Struct RuntimeKernelSnapshot 

pub struct RuntimeKernelSnapshot {

    pub id: SnapshotId,
    pub version: SnapshotVersion,
    pub timestamp: Time,
    pub ready_queue_len: usize,
    pub cancel_lane_len: usize,
    pub finalize_lane_len: usize,
    pub total_tasks: usize,
    pub active_regions: usize,
    pub cancel_streak_current: usize,
    pub cancel_streak_limit: usize,
    pub outstanding_obligations: usize,
    pub obligation_leak_count: u64,
    pub pending_io_registrations: usize,
    pub active_timers: usize,
    pub worker_count: usize,
    pub workers_parked: usize,
    pub blocking_threads_active: usize,
    pub governor_enabled: bool,
    pub adaptive_cancel_enabled: bool,
    pub adaptive_epoch: u64,
    pub registered_controllers: usize,
    pub shadow_controllers: usize,
}

A point-in-time snapshot of observable runtime state for controllers.

Controllers receive this snapshot via their observe callback. They must not cache snapshots across decision boundaries — each decision must use the snapshot provided for that epoch.

Fields

id: SnapshotId

Unique identifier for this snapshot.

version: SnapshotVersion

Schema version of this snapshot.

timestamp: Time

Logical time at which this snapshot was taken.

ready_queue_len: usize

Number of tasks currently in the ready queue.

cancel_lane_len: usize

Number of tasks in the cancel lane.

finalize_lane_len: usize

Number of tasks in the finalize lane.

total_tasks: usize

Total tasks currently tracked by the runtime.

active_regions: usize

Number of active (non-closed) regions.

cancel_streak_current: usize

Current cancel-lane streak count within the active epoch.

cancel_streak_limit: usize

Configured cancel-lane max streak.

outstanding_obligations: usize

Number of outstanding (uncommitted) obligations.

obligation_leak_count: u64

Cumulative obligation leak count since runtime start.

pending_io_registrations: usize

Number of pending I/O registrations in the reactor.

active_timers: usize

Number of active timers in the timer wheel.

worker_count: usize

Number of worker threads configured.

workers_parked: usize

Number of workers currently parked (idle).

blocking_threads_active: usize

Number of active blocking pool threads.

governor_enabled: bool

Whether the Lyapunov governor is enabled.

adaptive_cancel_enabled: bool

Whether adaptive cancel-streak is enabled.

adaptive_epoch: u64

Current adaptive cancel-streak epoch number (if adaptive enabled).

registered_controllers: usize

Number of registered controllers.

shadow_controllers: usize

Number of controllers in shadow mode.

Trait Implementations

impl Clone for RuntimeKernelSnapshot

fn clone(&self) -> RuntimeKernelSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RuntimeKernelSnapshot

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RuntimeKernelSnapshot

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for RuntimeKernelSnapshot

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

where __S: Serializer,

Serialize this value into the given Serde serializer.