| 1 | package control |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "fmt" |
| 7 | "log/slog" |
| 8 | "sync" |
| 9 | "sync/atomic" |
| 10 | "time" |
| 11 | |
| 12 | "reasonix/internal/agent" |
| 13 | "reasonix/internal/event" |
| 14 | "reasonix/internal/evidence" |
| 15 | "reasonix/internal/session" |
| 16 | "reasonix/internal/sessioninbox" |
| 17 | "reasonix/internal/transcript" |
| 18 | "reasonix/internal/turnevent" |
| 19 | ) |
| 20 | |
| 21 | // turnEventSink persists lifecycle envelopes before frontend publication. |
| 22 | // Provider-facing transcript messages remain a separate artifact. |
| 23 | type turnEventSink struct { |
| 24 | event.AuditForwarder |
| 25 | innerMu sync.RWMutex |
| 26 | inner event.Sink |
| 27 | stream event.Sink |
| 28 | c *Controller |
| 29 | publish atomic.Int32 |
| 30 | } |
| 31 | |
| 32 | type turnEventDurableSink struct{ owner *turnEventSink } |
| 33 | |
| 34 | // turnEventState has an independent lock so ledger I/O never holds c.mu. |
| 35 | type turnEventState struct { |
| 36 | mu sync.RWMutex |
| 37 | ledger *turnevent.Ledger |
| 38 | err error |
| 39 | v3 *session.Session |
| 40 | v3Path string |
| 41 | // v3Runtime pins the session instance the cached store belongs to. A |
| 42 | // reclaim closes the old runtime and a later takeover re-opens the same |
| 43 | // identity, so the path key alone would keep serving the closed store. |
| 44 | v3Runtime *session.Runtime |
| 45 | v3Release func(context.Context) error |
| 46 | v3Err error |
| 47 | projection *transcript.Projection |
| 48 | projectionErr error |
| 49 | commitMu sync.Mutex |
| 50 | persistMu sync.Mutex |
| 51 | projectionPath string |
| 52 | pendingCheckpoint *transcript.Checkpoint |
| 53 | projectionPersistedThrough uint64 |
| 54 | projectionWriteErr error |
| 55 | volatileTodos []event.Todo |
| 56 | volatileTodoWritten bool |
| 57 | // pendingExecutionCommit is prepared by an unpublished hot-rebuild |
| 58 | // candidate and consumed atomically with Runtime execution activation. |
| 59 | // commitMu owns it and its queue reservation. |
| 60 | pendingExecutionCommit *session.PreparedBatch |
| 61 | pendingTermination *TerminationPlan |
| 62 | turnMessageIDs map[string]bool |
| 63 | finalizedTurn string |
| 64 | terminationBoundary *terminationBoundary |
| 65 | openStream openStreamOutput |
| 66 | } |
| 67 | |
| 68 | // projectVolatileTodo keeps the same event-derived projection for controllers |
| 69 | // that have not acquired a session path yet. It is a cache of successful |
| 70 | // lifecycle events, never a second writable todo state machine. |
| 71 | func (c *Controller) projectVolatileTodo(e event.Event) { |
| 72 | if c == nil { |
| 73 | return |
| 74 | } |
| 75 | c.turnEvents.mu.Lock() |
| 76 | defer c.turnEvents.mu.Unlock() |
| 77 | switch { |
| 78 | case e.Kind == event.TurnStarted: |
| 79 | c.turnEvents.volatileTodos = []event.Todo{} |
| 80 | c.turnEvents.volatileTodoWritten = false |
| 81 | case e.Kind == event.ToolResult && e.Tool.TodoWritten: |
| 82 | c.turnEvents.volatileTodos = append([]event.Todo(nil), e.Tool.Todos...) |
| 83 | c.turnEvents.volatileTodoWritten = true |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | func (c *Controller) volatileTodoState() ([]event.Todo, bool) { |
| 88 | if c == nil { |
| 89 | return []event.Todo{}, false |
| 90 | } |
| 91 | c.turnEvents.mu.RLock() |
| 92 | defer c.turnEvents.mu.RUnlock() |
| 93 | return append([]event.Todo(nil), c.turnEvents.volatileTodos...), c.turnEvents.volatileTodoWritten |
| 94 | } |
| 95 | |
| 96 | func newTurnEventSink(inner event.Sink, c *Controller) *turnEventSink { |
| 97 | s := &turnEventSink{inner: inner, c: c} |
| 98 | s.stream = event.Coalesce(&turnEventDurableSink{owner: s}, event.DefaultStreamDeltaWindow) |
| 99 | s.AuditForwarder = event.AuditForwarder{Inner: s.stream} |
| 100 | return s |
| 101 | } |
| 102 | |
| 103 | func (s *turnEventSink) InboxChanged(snap sessioninbox.InboxSnapshot) { |
| 104 | if s != nil { |
| 105 | notifyInboxChanged(s.innerSnapshot(), snap) |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | var _ event.OptionalSinkCapabilities = (*turnEventSink)(nil) |
| 110 | var _ event.CheckedSink = (*turnEventSink)(nil) |
| 111 | var _ event.OptionalSinkCapabilities = (*turnEventDurableSink)(nil) |
| 112 | var _ event.CheckedSink = (*turnEventDurableSink)(nil) |
| 113 | |
| 114 | func (s *turnEventSink) Emit(e event.Event) { |
| 115 | if s == nil { |
| 116 | return |
| 117 | } |
| 118 | s.observe(e) |
| 119 | if turnEventSynchronousBarrier(e.Kind) { |
| 120 | if err := event.EmitChecked(s.stream, e); err != nil { |
| 121 | s.fail(err) |
| 122 | } |
| 123 | return |
| 124 | } |
| 125 | s.stream.Emit(e) |
| 126 | } |
| 127 | |
| 128 | // observe feeds every raw event to the ledger's routing and to the liveness |
| 129 | // tracker before ordering, so silence is measured from real emission time. |
| 130 | func (s *turnEventSink) observe(e event.Event) { |
| 131 | if s.c == nil { |
| 132 | return |
| 133 | } |
| 134 | if ledger := s.c.turnEventLedger(); ledger != nil { |
| 135 | ledger.ObserveRawEvent(e) |
| 136 | } |
| 137 | s.c.turnEvents.openStream.observe(e) |
| 138 | s.c.liveness.observe(e, time.Now()) |
| 139 | } |
| 140 | |
| 141 | func turnEventSynchronousBarrier(kind event.Kind) bool { |
| 142 | switch kind { |
| 143 | case event.ToolDispatch, event.ToolStarted, event.ToolResult, event.AskRequest, event.ApprovalRequest, |
| 144 | event.MCPInteractionRequest, event.PromptAnswered, event.TurnStatusChanged, |
| 145 | event.TurnStarted, event.TurnDone, event.SessionOperation: |
| 146 | return true |
| 147 | default: |
| 148 | return false |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | func (s *turnEventSink) EmitChecked(e event.Event) error { |
| 153 | if s == nil { |
| 154 | return nil |
| 155 | } |
| 156 | s.observe(e) |
| 157 | var err error |
| 158 | if s.publish.Load() > 0 && e.Kind == event.PromptAnswered { |
| 159 | // A frontend may answer during prompt publication, so the coalescer cannot |
| 160 | // wait on itself. Only that already-ordered PromptAnswered barrier may use |
| 161 | // this re-entrant path; other checked events preserve coalescer ordering. |
| 162 | err = (&turnEventDurableSink{owner: s}).EmitChecked(e) |
| 163 | } else { |
| 164 | err = event.EmitChecked(s.stream, e) |
| 165 | } |
| 166 | if err != nil { |
| 167 | s.fail(err) |
| 168 | } |
| 169 | return err |
| 170 | } |
| 171 | |
| 172 | func (s *turnEventSink) fail(err error) { |
| 173 | if s != nil && s.c != nil && err != nil { |
| 174 | s.c.failTurnEventLedger(err) |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | func (s *turnEventSink) innerSnapshot() event.Sink { |
| 179 | if s == nil { |
| 180 | return nil |
| 181 | } |
| 182 | s.innerMu.RLock() |
| 183 | defer s.innerMu.RUnlock() |
| 184 | return s.inner |
| 185 | } |
| 186 | |
| 187 | func (s *turnEventSink) setInner(inner event.Sink) { |
| 188 | if s == nil { |
| 189 | return |
| 190 | } |
| 191 | s.innerMu.Lock() |
| 192 | s.inner = inner |
| 193 | s.innerMu.Unlock() |
| 194 | } |
| 195 | |
| 196 | func (s *turnEventSink) publishInner(e event.Event) { |
| 197 | inner := s.innerSnapshot() |
| 198 | if inner == nil { |
| 199 | return |
| 200 | } |
| 201 | s.publish.Add(1) |
| 202 | defer s.publish.Add(-1) |
| 203 | inner.Emit(e) |
| 204 | } |
| 205 | |
| 206 | // emitChecked persists before publish and returns durability failures to the |
| 207 | // admission boundary. It also suppresses the executor's duplicate TurnStarted |
| 208 | // because the controller has already committed that transition before the |
| 209 | // provider goroutine is launched. |
| 210 | func (s *turnEventSink) persistAndPublish(e event.Event) error { |
| 211 | if s == nil || s.c == nil { |
| 212 | return nil |
| 213 | } |
| 214 | if e.Kind == event.SessionOperation { |
| 215 | if err := s.c.persistMaintenanceOperation(e); err != nil { |
| 216 | return err |
| 217 | } |
| 218 | return s.publishOutsideTurn(s.c.turnEventLedger(), e) |
| 219 | } |
| 220 | if e.RecoveryCheckpoint { |
| 221 | return s.c.CheckpointSession(context.Background(), agent.CheckpointBeforeTopTool) |
| 222 | } |
| 223 | if err := s.c.stampToolRecoveryEvent(e); err != nil { |
| 224 | return err |
| 225 | } |
| 226 | ledger := s.c.turnEventLedger() |
| 227 | if ledger == nil { |
| 228 | s.c.projectVolatileTodo(e) |
| 229 | s.c.refreshRuntimeState(e) |
| 230 | s.publishInner(e) |
| 231 | return nil |
| 232 | } |
| 233 | if staleTurnStatus(e, ledger) { |
| 234 | return nil |
| 235 | } |
| 236 | // Outside-turn notices are not lifecycle records and must pass through after |
| 237 | // bootstrap or a terminal event. |
| 238 | if ledger.ActiveTurnID() == "" { |
| 239 | return s.publishOutsideTurn(ledger, e) |
| 240 | } |
| 241 | if e.Kind == event.TurnStarted && ledger.CurrentStatus() == event.TurnInProgress { |
| 242 | return nil |
| 243 | } |
| 244 | status := publicationTurnStatus(e, ledger) |
| 245 | if e.WriteIntent { |
| 246 | return nil |
| 247 | } |
| 248 | // No frontend callback runs while commitMu is held. Prompt publication |
| 249 | // can synchronously reenter this sink to append PromptAnswered. |
| 250 | stamped, envelope, ok, err := s.commitEnvelope(ledger, e, status) |
| 251 | if err != nil { |
| 252 | return err |
| 253 | } |
| 254 | if !ok { |
| 255 | return nil |
| 256 | } |
| 257 | if err := s.c.flushSubmissionStart(s.c.submissionAdmissionContext(), e.Kind); err != nil { |
| 258 | return err |
| 259 | } |
| 260 | projectionSaved := true |
| 261 | if e.Kind == event.TurnDone { |
| 262 | if store := s.c.sessionEventStore(); store != nil { |
| 263 | if _, err := store.Flush(context.Background()); err != nil { |
| 264 | return err |
| 265 | } |
| 266 | } |
| 267 | s.c.captureTranscriptCheckpoint(ledger, envelope.TranscriptDigest) |
| 268 | if err := s.c.persistTranscriptCheckpoint(ledger); err != nil { |
| 269 | projectionSaved = false |
| 270 | slog.Warn("controller: persist transcript display checkpoint", "err", err) |
| 271 | } |
| 272 | } |
| 273 | if _, runtime, exclusive := s.c.v3Binding(); exclusive && runtime != nil { |
| 274 | if err := runtime.PublishTranscriptFrame(envelope); err != nil { |
| 275 | return err |
| 276 | } |
| 277 | } |
| 278 | s.c.recordTurnLifecycle(stamped) |
| 279 | s.c.refreshRuntimeState(stamped) |
| 280 | s.publishInner(stamped) |
| 281 | if e.Kind == event.TurnDone && !ledger.ProjectionAckRequired() && projectionSaved { |
| 282 | if err := ledger.AcknowledgeProjection(stamped.TurnID); err != nil { |
| 283 | return err |
| 284 | } |
| 285 | } |
| 286 | return nil |
| 287 | } |
| 288 | |
| 289 | func lateBusinessEvent(kind event.Kind) bool { |
| 290 | switch kind { |
| 291 | case event.ToolDispatch, event.ToolStarted, event.ToolProgress, event.ToolResult, |
| 292 | event.AskRequest, event.ApprovalRequest, event.MCPInteractionRequest, |
| 293 | event.PromptAnswered, event.TurnStarted, event.TurnStatusChanged, event.TurnDone: |
| 294 | return true |
| 295 | default: |
| 296 | return false |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | func (s *turnEventSink) commitEnvelope(ledger *turnevent.Ledger, e event.Event, status event.TurnStatus) (event.Event, turnevent.Envelope, bool, error) { |
| 301 | if e.Kind == event.TurnDone { |
| 302 | s.c.snapshotMu.Lock() |
| 303 | defer s.c.snapshotMu.Unlock() |
| 304 | } |
| 305 | s.c.turnEvents.commitMu.Lock() |
| 306 | defer s.c.turnEvents.commitMu.Unlock() |
| 307 | if s.c.discardLateTurnEvent(e) { |
| 308 | slog.Info("controller: discarded late turn event", "kind", e.Kind, "turnId", e.TurnID) |
| 309 | return e, turnevent.Envelope{}, false, nil |
| 310 | } |
| 311 | ctx := context.Background() |
| 312 | if e.Kind == event.TurnDone { |
| 313 | var cancel context.CancelFunc |
| 314 | ctx, cancel = context.WithTimeout(ctx, terminationFlushTimeout) |
| 315 | defer cancel() |
| 316 | } |
| 317 | if e.Kind == event.Notice && e.Code == event.NoticeCodeMCPToolsList && e.MessageID == "" { |
| 318 | if store := s.c.sessionEventStore(); store != nil { |
| 319 | e.MessageID = fmt.Sprintf("notice:%s:%d", store.ID(), store.EventSequence()+1) |
| 320 | } |
| 321 | } |
| 322 | if err := s.c.appendSessionEventLocked(ctx, e); err != nil { |
| 323 | return e, turnevent.Envelope{}, false, err |
| 324 | } |
| 325 | if e.Kind == event.TurnDone { |
| 326 | e.ReadCompletion = s.c.updateTurnLedgerTranscript(ledger) |
| 327 | } |
| 328 | stamped, envelope, ok, err := ledger.AppendEnvelope(e, status) |
| 329 | if err != nil || !ok || stamped.Sequence == 0 { |
| 330 | return stamped, envelope, ok, err |
| 331 | } |
| 332 | s.c.turnEvents.mu.RLock() |
| 333 | projection := s.c.turnEvents.projection |
| 334 | s.c.turnEvents.mu.RUnlock() |
| 335 | _, _, exclusive := s.c.v3Binding() |
| 336 | if projection != nil && !exclusive { |
| 337 | if projectionErr := projection.Apply(envelope); projectionErr != nil { |
| 338 | s.c.turnEvents.mu.Lock() |
| 339 | s.c.turnEvents.projectionErr = projectionErr |
| 340 | s.c.turnEvents.mu.Unlock() |
| 341 | } |
| 342 | } |
| 343 | return stamped, envelope, true, nil |
| 344 | } |
| 345 | |
| 346 | func (s *turnEventDurableSink) Emit(e event.Event) { |
| 347 | _ = s.EmitChecked(e) |
| 348 | } |
| 349 | |
| 350 | func (s *turnEventDurableSink) EmitChecked(e event.Event) error { |
| 351 | if s == nil || s.owner == nil { |
| 352 | return nil |
| 353 | } |
| 354 | err := s.owner.persistAndPublish(e) |
| 355 | if err == nil { |
| 356 | return nil |
| 357 | } |
| 358 | if classifyCommitError(err) == commitLifecycle { |
| 359 | slog.Info("controller: lifecycle event commit", "err", err, "kind", e.Kind) |
| 360 | return nil |
| 361 | } |
| 362 | if e.Kind == event.TurnDone && classifyCommitError(err) != commitOwnership { |
| 363 | s.owner.c.disarmGoalLifecycle("persistence-error") |
| 364 | s.owner.c.mu.Lock() |
| 365 | s.owner.c.enterRecoveryLocked("terminal_commit_failed") |
| 366 | s.owner.c.mu.Unlock() |
| 367 | if _, runtime, exclusive := s.owner.c.v3Binding(); exclusive && runtime != nil { |
| 368 | runtime.Transcript().PersistenceFailed() |
| 369 | } |
| 370 | } |
| 371 | // Async stream callers cannot observe checked errors. Fail the Turn here so |
| 372 | // a poisoned WAL immediately cancels provider, prompt, and process work. |
| 373 | slog.Error("controller: append turn event ledger", "err", err, "kind", e.Kind) |
| 374 | s.owner.fail(err) |
| 375 | if e.Kind == event.TurnDone { |
| 376 | // The durable terminal failed, so publish a sequence-free control-plane |
| 377 | // failure only to release UI state. It is never treated as ledger truth. |
| 378 | e.Err = errors.Join(e.Err, err) |
| 379 | e.Status = event.TurnFailed |
| 380 | if inner := s.owner.innerSnapshot(); inner != nil { |
| 381 | inner.Emit(e) |
| 382 | } |
| 383 | } |
| 384 | return err |
| 385 | } |
| 386 | |
| 387 | func (s *turnEventDurableSink) inner() event.Sink { |
| 388 | if s == nil || s.owner == nil { |
| 389 | return nil |
| 390 | } |
| 391 | return s.owner.innerSnapshot() |
| 392 | } |
| 393 | |
| 394 | func (s *turnEventDurableSink) RecordDelegationAudit(a evidence.DelegationAudit) { |
| 395 | event.RecordDelegationAudit(s.inner(), a) |
| 396 | } |
| 397 | func (s *turnEventDurableSink) RecordReadinessAudit(a evidence.ReadinessAudit) { |
| 398 | event.RecordReadinessAudit(s.inner(), a) |
| 399 | } |
| 400 | func (s *turnEventDurableSink) RecordAnchorSafetyAudit(a event.AnchorSafetyAudit) { |
| 401 | event.RecordAnchorSafetyAudit(s.inner(), a) |
| 402 | } |
| 403 | func (s *turnEventDurableSink) RecordTurnCompletion() { event.RecordTurnCompletion(s.inner()) } |
| 404 | func (s *turnEventDurableSink) RecordContractShadow(a event.ContractShadowAudit) { |
| 405 | event.RecordContractShadow(s.inner(), a) |
| 406 | } |
| 407 | func (s *turnEventDurableSink) RecordCompletionReport(a event.CompletionReportAudit) { |
| 408 | event.RecordCompletionReport(s.inner(), a) |
| 409 | } |
| 410 | func (s *turnEventDurableSink) RecordMemoryRecall(a event.MemoryRecallAudit) { |
| 411 | event.RecordMemoryRecall(s.inner(), a) |
| 412 | } |
| 413 | func (s *turnEventDurableSink) RecordDelegationAdmission(a event.DelegationAdmissionAudit) { |
| 414 | event.RecordDelegationAdmission(s.inner(), a) |
| 415 | } |
| 416 | func (s *turnEventDurableSink) RecordOutcomeProgress(a evidence.OutcomeSample) { |
| 417 | event.RecordOutcomeProgress(s.inner(), a) |
| 418 | } |
| 419 | func (s *turnEventDurableSink) RecordProtocolRecovery(a event.ProtocolRecoveryAudit) { |
| 420 | event.RecordProtocolRecovery(s.inner(), a) |
| 421 | } |
| 422 | func (s *turnEventDurableSink) RecordWorkspaceMutation(a event.WorkspaceMutation) { |
| 423 | event.RecordWorkspaceMutation(s.inner(), a) |
| 424 | } |
| 425 | func (s *turnEventDurableSink) RecordRunBudget(a event.RunBudgetSample) { |
| 426 | event.RecordRunBudget(s.inner(), a) |
| 427 | } |
| 428 | func (s *turnEventDurableSink) RecordSubagentLifecycle(a event.SubagentLifecycleInfo) { |
| 429 | event.RecordSubagentLifecycle(s.inner(), a) |
| 430 | } |
| 431 | |
| 432 | func terminalTurnStatus(e event.Event) event.TurnStatus { |
| 433 | if e.Recovery != nil && e.Recovery.State == "recovery_required" { |
| 434 | return event.TurnRecoveryRequired |
| 435 | } |
| 436 | if e.Cancelled || errors.Is(e.Err, context.Canceled) { |
| 437 | return event.TurnInterrupted |
| 438 | } |
| 439 | if e.Err != nil { |
| 440 | return event.TurnFailed |
| 441 | } |
| 442 | return event.TurnCompleted |
| 443 | } |
| 444 | |
| 445 | func (c *Controller) turnEventLedger() *turnevent.Ledger { |
| 446 | if c == nil { |
| 447 | return nil |
| 448 | } |
| 449 | c.turnEvents.mu.RLock() |
| 450 | defer c.turnEvents.mu.RUnlock() |
| 451 | return c.turnEvents.ledger |
| 452 | } |
| 453 | |
| 454 | func (c *Controller) turnEventLedgerError() error { |
| 455 | if c == nil { |
| 456 | return nil |
| 457 | } |
| 458 | c.turnEvents.mu.RLock() |
| 459 | defer c.turnEvents.mu.RUnlock() |
| 460 | return c.turnEvents.err |
| 461 | } |
| 462 | |
| 463 | func (c *Controller) applyTurnDoneProtocol(done event.Event, cancelRequested bool) event.Event { |
| 464 | if cancelRequested { |
| 465 | // Interruption is a terminal state, not a send failure; partial text is |
| 466 | // already display-only by this point. |
| 467 | done.Err = nil |
| 468 | } |
| 469 | return done |
| 470 | } |
| 471 | |
| 472 | func (c *Controller) turnEventRuntimeStatus() (string, event.TurnStatus, uint64, uint64) { |
| 473 | ledger := c.turnEventLedger() |
| 474 | if ledger == nil { |
| 475 | return "", "", 0, 0 |
| 476 | } |
| 477 | latest, replayAfter := ledger.ProjectionCursor() |
| 478 | return ledger.ActiveTurnID(), ledger.CurrentStatus(), latest, replayAfter |
| 479 | } |
| 480 | |
| 481 | func (c *Controller) rebindTurnEvents(sessionPath string) { |
| 482 | defer c.refreshRuntimeState(event.Event{}) |
| 483 | if c == nil { |
| 484 | return |
| 485 | } |
| 486 | desiredV3Path := sessionDirectory(sessionPath) |
| 487 | ledgerID := agent.BranchID(sessionPath) |
| 488 | var desiredRuntime *session.Runtime |
| 489 | if _, runtime, _ := c.v3Binding(); runtime != nil { |
| 490 | ref := runtime.Ref() |
| 491 | desiredV3Path = "session:" + ref.HostID + "/" + ref.SessionID |
| 492 | ledgerID = ref.SessionID |
| 493 | desiredRuntime = runtime |
| 494 | } |
| 495 | c.turnEvents.mu.RLock() |
| 496 | currentV3, currentV3Path := c.turnEvents.v3, c.turnEvents.v3Path |
| 497 | currentV3Runtime := c.turnEvents.v3Runtime |
| 498 | c.turnEvents.mu.RUnlock() |
| 499 | v3, releaseV3, v3Err := currentV3, (func(context.Context) error)(nil), error(nil) |
| 500 | // The runtime pin matters for exclusive sessions: a reclaim closes the |
| 501 | // old instance and the takeover re-opens the same identity, so the path |
| 502 | // alone cannot tell a live store from the closed one it replaced. |
| 503 | if currentV3 == nil || currentV3Path != desiredV3Path || currentV3Runtime != desiredRuntime { |
| 504 | v3, releaseV3, v3Err = c.openSessionEventStore(sessionPath) |
| 505 | } |
| 506 | ledger, err := c.openTurnLedger(sessionPath, ledgerID, v3Err) |
| 507 | if err != nil { |
| 508 | // Normalize platform-specific open errors behind the same storage |
| 509 | // sentinel used by append failures. Keep the original error in the |
| 510 | // chain so unsupported-schema callers can still inspect its type. |
| 511 | err = fmt.Errorf("%w: %w", turnevent.ErrTurnLedgerUnavailable, err) |
| 512 | slog.Warn("controller: open v3 session event store", "err", err, "session", agent.BranchID(sessionPath)) |
| 513 | c.turnEvents.mu.Lock() |
| 514 | previousV3, previousRelease := c.turnEvents.v3, c.turnEvents.v3Release |
| 515 | previousLedger := c.turnEvents.ledger |
| 516 | c.turnEvents.ledger = nil |
| 517 | c.turnEvents.err = err |
| 518 | c.turnEvents.v3 = nil |
| 519 | c.turnEvents.v3Path = "" |
| 520 | c.turnEvents.v3Runtime = nil |
| 521 | c.turnEvents.v3Release = nil |
| 522 | c.turnEvents.v3Err = err |
| 523 | c.turnEvents.mu.Unlock() |
| 524 | if previousLedger != nil { |
| 525 | if closeErr := previousLedger.Close(); closeErr != nil { |
| 526 | slog.Warn("controller: close ledger after failed rebind", "err", closeErr) |
| 527 | } |
| 528 | } |
| 529 | // Fail admission closed without losing the compatibility writer's |
| 530 | // cleanup owner. Service-backed runtimes remain host-owned. |
| 531 | if previousV3 != nil && !c.sessionEngineEnabled() { |
| 532 | var closeErr error |
| 533 | if previousRelease != nil { |
| 534 | closeErr = previousRelease(context.Background()) |
| 535 | } else { |
| 536 | closeErr = previousV3.Close(context.Background()) |
| 537 | } |
| 538 | if closeErr != nil { |
| 539 | slog.Warn("controller: close session after failed rebind", "err", closeErr) |
| 540 | } |
| 541 | } |
| 542 | return |
| 543 | } |
| 544 | c.turnEvents.mu.Lock() |
| 545 | c.turnEvents.volatileTodos = []event.Todo{} |
| 546 | c.turnEvents.volatileTodoWritten = false |
| 547 | previous := c.turnEvents.ledger |
| 548 | previousV3 := c.turnEvents.v3 |
| 549 | previousV3Release := c.turnEvents.v3Release |
| 550 | c.turnEvents.ledger = ledger |
| 551 | c.turnEvents.err = nil |
| 552 | c.turnEvents.v3 = v3 |
| 553 | c.turnEvents.v3Path = desiredV3Path |
| 554 | c.turnEvents.v3Runtime = desiredRuntime |
| 555 | if releaseV3 != nil { |
| 556 | c.turnEvents.v3Release = releaseV3 |
| 557 | } |
| 558 | c.turnEvents.v3Err = nil |
| 559 | if c.turnEvents.projection != nil { |
| 560 | c.turnEvents.projection.CloseFollowers() |
| 561 | } |
| 562 | c.turnEvents.projection = nil |
| 563 | c.turnEvents.projectionErr = nil |
| 564 | c.turnEvents.projectionPath = sessionPath |
| 565 | c.turnEvents.pendingCheckpoint = nil |
| 566 | c.turnEvents.projectionPersistedThrough = 0 |
| 567 | c.turnEvents.projectionWriteErr = nil |
| 568 | c.turnEvents.mu.Unlock() |
| 569 | if !c.sessionEngineEnabled() { |
| 570 | c.bindAttachmentService() |
| 571 | } |
| 572 | var projection *transcript.Projection |
| 573 | var projectionErr error |
| 574 | if !c.sessionEngineEnabled() { |
| 575 | projection, projectionErr = c.restoreTranscriptProjection(sessionPath, ledger) |
| 576 | } |
| 577 | c.turnEvents.mu.Lock() |
| 578 | c.turnEvents.projection, c.turnEvents.projectionErr = projection, projectionErr |
| 579 | c.turnEvents.mu.Unlock() |
| 580 | if previous != nil && previous != ledger { |
| 581 | if closeErr := previous.Close(); closeErr != nil { |
| 582 | slog.Warn("controller: close previous turn event ledger", "err", closeErr) |
| 583 | } |
| 584 | } |
| 585 | // An exclusive v3 handle belongs to SessionRuntime. Runtime publication |
| 586 | // closes the exact previous instance through SessionService after the new |
| 587 | // binding is visible; this compatibility cleanup must never close it early. |
| 588 | if previousV3 != nil && previousV3 != v3 && !c.sessionEngineEnabled() { |
| 589 | var closeErr error |
| 590 | if previousV3Release != nil { |
| 591 | closeErr = previousV3Release(context.Background()) |
| 592 | } else { |
| 593 | closeErr = previousV3.Close(context.Background()) |
| 594 | } |
| 595 | if closeErr != nil { |
| 596 | slog.Warn("controller: flush and close previous v3 session", "err", closeErr) |
| 597 | } |
| 598 | } |
| 599 | } |
| 600 | |
| 601 | func (c *Controller) openTurnLedger(path, id string, storeErr error) (*turnevent.Ledger, error) { |
| 602 | if storeErr == nil && c.NativeLegacySession() && path != "" { |
| 603 | return turnevent.Open(path, id) |
| 604 | } |
| 605 | return turnevent.NewMemory(id), storeErr |
| 606 | } |
| 607 | |
| 608 | func classifyCommitError(err error) commitFailureKind { |
| 609 | if err == nil { |
| 610 | return commitOK |
| 611 | } |
| 612 | if errors.Is(err, errTerminationDurability) { |
| 613 | return commitUnexpected |
| 614 | } |
| 615 | if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) { |
| 616 | return commitLifecycle |
| 617 | } |
| 618 | if errors.Is(err, session.ErrStaleActivity) || errors.Is(err, session.ErrOperationConflict) { |
| 619 | return commitLifecycle |
| 620 | } |
| 621 | if errors.Is(err, session.ErrSessionNotRunning) || errors.Is(err, session.ErrStaleGeneration) || |
| 622 | errors.Is(err, session.ErrStaleExecution) || errors.Is(err, session.ErrReadOnly) || errors.Is(err, session.ErrRuntimeRetiring) { |
| 623 | return commitOwnership |
| 624 | } |
| 625 | return commitUnexpected |
| 626 | } |
| 627 | |
| 628 | type commitFailureKind int |
| 629 | |
| 630 | const ( |
| 631 | commitOK commitFailureKind = iota |
| 632 | commitLifecycle |
| 633 | commitOwnership |
| 634 | commitUnexpected |
| 635 | ) |
| 636 | |
| 637 | func (c *Controller) failTurnEventLedger(err error) { |
| 638 | defer c.refreshRuntimeState(event.Event{}) |
| 639 | if c == nil || err == nil { |
| 640 | return |
| 641 | } |
| 642 | switch classifyCommitError(err) { |
| 643 | case commitLifecycle: |
| 644 | slog.Info("controller: lifecycle commit result", "err", err) |
| 645 | return |
| 646 | case commitOwnership: |
| 647 | c.turnEvents.mu.Lock() |
| 648 | if c.turnEvents.err == nil { |
| 649 | c.turnEvents.err = err |
| 650 | } |
| 651 | c.turnEvents.mu.Unlock() |
| 652 | c.signalTurnCancel() |
| 653 | c.promptOwner.CancelAll() |
| 654 | c.approval.clearAll() |
| 655 | return |
| 656 | } |
| 657 | c.turnEvents.mu.Lock() |
| 658 | if c.turnEvents.err == nil { |
| 659 | c.turnEvents.err = err |
| 660 | } |
| 661 | c.turnEvents.mu.Unlock() |
| 662 | c.signalTurnCancel() |
| 663 | c.promptOwner.CancelAll() |
| 664 | c.approval.clearAll() |
| 665 | } |
| 666 | |
| 667 | // staleTurnStatus reports a status stamped for a turn that has since reached |
| 668 | // its terminal event; cancelling is sticky, so it must not reach the next turn. |
| 669 | func staleTurnStatus(e event.Event, ledger *turnevent.Ledger) bool { |
| 670 | return e.Kind == event.TurnStatusChanged && e.TurnID != "" && e.TurnID != ledger.ActiveTurnID() |
| 671 | } |
| 672 | |
| 673 | // emitTurnStatus stamps the transition with the turn that requested it so the |
| 674 | // ledger can drop it if that turn already reached its terminal event. |
| 675 | func (c *Controller) emitTurnStatus(status event.TurnStatus, turnID string) { |
| 676 | if c == nil || status == "" { |
| 677 | return |
| 678 | } |
| 679 | c.sink.Emit(event.Event{Kind: event.TurnStatusChanged, Status: status, TurnID: turnID}) |
| 680 | } |
| 681 | |
| 682 | // emitTurnEventChecked reaches the lifecycle sink below the inbox observer so |
| 683 | // admission can fail closed on disk errors instead of starting an unledgered |
| 684 | // provider request. Lifecycle events do not participate in inbox notice logic. |
| 685 | func (c *Controller) emitTurnEventChecked(e event.Event) error { |
| 686 | if c == nil { |
| 687 | return nil |
| 688 | } |
| 689 | if e.ItemID != "" && e.TurnID == "" { |
| 690 | if identity, ok := c.promptOwner.Identity(e.ItemID); ok { |
| 691 | e.TurnID = identity.TurnID |
| 692 | e.PromptKind = string(identity.Kind) |
| 693 | } |
| 694 | } else if e.ItemID != "" && e.PromptKind == "" { |
| 695 | if identity, ok := c.promptOwner.Identity(e.ItemID); ok { |
| 696 | e.PromptKind = string(identity.Kind) |
| 697 | } |
| 698 | } |
| 699 | return event.EmitChecked(c.sink, e) |
| 700 | } |
| 701 | |
| 702 | // SetTurnEventRoutingMetadata attaches desktop routing identity to lifecycle |
| 703 | // envelopes only. It never changes provider-visible prompts or tool schemas. |
| 704 | func (c *Controller) SetTurnEventRoutingMetadata(runtimeEpoch, submissionID string) { |
| 705 | c.promptEpochMu.Lock() |
| 706 | c.promptRuntimeEpoch = runtimeEpoch |
| 707 | c.promptEpochMu.Unlock() |
| 708 | if ledger := c.turnEventLedger(); ledger != nil { |
| 709 | ledger.RequireProjectionAck(true) |
| 710 | ledger.SetRoutingMetadata(runtimeEpoch, submissionID) |
| 711 | } |
| 712 | c.BindTranscriptRuntimeEpoch(runtimeEpoch) |
| 713 | } |
| 714 | |
| 715 | // TurnEventsAfter returns the durable lifecycle suffix used by reconnecting |
| 716 | // frontends to close sequence gaps. |
| 717 | func (c *Controller) TurnEventsAfter(after uint64) ([]turnevent.Envelope, error) { |
| 718 | ledger := c.turnEventLedger() |
| 719 | if ledger == nil { |
| 720 | return []turnevent.Envelope{}, nil |
| 721 | } |
| 722 | return ledger.EventsAfter(after) |
| 723 | } |
| 724 | |
| 725 | func (c *Controller) TurnEventReplay(after uint64) (turnevent.ReplayView, error) { |
| 726 | ledger := c.turnEventLedger() |
| 727 | if ledger == nil { |
| 728 | return turnevent.ReplayView{Events: []turnevent.Envelope{}}, nil |
| 729 | } |
| 730 | return ledger.Replay(after) |
| 731 | } |
| 732 | |
| 733 | func (c *Controller) AcknowledgeTurnProjection(turnID string) error { |
| 734 | ledger := c.turnEventLedger() |
| 735 | if ledger == nil { |
| 736 | return nil |
| 737 | } |
| 738 | if err := c.persistTranscriptCheckpoint(ledger); err != nil { |
| 739 | return err |
| 740 | } |
| 741 | return ledger.AcknowledgeProjection(turnID) |
| 742 | } |
| 743 | |
| 744 | func (c *Controller) ObserveTurnProjectionRetry() { |
| 745 | if ledger := c.turnEventLedger(); ledger != nil { |
| 746 | ledger.ObserveProjectionRetry() |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | func (c *Controller) PendingTurnProjections() []turnevent.PendingProjection { |
| 751 | ledger := c.turnEventLedger() |
| 752 | if ledger == nil { |
| 753 | return []turnevent.PendingProjection{} |
| 754 | } |
| 755 | return ledger.PendingProjections() |
| 756 | } |
| 757 | |
| 758 | func (c *Controller) TurnEventMetrics() turnevent.MetricsSnapshot { |
| 759 | ledger := c.turnEventLedger() |
| 760 | if ledger == nil { |
| 761 | return turnevent.MetricsSnapshot{} |
| 762 | } |
| 763 | return ledger.MetricsSnapshot() |
| 764 | } |
| 765 | |
| 766 | func (c *Controller) DrainTurnEventMetrics() turnevent.MetricsSnapshot { |
| 767 | ledger := c.turnEventLedger() |
| 768 | if ledger == nil { |
| 769 | return turnevent.MetricsSnapshot{} |
| 770 | } |
| 771 | return ledger.DrainMetrics() |
| 772 | } |
| 773 | |
| 774 | func publicationTurnStatus(e event.Event, ledger *turnevent.Ledger) event.TurnStatus { |
| 775 | status := e.Status |
| 776 | if status == "" { |
| 777 | status = ledger.CurrentStatus() |
| 778 | } |
| 779 | switch e.Kind { |
| 780 | case event.TurnStarted: |
| 781 | status = event.TurnInProgress |
| 782 | case event.AskRequest, event.ApprovalRequest, event.MCPInteractionRequest: |
| 783 | status = event.TurnWaitingUser |
| 784 | case event.TurnDone: |
| 785 | status = terminalTurnStatus(e) |
| 786 | case event.TurnStatusChanged: |
| 787 | // The emitter supplied the exact transition in e.Status. |
| 788 | } |
| 789 | return status |
| 790 | } |
| 791 |