# scheduler.rs - source
Source of the Rust file `maplibre/src/platform/noweb/scheduler.rs`.

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    use std::future::Future;

    use crate::io::scheduler::{ScheduleError, Scheduler};

    /// Multi-threading with Tokio.
    pub struct TokioScheduler;

    impl TokioScheduler {
        pub fn new() -> Self {
            Self {}
        }
    }

    impl Scheduler for TokioScheduler {
        #[cfg(feature = "thread-safe-futures")]
        fn schedule<T>(
            &self,
            future_factory: impl FnOnce() -> T + Send + 'static,
        ) -> Result<(), ScheduleError>
        where
            T: Future<Output = ()> + Send + 'static,
        {
            tokio::task::spawn((future_factory)());
            Ok(())
        }

        // FIXME: Provide a working implementation
        #[cfg(not(feature = "thread-safe-futures"))]
        fn schedule<T>(
            &self,
            _future_factory: impl FnOnce() -> T + 'static,
        ) -> Result<(), ScheduleError>
        where
            T: Future<Output = ()> + 'static,
        {
            Ok(())
        }
    }

    impl Default for TokioScheduler {
        fn default() -> Self {
            Self::new()
        }
    }