work is now properly queued

js/miner-cpu/index.js

 
 		childs.forEach(child => {
 			child.on("exit", code => {
-				console.error("Child exited with code", code);
+				if (code != null)
+					console.error("Child exited with code", code);
+
 				if (code === 0) {
 					childsLeft -= 1;
 					childs.forEach(x => x !== child && x.kill());

js/stratum-client.js

 	constructor(ip, port, miner) {
 		this.name = ip+":"+port;
 
+		this.queue = [];
+		this.working = false;
 		this.nounceReady = false;
 		this.difficultyReady = false;
 		this.miner = miner;
 	}
 
 	async startWork() {
-		if (!this.work)
+		if (this.working)
 			return;
+		if (this.queue.length === 0)
+			return;
+
+		var work = this.queue.shift();
 
-		this.log("Starting work", this.work.id);
+		this.log("Starting work", work.id);
+		this.working = true;
 		var res;
 		try {
-			res = await this.miner.startWork(this.work);
+			res = await this.miner.startWork(work);
 		} catch (err) {
 			console.trace(err);
 			return;
+		} finally {
+			this.working = false;
+			this.startWork();
 		}
 		this.log("Work done,", res.toString("hex"));
 	}
 			};
 			this.log("Got work", work.id);
 
-			this.work = work;
+			this.queue.push(work);
 			if (this.difficultyReady && this.nounceReady)
 				this.startWork();
 		});