Function run

src/common/interruptible.ts:114–132

(gen: Generator<T>, timeLimitMs: number)

    this.name = 'CancellationError';
    if (cause === 'iteration-limit-exceeded') _iterationLimitCancellations += 1;
  }
}

/**
 * Throw a `CancellationError` if `deadline` (an absolute timestamp in
 * milliseconds, or a `DeadlineFrame`, i.e. `engine._deadline` /
 * `engine._deadlineFrame`) has passed.
 *
 * When passed a `DeadlineFrame`, the thrown error carries `attribution`
 * (the frame's `owner`) and `spans` so the catching code can tell which
 * budget fired.
 *
 * Call this periodically from long-running loops that cannot be expressed
 * as generators (where `run()`/`runAsync()` would apply). In tight loops,
 * amortize the `Date.now()` cost with a stride counter:
 *
 *    if ((++count & 0x3ff) === 0) checkDeadline(ce._deadlineFrame);
 */
export function checkDeadline(
  deadline: number | DeadlineFrame | undefined
): void {
  if (deadline === undefined) return;