| 369 | } |
| 370 | |
| 371 | private async handleEngineRequest( |
| 372 | seq: number, |
| 373 | method: EngineMethod, |
| 374 | args: unknown[], |
| 375 | ): Promise<void> { |
| 376 | try { |
| 377 | let value: unknown; |
| 378 | switch (method) { |
| 379 | case 'init': |
| 380 | value = await this.engine.init(); |
| 381 | break; |
| 382 | case 'query': |
| 383 | value = await this.engine.query(args[0] as string); |
| 384 | break; |
| 385 | case 'exec': |
| 386 | value = await this.engine.exec(args[0] as string); |
| 387 | break; |
| 388 | case 'fsWrite': |
| 389 | value = await this.engine.fsWrite( |
| 390 | args[0] as string, |
| 391 | args[1] as Uint8Array, |
| 392 | ); |
| 393 | break; |
| 394 | case 'fsUnlink': |
| 395 | value = await this.engine.fsUnlink(args[0] as string); |
| 396 | break; |
| 397 | case 'close': |
| 398 | value = await this.engine.close(); |
| 399 | break; |
| 400 | default: |
| 401 | throw new Error(`unknown engine method '${method}'`); |
| 402 | } |
| 403 | this.worker.postMessage({ seq, type: 'engine-reply', value }); |
| 404 | } catch (err) { |
| 405 | this.worker.postMessage({ |
| 406 | seq, |
| 407 | type: 'engine-error', |
| 408 | message: err instanceof Error ? err.message : String(err), |
| 409 | }); |
| 410 | } |
| 411 | } |
| 412 | } |