cmd/lotus-provider/deps/deps.go

@@ -253,6 +253,7 @@ Get it with: jq .PrivateKey ~/.lotus-miner/keystore/MF2XI2BNNJ3XILLQOJUXMYLUMU`,
 			}
 		}
 	}
+
 	return nil
 }
 

itests/harmonytask_test.go

@@ -37,13 +37,13 @@ func withDbSetup(t *testing.T, f func(*kit.TestMiner)) {
 	f(miner)
 }
 
-func (t *task1) Do(tID harmonytask.TaskID, stillOwned func() bool) (done bool, err error) {
+func (t *task1) Do(taskID harmonytask.TaskID, stillOwned func() bool) (done bool, err error) {
 	if !stillOwned() {
 		return false, errors.New("Why not still owned?")
 	}
 	t.myPersonalTableLock.Lock()
 	defer t.myPersonalTableLock.Unlock()
-	t.WorkCompleted = append(t.WorkCompleted, fmt.Sprintf("taskResult%d", t.myPersonalTable[tID]))
+	t.WorkCompleted = append(t.WorkCompleted, fmt.Sprintf("taskResult%d", t.myPersonalTable[taskID]))
 	return true, nil
 }
 func (t *task1) CanAccept(list []harmonytask.TaskID, e *harmonytask.TaskEngine) (*harmonytask.TaskID, error) {
@@ -104,8 +104,8 @@ type passthru struct {
 	adder     func(add harmonytask.AddTaskFunc)
 }
 
-func (t *passthru) Do(tID harmonytask.TaskID, stillOwned func() bool) (done bool, err error) {
-	return t.do(tID, stillOwned)
+func (t *passthru) Do(taskID harmonytask.TaskID, stillOwned func() bool) (done bool, err error) {
+	return t.do(taskID, stillOwned)
 }
 func (t *passthru) CanAccept(list []harmonytask.TaskID, e *harmonytask.TaskEngine) (*harmonytask.TaskID, error) {
 	return t.canAccept(list, e)

lib/harmony/harmonytask/task_type_handler.go

@@ -95,16 +95,34 @@ top:
 		return false
 	}
 
+	releaseStorage := func() {
+	}
+	if h.TaskTypeDetails.Cost.Storage != nil {
+		if err = h.TaskTypeDetails.Cost.Storage.Claim(int(*tID)); err != nil {
+			log.Infow("did not accept task", "task_id", strconv.Itoa(int(*tID)), "reason", "storage claim failed", "name", h.Name, "error", err)
+			return false
+		}
+		releaseStorage = func() {
+			if err := h.TaskTypeDetails.Cost.Storage.MarkComplete(int(*tID)); err != nil {
+				log.Errorw("Could not release storage", "error", err)
+			}
+		}
+	}
+
 	// if recovering we don't need to try to claim anything because those tasks are already claimed by us
 	if from != workSourceRecover {
 		// 4. Can we claim the work for our hostname?
 		ct, err := h.TaskEngine.db.Exec(h.TaskEngine.ctx, "UPDATE harmony_task SET owner_id=$1 WHERE id=$2 AND owner_id IS NULL", h.TaskEngine.ownerID, *tID)
 		if err != nil {
 			log.Error(err)
+
+			releaseStorage()
 			return false
 		}
 		if ct == 0 {
 			log.Infow("did not accept task", "task_id", strconv.Itoa(int(*tID)), "reason", "already Taken", "name", h.Name)
+			releaseStorage()
+
 			var tryAgain = make([]TaskID, 0, len(ids)-1)
 			for _, id := range ids {
 				if id != *tID {
@@ -134,6 +152,7 @@ top:
 			}
 			h.Count.Add(-1)
 
+			releaseStorage()
 			h.recordCompletion(*tID, workStart, done, doErr)
 			if done {
 				for _, fs := range h.TaskEngine.follows[h.Name] { // Do we know of any follows for this task type?
@@ -247,5 +266,11 @@ func (h *taskTypeHandler) AssertMachineHasCapacity() error {
 	if r.Gpu-h.Cost.Gpu < 0 {
 		return errors.New("Did not accept " + h.Name + " task: out of available GPU")
 	}
+
+	if h.TaskTypeDetails.Cost.Storage != nil {
+		if !h.TaskTypeDetails.Cost.Storage.HasCapacity() {
+			return errors.New("Did not accept " + h.Name + " task: out of available Storage")
+		}
+	}
 	return nil
 }

lib/harmony/resources/resources.go

@@ -24,6 +24,19 @@ type Resources struct {
 	Gpu       float64
 	Ram       uint64
 	MachineID int
+	Storage
+}
+
+// Optional Storage management.
+type Storage interface {
+	HasCapacity() bool
+
+	// This allows some other system to claim space for this task.
+	Claim(taskID int) error
+
+	// This allows some other system to consider the task done.
+	// It's up to the caller to remove the data, if that applies.
+	MarkComplete(taskID int) error
 }
 type Reg struct {
 	Resources