ThreadX打印线程信息方法

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ThreadX V6.2.0

1 ThreadX打印线程信息方法

示例代码：

typedef struct
{
    u8 code;    /* 状态码 */
    char *name; /* 名称 */
} tx_thread_status_t;

tx_thread_status_t tx_thread_status[] =
    {
        {TX_READY, "READY"},
        {TX_COMPLETED, "COMPLETED"},
        {TX_TERMINATED, "TERMINATED"},
        {TX_SUSPENDED, "SUSPENDED"},
        {TX_SLEEP, "SLEEP"},
        {TX_QUEUE_SUSP, "QUEUE_SUSP"},
        {TX_SEMAPHORE_SUSP, "SEMAPHORE_SUSP"},
        {TX_EVENT_FLAG, "EVENT_FLAG"},
        {TX_BLOCK_MEMORY, "BLOCK_MEMORY"},
        {TX_BYTE_MEMORY, "BYTE_MEMORY"},
        {TX_IO_DRIVER, "IO_DRIVER"},
        {TX_FILE, "FILE"},
        {TX_TCP_IP, "TCP_IP"},
        {TX_MUTEX_SUSP, "MUTEX_SUSP"},
        {TX_PRIORITY_CHANGE, "PRIORITY_CHANGE"},
};

int osthread(void)
{
    ULONG i;
    TX_THREAD *thread;

    if (_tx_thread_created_count == 0)
    {
        printf("don't have any thread!\r\n");
        return 0;
    }

    thread = _tx_thread_created_ptr;
    printf("No.  Status            Prio  StackSize  CurStackUsed  MaxStackUsed  RunCount   Name\r\n");
    for (i = 0; i < _tx_thread_created_count; i++)
    {
        printf("%-3u  %-16s  %-3u   %-10u %-10u    %-10u    %-10u %s\r\n",
                   i + 1,
                   tx_thread_status[thread->tx_thread_state].name,
                   thread->tx_thread_priority,
                   thread->tx_thread_stack_size,
                   (u32)thread->tx_thread_stack_end - (u32)thread->tx_thread_stack_ptr,
                   (u32)thread->tx_thread_stack_end - (u32)thread->tx_thread_stack_highest_ptr,
                   thread->tx_thread_run_count,
                   thread->tx_thread_name);
        thread = thread->tx_thread_created_previous;
    }

    return 0;
}

说明：
以上代码遍历所有线程，依次打印序号、线程状态、线程优先级、线程栈大小、当前线程栈使用量、最大线程栈使用量、线程运行次数、线程名称。
原理介绍：
（1）ThreadX各线程采用双向链表连接起来，链表头指针为_tx_thread_created_ptr，每新增一个线程都在表头前一个位置插入。知道了线程的连接结构，我们就可以遍历所有的线程。
（2）_tx_thread_created_count表示线程的数量。
注：
为了知道最大线程栈使用量，需要在tx_port.h添加如下定义：

#define TX_ENABLE_STACK_CHECKING

打印效果展示