Struct Stratum 

pub struct Stratum(pub u8);

An 8-bit integer representing the stratum.

+--------+-----------------------------------------------------+
| Value  | Meaning                                             |
+--------+-----------------------------------------------------+
| 0      | unspecified or invalid                              |
| 1      | primary server (e.g., equipped with a GPS receiver) |
| 2-15   | secondary server (via NTP)                          |
| 16     | unsynchronized                                      |
| 17-255 | reserved                                            |
+--------+-----------------------------------------------------+

It is customary to map the stratum value 0 in received packets to MAXSTRAT in the peer variable p.stratum and to map p.stratum values of MAXSTRAT or greater to 0 in transmitted packets. This allows reference clocks, which normally appear at stratum 0, to be conveniently mitigated using the same clock selection algorithms used for external sources.

Tuple Fields

0: u8

Implementations

impl Stratum

pub const UNSPECIFIED: Self

Unspecified or invalid.

pub const PRIMARY: Self

The primary server (e.g. equipped with a GPS receiver.

pub const SECONDARY_MIN: Self

The minimum value specifying a secondary server (via NTP).

pub const SECONDARY_MAX: Self

The maximum value specifying a secondary server (via NTP).

pub const UNSYNCHRONIZED: Self

An unsynchronized stratum.

pub const MAX: Self

The maximum valid stratum value.

pub fn is_secondary(&self) -> bool

Whether or not the stratum represents a secondary server.

pub fn is_reserved(&self) -> bool

Whether or not the stratum is in the reserved range.

Trait Implementations

impl Clone for Stratum

fn clone(&self) -> Stratum

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ConstPackedSizeBytes for Stratum

const PACKED_SIZE_BYTES: usize = 1

The constant size in bytes when this type is packed for network transmission.

impl Debug for Stratum

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

Formats the value using the given formatter.

impl FromBytes for Stratum

fn from_bytes(buf: &[u8]) -> Result<(Self, usize), ParseError>

Parse from the given byte slice. Returns the parsed value and the number of bytes consumed from the front of buf.

impl Hash for Stratum

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 Ord for Stratum

fn cmp(&self, other: &Stratum) -> 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 PartialEq for Stratum

fn eq(&self, other: &Stratum) -> 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 Stratum

fn partial_cmp(&self, other: &Stratum) -> 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 ReadFromBytes for Stratum

Available on crate feature std only.

fn read_from_bytes<R: ReadBytesExt>(reader: R) -> Result<Self>

Read the command from bytes.

impl ToBytes for Stratum

fn to_bytes(&self, buf: &mut [u8]) -> Result<usize, ParseError>

Write this value into the given byte slice. Returns the number of bytes written. Fails with ParseError::BufferTooShort if buf is too short.

impl WriteToBytes for Stratum

Available on crate feature std only.

fn write_to_bytes<W: WriteBytesExt>(&self, writer: W) -> Result<()>

Write the command to bytes.

impl Copy for Stratum

impl Eq for Stratum

impl StructuralPartialEq for Stratum