Function test_clone_parent_flag

tests/system_test/clone_test.cpp:264–360

}

void test_clone_parent_flag(void* /*arg*/) {
  klog::Info("=== Clone Parent Flag Test ===");

  bool passed = true;

  {
    auto task = kstd::make_unique<TaskControlBlock>("DefaultTask", 10,
                                                    noop_work, nullptr);
    if (task->aux->parent_pid != 0) {
      klog::Err("Default parent_pid is not 0");
      passed = false;
    }
    if (task->aux->tgid != 0) {
      klog::Err("Default tgid is not 0");
      passed = false;
    }
    if (task->aux->clone_flags.value() != 0) {
      klog::Err("Default clone_flags is not empty");
      passed = false;
    }

    auto* raw = task.get();
    TaskManagerSingleton::instance().AddTask(std::move(task));

    if (raw->pid == 0) {
      klog::Err("AddTask did not assign pid");
      passed = false;
    }
    if (raw->aux->tgid != raw->pid) {
      klog::Err("AddTask did not set tgid=pid: tgid={} pid={}", raw->aux->tgid,
                raw->pid);
      passed = false;
    }
  }

  {
    auto leader = kstd::make_unique<TaskControlBlock>("JoinLeader", 10,
                                                      noop_work, nullptr);
    auto* leader_raw = leader.get();
    TaskManagerSingleton::instance().AddTask(std::move(leader));

    auto member = kstd::make_unique<TaskControlBlock>("JoinMember", 10,
                                                      noop_work, nullptr);
    member->JoinThreadGroup(leader_raw);
    auto* member_raw = member.get();
    TaskManagerSingleton::instance().AddTask(std::move(member));

    if (member_raw->aux->tgid != leader_raw->aux->tgid) {
      klog::Err("JoinThreadGroup did not link tgid: member={} leader={}",
                member_raw->aux->tgid, leader_raw->aux->tgid);
      passed = false;
    }
  }

  {
    auto task = kstd::make_unique<TaskControlBlock>("FieldTest", 10, noop_work,
                                                    nullptr);
    task->aux->parent_pid = 42;