Enum Event 

pub enum Event {
    Timer {
        task_id: u64,
    },
    Network {
        connection_id: u64,
        operation: NetworkOperation,
    },
    Connection {
        id: u64,
        state: ConnectionStateChange,
    },
    Storage {
        file_id: u64,
        operation: StorageOperation,
    },
    Shutdown,
    ProcessRestart {
        ip: IpAddr,
    },
    ProcessGracefulShutdown {
        ip: IpAddr,
        grace_period_ms: u64,
        recovery_delay_ms: u64,
    },
    ProcessForceKill {
        ip: IpAddr,
        recovery_delay_ms: u64,
    },
}

Events that can be scheduled in the simulation.

Variants

Timer

Timer event for waking sleeping tasks

Fields

task_id: u64

The unique identifier for the task to wake.

Network

Network data operations

Fields

connection_id: u64

The connection involved

operation: NetworkOperation

The operation type

Connection

Connection state changes

Fields

id: u64

The connection or listener ID

state: ConnectionStateChange

The state change type

Storage

Storage I/O operations

Fields

file_id: u64

The file involved

operation: StorageOperation

The operation type

Shutdown

Shutdown event to wake all tasks for graceful termination

ProcessRestart

Process restart event: a rebooted process is ready to boot again.

Scheduled after a process is killed, at now + recovery_delay. The orchestrator handles this by calling the process factory and spawning a new run() task.

Fields

ip: IpAddr

The IP address of the process to restart.

ProcessGracefulShutdown

Graceful shutdown initiated for a process.

Cancels the per-process shutdown token so the process can observe ctx.shutdown().is_cancelled() and perform cleanup. A ProcessForceKill is scheduled after the grace period expires.

Fields

ip: IpAddr

The IP address of the process being gracefully shut down.

grace_period_ms: u64

Grace period in milliseconds before force-kill.

recovery_delay_ms: u64

Recovery delay in milliseconds after force-kill before restart.

ProcessForceKill

Force-kill a process after a graceful shutdown grace period.

Aborts the process task and all its connections, then schedules a ProcessRestart after a recovery delay.

Fields

ip: IpAddr

The IP address of the process to force-kill.

recovery_delay_ms: u64

Recovery delay in milliseconds before restart.

Implementations

impl Event

pub fn is_infrastructure_event(&self) -> bool

Determines if this event is purely infrastructural (not workload-related).

Infrastructure events maintain simulation state but don’t represent actual application work. These events can be safely ignored when determining if a simulation should terminate after workloads complete.

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Event

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

Formats the value using the given formatter.

impl PartialEq for Event

fn eq(&self, other: &Event) -> 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 Eq for Event

impl StructuralPartialEq for Event