Struct StreamId 

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

Which incarnation of a stream name this is.

The relay draws sixteen random bytes when a stream is created and never changes them. A name can outlive its stream - a relay’s data wiped, a stream deleted and written again - and a position means nothing across that gap: position 40 of the old stream and position 40 of the new one are unrelated entries. The identity is what lets a reader tell the two apart, instead of reading on from a cursor that points into a history that no longer exists.

Implementations

impl StreamId

pub const fn from_bytes(bytes: [u8; 16]) -> Self

Wraps sixteen bytes. The relay draws them at random; anything else is for tests.

pub const fn as_bytes(&self) -> &[u8; 16]

The sixteen bytes.

Trait Implementations

impl Clone for StreamId

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StreamId

impl Debug for StreamId

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

Formats the value using the given formatter.

impl<'b, C> Decode<'b, C> for StreamId

fn decode(d: &mut Decoder<'b>, _: &mut C) -> Result<Self, DecodeError>

Decode a value using the given Decoder.

fn nil() -> Option<Self>

If possible, return a nil value of Self.

impl Display for StreamId

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

Formats the value using the given formatter.

impl<C> Encode<C> for StreamId

fn encode<W: Write>( &self, e: &mut Encoder<W>, _: &mut C, ) -> Result<(), EncodeError<W::Error>>

Encode a value of this type using the given Encoder.

fn is_nil(&self) -> bool

Is this value of Self a nil value?

impl Eq for StreamId

impl FromStr for StreamId

type Err = ParseIdError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for StreamId

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 StreamId

fn cmp(&self, other: &Self) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for StreamId

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for StreamId

fn partial_cmp(&self, other: &Self) -> 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 StructuralPartialEq for StreamId