Function switch_to

tests/unit_test/mocks/arch.cpp:15–42

extern "C" {

void switch_to(cpu_io::CalleeSavedContext* prev_ctx,
               cpu_io::CalleeSavedContext* next_ctx) {
  auto* env_state =
      test_env::TestEnvironmentState::GetCurrentThreadEnvironment();
  assert(env_state &&
         "TestEnvironmentState not set for current thread. "
         "Did you forget to call SetCurrentThreadEnvironment()?");

  auto& core_env = env_state->GetCurrentCoreEnv();

  // 从上下文指针查找对应的任务
  auto* prev_task = env_state->FindTaskByContext(prev_ctx);
  auto* next_task = env_state->FindTaskByContext(next_ctx);

  // 获取 PerCpu 数据
  auto& per_cpu = per_cpu::GetCurrentCore();

  // 记录切换事件到环境层
  test_env::CoreEnvironment::SwitchEvent event;
  event.timestamp = (per_cpu.sched_data ? per_cpu.sched_data->local_tick : 0);
  event.from = prev_task;
  event.to = next_task;
  event.core_id = core_env.core_id;
  core_env.switch_history.push_back(event);

  // 更新 PerCpu 的当前线程
  per_cpu.running_task = next_task;
}

void kernel_thread_entry() {}
void trap_return(void*) {}