Function test_runner_entry

tests/system_test/main.cpp:131–231

}

void test_runner_entry(void* /*arg*/) {
  auto& task_mgr = TaskManagerSingleton::instance();
  auto* runner = task_mgr.GetCurrentTask();

  // Phase 2: 为每个非 SMP 测试创建独立线程，建立父子关系
  int thread_test_count = 0;

  for (size_t i = 0; i < kTestCount; ++i) {
    if (test_cases[i].is_smp_test) {
      continue;
    }

    auto task = kstd::make_unique<TaskControlBlock>(
        test_cases[i].name, 10, test_thread_entry, reinterpret_cast<void*>(i));

    // Wait() requires parent-child relationship to collect exit status
    task->aux->parent_pid = runner->pid;
    task->aux->pgid = runner->aux->pgid;

    // Save raw pointer: pid is assigned inside AddTask() by AllocatePid(),
    // so we must read it *after* the call (unique_ptr is moved).
    auto* task_ptr = task.get();
    test_results[i].status = TestThreadStatus::kRunning;

    task_mgr.AddTask(std::move(task));
    test_results[i].pid = task_ptr->pid;
    thread_test_count++;
  }

  klog::Info("[RUNNER] Spawned {} test threads, collecting via Wait()...",
             thread_test_count);

  // Phase 3: 通过 Wait() 收集所有测试线程的退出状态
  int collected = 0;
  constexpr int kMaxWaitRetries = 1200;  // 1200 * 50ms = 60s 超时
  int retries = 0;

  while (collected < thread_test_count && retries < kMaxWaitRetries) {
    int status = 0;
    auto wait_result =
        task_mgr.Wait(static_cast<Pid>(-1), &status, true, false);

    if (wait_result.has_value() && wait_result.value() > 0) {
      Pid exited_pid = wait_result.value();

      bool is_test_thread = false;
      for (size_t i = 0; i < kTestCount; ++i) {
        if (test_results[i].pid == static_cast<int64_t>(exited_pid)) {
          test_results[i].exit_code = status;
          test_results[i].status = (status == 0) ? TestThreadStatus::kPassed
                                                 : TestThreadStatus::kFailed;

          klog::Info("[RUNNER] Collected: {} (pid={}, exit_code={}) — {}",
                     test_cases[i].name, exited_pid, status,
                     (status == 0) ? "PASS" : "FAIL");
          is_test_thread = true;
          break;
        }