128 lines
3.2 KiB
Rust
128 lines
3.2 KiB
Rust
use background_jobs::{sled::Storage, tokio::WorkerConfig, BoxError, Job, MaxRetries};
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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_u64: u64,
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other_u64: u64,
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}
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#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
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pub struct PanickingJob;
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#[tokio::main]
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async fn main() -> Result<(), BoxError> {
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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 queue_handle = WorkerConfig::new(storage, |_| MyState::new("My App"))
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.register::<PanickingJob>()
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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 some panicking job
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for _ in 0..32 {
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queue_handle.queue(PanickingJob).await?;
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}
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// Queue our jobs
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for i in 0..10 {
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queue_handle.queue(MyJob::new(i, i + 1)).await?;
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queue_handle
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.schedule(
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MyJob::new(i + 10, i + 11),
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SystemTime::now() + Duration::from_secs(i),
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)
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.await?;
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}
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// Block on tokio
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tokio::signal::ctrl_c().await?;
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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_u64: u64, other_u64: u64) -> Self {
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MyJob {
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some_u64,
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other_u64,
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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 Error = BoxError;
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type Future = Ready<Result<(), BoxError>>;
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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 PanickingJob {
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type State = MyState;
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type Error = BoxError;
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type Future = Ready<Result<(), BoxError>>;
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const NAME: &'static str = "PanickingJob";
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const QUEUE: &'static str = DEFAULT_QUEUE;
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const MAX_RETRIES: MaxRetries = MaxRetries::Count(0);
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fn run(self, _: MyState) -> Self::Future {
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panic!("boom")
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}
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}
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