpKeepalive) -> Self

Converts to this type from the input type.

impl Hash for TcpKeepalive

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl OptData for TcpKeepalive

fn code(&self) -> OptionCode

Returns the option code associated with this option.

impl Ord for TcpKeepalive

fn cmp(&self, other: &TcpKeepalive) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<'a, Octs: AsRef<[u8]>> ParseOptData<'a, Octs> for TcpKeepalive

fn parse_option( code: OptionCode, parser: &mut Parser<'a, Octs>, ) -> Result<Option<Self>, ParseError>

Parses the option code data.

impl PartialEq for TcpKeepalive

fn eq(&self, other: &TcpKeepalive) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for TcpKeepalive

fn partial_cmp(&self, other: &TcpKeepalive) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for TcpKeepalive

impl Eq for TcpKeepalive

impl StructuralPartialEq for TcpKeepalive