Nisanth ANisanth ANisanth A

1689lease_expires = now + timedelta(minutes=lease_duration_minutes)1690claimed = connection.execute(1691    update(background_jobs_table)1692    .where(1693        background_jobs_table.c.job_id == candidate["job_id"],1694        background_jobs_table.c.status == candidate["status"],1695        background_jobs_table.c.updated_at == candidate["updated_at"],1696    )1697    .values(1698        status="running",1699        attempt=next_attempt,1700        lease_owner=worker_id,1701        lease_expires_at=lease_expires,1702        started_at=now if next_attempt == 1 else candidate["started_at"],1703        updated_at=now,1704    )1705)1706if claimed.rowcount != 1:1707    return None

155missing = [field for field in MATCH_FIELDS if field not in result]156score = result.get("match_score")157recommendation = result.get("recommendation")158valid = (159    not missing160    and isinstance(score, int)161    and 0 <= score <= 100162    and recommendation in {"APPLY", "CONSIDER", "SKIP"}163)164if valid:165    result.setdefault("gap_analysis", [])166    return result167168if attempt == 0:169    prompt += (170        "\nYour previous response violated the schema. Return every required field: "171        "match_score (integer 0-100), recommendation (APPLY, CONSIDER, or SKIP), "172        "reasons, matching_skills, missing_skills, experience_match, and concerns."173    )174    continue

115// Send tasks into the tasks channel. This is the producer.116// If the buffer is full, this blocks until a worker picks one up.117// That's backpressure in action.118tasksSent := 0119cancelled := false120for _, task := range taskList {121	// Check if the context was cancelled (e.g., Ctrl+C)122	select {123	case <-ctx.Done():124		fmt.Printf("\n[pool] cancelled after sending %d/%d tasks\n", tasksSent, len(taskList))125		cancelled = true126	case p.tasks <- task:127		tasksSent++128	}129	if cancelled {130		break131	}132}133134// Close the tasks channel. This signals to workers that no more135// tasks are coming. Their for-range loops will exit after processing136// whatever is left in the buffer.137close(p.tasks)

165/**166 * Run compensation for completed stages in reverse order.167 *168 * Why reverse? Because stages often depend on earlier stages.169 * Shipping depends on inventory (need items to ship). Inventory170 * depends on payment (need payment before reserving). So when171 * undoing, you cancel the shipment first, then release inventory,172 * then refund payment. If you refunded first and then tried to173 * cancel the shipment, the carrier might say "too late, it shipped."174 */175private async compensate(order: Order, completedStages: StageName[]): Promise<void> {176  order.status = "compensating";177  order.updatedAt = Date.now();178179  // Reverse the completed stages180  const toCompensate = [...completedStages].reverse();181182  for (const stageName of toCompensate) {183    const stage = this.stages.find((s) => s.name === stageName);184    if (!stage) continue;⋮

69  const existing = inFlight.get(key);70  if (existing) {71    // Someone else already noticed the miss and is fetching — wait on72    // their result instead of starting a second, third, fourth lookup.73    broadcast({ type: "coalesced", requestId, waitingOn: existing.ownerId });74    const value = await existing.promise;75    broadcast({ type: "db-call-resolved", requestId });76    return { value, source: "coalesced" };77  }7879  broadcast({ type: "cache-miss", requestId });80  broadcast({ type: "db-call-started", requestId });81  const fetchPromise = slowDatabaseLookup(key).then((value) => {82    cache.set(key, { value, expiresAt: Date.now() + TTL_MS });83    inFlight.delete(key);84    return value;85  });8687  inFlight.set(key, { promise: fetchPromise, ownerId: requestId });88  const value = await fetchPromise;89  broadcast({ type: "db-call-resolved", requestId });90  return { value, source: "database" };91}

62  // For http(s), a bare path of "" or "/" both mean the root page.63  if (url.protocol === 'http:' || url.protocol === 'https:') {64    if (url.pathname === '') {65      url.pathname = '/';66    }67  }6869  // Strip tracking parameters, keeping any genuinely useful query keys.70  const kept: string[] = [];71  for (const [key, value] of url.searchParams.entries()) {72    const lowerKey = key.toLowerCase();73    if (TRACKING_PARAMS.has(lowerKey)) continue;74    kept.push(`${key}=${value}`);75  }76  kept.sort();77  url.search = kept.length > 0 ? `?${kept.join('&')}` : '';7879  return url.toString();80}