Struct StreamId 

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

Unique identifier for a stream within the system.

Implementations

impl StreamId

pub fn new(id: u64) -> Self

pub fn from_tenant_and_local(tenant_id: TenantId, local_id: u32) -> Self

Creates stream ID from tenant ID and local stream number.

Bit Layout:

• Upper 32 bits: tenant_id (supports 4.3B tenants)
• Lower 32 bits: local_stream_id (4.3B streams per tenant)

Examples

let stream_id = StreamId::from_tenant_and_local(TenantId::from(5), 1);
assert_eq!(u64::from(stream_id), 21474836481); // (5 << 32) | 1
assert_eq!(TenantId::from_stream_id(stream_id), TenantId::from(5));

pub fn local_id(self) -> u32

Extracts local stream ID (lower 32 bits).

Examples

let stream_id = StreamId::from_tenant_and_local(TenantId::from(5), 42);
assert_eq!(stream_id.local_id(), 42);

pub fn tenant_id(self) -> TenantId

Extracts the tenant id this stream belongs to (upper 32 bits).

Convenience over TenantId::from_stream_id(stream_id) for the common id.tenant_id() == other call sites.

Examples

let stream_id = StreamId::from_tenant_and_local(TenantId::from(5), 1);
assert_eq!(stream_id.tenant_id(), TenantId::from(5));

Trait Implementations

impl Add for StreamId

fn add(self, rhs: Self) -> Self::Output

Saturating add. Fuzzers can drive kernel state to u64::MAX; the old unchecked + panicked on overflow under debug assertions. Saturation keeps the type total without producing a smaller id.

type Output = StreamId

The resulting type after applying the + operator.

impl Clone for StreamId

fn clone(&self) -> StreamId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamId

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

Formats the value using the given formatter.

impl Default for StreamId

fn default() -> StreamId

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for StreamId

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for StreamId

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

Formats the value using the given formatter.

impl From<StreamId> for u64

fn from(id: StreamId) -> Self

Converts to this type from the input type.

impl From<u64> for StreamId

fn from(value: u64) -> Self

Converts to this type from the input 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: &StreamId) -> 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 StreamId

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

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for StreamId

impl Eq for StreamId

impl StructuralPartialEq for StreamId