Struct EventTime 

pub struct EventTime {
    pub unix_nanos: u128,
    pub monotonic_nanos: u128,
    pub supervisor_uptime_ms: u64,
    pub generation: Generation,
    pub attempt: Attempt,
}

Time data attached to a lifecycle event.

Fields

unix_nanos: u128

Wall-clock time as nanoseconds since the Unix epoch.

monotonic_nanos: u128

Monotonic time source as nanoseconds supplied by the runtime.

supervisor_uptime_ms: u64

Supervisor uptime in milliseconds.

generation: Generation

Child generation related to the event.

attempt: Attempt

Child attempt related to the event.

Implementations

impl EventTime

pub fn from_parts( monotonic_nanos: u128, supervisor_uptime_ms: u64, generation: Generation, attempt: Attempt, ) -> Self

Captures wall-clock timing and caller-supplied monotonic timing.

Arguments

• monotonic_nanos: Runtime monotonic clock value in nanoseconds.
• supervisor_uptime_ms: Supervisor uptime in milliseconds.
• generation: Child generation for this lifecycle fact.
• attempt: Child attempt for this lifecycle fact.

Returns

Returns an EventTime value.

Examples

let time = rust_supervisor::event::time::EventTime::from_parts(
    10,
    2,
    rust_supervisor::id::types::Generation::initial(),
    rust_supervisor::id::types::Attempt::first(),
);
assert_eq!(time.monotonic_nanos, 10);

pub fn deterministic( unix_nanos: u128, monotonic_nanos: u128, supervisor_uptime_ms: u64, generation: Generation, attempt: Attempt, ) -> Self

Creates deterministic event time for tests and replay.

Arguments

• unix_nanos: Wall-clock timestamp in nanoseconds.
• monotonic_nanos: Monotonic timestamp in nanoseconds.
• supervisor_uptime_ms: Supervisor uptime in milliseconds.
• generation: Child generation for this event.
• attempt: Child attempt for this event.

Returns

Returns an EventTime value with exact caller-provided fields.

Examples found in repository

examples/diagnostic_replay.rs (lines 209-221)

fn event(
    // Receive the event sequence number.
    sequence: u64,
    // Receive the child identifier.
    child_id: ChildId,
    // Receive the child display name.
    child_name: &str,
    // Receive the event payload.
    what: What,
    // Receive the optional policy decision.
    policy: Option<PolicyDecision>,
    // Return the built supervisor event.
) -> SupervisorEvent {
    // Build the event sequence value.
    let sequence_value = EventSequence::new(sequence);
    // Build the base event envelope.
    let event = SupervisorEvent::new(
        // Build the event time wrapper.
        When::new(EventTime::deterministic(
            // Set deterministic wall-clock time.
            sequence as u128,
            // Set deterministic monotonic time.
            sequence as u128,
            // Set deterministic uptime.
            sequence,
            // Set the initial child generation.
            Generation::initial(),
            // Set the first attempt.
            Attempt::first(),
            // Finish deterministic event time.
        )),
        // Build the event location.
        Where::new(SupervisorPath::root().join(&child_id.value)).with_child(child_id, child_name),
        // Attach the payload.
        what,
        // Attach the sequence.
        sequence_value,
        // Attach a deterministic correlation identifier.
        CorrelationId::from_uuid(Uuid::nil()),
        // Attach the configuration version.
        1,
        // Finish the base event envelope.
    );

    // Attach policy data when it exists.
    match policy {
        // Attach the provided policy decision.
        Some(policy) => event.with_policy(policy),
        // Return the event without policy data.
        None => event,
        // Finish policy attachment.
    }
    // Finish the deterministic event builder.
}

Trait Implementations

impl Clone for EventTime

fn clone(&self) -> EventTime

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EventTime

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EventTime

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for EventTime

fn eq(&self, other: &EventTime) -> 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 Serialize for EventTime

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 EventTime

impl Eq for EventTime

impl StructuralPartialEq for EventTime