per_cpu.hpp File Reference

#include <cpu_io.h>
#include <etl/singleton.h>
#include <unistd.h>
#include <array>
#include <atomic>
#include <cstddef>
#include <cstdint>
#include <cstdlib>

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Classes
struct	per_cpu::PerCpu
	每个 CPU 核心的局部数据 More...

Namespaces
namespace	per_cpu

Typedefs
using	per_cpu::PerCpuArraySingleton = etl::singleton< std::array< PerCpu, SIMPLEKERNEL_MAX_CORE_COUNT > >
	PerCpu 数组单例类型

Functions
struct per_cpu::PerCpu	per_cpu::__attribute__ ((aligned(SIMPLEKERNEL_PER_CPU_ALIGN_SIZE)))
static __always_inline auto	per_cpu::GetCurrentCore () -> PerCpu &
	获取当前核心的 PerCpu 数据
构造/析构函数
	PerCpu (size_t id)
	PerCpu ()=default
	PerCpu (const PerCpu &)=default
	PerCpu (PerCpu &&)=default
auto	operator= (const PerCpu &) -> PerCpu &=default
auto	operator= (PerCpu &&) -> PerCpu &=default
	~PerCpu ()=default

Variables
size_t	core_id {0}
	核心 ID
TaskControlBlock *	running_task {nullptr}
	当前运行的任务
TaskControlBlock *	idle_task {nullptr}
	空闲任务
CpuSchedData *	sched_data {nullptr}
	调度数据 (RunQueue) 指针

Function Documentation

operator=() [1/2]

auto __attribute__::operator= ( const PerCpu &  ) -> PerCpu &=default

default

operator=() [2/2]

auto __attribute__::operator= ( PerCpu &&  ) -> PerCpu &=default

default

PerCpu() [1/4]

__attribute__::PerCpu ( )

default

PerCpu() [2/4]

__attribute__::PerCpu ( const PerCpu &  )

default

PerCpu() [3/4]

__attribute__::PerCpu ( PerCpu &&  )

default

PerCpu() [4/4]

__attribute__::PerCpu ( size_t  id )

explicit

Definition at line 12 of file per_cpu.hpp.

{
 
struct PerCpu {
  size_t core_id{0};
 
  TaskControlBlock* running_task{nullptr};
  TaskControlBlock* idle_task{nullptr};
  CpuSchedData* sched_data{nullptr};
 
  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");
 
using PerCpuArraySingleton =
    etl::singleton<std::array<PerCpu, SIMPLEKERNEL_MAX_CORE_COUNT>>;
 
static __always_inline auto GetCurrentCore() -> PerCpu& {
  return PerCpuArraySingleton::instance()[cpu_io::GetCurrentCoreId()];
}
 
}  // namespace per_cpu

~PerCpu()

__attribute__::~PerCpu ( )

default

Variable Documentation

core_id

size_t core_id {0}

核心 ID

Definition at line 1 of file per_cpu.hpp.

idle_task

TaskControlBlock* idle_task {nullptr}

空闲任务

Definition at line 6 of file per_cpu.hpp.

running_task

TaskControlBlock* running_task {nullptr}

当前运行的任务

Definition at line 4 of file per_cpu.hpp.

sched_data

CpuSchedData* sched_data {nullptr}

调度数据 (RunQueue) 指针

Definition at line 8 of file per_cpu.hpp.