Function tryReclaimBinaryLock

pkg/npm/install.js:274–298

(lockPath, contenderToken)

}

function tryReclaimBinaryLock(lockPath, contenderToken) {
  let reclaim = false;
  const owner = readBinaryLockOwner(lockPath);
  if (owner) {
    reclaim = !processIsAlive(owner.pid);
  } else {
    try {
      const age = Date.now() - fs.statSync(lockPath).mtimeMs;
      reclaim = age >= WINDOWS_PAIR_OWNERLESS_STALE_MS;
    } catch (_) {
      return true; // The owner released it between observation and inspection.
    }
  }
  if (!reclaim) return false;

  const reclaimed = `${lockPath}.reclaimed-${contenderToken}`;
  try {
    fs.renameSync(lockPath, reclaimed);
  } catch (err) {
    if (err.code === 'ENOENT') return true;
    return false;
  }
  fs.rmSync(reclaimed, { recursive: true, force: true });
  return true;
}

function acquireWindowsBinaryLock(destDir) {
  const lockPath = path.join(destDir, WINDOWS_PAIR_LOCK_NAME);