一个线程有几个threadlocal_thread线程

typedef  struct TX_THREAD_STRUCT
{ 

/* The first section of the control block contains critical information that is referenced by the port-specific assembly language code. Any changes in this section could necessitate changes in the assembly language. */
ULONG       tx_thread_id;           /* Control block ID */
ULONG       tx_run_count;           /* Thread's run counter */
VOID_PTR    tx_stack_ptr;           /* Thread's stack pointer */
VOID_PTR    tx_stack_start;         /* Stack starting address */
VOID_PTR    tx_stack_end;           /* Stack ending address */
ULONG       tx_stack_size;          /* Stack size */
ULONG       tx_time_slice;          /* Current time-slice */
ULONG       tx_new_time_slice;      /* New time-slice */
/* Define pointers to the next and previous ready threads. */ 
struct TX_THREAD_STRUCT 
*tx_ready_next,      
*tx_ready_previous;
/* Define the port extension field. This typically is defined to white space, but some ports of ThreadX may need to have additional fields in the thread control block. This is defined in the file tx_port.h. */
TX_THREAD_PORT_EXTENSION
/***************************************************************/  
/* Nothing after this point is referenced by the target-specific assembly language. Hence, information after this point can be added to the control block providing the complete system is recompiled. */
CHAR_PTR    tx_thread_name;         /* Pointer to thread's name */
UINT        tx_priority;            /* Priority of thread (0-31)*/
UINT        tx_state;               /* Thread's execution state */
UINT        tx_delayed_suspend;     /* Delayed suspend flag */
UINT        tx_suspending;          /* Thread suspending flag */
UINT        tx_preempt_threshold;   /* Preemption threshold */
ULONG       tx_priority_bit;        /* Priority ID bit */
/* Define the thread's entry point and input parameter. */
VOID        (*tx_thread_entry)(ULONG);
ULONG       tx_entry_parameter;
/* Define the thread's timer block. This is used for thread sleep and timeout requests. */
TX_INTERNAL_TIMER
tx_thread_timer;
/* Define the thread's cleanup function and associated data. This is used to cleanup various data structures when a thread suspension is lifted or terminated either by the user or a timeout. */
VOID        (*tx_suspend_cleanup)(struct TX_THREAD_STRUCT *);
VOID_PTR	tx_suspend_control_block;
struct TX_THREAD_STRUCT
*tx_suspended_next,
*tx_suspended_previous;
ULONG       tx_suspend_info;
VOID_PTR    tx_additional_suspend_info;
UINT        tx_suspend_option;
UINT        tx_suspend_status;
/* Define a pointer for Green Hills use. */
VOID_PTR    tx_eh_globals;
/* Define pointers to the next and previous threads in the created list. */
struct TX_THREAD_STRUCT 
*tx_created_next,    
*tx_created_previous;
} TX_THREAD;

#define TX_MAX_PRIORITIES 32
TX_THREAD *     _tx_thread_priority_list[TX_MAX_PRIORITIES];

ULONG           _tx_thread_priority_map;