Struct ExtTime 

pub struct ExtTime {
    pub sct_high: Option<u32>,
    pub sct_low: Option<u32>,
    pub ert: Option<u32>,
    pub slc: Option<u32>,
    pub pi_specific: u8,
}

A decoded EXT_TIME header extension (RFC 5651 §5.2.2, HET = 2).

Carries 0..4 32-bit time values selected by the 16-bit Use bit field. When present they appear in the fixed order SCT-High, SCT-Low, ERT, SLC; each Some value contributes one 32-bit word. The PI-specific low 8 bits of the Use field are preserved verbatim in pi_specific.

Fields

sct_high: Option<u32>

Sender Current Time, MS 32 bits (NTP seconds).

sct_low: Option<u32>

Sender Current Time, LS 32 bits (NTP fraction). If set, sct_high MUST also be set.

ert: Option<u32>

Expected Residual Time, seconds.

slc: Option<u32>

Session Last Changed time, seconds.

pi_specific: u8

PI-specific low 8 bits of the Use field (out of scope of RFC 5651).

Implementations

impl ExtTime

pub fn use_field(&self) -> u16

Build the 16-bit Use field from the present values + PI-specific byte.

pub fn serialized_len(&self) -> usize

Total serialized length in bytes (first word + 4 bytes per value).

pub fn parse(content: &[u8]) -> Result<Self>

Decode an EXT_TIME from the content of a HeaderExtension whose HET is HET_EXT_TIME (the content is everything after HET+HEL: the 2-byte Use field followed by the time values).

pub fn to_content(&self) -> Vec<u8>

Encode the EXT_TIME content (Use field + present time values) into a freshly allocated buffer suitable for HeaderExtension::content.

pub fn to_extension<'a>(&self, scratch: &'a mut Vec<u8>) -> HeaderExtension<'a>

Build a generic HeaderExtension (HET = 2) carrying this EXT_TIME, borrowing from scratch (which must outlive the returned extension).

Trait Implementations

impl Clone for ExtTime

fn clone(&self) -> ExtTime

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ExtTime

impl Debug for ExtTime

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

Formats the value using the given formatter.

impl Default for ExtTime

fn default() -> ExtTime

Returns the “default value” for a type.

impl Eq for ExtTime

impl PartialEq for ExtTime

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ExtTime

Available on crate feature serde only.

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ExtTime