#include
#include
#include
#include
#include
//#define del_work
#define workqueu
//#define hrtime
//#define list_timer
struct timer{
struct delayed_work delaywork;
struct workqueue_struct *monitor_wqueue;
struct hrtimer hrtimer;
struct work_struct workstruct;
struct timer_list timerlist;
};
void timer_work(struct work_struct *work)
{
static int count = 0;
#ifdef del_work
struct timer *timer_fun = container_of(work, struct timer, delaywork.work);
schedule_delayed_work(&timer_fun->delaywork, msecs_to_jiffies(1000));
if(count == 10){
cancel_delayed_work(&timer_fun->delaywork);
}
#endif
#ifdef workqueu
struct timer *timer_fun = container_of(work, struct timer, delaywork.work);
queue_delayed_work(timer_fun->monitor_wqueue, &timer_fun->delaywork,HZ);
if(count == 10){
cancel_delayed_work(&timer_fun->delaywork);
}
#endif
#ifdef hrtime
struct timer *timer_fun = container_of(work, struct timer, workstruct);
if(count < 10){
hrtimer_start(&timer_fun->hrtimer, ktime_set(1,0), HRTIMER_MODE_REL);
}
#endif
printk("count:%d\n",count++);
}
#ifdef hrtime
static enum hrtimer_restart hrtimer_test(struct hrtimer *handle)
{
printk("=============%s=================\n",__FUNCTION__);
struct timer *td = container_of(handle, struct timer, hrtimer);
schedule_work(&td->workstruct);
return HRTIMER_NORESTART;
}
#endif
#ifdef list_timer
static void timerlist_work(unsigned long _data)
{
struct timer *data = (struct timer *)_data;
static int count = 0;
if(count < 10){
mod_timer(&data->timerlist, jiffies + msecs_to_jiffies(1000));
}
printk("%d seconds\n",count++);
}
#endif
int __init timer_init(void)
{
struct timer *timer = NULL;
printk("==========timer_init=============\n");
timer = kzalloc(sizeof(struct timer), GFP_KERNEL);
if (!timer) {
return -ENOMEM;
}
#ifdef del_work
INIT_DELAYED_WORK(&timer->delaywork, timer_work);
schedule_delayed_work(&timer->delaywork, msecs_to_jiffies(1000));
#endif
#ifdef workqueu
INIT_DELAYED_WORK(&timer->delaywork, timer_work);
timer->monitor_wqueue =
create_singlethread_workqueue("timer_test");
if (!timer->monitor_wqueue) {
return -ESRCH;
}
queue_delayed_work(timer->monitor_wqueue, &timer->delaywork,HZ);
#endif
#ifdef hrtime
INIT_WORK(&timer->workstruct, timer_work);
hrtimer_init(&timer->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
timer->hrtimer.function = hrtimer_test;
hrtimer_start(&timer->hrtimer, ktime_set(1,0), HRTIMER_MODE_REL);
#endif
#ifdef list_timer
setup_timer(&timer->timerlist, timerlist_work, (unsigned long)timer);
mod_timer(&timer->timerlist, jiffies + msecs_to_jiffies(1000));
#endif
return 0;
}
void __exit timer_exit(void)
{
printk("============timer_exit===============\n");
}
module_init(timer_init);
module_exit(timer_exit);
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