(jobs: FanoutJob[], opts: FanoutOptions)
| 58 | * should have checked). |
| 59 | */ |
| 60 | export async function runFanout(jobs: FanoutJob[], opts: FanoutOptions): Promise<FanoutJobResult[]> { |
| 61 | const runner = getSubAgentRunner(); |
| 62 | if (!runner) { |
| 63 | throw new Error('fanout requires sub-agents to be enabled (getSubAgentRunner() returned null)'); |
| 64 | } |
| 65 | const now = opts.now ?? Date.now; |
| 66 | const cap = Math.max(1, Math.floor(opts.maxConcurrency)); |
| 67 | const results = new Array<FanoutJobResult>(jobs.length); |
| 68 | |
| 69 | const runOne = async (job: FanoutJob, index: number): Promise<void> => { |
| 70 | const start = now(); |
| 71 | opts.onEvent?.({ type: 'job-start', label: job.label, index, total: jobs.length }); |
| 72 | try { |
| 73 | const r = await runner(job.prompt, { |
| 74 | maxIterations: job.maxIterations ?? 8, |
| 75 | signal: opts.signal, |
| 76 | sessionId: job.sessionId, |
| 77 | modelOverride: job.model, |
| 78 | role: job.role, |
| 79 | }); |
| 80 | results[index] = { |
| 81 | label: job.label, |
| 82 | ok: r.ok, |
| 83 | finalText: r.finalText ?? '', |
| 84 | toolCallsRun: r.toolCallsRun ?? 0, |
| 85 | error: r.error, |
| 86 | modelUsed: r.modelUsed, |
| 87 | elapsedMs: now() - start, |
| 88 | }; |
| 89 | } catch (err: any) { |
| 90 | // A runner that throws (rather than returning ok:false) must not kill the pool. |
| 91 | logger.warn('fanout job threw', { label: job.label, err: err?.message ?? String(err) }); |
| 92 | results[index] = { |
| 93 | label: job.label, |
| 94 | ok: false, |
| 95 | finalText: '', |
| 96 | toolCallsRun: 0, |
| 97 | error: err?.message ?? String(err), |
| 98 | elapsedMs: now() - start, |
| 99 | }; |
| 100 | } finally { |
| 101 | const res = results[index]!; |
| 102 | opts.onEvent?.({ type: 'job-done', label: job.label, index, ok: res.ok, elapsedMs: res.elapsedMs, toolCallsRun: res.toolCallsRun }); |
| 103 | } |
| 104 | }; |
| 105 | |
| 106 | let next = 0; |
| 107 | const inFlight = new Set<Promise<void>>(); |
| 108 | while (next < jobs.length || inFlight.size > 0) { |
| 109 | // Fill open slots (unless aborted — then drain what's running and stop). |
| 110 | while (next < jobs.length && inFlight.size < cap && !opts.signal?.aborted) { |
| 111 | const index = next++; |
| 112 | const p = runOne(jobs[index]!, index).finally(() => inFlight.delete(p)); |
| 113 | inFlight.add(p); |
| 114 | } |
| 115 | if (inFlight.size === 0) break; // aborted with nothing left to drain |
| 116 | await Promise.race(inFlight); |
| 117 | } |
no test coverage detected