Class PerCpu

src/include/per_cpu.hpp:23–45

@brief 每个 CPU 核心的局部数据

/// @brief 每个 CPU 核心的局部数据
struct PerCpu {
  /// 核心 ID
  size_t core_id{0};

  /// 当前运行的任务
  TaskControlBlock* running_task{nullptr};
  /// 空闲任务
  TaskControlBlock* idle_task{nullptr};
  /// 调度数据 (RunQueue) 指针
  CpuSchedData* sched_data{nullptr};

  /// @name 构造/析构函数
  /// @{
  explicit PerCpu(size_t id) : core_id(id) {}

  PerCpu() = default;
  PerCpu(const PerCpu&) = default;
  PerCpu(PerCpu&&) = default;
  auto operator=(const PerCpu&) -> PerCpu& = default;
  auto operator=(PerCpu&&) -> PerCpu& = default;
  ~PerCpu() = default;
  /// @}
} __attribute__((aligned(SIMPLEKERNEL_PER_CPU_ALIGN_SIZE)));

static_assert(sizeof(PerCpu) <= SIMPLEKERNEL_PER_CPU_ALIGN_SIZE,
              "PerCpu size should not exceed cache line size");