qml_plugin/src/lib.rs


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use std::sync::LazyLock;

use tokio::task;

static RUNTIME: LazyLock<tokio::runtime::Runtime> = LazyLock::new(
    || {
        tokio::runtime::Builder::new_multi_thread()
            .enable_all()
            .build()
            .unwrap()
    },
);

/// for example duckduckgo we wanna cancel first request if user types new query
/// using this guarentee that only one request is running at a time or at least
/// the first one is being aborted
#[derive(Default)]
pub struct ExclusiveExecutor {
    handle: Option<task::JoinHandle<()>>,
}

impl ExclusiveExecutor {
    pub fn new() -> Self {
        Self {
            handle: None,
        }
    }

    #[track_caller]
    pub fn spawn<F>(&mut self, future: F)
    where
        F: Future<Output = ()> + Send + 'static,
        F::Output: Send + 'static,
    {
        if let Some(handle) = self
            .handle
            .take()
        {
            handle.abort();
        }

        self.handle = Some(RUNTIME.spawn(future))
    }
}

mod launcher;
mod web;