Struct UnimprovedTimeTermination 

pub struct UnimprovedTimeTermination<S: PlanningSolution> { /* private fields */ }

Terminates if no improvement occurs for a specified duration.

This is useful for time-boxed optimization where you want to ensure progress is being made, but also allow more time if improvements are found.

Example

use std::time::Duration;
use solverforge_solver::termination::UnimprovedTimeTermination;
use solverforge_core::score::SimpleScore;
use solverforge_core::domain::PlanningSolution;

#[derive(Clone)]
struct MySolution;
impl PlanningSolution for MySolution {
    type Score = SimpleScore;
    fn score(&self) -> Option<Self::Score> { None }
    fn set_score(&mut self, _: Option<Self::Score>) {}
}

// Terminate after 5 seconds without improvement
let term = UnimprovedTimeTermination::<MySolution>::seconds(5);

Implementations

impl<S: PlanningSolution> UnimprovedTimeTermination<S>

pub fn new(limit: Duration) -> Self

Creates a termination that stops after limit time without improvement.

pub fn millis(ms: u64) -> Self

Creates a termination with limit in milliseconds.

pub fn seconds(secs: u64) -> Self

Creates a termination with limit in seconds.

Trait Implementations

impl<S: PlanningSolution> Debug for UnimprovedTimeTermination<S>

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

Formats the value using the given formatter.

impl<S: PlanningSolution> Termination<S> for UnimprovedTimeTermination<S>

fn is_terminated(&self, solver_scope: &SolverScope<S>) -> bool

Returns true if solving should terminate.

impl<S: PlanningSolution> Send for UnimprovedTimeTermination<S>