Task
[Kernel]

数据结构
struct	tagTskInitParam
	Define the structure of the parameters used for task creation. 更多...
struct	tagTskInfo
	Task information structure. 更多...
宏定义
#define	LOS_ERRNO_TSK_NO_MEMORY   LOS_ERRNO_OS_FATAL(LOS_MOD_TSK, 0x00)
	Task error code: Insufficient memory for task creation.
#define	LOS_ERRNO_TSK_PTR_NULL   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x01)
	Task error code: Null parameter.
#define	LOS_ERRNO_TSK_STKSZ_NOT_ALIGN   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x02)
	Task error code: The task stack is not aligned.
#define	LOS_ERRNO_TSK_PRIOR_ERROR   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x03)
	Task error code: Incorrect task priority.
#define	LOS_ERRNO_TSK_ENTRY_NULL   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x04)
	Task error code: The task entrance is NULL.
#define	LOS_ERRNO_TSK_NAME_EMPTY   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x05)
	Task error code: The task name is NULL.
#define	LOS_ERRNO_TSK_STKSZ_TOO_SMALL   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x06)
	Task error code: The task stack size is too small.
#define	LOS_ERRNO_TSK_ID_INVALID   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x07)
	Task error code: Invalid task ID.
#define	LOS_ERRNO_TSK_ALREADY_SUSPENDED   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x08)
	Task error code: The task is already suspended.
#define	LOS_ERRNO_TSK_NOT_SUSPENDED   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x09)
	Task error code: The task is not suspended.
#define	LOS_ERRNO_TSK_NOT_CREATED   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x0a)
	Task error code: The task is not created.
#define	LOS_ERRNO_TSK_MSG_NONZERO   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x0c)
	Task error code: The task message is nonzero.
#define	LOS_ERRNO_TSK_DELAY_IN_INT   LOS_ERRNO_OS_FATAL(LOS_MOD_TSK, 0x0d)
	Task error code: The task delay occurs during an interrupt.
#define	LOS_ERRNO_TSK_DELAY_IN_LOCK   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x0e)
	Task error code: The task delay occurs when the task is locked.
#define	LOS_ERRNO_TSK_YIELD_INVALID_TASK   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x0f)
	Task error code: The task that is being scheduled is invalid.
#define	LOS_ERRNO_TSK_YIELD_NOT_ENOUGH_TASK   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x10)
	Task error code: Only one task or no task is available for scheduling.
#define	LOS_ERRNO_TSK_TCB_UNAVAILABLE   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x11)
	Task error code: No free task control block is available.
#define	LOS_ERRNO_TSK_HOOK_NOT_MATCH   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x12)
	Task error code: The task hook function is not matchable.
#define	LOS_ERRNO_TSK_HOOK_IS_FULL   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x13)
	Task error code: The number of task hook functions exceeds the permitted upper limit.
#define	LOS_ERRNO_TSK_OPERATE_IDLE   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x14)
	Task error code: The operation is performed on the idle task.
#define	LOS_ERRNO_TSK_SUSPEND_LOCKED   LOS_ERRNO_OS_FATAL(LOS_MOD_TSK, 0x15)
	Task error code: The task that is being suspended is locked.
#define	LOS_ERRNO_TSK_FREE_STACK_FAILED   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x17)
	Task error code: The task stack fails to be freed.
#define	LOS_ERRNO_TSK_STKAREA_TOO_SMALL   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x18)
	Task error code: The task stack area is too small.
#define	LOS_ERRNO_TSK_ACTIVE_FAILED   LOS_ERRNO_OS_FATAL(LOS_MOD_TSK, 0x19)
	Task error code: The task fails to be activated.
#define	LOS_ERRNO_TSK_CONFIG_TOO_MANY   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x1a)
	Task error code: Too many task configuration items.
#define	LOS_ERRNO_TSK_CP_SAVE_AREA_NOT_ALIGN   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x1b)
	Task error code:
#define	LOS_ERRNO_TSK_MSG_Q_TOO_MANY   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x1d)
	Task error code:
#define	LOS_ERRNO_TSK_CP_SAVE_AREA_NULL   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x1e)
	Task error code:
#define	LOS_ERRNO_TSK_SELF_DELETE_ERR   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x1f)
	Task error code:
#define	LOS_ERRNO_TSK_STKSZ_TOO_LARGE   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x20)
	Task error code: The task stack size is too large.
#define	LOS_ERRNO_TSK_SUSPEND_SWTMR_NOT_ALLOWED   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x21)
	Task error code: Suspending software timer task is not allowed.
#define	LOS_ERRNO_TSK_OPERATE_SWTMR   LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x22)
	Task error code: The operation is performed on the software timer task.
#define	LOS_TASK_NAMELEN   32
	Task name length
#define	OS_TASK_SWITCH_INFO_COUNT   (0xA)
	Task switch information structure.
类型定义
typedef VOID(*	TSKSWITCHHOOK )(VOID)
	Define the type of the task switching hook function.
typedef VOID *(*	TSK_ENTRY_FUNC )(UINT32 uwArg)
	Define the type of a task entrance function.
typedef struct tagTskInitParam	TSK_INIT_PARAM_S
	Define the structure of the parameters used for task creation.
typedef struct tagTskInfo	TSK_INFO_S
	Task information structure.
函数
UINT32	LOS_TaskCreateOnly (UINT32 *puwTaskID, TSK_INIT_PARAM_S *pstInitParam)
	Create a task and suspend.
UINT32	LOS_TaskCreate (UINT32 *puwTaskID, TSK_INIT_PARAM_S *pstInitParam)
	Create a task.
UINT32	LOS_TaskResume (UINT32 uwTaskID)
	Resume a task.
UINT32	LOS_TaskSuspend (UINT32 uwTaskID)
	Suspend a task.
UINT32	LOS_TaskDelete (UINT32 uwTaskID)
	Delete a task.
UINT32	LOS_TaskDelay (UINT32 uwTick)
	Delay a task.
VOID	LOS_TaskLock (VOID)
	Lock the task scheduling.
VOID	LOS_TaskUnlock (VOID)
	Unlock the task scheduling.
UINT32	LOS_TaskPriSet (UINT32 uwTaskID, UINT16 usTaskPrio)
	Set a task priority.
UINT32	LOS_CurTaskPriSet (UINT16 usTaskPrio)
	Set the priority of the current running task to a specified priority.
UINT32	LOS_TaskYield (VOID)
	Change the scheduling sequence of tasks with the same priority.
UINT16	LOS_TaskPriGet (UINT32 uwTaskID)
	Obtain a task priority.
UINT32	LOS_CurTaskIDGet (VOID)
	Obtain current running task ID.
UINT32	LOS_NextTaskIDGet (VOID)
	Obtain next running task ID.
CHAR *	LOS_CurTaskNameGet (VOID)
	Obtain next running task ID.
UINT32	LOS_TaskInfoGet (UINT32 uwTaskID, TSK_INFO_S *pstTaskInfo)
	Obtain a task information structure.
UINT32	LOS_TaskStatusGet (UINT32 uwTaskID, UINT32 *puwTaskStatus)
	Obtain the task status.
UINT32	LOS_TaskSwitchInfoGet (UINT32 uwIdx, UINT32 *pTaskSwitchInfo)
	Obtain tasks switch info.
BOOL	LOS_TaskIsRunning (VOID)
	Obtain tasks schduling info.
UINT32	LOS_NewTaskIDGet (VOID)
	Obtain current new task ID.
CHAR *	LOS_TaskNameGet (UINT32 uwTaskID)
	Obtain current new task name.
变量
TSKSWITCHHOOK	g_pfnUsrTskSwitchHook
	User task switching hook function.