Function test_wait_zombie_reap

tests/system_test/wait_test.cpp:286–325

}

void test_wait_zombie_reap(void* /*arg*/) {
  klog::Info("=== Wait Zombie Reap Test ===");

  g_wait_completed = 0;
  auto& task_mgr = TaskManagerSingleton::instance();
  auto* current = task_mgr.GetCurrentTask();

  if (!current) {
    klog::Err("Wait Zombie Reap Test: Cannot get current task");
    sys_exit(1);
  }

  // 创建快速退出的子进程（会变成僵尸）
  auto child = kstd::make_unique<TaskControlBlock>(
      "ZombieChild", 10, zombie_child_work, reinterpret_cast<void*>(1));
  child->aux->parent_pid = current->pid;
  child->aux->pgid = current->aux->pgid;
  auto* child_raw = child.get();
  task_mgr.AddTask(std::move(child));
  Pid child_pid = child_raw->pid;

  klog::Info("Parent: created zombie child with PID={}", child_pid);

  // 等待一段时间让子进程变成僵尸
  (void)sys_sleep(200);

  // 回收僵尸进程
  int status = 0;
  Pid result = task_mgr.Wait(child_pid, &status, false, false).value_or(0);

  if (result == child_pid) {
    klog::Info("Parent: successfully reaped zombie child {}", result);
    klog::Info("Wait Zombie Reap Test: PASS");
  } else {
    klog::Err("Wait Zombie Reap Test: FAIL - wait returned {}", result);
  }

  g_tests_completed++;
  sys_exit(0);
}

}  // namespace