cli_v2: implement ListWorkers and GetWorkerInfo

src/api/admin/worker.rs

@@ -3,12 +3,59 @@ use std::sync::Arc;
 
 use async_trait::async_trait;
 
+use garage_util::background::*;
+use garage_util::time::now_msec;
+
 use garage_model::garage::Garage;
 
 use crate::api::*;
 use crate::error::Error;
 use crate::{Admin, RequestHandler};
 
+#[async_trait]
+impl RequestHandler for LocalListWorkersRequest {
+	type Response = LocalListWorkersResponse;
+
+	async fn handle(
+		self,
+		_garage: &Arc<Garage>,
+		admin: &Admin,
+	) -> Result<LocalListWorkersResponse, Error> {
+		let workers = admin.background.get_worker_info();
+		let info = workers
+			.into_iter()
+			.filter(|(_, w)| {
+				(!self.busy_only
+					|| matches!(w.state, WorkerState::Busy | WorkerState::Throttled(_)))
+					&& (!self.error_only || w.errors > 0)
+			})
+			.map(|(id, w)| worker_info_to_api(id as u64, w))
+			.collect::<Vec<_>>();
+		Ok(LocalListWorkersResponse(info))
+	}
+}
+
+#[async_trait]
+impl RequestHandler for LocalGetWorkerInfoRequest {
+	type Response = LocalGetWorkerInfoResponse;
+
+	async fn handle(
+		self,
+		_garage: &Arc<Garage>,
+		admin: &Admin,
+	) -> Result<LocalGetWorkerInfoResponse, Error> {
+		let info = admin
+			.background
+			.get_worker_info()
+			.get(&(self.id as usize))
+			.ok_or(Error::NoSuchWorker(self.id))?
+			.clone();
+		Ok(LocalGetWorkerInfoResponse(worker_info_to_api(
+			self.id, info,
+		)))
+	}
+}
+
 #[async_trait]
 impl RequestHandler for LocalGetWorkerVariableRequest {
 	type Response = LocalGetWorkerVariableResponse;
@@ -48,3 +95,30 @@ impl RequestHandler for LocalSetWorkerVariableRequest {
 		})
 	}
 }
+
+// ---- helper functions ----
+
+fn worker_info_to_api(id: u64, info: WorkerInfo) -> WorkerInfoResp {
+	WorkerInfoResp {
+		id: id,
+		name: info.name,
+		state: match info.state {
+			WorkerState::Busy => WorkerStateResp::Busy,
+			WorkerState::Throttled(t) => WorkerStateResp::Throttled { duration_secs: t },
+			WorkerState::Idle => WorkerStateResp::Idle,
+			WorkerState::Done => WorkerStateResp::Done,
+		},
+		errors: info.errors as u64,
+		consecutive_errors: info.consecutive_errors as u64,
+		last_error: info.last_error.map(|(message, t)| WorkerLastError {
+			message,
+			secs_ago: (std::cmp::max(t, now_msec()) - t) / 1000,
+		}),
+
+		tranquility: info.status.tranquility,
+		progress: info.status.progress,
+		queue_length: info.status.queue_length,
+		persistent_errors: info.status.persistent_errors,
+		freeform: info.status.freeform,
+	}
+}