145 lines
3.8 KiB
Rust
145 lines
3.8 KiB
Rust
use actix_rt::Arbiter;
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use anyhow::Error;
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use background_jobs::{ActixSpawner, MaxRetries, UnsendJob as Job, WorkerConfig};
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use background_jobs_sled_storage::Storage;
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use std::{
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future::{ready, Ready},
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time::{Duration, SystemTime},
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};
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use tracing::info;
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use tracing_subscriber::EnvFilter;
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const DEFAULT_QUEUE: &str = "default";
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#[derive(Clone, Debug)]
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pub struct MyState {
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pub app_name: String,
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}
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#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
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pub struct MyJob {
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some_usize: usize,
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other_usize: usize,
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}
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#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
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pub struct StopJob;
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#[actix_rt::main]
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async fn main() -> Result<(), Error> {
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let env_filter = EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new("info"));
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tracing_subscriber::fmt::fmt()
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.with_env_filter(env_filter)
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.init();
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// Set up our Storage
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let db = sled::Config::new().temporary(true).open()?;
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let storage = Storage::new(db)?;
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// Configure and start our workers
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let manager = WorkerConfig::new_managed(storage, move |_| MyState::new("My App"))
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.register::<StopJob>()
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.register::<MyJob>()
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.set_worker_count(DEFAULT_QUEUE, 16)
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.start();
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// Queue our jobs
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manager.queue(MyJob::new(1, 2)).await?;
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manager.queue(MyJob::new(3, 4)).await?;
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manager.queue(MyJob::new(5, 6)).await?;
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manager
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.schedule(MyJob::new(7, 8), SystemTime::now() + Duration::from_secs(2))
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.await?;
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// Block on Actix
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tracing::info!("Press CTRL^C to continue");
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actix_rt::signal::ctrl_c().await?;
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// kill the current arbiter
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manager.queue(StopJob).await?;
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// Block on Actix
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tracing::info!("Press CTRL^C to continue");
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actix_rt::signal::ctrl_c().await?;
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// See that the workers have respawned
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manager.queue(MyJob::new(1, 2)).await?;
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manager.queue(MyJob::new(3, 4)).await?;
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manager.queue(MyJob::new(5, 6)).await?;
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manager
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.schedule(MyJob::new(7, 8), SystemTime::now() + Duration::from_secs(2))
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.await?;
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// Block on Actix
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tracing::info!("Press CTRL^C to quit");
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actix_rt::signal::ctrl_c().await?;
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drop(manager);
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Ok(())
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}
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impl MyState {
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pub fn new(app_name: &str) -> Self {
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MyState {
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app_name: app_name.to_owned(),
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}
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}
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}
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impl MyJob {
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pub fn new(some_usize: usize, other_usize: usize) -> Self {
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MyJob {
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some_usize,
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other_usize,
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}
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}
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}
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impl Job for MyJob {
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type State = MyState;
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type Future = Ready<Result<(), Error>>;
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type Spawner = ActixSpawner;
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// The name of the job. It is super important that each job has a unique name,
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// because otherwise one job will overwrite another job when they're being
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// registered.
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const NAME: &'static str = "MyJob";
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// The queue that this processor belongs to
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//
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// Workers have the option to subscribe to specific queues, so this is important to
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// determine which worker will call the processor
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//
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// Jobs can optionally override the queue they're spawned on
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const QUEUE: &'static str = DEFAULT_QUEUE;
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// The number of times background-jobs should try to retry a job before giving up
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//
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// Jobs can optionally override this value
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const MAX_RETRIES: MaxRetries = MaxRetries::Count(1);
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fn run(self, state: MyState) -> Self::Future {
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info!("{}: args, {:?}", state.app_name, self);
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ready(Ok(()))
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}
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}
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impl Job for StopJob {
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type State = MyState;
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type Future = Ready<Result<(), Error>>;
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type Spawner = ActixSpawner;
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const NAME: &'static str = "StopJob";
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const QUEUE: &'static str = DEFAULT_QUEUE;
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const MAX_RETRIES: MaxRetries = MaxRetries::Count(1);
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fn run(self, _: MyState) -> Self::Future {
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Arbiter::current().stop();
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ready(Ok(()))
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}
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}
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