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abstract service worker pattern; restart on panic.

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Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk 2024-07-11 21:00:30 +00:00
parent 03d890cd49
commit c111d2e395
8 changed files with 233 additions and 216 deletions
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17
src/service/service.rs
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@ -15,19 +15,12 @@ pub(crate) trait Service: Send + Sync {
where
Self: Sized;
/// Start the service. Implement the spawning of any service workers. This
/// is called after all other services have been constructed. Failure will
/// shutdown the server with an error.
async fn start(self: Arc<Self>) -> Result<()> { Ok(()) }
/// Implement the service's worker loop. The service manager spawns a
/// task and calls this function after all services have been built.
async fn worker(self: Arc<Self>) -> Result<()> { Ok(()) }
/// Stop the service. Implement the joining of any service workers and
/// cleanup of any other state. This function is asynchronous to allow that
/// gracefully, but errors cannot propagate.
async fn stop(&self) {}
/// Interrupt the service. This may be sent prior to `stop()` as a
/// notification to improve the shutdown sequence. Implementations must be
/// robust to this being called multiple times.
/// Interrupt the service. This is sent to initiate a graceful shutdown.
/// The service worker should return from its work loop.
fn interrupt(&self) {}
/// Clear any caches or similar runtime state.