| 1 | // Package usagecatalog maintains a disposable aggregate projection of the |
| 2 | // authoritative daily statistics JSONL files. |
| 3 | package usagecatalog |
| 4 | |
| 5 | import ( |
| 6 | "bufio" |
| 7 | "context" |
| 8 | "crypto/sha256" |
| 9 | "database/sql" |
| 10 | "encoding/hex" |
| 11 | "encoding/json" |
| 12 | "errors" |
| 13 | "io" |
| 14 | "os" |
| 15 | "path/filepath" |
| 16 | "strings" |
| 17 | "sync" |
| 18 | "sync/atomic" |
| 19 | "time" |
| 20 | |
| 21 | "reasonix/internal/config" |
| 22 | "reasonix/internal/projectiondb" |
| 23 | ) |
| 24 | |
| 25 | const SchemaVersion = 1 |
| 26 | |
| 27 | type AppendReceipt struct { |
| 28 | Path string |
| 29 | Day string |
| 30 | Offset int64 |
| 31 | Length int |
| 32 | LineHash string |
| 33 | } |
| 34 | |
| 35 | type Entry struct { |
| 36 | Day string |
| 37 | Source string |
| 38 | ModelRef string |
| 39 | Provider string |
| 40 | Prompt int |
| 41 | Completion int |
| 42 | Reasoning int |
| 43 | CacheHit int |
| 44 | CacheMiss int |
| 45 | Total int |
| 46 | Requests int |
| 47 | Turns int |
| 48 | } |
| 49 | |
| 50 | type Rollup struct { |
| 51 | Day string |
| 52 | Source string |
| 53 | ModelRef string |
| 54 | Provider string |
| 55 | Prompt int64 |
| 56 | Completion int64 |
| 57 | Reasoning int64 |
| 58 | CacheHit int64 |
| 59 | CacheMiss int64 |
| 60 | Total int64 |
| 61 | Requests int64 |
| 62 | Turns int64 |
| 63 | } |
| 64 | |
| 65 | type Status struct { |
| 66 | State string `json:"state"` |
| 67 | Mode projectiondb.Mode `json:"mode"` |
| 68 | Path string `json:"path,omitempty"` |
| 69 | Revision uint64 `json:"revision"` |
| 70 | IndexedFiles int64 `json:"indexedFiles"` |
| 71 | LagBytes int64 `json:"lagBytes"` |
| 72 | CorruptLines int64 `json:"corruptLines"` |
| 73 | Fallbacks uint64 `json:"fallbacks"` |
| 74 | LastError string `json:"lastError,omitempty"` |
| 75 | } |
| 76 | |
| 77 | type Catalog struct { |
| 78 | db *sql.DB |
| 79 | statusMu sync.RWMutex |
| 80 | status Status |
| 81 | revision atomic.Uint64 |
| 82 | fallback atomic.Uint64 |
| 83 | queue chan receiptEntry |
| 84 | dirtyFiles sync.Map |
| 85 | dirtyDirs sync.Map |
| 86 | dirtyWake chan struct{} |
| 87 | ctx context.Context |
| 88 | cancel context.CancelFunc |
| 89 | wg sync.WaitGroup |
| 90 | closeOnce sync.Once |
| 91 | closeDone chan struct{} |
| 92 | closeErr error |
| 93 | } |
| 94 | |
| 95 | type receiptEntry struct { |
| 96 | receipt AppendReceipt |
| 97 | entry Entry |
| 98 | flush chan struct{} |
| 99 | } |
| 100 | |
| 101 | // DefaultPath returns the disposable usage rollup path under CacheDir. |
| 102 | // Empty when cache is unavailable so Open falls back to an in-memory projection. |
| 103 | func DefaultPath() string { |
| 104 | cache := strings.TrimSpace(config.CacheDir()) |
| 105 | if cache == "" { |
| 106 | return "" |
| 107 | } |
| 108 | return filepath.Join(cache, "usage-catalog", "v1.sqlite") |
| 109 | } |
| 110 | |
| 111 | const schema = ` |
| 112 | CREATE TABLE usage_state(id INTEGER PRIMARY KEY CHECK(id=1),revision INTEGER NOT NULL DEFAULT 0); |
| 113 | INSERT INTO usage_state(id,revision) VALUES(1,0); |
| 114 | CREATE TABLE usage_files( |
| 115 | path TEXT PRIMARY KEY,day TEXT NOT NULL,size INTEGER NOT NULL DEFAULT 0,mtime_ns INTEGER NOT NULL DEFAULT 0, |
| 116 | indexed_offset INTEGER NOT NULL DEFAULT 0,state TEXT NOT NULL DEFAULT 'pending',error TEXT NOT NULL DEFAULT '', |
| 117 | corrupt_lines INTEGER NOT NULL DEFAULT 0,completed_at INTEGER NOT NULL DEFAULT 0 |
| 118 | ); |
| 119 | CREATE TABLE usage_records( |
| 120 | file_path TEXT NOT NULL,byte_offset INTEGER NOT NULL,byte_length INTEGER NOT NULL,line_hash TEXT NOT NULL, |
| 121 | day TEXT NOT NULL,source TEXT NOT NULL,model_ref TEXT NOT NULL,provider TEXT NOT NULL, |
| 122 | prompt INTEGER NOT NULL,completion INTEGER NOT NULL,reasoning INTEGER NOT NULL,cache_hit INTEGER NOT NULL, |
| 123 | cache_miss INTEGER NOT NULL,total INTEGER NOT NULL,requests INTEGER NOT NULL,turns INTEGER NOT NULL, |
| 124 | PRIMARY KEY(file_path,byte_offset) |
| 125 | ); |
| 126 | CREATE TABLE usage_rollups( |
| 127 | day TEXT NOT NULL,source TEXT NOT NULL,model_ref TEXT NOT NULL,provider TEXT NOT NULL, |
| 128 | prompt INTEGER NOT NULL,completion INTEGER NOT NULL,reasoning INTEGER NOT NULL,cache_hit INTEGER NOT NULL, |
| 129 | cache_miss INTEGER NOT NULL,total INTEGER NOT NULL,requests INTEGER NOT NULL,turns INTEGER NOT NULL, |
| 130 | PRIMARY KEY(day,source,model_ref) |
| 131 | ); |
| 132 | CREATE INDEX idx_usage_rollups_range ON usage_rollups(day,source,model_ref); |
| 133 | ` |
| 134 | |
| 135 | func migrations() []projectiondb.Migration { |
| 136 | return []projectiondb.Migration{{Version: 1, Apply: func(ctx context.Context, tx *sql.Tx) error { |
| 137 | _, err := tx.ExecContext(ctx, schema) |
| 138 | return err |
| 139 | }}} |
| 140 | } |
| 141 | |
| 142 | func Open(ctx context.Context, path string) (*Catalog, error) { |
| 143 | if path == "" { |
| 144 | path = DefaultPath() |
| 145 | } |
| 146 | inMemory := strings.TrimSpace(path) == "" |
| 147 | if inMemory { |
| 148 | path = "" |
| 149 | } |
| 150 | handle, err := projectiondb.Open(ctx, projectiondb.OpenOptions{ |
| 151 | Path: path, MemoryName: "usage-catalog", Migrations: migrations(), InMemory: inMemory, MaxOpenConns: 4, |
| 152 | }) |
| 153 | if err != nil { |
| 154 | return nil, err |
| 155 | } |
| 156 | workerCtx, cancel := context.WithCancel(context.Background()) |
| 157 | c := &Catalog{db: handle.DB, queue: make(chan receiptEntry, 1024), dirtyWake: make(chan struct{}, 1), ctx: workerCtx, cancel: cancel, |
| 158 | closeDone: make(chan struct{}), |
| 159 | status: Status{State: string(handle.Status.State), Mode: handle.Status.Mode, Path: handle.Status.Path, LastError: handle.Status.LastError}} |
| 160 | var revision uint64 |
| 161 | _ = c.db.QueryRowContext(ctx, `SELECT revision FROM usage_state WHERE id=1`).Scan(&revision) |
| 162 | c.revision.Store(revision) |
| 163 | c.refresh(ctx) |
| 164 | c.wg.Add(1) |
| 165 | go c.worker() |
| 166 | return c, nil |
| 167 | } |
| 168 | |
| 169 | func (c *Catalog) Enqueue(receipt AppendReceipt, entry Entry) bool { |
| 170 | if c == nil { |
| 171 | return false |
| 172 | } |
| 173 | select { |
| 174 | case c.queue <- receiptEntry{receipt: receipt, entry: entry}: |
| 175 | return true |
| 176 | default: |
| 177 | c.dirtyFiles.Store(receipt.Path, receipt.Day) |
| 178 | c.wakeDirty() |
| 179 | return false |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | func (c *Catalog) worker() { |
| 184 | defer c.wg.Done() |
| 185 | for { |
| 186 | if path, day, ok := c.takeDirtyFile(); ok { |
| 187 | _ = c.ReconcileFile(c.ctx, path, day) |
| 188 | continue |
| 189 | } |
| 190 | if dir, ok := c.takeDirtyDir(); ok { |
| 191 | _ = c.ReconcileDir(c.ctx, dir) |
| 192 | continue |
| 193 | } |
| 194 | select { |
| 195 | case <-c.ctx.Done(): |
| 196 | return |
| 197 | case <-c.dirtyWake: |
| 198 | case item := <-c.queue: |
| 199 | if item.flush != nil { |
| 200 | close(item.flush) |
| 201 | continue |
| 202 | } |
| 203 | _ = c.applyReceipt(c.ctx, item.receipt, item.entry) |
| 204 | } |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | func (c *Catalog) takeDirtyFile() (string, string, bool) { |
| 209 | var path, day string |
| 210 | c.dirtyFiles.Range(func(key, value any) bool { |
| 211 | path, _ = key.(string) |
| 212 | day, _ = value.(string) |
| 213 | c.dirtyFiles.Delete(key) |
| 214 | return false |
| 215 | }) |
| 216 | return path, day, path != "" |
| 217 | } |
| 218 | |
| 219 | func (c *Catalog) takeDirtyDir() (string, bool) { |
| 220 | var dir string |
| 221 | c.dirtyDirs.Range(func(key, _ any) bool { |
| 222 | dir, _ = key.(string) |
| 223 | c.dirtyDirs.Delete(key) |
| 224 | return false |
| 225 | }) |
| 226 | return dir, dir != "" |
| 227 | } |
| 228 | |
| 229 | func (c *Catalog) RequestReconcileDir(dir string) { |
| 230 | if c != nil && strings.TrimSpace(dir) != "" { |
| 231 | c.dirtyDirs.Store(filepath.Clean(dir), true) |
| 232 | c.wakeDirty() |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | func (c *Catalog) wakeDirty() { |
| 237 | select { |
| 238 | case c.dirtyWake <- struct{}{}: |
| 239 | default: |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | func (c *Catalog) Flush(ctx context.Context) error { |
| 244 | if c == nil { |
| 245 | return nil |
| 246 | } |
| 247 | done := make(chan struct{}) |
| 248 | select { |
| 249 | case c.queue <- receiptEntry{flush: done}: |
| 250 | case <-ctx.Done(): |
| 251 | return ctx.Err() |
| 252 | } |
| 253 | select { |
| 254 | case <-done: |
| 255 | return nil |
| 256 | case <-ctx.Done(): |
| 257 | return ctx.Err() |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | func (c *Catalog) applyReceipt(ctx context.Context, receipt AppendReceipt, entry Entry) error { |
| 262 | tx, err := c.db.BeginTx(ctx, nil) |
| 263 | if err != nil { |
| 264 | return err |
| 265 | } |
| 266 | var existingHash string |
| 267 | err = tx.QueryRowContext(ctx, `SELECT line_hash FROM usage_records WHERE file_path=? AND byte_offset=?`, receipt.Path, receipt.Offset).Scan(&existingHash) |
| 268 | if err == nil { |
| 269 | _ = tx.Rollback() |
| 270 | if existingHash != receipt.LineHash { |
| 271 | return c.ReconcileFile(ctx, receipt.Path, receipt.Day) |
| 272 | } |
| 273 | return nil |
| 274 | } |
| 275 | if !errors.Is(err, sql.ErrNoRows) { |
| 276 | _ = tx.Rollback() |
| 277 | return err |
| 278 | } |
| 279 | if err := insertRecord(ctx, tx, receipt, entry); err != nil { |
| 280 | _ = tx.Rollback() |
| 281 | return err |
| 282 | } |
| 283 | end := receipt.Offset + int64(receipt.Length) |
| 284 | mtime := int64(0) |
| 285 | if info, statErr := os.Stat(receipt.Path); statErr == nil { |
| 286 | mtime = info.ModTime().UnixNano() |
| 287 | } |
| 288 | _, err = tx.ExecContext(ctx, `INSERT INTO usage_files(path,day,size,mtime_ns,indexed_offset,state,completed_at) VALUES(?,?,?,?,?,'ready',?) |
| 289 | ON CONFLICT(path) DO UPDATE SET day=excluded.day,size=MAX(usage_files.size,excluded.size), |
| 290 | mtime_ns=CASE WHEN usage_files.indexed_offset=? THEN excluded.mtime_ns ELSE usage_files.mtime_ns END, |
| 291 | indexed_offset=CASE WHEN usage_files.indexed_offset=? THEN excluded.indexed_offset ELSE usage_files.indexed_offset END, |
| 292 | state=CASE WHEN usage_files.indexed_offset=? THEN 'ready' ELSE 'pending' END,completed_at=excluded.completed_at`, |
| 293 | receipt.Path, receipt.Day, end, mtime, end, time.Now().UnixMilli(), receipt.Offset, receipt.Offset, receipt.Offset) |
| 294 | if err != nil { |
| 295 | _ = tx.Rollback() |
| 296 | return err |
| 297 | } |
| 298 | revision, err := bump(ctx, tx) |
| 299 | if err != nil { |
| 300 | _ = tx.Rollback() |
| 301 | return err |
| 302 | } |
| 303 | if err := tx.Commit(); err != nil { |
| 304 | return err |
| 305 | } |
| 306 | c.revision.Store(revision) |
| 307 | c.refresh(context.Background()) |
| 308 | return nil |
| 309 | } |
| 310 | |
| 311 | func insertRecord(ctx context.Context, tx *sql.Tx, receipt AppendReceipt, entry Entry) error { |
| 312 | if entry.Total > 0 && entry.Requests <= 0 { |
| 313 | entry.Requests = 1 |
| 314 | } |
| 315 | result, err := tx.ExecContext(ctx, `INSERT OR IGNORE INTO usage_records(file_path,byte_offset,byte_length,line_hash,day,source, |
| 316 | model_ref,provider,prompt,completion,reasoning,cache_hit,cache_miss,total,requests,turns) VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)`, |
| 317 | receipt.Path, receipt.Offset, receipt.Length, receipt.LineHash, entry.Day, entry.Source, entry.ModelRef, entry.Provider, |
| 318 | entry.Prompt, entry.Completion, entry.Reasoning, entry.CacheHit, entry.CacheMiss, entry.Total, entry.Requests, entry.Turns) |
| 319 | if err != nil { |
| 320 | return err |
| 321 | } |
| 322 | inserted, _ := result.RowsAffected() |
| 323 | if inserted == 0 { |
| 324 | return nil |
| 325 | } |
| 326 | _, err = tx.ExecContext(ctx, `INSERT INTO usage_rollups(day,source,model_ref,provider,prompt,completion,reasoning,cache_hit, |
| 327 | cache_miss,total,requests,turns) VALUES(?,?,?,?,?,?,?,?,?,?,?,?) ON CONFLICT(day,source,model_ref) DO UPDATE SET |
| 328 | prompt=prompt+excluded.prompt,completion=completion+excluded.completion,reasoning=reasoning+excluded.reasoning, |
| 329 | cache_hit=cache_hit+excluded.cache_hit,cache_miss=cache_miss+excluded.cache_miss,total=total+excluded.total, |
| 330 | requests=requests+excluded.requests,turns=turns+excluded.turns`, entry.Day, entry.Source, entry.ModelRef, entry.Provider, |
| 331 | entry.Prompt, entry.Completion, entry.Reasoning, entry.CacheHit, entry.CacheMiss, entry.Total, entry.Requests, entry.Turns) |
| 332 | return err |
| 333 | } |
| 334 | |
| 335 | type rawRecord struct { |
| 336 | Timestamp time.Time `json:"ts"` |
| 337 | ModelRef string `json:"model"` |
| 338 | Source string `json:"source"` |
| 339 | Prompt int `json:"prompt"` |
| 340 | Completion int `json:"completion"` |
| 341 | Reasoning int `json:"reasoning"` |
| 342 | CacheHit int `json:"cache_hit"` |
| 343 | CacheMiss int `json:"cache_miss"` |
| 344 | Total int `json:"total"` |
| 345 | Requests int `json:"requests"` |
| 346 | Turn bool `json:"turn"` |
| 347 | } |
| 348 | |
| 349 | func providerOf(model string) string { |
| 350 | if i := strings.IndexByte(model, '/'); i > 0 { |
| 351 | return model[:i] |
| 352 | } |
| 353 | return "default" |
| 354 | } |
| 355 | |
| 356 | func entryFromRaw(day string, raw rawRecord) Entry { |
| 357 | turns := 0 |
| 358 | if raw.Turn { |
| 359 | turns = 1 |
| 360 | } |
| 361 | return Entry{Day: day, Source: raw.Source, ModelRef: raw.ModelRef, Provider: providerOf(raw.ModelRef), Prompt: raw.Prompt, |
| 362 | Completion: raw.Completion, Reasoning: raw.Reasoning, CacheHit: raw.CacheHit, CacheMiss: raw.CacheMiss, |
| 363 | Total: raw.Total, Requests: raw.Requests, Turns: turns} |
| 364 | } |
| 365 | |
| 366 | func (c *Catalog) ReconcileFile(ctx context.Context, path, day string) error { |
| 367 | f, err := os.Open(path) |
| 368 | if errors.Is(err, os.ErrNotExist) { |
| 369 | return nil |
| 370 | } |
| 371 | if err != nil { |
| 372 | return err |
| 373 | } |
| 374 | defer f.Close() |
| 375 | tx, err := c.db.BeginTx(ctx, nil) |
| 376 | if err != nil { |
| 377 | return err |
| 378 | } |
| 379 | if _, err := tx.ExecContext(ctx, `DELETE FROM usage_rollups WHERE day IN (SELECT DISTINCT day FROM usage_records WHERE file_path=?)`, path); err != nil { |
| 380 | _ = tx.Rollback() |
| 381 | return err |
| 382 | } |
| 383 | if _, err := tx.ExecContext(ctx, `DELETE FROM usage_records WHERE file_path=?`, path); err != nil { |
| 384 | _ = tx.Rollback() |
| 385 | return err |
| 386 | } |
| 387 | reader := bufio.NewReader(f) |
| 388 | offset := int64(0) |
| 389 | corrupt := int64(0) |
| 390 | for { |
| 391 | line, readErr := reader.ReadBytes('\n') |
| 392 | if len(line) > 0 { |
| 393 | trimmed := strings.TrimSpace(string(line)) |
| 394 | if trimmed != "" { |
| 395 | var raw rawRecord |
| 396 | if json.Unmarshal([]byte(trimmed), &raw) != nil { |
| 397 | corrupt++ |
| 398 | } else { |
| 399 | hash := sha256.Sum256([]byte(trimmed)) |
| 400 | receipt := AppendReceipt{Path: path, Day: day, Offset: offset, Length: len(line), LineHash: hex.EncodeToString(hash[:])} |
| 401 | if err := insertRecord(ctx, tx, receipt, entryFromRaw(day, raw)); err != nil { |
| 402 | _ = tx.Rollback() |
| 403 | return err |
| 404 | } |
| 405 | } |
| 406 | } |
| 407 | offset += int64(len(line)) |
| 408 | } |
| 409 | if errors.Is(readErr, io.EOF) { |
| 410 | break |
| 411 | } |
| 412 | if readErr != nil { |
| 413 | _ = tx.Rollback() |
| 414 | return readErr |
| 415 | } |
| 416 | } |
| 417 | info, _ := os.Stat(path) |
| 418 | mtime := int64(0) |
| 419 | if info != nil { |
| 420 | mtime = info.ModTime().UnixNano() |
| 421 | } |
| 422 | _, err = tx.ExecContext(ctx, `INSERT INTO usage_files(path,day,size,mtime_ns,indexed_offset,state,error,corrupt_lines,completed_at) |
| 423 | VALUES(?,?,?,?,?,'ready','',?,?) ON CONFLICT(path) DO UPDATE SET day=excluded.day,size=excluded.size,mtime_ns=excluded.mtime_ns, |
| 424 | indexed_offset=excluded.indexed_offset,state='ready',error='',corrupt_lines=excluded.corrupt_lines,completed_at=excluded.completed_at`, |
| 425 | path, day, offset, mtime, offset, corrupt, time.Now().UnixMilli()) |
| 426 | if err != nil { |
| 427 | _ = tx.Rollback() |
| 428 | return err |
| 429 | } |
| 430 | revision, err := bump(ctx, tx) |
| 431 | if err != nil { |
| 432 | _ = tx.Rollback() |
| 433 | return err |
| 434 | } |
| 435 | if err := tx.Commit(); err != nil { |
| 436 | return err |
| 437 | } |
| 438 | c.revision.Store(revision) |
| 439 | c.refresh(context.Background()) |
| 440 | return nil |
| 441 | } |
| 442 | |
| 443 | func (c *Catalog) ReconcileDir(ctx context.Context, dir string) error { |
| 444 | entries, err := os.ReadDir(dir) |
| 445 | if errors.Is(err, os.ErrNotExist) { |
| 446 | return nil |
| 447 | } |
| 448 | if err != nil { |
| 449 | return err |
| 450 | } |
| 451 | for _, entry := range entries { |
| 452 | if entry.IsDir() || !strings.HasSuffix(entry.Name(), ".jsonl") { |
| 453 | continue |
| 454 | } |
| 455 | day := strings.TrimSuffix(entry.Name(), ".jsonl") |
| 456 | if err := c.ReconcileFile(ctx, filepath.Join(dir, entry.Name()), day); err != nil { |
| 457 | return err |
| 458 | } |
| 459 | } |
| 460 | return nil |
| 461 | } |
| 462 | |
| 463 | func (c *Catalog) Ready(ctx context.Context, dir string, days []string) bool { |
| 464 | for _, day := range days { |
| 465 | path := filepath.Join(dir, day+".jsonl") |
| 466 | info, err := os.Stat(path) |
| 467 | if errors.Is(err, os.ErrNotExist) { |
| 468 | continue |
| 469 | } |
| 470 | if err != nil { |
| 471 | return false |
| 472 | } |
| 473 | var size, offset, mtime int64 |
| 474 | var state string |
| 475 | if err := c.db.QueryRowContext(ctx, `SELECT size,indexed_offset,state,mtime_ns FROM usage_files WHERE path=?`, path).Scan(&size, &offset, &state, &mtime); err != nil { |
| 476 | return false |
| 477 | } |
| 478 | // Same-size in-place rewrites must invalidate Ready so callers fall back |
| 479 | // to authoritative JSONL until the catalog rescan catches up. |
| 480 | if state != "ready" || size != info.Size() || offset != info.Size() || mtime != info.ModTime().UnixNano() { |
| 481 | return false |
| 482 | } |
| 483 | } |
| 484 | return true |
| 485 | } |
| 486 | |
| 487 | func (c *Catalog) Query(ctx context.Context, fromDay, toDay, source string) ([]Rollup, error) { |
| 488 | args := []any{fromDay, toDay} |
| 489 | where := `day>=? AND day<=?` |
| 490 | if source != "" && source != "all" { |
| 491 | where += ` AND source=?` |
| 492 | args = append(args, source) |
| 493 | } |
| 494 | rows, err := c.db.QueryContext(ctx, `SELECT day,source,model_ref,provider,prompt,completion,reasoning,cache_hit,cache_miss,total,requests,turns |
| 495 | FROM usage_rollups WHERE `+where+` ORDER BY day,source,model_ref`, args...) |
| 496 | if err != nil { |
| 497 | return nil, err |
| 498 | } |
| 499 | defer rows.Close() |
| 500 | out := []Rollup{} |
| 501 | for rows.Next() { |
| 502 | var row Rollup |
| 503 | if err := rows.Scan(&row.Day, &row.Source, &row.ModelRef, &row.Provider, &row.Prompt, &row.Completion, &row.Reasoning, |
| 504 | &row.CacheHit, &row.CacheMiss, &row.Total, &row.Requests, &row.Turns); err != nil { |
| 505 | return nil, err |
| 506 | } |
| 507 | out = append(out, row) |
| 508 | } |
| 509 | return out, rows.Err() |
| 510 | } |
| 511 | |
| 512 | func bump(ctx context.Context, tx *sql.Tx) (uint64, error) { |
| 513 | if _, err := tx.ExecContext(ctx, `UPDATE usage_state SET revision=revision+1 WHERE id=1`); err != nil { |
| 514 | return 0, err |
| 515 | } |
| 516 | var revision uint64 |
| 517 | err := tx.QueryRowContext(ctx, `SELECT revision FROM usage_state WHERE id=1`).Scan(&revision) |
| 518 | return revision, err |
| 519 | } |
| 520 | |
| 521 | func (c *Catalog) NoteFallback() { c.fallback.Add(1) } |
| 522 | |
| 523 | func (c *Catalog) refresh(ctx context.Context) { |
| 524 | var files, lag, corrupt int64 |
| 525 | _ = c.db.QueryRowContext(ctx, `SELECT COUNT(*),COALESCE(SUM(MAX(size-indexed_offset,0)),0),COALESCE(SUM(corrupt_lines),0) FROM usage_files`).Scan(&files, &lag, &corrupt) |
| 526 | c.statusMu.Lock() |
| 527 | c.status.Revision, c.status.IndexedFiles, c.status.LagBytes, c.status.CorruptLines = c.revision.Load(), files, lag, corrupt |
| 528 | c.status.Fallbacks = c.fallback.Load() |
| 529 | c.statusMu.Unlock() |
| 530 | } |
| 531 | |
| 532 | func (c *Catalog) Status() Status { |
| 533 | c.statusMu.RLock() |
| 534 | defer c.statusMu.RUnlock() |
| 535 | status := c.status |
| 536 | status.Fallbacks = c.fallback.Load() |
| 537 | return status |
| 538 | } |
| 539 | |
| 540 | func (c *Catalog) Close(ctx context.Context) error { |
| 541 | if c == nil { |
| 542 | return nil |
| 543 | } |
| 544 | c.closeOnce.Do(func() { |
| 545 | c.cancel() |
| 546 | go func() { |
| 547 | c.wg.Wait() |
| 548 | c.closeErr = c.db.Close() |
| 549 | close(c.closeDone) |
| 550 | }() |
| 551 | }) |
| 552 | select { |
| 553 | case <-c.closeDone: |
| 554 | return c.closeErr |
| 555 | case <-ctx.Done(): |
| 556 | return ctx.Err() |
| 557 | } |
| 558 | } |
| 559 |