los_task_pri.h

/*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 *    conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 *    of conditions and the following disclaimer in the documentation and/or other materials
 *    provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 *    to endorse or promote products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _LOS_TASK_PRI_H
#define _LOS_TASK_PRI_H

#include "los_task.h"
#include "los_percpu_pri.h"
#include "los_spinlock.h"
#ifdef LOSCFG_SCHED_DEBUG
#include "los_stat_pri.h"
#endif
#include "los_stackinfo_pri.h"
#include "los_futex_pri.h"
#include "los_signal.h"
#ifdef LOSCFG_KERNEL_CPUP
#include "los_cpup_pri.h"
#endif

#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

/**
 * @ingroup los_task
 * Define task siginal types.
 *
 * Task siginal types.
 */
#define SIGNAL_NONE                 0U			//无信号
#define SIGNAL_KILL                 (1U << 0)	//干掉
#define SIGNAL_SUSPEND              (1U << 1)	//挂起
#define SIGNAL_AFFI                 (1U << 2)	//CPU 亲和性,一个任务被切换后被同一个CPU再次执行,则亲和力高

/* scheduler lock */
extern SPIN_LOCK_S g_taskSpin;//任务自旋锁
#define SCHEDULER_LOCK(state)       LOS_SpinLockSave(&g_taskSpin, &(state))
#define SCHEDULER_UNLOCK(state)     LOS_SpinUnlockRestore(&g_taskSpin, state)

/* default and non-running task's ownership id */
#define OS_TASK_INVALID_CPUID       0xFFFF

/**
 * @ingroup los_task
 * Null task ID
 *
 */
#define OS_TASK_ERRORID             0xFFFFFFFF

/**
 * @ingroup los_task
 * Define a usable task priority.
 *
 * Highest task priority.
 */
#define OS_TASK_PRIORITY_HIGHEST    0	//任务最高优先级,软时钟任务就是最高级任务,见于 OsSwtmrTaskCreate

/**
 * @ingroup los_task
 * Define a usable task priority.
 *
 * Lowest task priority.
 */
#define OS_TASK_PRIORITY_LOWEST     31 //任务最低优先级

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The task is init.
 */
#define OS_TASK_STATUS_INIT         0x0001U //初始化状态

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The task is ready.
 */
#define OS_TASK_STATUS_READY        0x0002U //就绪状态的任务都将插入就绪队列,注意就绪队列的本质是个双向链表

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The task is running.
 */
#define OS_TASK_STATUS_RUNNING      0x0004U //运行状态

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The task is suspended.
 */
#define OS_TASK_STATUS_SUSPENDED    0x0008U

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The task is blocked.
 */
#define OS_TASK_STATUS_PENDING      0x0010U

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The task is delayed.
 */
#define OS_TASK_STATUS_DELAY        0x0020U //延期状态

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The time for waiting for an event to occur expires.
 */
#define OS_TASK_STATUS_TIMEOUT      0x0040U	//任务超时

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The task is pend for a period of time.
 */
#define OS_TASK_STATUS_PEND_TIME    0x0080U

#define OS_TASK_STATUS_BLOCKED      (OS_TASK_STATUS_INIT | OS_TASK_STATUS_PENDING | \
                                     OS_TASK_STATUS_DELAY | OS_TASK_STATUS_PEND_TIME)

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The task is exit.
 */
#define OS_TASK_STATUS_EXIT         0x0100U

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The task control block is unused.
 */
#define OS_TASK_STATUS_UNUSED       0x0200U

/**
 * @ingroup los_task
 * Flag that indicates the task or task control block status.
 *
 * The task is joinable.
 */
#define OS_TASK_FLAG_PTHREAD_JOIN   0x0400U //主task和子task连在一块不分离

/**
 * @ingroup los_task
 * Flag that indicates the task property.
 *
 * The task is system-level task, like idle, swtmr and etc.
 */
#define OS_TASK_FLAG_SYSTEM_TASK    0x1000U	//系统任务

/**
 * @ingroup los_task
 * Flag that indicates the task property.
 *
 * The task is no-delete system task, like resourceTask. //该任务是不可删除的系统任务，如资源回收任务
 */
#define OS_TASK_FLAG_NO_DELETE    0x2000U

/**
 * @ingroup los_task
 * Flag that indicates the task property.
 *
 * Kills the thread during process exit.
 */
#define OS_TASK_FLAG_EXIT_KILL       0x4000U //在进程退出期间一同被干掉的任务

/**
 * @ingroup los_task
 * Flag that indicates the task property.
 *
 * Specifies the process creation task.
 */
#define OS_TASK_FLAG_SPECIFIES_PROCESS 0x0U //创建指定任务 例如: cat weharmony.net 实现 

/**
 * @ingroup los_task
 * Boundary on which the stack size is aligned.
 *
 */
#define OS_TASK_STACK_SIZE_ALIGN    16U //堆栈大小对齐的边界

/**
 * @ingroup los_task
 * Boundary on which the stack address is aligned.
 *
 */
#define OS_TASK_STACK_ADDR_ALIGN    8U

/**
 * @ingroup los_task
 * Number of usable task priorities.
 */	//可用任务优先级的数量
#define OS_TSK_PRINUM               (OS_TASK_PRIORITY_LOWEST - OS_TASK_PRIORITY_HIGHEST + 1)

/**
* @ingroup  los_task
* @brief Check whether a task ID is valid.
*
* @par Description:
* This API is used to check whether a task ID, excluding the idle task ID, is valid.
* @attention None.
*
* @param  taskID [IN] Task ID.
*
* @retval 0 or 1. One indicates that the task ID is invalid, whereas zero indicates that the task ID is valid.
* @par Dependency:
* <ul><li>los_task_pri.h: the header file that contains the API declaration.</li></ul>
* @see
*/
#define OS_TSK_GET_INDEX(taskID) (taskID)

/**
* @ingroup  los_task
* @brief Obtain the pointer to a task control block.
*
* @par Description:
* This API is used to obtain the pointer to a task control block using a corresponding parameter.
* @attention None.
*
* @param  ptr [IN] Parameter used for obtaining the task control block.
*
* @retval Pointer to the task control block.
* @par Dependency:
* <ul><li>los_task_pri.h: the header file that contains the API declaration.</li></ul>
* @see
*/
#define OS_TCB_FROM_PENDLIST(ptr) LOS_DL_LIST_ENTRY(ptr, LosTaskCB, pendList)
//通过pendList取出TCB,用于挂入链表节点时使用 pendList的情况 
/**
* @ingroup  los_task
* @brief Obtain the pointer to a task control block.
*
* @par Description:
* This API is used to obtain the pointer to a task control block that has a specified task ID.
* @attention None.
*
* @param  TaskID [IN] Task ID.
*
* @retval Pointer to the task control block.
* @par Dependency:
* <ul><li>los_task_pri.h: the header file that contains the API declaration.</li></ul>
* @see
*/
#define OS_TCB_FROM_TID(taskID) (((LosTaskCB *)g_taskCBArray) + (taskID))
//通过Tid找到TCB
#ifndef LOSCFG_STACK_POINT_ALIGN_SIZE
#define LOSCFG_STACK_POINT_ALIGN_SIZE                       (sizeof(UINTPTR) * 2)
#endif

#define OS_TASK_RESOURCE_STATIC_SIZE    0x1000	//4K
#define OS_TASK_RESOURCE_FREE_PRIORITY  5		//回收资源任务的优先级
#define OS_RESOURCE_EVENT_MASK          0xFF	//资源事件的掩码
#define OS_RESOURCE_EVENT_OOM           0x02	//内存溢出事件
#define OS_RESOURCE_EVENT_FREE          0x04	//资源释放事件
#define OS_TCB_NAME_LEN 32

typedef struct {
    VOID            *stackPointer;      /**< Task stack pointer \n  */	//内核栈指针位置(SP)
    UINT16          taskStatus;         /**< Task status \n  */			//各种状态标签，可以拥有多种标签，按位标识
    UINT16          priority;           /**< Task priority \n  */		//任务优先级[0:31],默认是31级
    UINT16          policy;				//任务的调度方式(三种 .. LOS_SCHED_RR )
    UINT64          startTime;          /**< The start time of each phase of task \n  *///任务开始时间
    UINT64          irqStartTime;       /**< Interrupt start time \n  *///任务中断开始时间
    UINT32          irqUsedTime;        /**< Interrupt consumption time \n  *///任务中断恢复时间
    UINT32          initTimeSlice;      /**< Task init time slice \n  *///任务初始的时间片
    INT32           timeSlice;          /**< Task remaining time slice \n  *///任务剩余时间片
    UINT32          waitTimes;          /**< Task delay time, tick number \n  *///设置任务调度延期时间
    SortLinkList    sortList;           /**< Task sortlink node \n  */	//任务排序链表节点
    UINT32          stackSize;          /**< Task stack size \n  */		//内核态栈大小,内存来自内核空间
    UINTPTR         topOfStack;         /**< Task stack top \n  */		//内核态栈顶 bottom = top + size
    UINT32          taskID;             /**< Task ID \n  */				//任务ID，任务池本质是一个大数组，ID就是数组的索引，默认 < 128
    TSK_ENTRY_FUNC  taskEntry;          /**< Task entrance function \n  */	//任务执行入口函数
    VOID            *joinRetval;        /**< pthread adaption \n  */	//用来存储join线程的返回值
    VOID            *taskMux;           /**< Task-held mutex \n  */		//task在等哪把锁
    VOID            *taskEvent;         /**< Task-held event \n  */		//task在等哪个事件
    UINTPTR         args[4];            /**< Parameter, of which the maximum number is 4 \n  */	//入口函数的参数 例如 main (int argc,char *argv[])
    CHAR            taskName[OS_TCB_NAME_LEN]; /**< Task name \n  */	//任务的名称
    LOS_DL_LIST     pendList;           /**< Task pend node \n  */		//如果任务阻塞时就通过它挂到各种阻塞情况的链表上,比如OsTaskWait时
    LOS_DL_LIST     threadList;         /**< thread list \n  */			//挂到所属进程的线程链表上
    UINT32          eventMask;          /**< Event mask \n  */			//任务对哪些事件进行屏蔽
    UINT32          eventMode;          /**< Event mode \n  */			//事件三种模式(LOS_WAITMODE_AND,LOS_WAITMODE_OR,LOS_WAITMODE_CLR)
    UINT32          priBitMap;          /**< BitMap for recording the change of task priority,	//任务在执行过程中优先级会经常变化，这个变量用来记录所有曾经变化
                                             the priority can not be greater than 31 \n  */			//过的优先级，例如 ..01001011 曾经有过 0,1,3,6 优先级
#ifdef LOSCFG_KERNEL_CPUP
    OsCpupBase      taskCpup;           /**< task cpu usage \n  */
#endif
    INT32           errorNo;            /**< Error Num \n  */
    UINT32          signal;             /**< Task signal \n  */ //任务信号类型,(SIGNAL_NONE,SIGNAL_KILL,SIGNAL_SUSPEND,SIGNAL_AFFI)
    sig_cb          sig;				//信号控制块，用于异步通信,类似于 linux singal模块
#ifdef LOSCFG_KERNEL_SMP
    UINT16          currCpu;            /**< CPU core number of this task is running on \n  */	//正在运行此任务的CPU内核号
    UINT16          lastCpu;            /**< CPU core number of this task is running on last time \n  */ //上次运行此任务的CPU内核号
    UINT16          cpuAffiMask;        /**< CPU affinity mask, support up to 16 cores \n  */	//CPU亲和力掩码，最多支持16核，亲和力很重要，多核情况下尽量一个任务在一个CPU核上运行，提高效率
#ifdef LOSCFG_KERNEL_SMP_TASK_SYNC
    UINT32          syncSignal;         /**< Synchronization for signal handling \n  */	//用于CPU之间 同步信号
#endif
#ifdef LOSCFG_KERNEL_SMP_LOCKDEP //死锁检测开关
    LockDep         lockDep;
#endif
#endif
#ifdef LOSCFG_SCHED_DEBUG
    SchedStat       schedStat;          /**< Schedule statistics \n  */
#endif
    UINTPTR         userArea;			///< 用户空间的堆区开始位置
    UINTPTR         userMapBase;		///< 用户空间的栈顶位置,内存来自用户空间,和topOfStack有本质的区别.
    UINT32          userMapSize;        /**< user thread stack size ,real size : userMapSize + USER_STACK_MIN_SIZE \n  *///用户栈大小
    UINT32          processID;          /**< Which belong process \n  *///所属进程ID
    FutexNode       futex;				///< 实现快锁功能
    LOS_DL_LIST     joinList;           /**< join list \n  */ //联结链表,允许任务之间相互释放彼此
    LOS_DL_LIST     lockList;           /**< Hold the lock list \n 该链表上挂的都是已持有的锁 */
    UINTPTR         waitID;             /**< Wait for the PID or GID of the child process \n  */
    UINT16          waitFlag;           /**< The type of child process that is waiting, belonging to a group or parent,
                                             a specific child process, or any child process \n 以什么样的方式等待子进程结束(OS_TASK_WAIT_PROCESS | OS_TASK_WAIT_GID | ..) */
#ifdef LOSCFG_KERNEL_LITEIPC
    LOS_DL_LIST     msgListHead;		///< 消息队列头结点,上面挂的都是任务要读的消息
    BOOL            accessMap[LOSCFG_BASE_CORE_TSK_LIMIT];///< 访问图,指的是task之间是否能访问的标识,LOSCFG_BASE_CORE_TSK_LIMIT 为任务池总数
#endif
#ifdef LOSCFG_KERNEL_PERF
    UINTPTR         pc;
    UINTPTR         fp;
#endif
} LosTaskCB;
//LosTask结构体是给外部使用的
typedef struct {
    LosTaskCB *runTask;
    LosTaskCB *newTask;
} LosTask;

struct ProcessSignalInfo {//进程信号描述符
    siginfo_t *sigInfo;       /**< Signal to be dispatched \n  要发送的信号*/
    LosTaskCB *defaultTcb;    /**< Default TCB \n 默认task,默认接收信号的任务. */
    LosTaskCB *unblockedTcb;  /**< The signal unblock on this TCB \n 信号在此TCB上解除阻塞  */
    LosTaskCB *awakenedTcb;   /**< This TCB was awakened \n  即 任务在等待这个信号,此信号一来任务被唤醒.*/
    LosTaskCB *receivedTcb;   /**< This TCB received the signal \n 如果没有屏蔽信号,任务将接收这个信号. */
};

typedef int (*ForEachTaskCB)(LosTaskCB *tcb, void *arg);//回调任务函数,例如:进程被kill 9 时,通知所有任务善后处理

/**
 * @ingroup los_task
 * Maximum number of tasks.
 *
 */
extern UINT32 g_taskMaxNum;///< 任务最大数量 默认128个


/**
 * @ingroup los_task
 * Starting address of a task.
 *
 */
extern LosTaskCB *g_taskCBArray;///< 外部变量 任务池 默认128个

/**
 * @ingroup los_task
 * Time slice structure.
 */
typedef struct {//时间片结构体，任务轮询
    LosTaskCB *task; /**< Current running task \n 当前运行着的任务*/
    UINT16 time;     /**< Expiration time point \n 过期时间点*/
    UINT16 timeout;  /**< Expiration duration \n 有效期*/
} OsTaskRobin;
//获取当前CPU  core运行的任务
STATIC INLINE LosTaskCB *OsCurrTaskGet(VOID)
{
    return (LosTaskCB *)ArchCurrTaskGet();
}
///告诉协处理器当前任务使用范围为内核空间 
STATIC INLINE VOID OsCurrTaskSet(LosTaskCB *task)
{
    ArchCurrTaskSet(task);
}
///告诉协处理器当前任务使用范围为 用户空间
STATIC INLINE VOID OsCurrUserTaskSet(UINTPTR thread)
{
    ArchCurrUserTaskSet(thread);
}
///通过任务ID获取任务实体，task由任务池分配，本质是个数组，彼此都挨在一块
STATIC INLINE LosTaskCB *OsGetTaskCB(UINT32 taskID)
{
    return OS_TCB_FROM_TID(taskID);
}
///任务是否在使用
STATIC INLINE BOOL OsTaskIsUnused(const LosTaskCB *taskCB)
{
    if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {//在freelist中的任务都是 OS_TASK_STATUS_UNUSED 状态
        return TRUE;
    }

    return FALSE;
}
///任务是否在运行
STATIC INLINE BOOL OsTaskIsRunning(const LosTaskCB *taskCB)
{
    if (taskCB->taskStatus & OS_TASK_STATUS_RUNNING) {//一个CPU core 只能有一个 OS_TASK_STATUS_RUNNING task
        return TRUE;
    }

    return FALSE;
}
///任务是否不再活动
STATIC INLINE BOOL OsTaskIsInactive(const LosTaskCB *taskCB)
{
    if (taskCB->taskStatus & (OS_TASK_STATUS_UNUSED | OS_TASK_STATUS_INIT | OS_TASK_STATUS_EXIT)) {//三个标签有一个代表不在活动
        return TRUE;
    }

    return FALSE;
}

STATIC INLINE BOOL OsTaskIsPending(const LosTaskCB *taskCB)
{
    if (taskCB->taskStatus & OS_TASK_STATUS_PENDING) {
        return TRUE;
    }

    return FALSE;
}

STATIC INLINE BOOL OsTaskIsKilled(const LosTaskCB *taskCB)
{
    if (taskCB->taskStatus & OS_TASK_FLAG_EXIT_KILL) {
        return TRUE;
    }

    return FALSE;
}

#define OS_TID_CHECK_INVALID(taskID) ((UINT32)(taskID) >= g_taskMaxNum)//是否有无效的任务 > 128

/* get task info */
#define OS_ALL_TASK_MASK  0xFFFFFFFF

#define OS_TASK_WAIT_ANYPROCESS (1 << 0U)					///< 任务等待任何进程出现
#define OS_TASK_WAIT_PROCESS    (1 << 1U)					///< 任务等待进程出现
#define OS_TASK_WAIT_GID        (1 << 2U)					///< 任务等待组ID
#define OS_TASK_WAIT_SEM        (OS_TASK_WAIT_GID + 1)		///< 任务等待信号量发生
#define OS_TASK_WAIT_QUEUE      (OS_TASK_WAIT_SEM + 1)		///< 任务等待队列到来
#define OS_TASK_WAIT_JOIN       (OS_TASK_WAIT_QUEUE + 1)	///< 任务等待
#define OS_TASK_WAIT_SIGNAL     (OS_TASK_WAIT_JOIN + 1) 	///< 任务等待信号的到来
#define OS_TASK_WAIT_LITEIPC    (OS_TASK_WAIT_SIGNAL + 1)	///< 任务等待liteipc到来
#define OS_TASK_WAIT_MUTEX      (OS_TASK_WAIT_LITEIPC + 1)	///< 任务等待MUTEX到来
#define OS_TASK_WAIT_FUTEX      (OS_TASK_WAIT_MUTEX + 1)	///< 任务等待FUTEX到来
#define OS_TASK_WAIT_EVENT      (OS_TASK_WAIT_FUTEX + 1) 	///< 任务等待事件发生
#define OS_TASK_WAIT_COMPLETE   (OS_TASK_WAIT_EVENT + 1)	///< 任务等待完成

//设置事件阻塞掩码,即设置任务的等待事件.
STATIC INLINE VOID OsTaskWaitSetPendMask(UINT16 mask, UINTPTR lockID, UINT32 timeout)
{
    LosTaskCB *runTask = OsCurrTaskGet();
    runTask->waitID = lockID;
    runTask->waitFlag = mask;
    (VOID)timeout;
}

//清除事件阻塞掩码,即任务不再等待任何事件.
STATIC INLINE VOID OsTaskWakeClearPendMask(LosTaskCB *resumeTask)
{
    resumeTask->waitID = 0;
    resumeTask->waitFlag = 0;
}

extern UINT32 OsTaskSetDetachUnsafe(LosTaskCB *taskCB);
extern VOID OsTaskJoinPostUnsafe(LosTaskCB *taskCB);
extern UINT32 OsTaskJoinPendUnsafe(LosTaskCB *taskCB);
extern BOOL OsTaskCpuAffiSetUnsafe(UINT32 taskID, UINT16 newCpuAffiMask, UINT16 *oldCpuAffiMask);
extern VOID OsTaskSchedule(LosTaskCB *, LosTaskCB *);
extern VOID OsTaskContextLoad(LosTaskCB *newTask);
extern VOID OsIdleTask(VOID);
extern UINT32 OsIdleTaskCreate(VOID);
extern UINT32 OsTaskInit(VOID);
extern UINT32 OsShellCmdDumpTask(INT32 argc, const CHAR **argv);
extern UINT32 OsShellCmdTskInfoGet(UINT32 taskID, VOID *seqfile, UINT16 flag);
extern LosTaskCB *OsGetMainTask(VOID);
extern VOID OsSetMainTask(VOID);
extern UINT32 OsGetIdleTaskId(VOID);
extern VOID OsTaskEntry(UINT32 taskID);
extern SortLinkAttribute *OsTaskSortLinkGet(VOID);
extern VOID OsTaskProcSignal(VOID);
extern UINT32 OsTaskDeleteUnsafe(LosTaskCB *taskCB, UINT32 status, UINT32 intSave);
extern VOID OsTaskResourcesToFree(LosTaskCB *taskCB);
extern VOID OsRunTaskToDelete(LosTaskCB *taskCB);
extern UINT32 OsCreateUserTask(UINT32 processID, TSK_INIT_PARAM_S *initParam);
extern INT32 OsSetTaskName(LosTaskCB *taskCB, const CHAR *name, BOOL setPName);
extern VOID OsTaskCBRecycleToFree(VOID);
extern VOID OsTaskExitGroup(UINT32 status);
extern VOID OsTaskToExit(LosTaskCB *taskCB, UINT32 status);
extern VOID OsExecDestroyTaskGroup(VOID);
extern UINT32 OsUserTaskOperatePermissionsCheck(LosTaskCB *taskCB);
extern UINT32 OsUserProcessOperatePermissionsCheck(LosTaskCB *taskCB, UINT32 processID);
extern INT32 OsTcbDispatch(LosTaskCB *stcb, siginfo_t *info);
extern VOID OsWriteResourceEvent(UINT32 events);
extern VOID OsWriteResourceEventUnsafe(UINT32 events);
extern UINT32 OsResourceFreeTaskCreate(VOID);

#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */

#endif /* _LOS_TASK_PRI_H */