DST Fix

internal/app/coroutines/completePromise.go

@@ -159,14 +159,14 @@ func completePromise(tags map[string]string, cmd *t_aio.UpdatePromiseCommand, ad
 				Kind: t_aio.CompleteTasks,
 				CompleteTasks: &t_aio.CompleteTasksCommand{
 					RootPromiseId: cmd.Id,
-					CompletedOn:   cmd.CompletedOn,
+					CompletedOn:   c.Time(),
 				},
 			},
 			{
 				Kind: t_aio.CreateTasks,
 				CreateTasks: &t_aio.CreateTasksCommand{
 					PromiseId: cmd.Id,
-					CreatedOn: cmd.CompletedOn,
+					CreatedOn: c.Time(),
 				},
 			},
 			{

internal/app/coroutines/createPromise.go

@@ -96,10 +96,13 @@
 			return nil, err
 		}
 		var promiseRowsAffected int64
-		if taskCmd == nil {
+
+		// CreatePromise could be merged with a task command in `createPromise`
+		if completion.Store.Results[0].Kind == t_aio.CreatePromise {
 			promiseRowsAffected = completion.Store.Results[0].CreatePromise.RowsAffected
 		} else {
 			promiseRowsAffected = completion.Store.Results[0].CreatePromiseAndTask.PromiseRowsAffected
+			util.Assert(promiseRowsAffected == completion.Store.Results[0].CreatePromiseAndTask.TaskRowsAffected, "number of promises and tasks affected must be equal.")
 		}
 
 		if promiseRowsAffected == 0 {
@@ -212,27 +215,9 @@
 		promiseCmd.Tags = map[string]string{}
 	}
 
-	isCreatePromiseAndTask := taskCmd != nil
-
 	return func(c gocoro.Coroutine[*t_aio.Submission, *t_aio.Completion, *t_aio.Completion]) (*t_aio.Completion, error) {
 		commands := []*t_aio.Command{}
 
-		// Combine both commands if taskCmd is not null otherwise add just the CreatePromiseCmd
-		if isCreatePromiseAndTask {
-			commands = append(commands, &t_aio.Command{
-				Kind: t_aio.CreatePromiseAndTask,
-				CreatePromiseAndTask: &t_aio.CreatePromiseAndTaskCommand{
-					PromiseCommand: promiseCmd,
-					TaskCommand:    taskCmd,
-				},
-			})
-		} else {
-			commands = append(commands, &t_aio.Command{
-				Kind:          t_aio.CreatePromise,
-				CreatePromise: promiseCmd,
-			})
-		}
-
 		// check router to see if a task needs to be created
 		completion, err := gocoro.YieldAndAwait(c, &t_aio.Submission{
 			Kind: t_aio.Router,
@@ -254,16 +239,21 @@
 			slog.Warn("failed to match promise", "cmd", promiseCmd, "err", err)
 		}
 
-		if isCreatePromiseAndTask && (err != nil || !completion.Router.Matched) {
+		if taskCmd != nil && (err != nil || !completion.Router.Matched) {
 			slog.Error("failed to match promise with router when creating a task", "cmd", promiseCmd)
 			return nil, t_api.NewError(t_api.StatusPromiseRecvNotFound, err)
 		}
 
+		cmd := &t_aio.Command{
+			Kind:          t_aio.CreatePromise,
+			CreatePromise: promiseCmd,
+		}
+
 		if err == nil && completion.Router.Matched {
 			util.Assert(completion.Router.Recv != nil, "recv must not be nil")
 
 			// If there is a taskCmd just update the Recv otherwise create a tasks for the match
-			if isCreatePromiseAndTask {
+			if taskCmd != nil {
 				// Note: we are mutating the taskCmd that is already merged with the createPromiseCmd
 				taskCmd.Recv = completion.Router.Recv
 			} else {
@@ -275,17 +265,19 @@
 					State:     task.Init,
 					CreatedOn: promiseCmd.CreatedOn,
 				}
-
-				// add create task command if matched
-				commands = append(commands, &t_aio.Command{
-					Kind:       t_aio.CreateTask,
-					CreateTask: taskCmd,
-				})
-
 			}
 
+			cmd = &t_aio.Command{
+				Kind: t_aio.CreatePromiseAndTask,
+				CreatePromiseAndTask: &t_aio.CreatePromiseAndTaskCommand{
+					PromiseCommand: promiseCmd,
+					TaskCommand:    taskCmd,
+				},
+			}
 		}
 
+		// Add the main command
+		commands = append(commands, cmd)
 		// add additional commands
 		commands = append(commands, additionalCmds...)
 
@@ -307,15 +299,15 @@
 
 		util.Assert(completion.Store != nil, "completion must not be nil")
 		util.Assert(len(completion.Store.Results) == len(commands), "completion must have same number of results as commands")
-		if isCreatePromiseAndTask {
+		if completion.Store.Results[0].Kind == t_aio.CreatePromiseAndTask {
 			promiseAndTaskResult := completion.Store.Results[0].CreatePromiseAndTask
 			util.Assert(promiseAndTaskResult.PromiseRowsAffected == 0 || promiseAndTaskResult.PromiseRowsAffected == 1, "Creating promise result must return 0 or 1 rows")
-			if promiseAndTaskResult.PromiseRowsAffected == 0 {
-				util.Assert(promiseAndTaskResult.TaskRowsAffected == 0, "If not promise was created a task must have not been created")
-			}
-		} else {
+			util.Assert(promiseAndTaskResult.TaskRowsAffected == promiseAndTaskResult.PromiseRowsAffected, "If not promise was created a task must have not been created")
+		} else if completion.Store.Results[0].Kind == t_aio.CreatePromise {
 			createPromiseResult := completion.Store.Results[0].CreatePromise
 			util.Assert(createPromiseResult.RowsAffected == 0 || createPromiseResult.RowsAffected == 1, "CreatePromise result must return 0 or 1 rows")
+		} else {
+			panic("First result must be CreatePromise or CreatePromiseAndTask")
 		}
 
 		return completion, nil

internal/app/subsystems/aio/store/sqlite/sqlite.go

@@ -1025,8 +1025,11 @@ func (w *SqliteStoreWorker) createPromiseAndTask(tx *sql.Tx, promiseStmt *sql.St
 	// Couldn't create a promise
 	if promiseResult.CreatePromise.RowsAffected == 0 {
 		return &t_aio.Result{
-			Kind:                 t_aio.CreatePromiseAndTask,
-			CreatePromiseAndTask: &t_aio.AlterPromiseAndTaskResult{},
+			Kind: t_aio.CreatePromiseAndTask,
+			CreatePromiseAndTask: &t_aio.AlterPromiseAndTaskResult{
+				PromiseRowsAffected: 0,
+				TaskRowsAffected:    0,
+			},
 		}, nil
 	}
 

test/dst/dst.go

@@ -160,6 +160,7 @@
 					if d.config.PrintOps {
 						// log
 						slog.Info("DST", "t", fmt.Sprintf("%d|%d", reqTime, resTime), "id", id, "req", req, "res", res, "err", err)
+
 					}
 
 					// extract cursors for subsequent requests
@@ -482,6 +483,12 @@
 
 				var tasks string
 				for _, t := range *model.tasks {
+					var completedOn string
+					if t.value.CompletedOn == nil {
+						completedOn = "--"
+					} else {
+						completedOn = fmt.Sprintf("%d", *t.value.CompletedOn)
+					}
 					tasks = tasks + fmt.Sprintf(`
 					<tr>
 						<td align="right">%s</td>
@@ -490,8 +497,9 @@
 						<td align="right">%d</td>
 						<td align="right">%d</td>
 						<td align="right">%d</td>
+						<td align="right">%s</td>
 					</tr>
-				`, t.value.Id, t.value.State, t.value.RootPromiseId, t.value.ExpiresAt, t.value.Timeout, *t.value.CreatedOn)
+				`, t.value.Id, t.value.State, t.value.RootPromiseId, t.value.ExpiresAt, t.value.Timeout, *t.value.CreatedOn, completedOn)
 				}
 				return fmt.Sprintf(`
 					<table border="0" cellspacing="0" cellpadding="5" style="background-color: white;">
@@ -526,6 +534,7 @@
 										<td><b>expiresAt</b></td>
 										<td><b>timeout</b></td>
 										<td><b>createdOn</b></td>
+										<td><b>completedOn</b></td>
 									</tr>
 								</thead>
 								<tbody>