Linux内核中工作队列的使用work_struct,delayed_work

初始化工作队列

调度工作队列

取消工作队列

#include <linux/module.h>
#include <linux/sched.h>
#include <linux/kthread.h>
#include <linux/err.h>
#include <linux/delay.h>

static struct work_struct test_work;
static struct delayed_work test_delayed_work;

static void test_func(struct work_struct *work)
{
	printk("%s, %d, %ld\n", __func__, __LINE__, jiffies);

}

static void test_delayed_func(struct work_struct *work)
{
	printk("%s, %d, %ld\n", __func__, __LINE__, jiffies);

}

static int __init test_init(void)
{
	int ret;
	printk("%s, %d, %ld\n", __func__, __LINE__, jiffies);

	INIT_WORK(&test_work, test_func);
	ret = schedule_work(&test_work);

	INIT_DELAYED_WORK(&test_delayed_work, test_delayed_func);
	ret = schedule_delayed_work(&test_delayed_work, 5 * HZ);

	printk("%s, %d, %ld\n", __func__, __LINE__, jiffies);

	return 0;
}

static void __exit test_exit(void)
{
	printk("%s, %d, %ld\n", __func__, __LINE__, jiffies);
	cancel_work_sync(&test_work);
	printk("%s, %d, %ld\n", __func__, __LINE__, jiffies);
	cancel_delayed_work_sync(&test_delayed_work);
	printk("%s, %d, %ld\n", __func__, __LINE__, jiffies);
}

module_init(test_init);
module_exit(test_exit);
MODULE_AUTHOR("tony");
MODULE_DESCRIPTION("test");
MODULE_LICENSE("GPL");
MODULE_ALIAS("test");