Struct Kernel 

pub struct Kernel { /* private fields */ }

The discrete-event simulation kernel

Implementations

impl Kernel

pub fn new() -> Self

Create a new kernel starting at time 0

pub fn now(&self) -> SimTime

Get current simulation time

pub fn schedule_at(&mut self, time: SimTime, event: SimEvent) -> EventId

Schedule an event at a specific absolute time

Panics

Panics if the event time is in the past (before current time)

pub fn schedule_after(&mut self, delay: SimTime, event: SimEvent) -> EventId

Schedule an event after a delay from current time

pub fn schedule_now(&mut self, event: SimEvent) -> EventId

Schedule an event immediately (at current time)

pub fn pop_next(&mut self) -> Option<ScheduledEvent>

Pop the next event from the queue, advancing simulation time

pub fn peek_next(&self) -> Option<&ScheduledEvent>

Peek at the next event without removing it

pub fn next_event_time(&self) -> Option<SimTime>

Get the time of the next scheduled event, if any

pub fn has_events(&self) -> bool

Check if any events are pending

pub fn pending_count(&self) -> usize

Get number of pending events

pub fn events_processed(&self) -> u64

Get total events processed

pub fn cancel(&mut self, id: EventId) -> bool

Cancel an event by ID

Returns true if the event was found and removed. Note: This operation is O(n) as it requires rebuilding the heap.

pub fn clear(&mut self)

Clear all pending events

pub fn reset(&mut self)

Reset the kernel to initial state

pub fn advance_to<F>(&mut self, target_time: SimTime, handler: F) -> u64

where F: FnMut(&mut Self, ScheduledEvent),

Advance time to a specific point, processing all events up to that time

Returns the number of events processed.

Trait Implementations

impl Debug for Kernel

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

Formats the value using the given formatter.

impl Default for Kernel

fn default() -> Self

Returns the “default value” for a type.