option to turn on natural time mining

lotus-soup/common_roles.go

@@ -43,33 +43,38 @@ func runMiner(t *TestEnvironment) error {
 	// mine / stop mining
 	mine := true
 	done := make(chan struct{})
-	go func() {
-		defer close(done)
-		var i int
-		for i = 0; mine; i++ {
-			// synchronize all miners to mine the next block
-			t.RecordMessage("synchronizing all miners to mine next block [%d]", i)
-			stateMineNext := sync.State(fmt.Sprintf("mine-block-%d", i))
-			t.SyncClient.MustSignalAndWait(ctx, stateMineNext, miners)
 
-			ch := make(chan struct{})
-			err := miner.MineOne(ctx, func(mined bool) {
-				if mined {
-					t.D().Counter(fmt.Sprintf("block.mine,miner=%s", myActorAddr)).Inc(1)
+	if miner.MineOne != nil {
+		go func() {
+			defer close(done)
+			var i int
+			for i = 0; mine; i++ {
+				// synchronize all miners to mine the next block
+				t.RecordMessage("synchronizing all miners to mine next block [%d]", i)
+				stateMineNext := sync.State(fmt.Sprintf("mine-block-%d", i))
+				t.SyncClient.MustSignalAndWait(ctx, stateMineNext, miners)
+
+				ch := make(chan struct{})
+				err := miner.MineOne(ctx, func(mined bool) {
+					if mined {
+						t.D().Counter(fmt.Sprintf("block.mine,miner=%s", myActorAddr)).Inc(1)
+					}
+					close(ch)
+				})
+				if err != nil {
+					panic(err)
 				}
-				close(ch)
-			})
-			if err != nil {
-				panic(err)
+				<-ch
 			}
-			<-ch
-		}
 
-		// signal the last block to make sure no miners are left stuck waiting for the next block signal
-		// while the others have stopped
-		stateMineLast := sync.State(fmt.Sprintf("mine-block-%d", i))
-		t.SyncClient.MustSignalEntry(ctx, stateMineLast)
-	}()
+			// signal the last block to make sure no miners are left stuck waiting for the next block signal
+			// while the others have stopped
+			stateMineLast := sync.State(fmt.Sprintf("mine-block-%d", i))
+			t.SyncClient.MustSignalEntry(ctx, stateMineLast)
+		}()
+	} else {
+		close(done)
+	}
 
 	// wait for a signal from all clients to stop mining
 	err = <-t.SyncClient.MustBarrier(ctx, stateStopMining, clients).C

lotus-soup/manifest.toml

@@ -41,3 +41,6 @@ instances = { min = 1, max = 100, default = 5 }
 
   # Params relevant to pubsub tracing
   enable_pubsub_tracer = { type = "bool", default = false }
+
+  # Mining Mode: synchronized -vs- natural time
+  mining_mode = { type = "enum", default = "synchronized", options = ["synchronized", "natural"] }

lotus-soup/node.go

@@ -397,15 +397,29 @@ func prepareMiner(t *TestEnvironment) (*Node, error) {
 		return nil, err
 	}
 
-	mineBlock := make(chan func(bool))
-	stop2, err := node.New(context.Background(),
+	minerOpts := []node.Option{
 		node.StorageMiner(&n.minerApi),
 		node.Online(),
 		node.Repo(minerRepo),
 		node.Override(new(api.FullNode), n.fullApi),
-		node.Override(new(*miner.Miner), miner.NewTestMiner(mineBlock, minerAddr)),
 		withMinerListenAddress(minerIP),
-	)
+	}
+
+	if t.StringParam("mining_mode") != "natural" {
+		mineBlock := make(chan func(bool))
+		minerOpts = append(minerOpts,
+			node.Override(new(*miner.Miner), miner.NewTestMiner(mineBlock, minerAddr)))
+		n.MineOne = func(ctx context.Context, cb func(bool)) error {
+			select {
+			case mineBlock <- cb:
+				return nil
+			case <-ctx.Done():
+				return ctx.Err()
+			}
+		}
+	}
+
+	stop2, err := node.New(context.Background(), minerOpts...)
 	if err != nil {
 		stop1(context.TODO())
 		return nil, err
@@ -430,15 +444,6 @@ func prepareMiner(t *TestEnvironment) (*Node, error) {
 		panic(err)
 	}
 
-	n.MineOne = func(ctx context.Context, cb func(bool)) error {
-		select {
-		case mineBlock <- cb:
-			return nil
-		case <-ctx.Done():
-			return ctx.Err()
-		}
-	}
-
 	// add local storage for presealed sectors
 	err = n.minerApi.StorageAddLocal(ctx, presealDir)
 	if err != nil {