workqueue

自定义workqueue

头文件

//HZ的定义，HZ=1000ms
#include 
//work_queue相关的宏和结构体 
#include 

1.定义work_func(my_test_work_func)

static void my_test_work_func(struct work_struct *work)
{
    work_num++;
    printk("Work: %d \n",work_num);
    //循环调度这个work
    queue_delayed_work(queue,&mWork,HZ);
}

2.定义work_struct 变量

static struct delayed_work mWork;

3. 绑定work_struct和work_func

INIT_DELAYED_WORK(&mWork,my_test_work_func);

4. 定义workqueue_struct 变量

static struct workqueue_struct *queue = NULL;

5. 创建自己的work_queue

queue = create_singlethread_workqueue("my_work_queue");
if(!queue)
    return -1; 
else
    printk("create workqueue success \n");

6.调度workqueue中的work

queue_delayed_work(queue,&mWork,HZ);