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#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include "include/log.h"
#include "include/list.h"
#include "include/timer.h"
#include "include/ucix.h"
/* when using this file, alarm() is used */
static struct list_head timers;
struct timer {
struct list_head list;
int count;
int timeout;
timercb_t timercb;
};
void timer_add(timercb_t timercb, int timeout)
{
struct timer *timer;
timer = malloc(sizeof(struct timer));
if(!timer)
{
log_printf("unable to get timer buffer\n");
return;
}
timer->count = 0;
timer->timeout = timeout;
timer->timercb = timercb;
INIT_LIST_HEAD(&timer->list);
list_add(&timer->list, &timers);
}
static void timer_proc(int signo)
{
struct list_head *p;
list_for_each(p, &timers)
{
struct timer *q = container_of(p, struct timer, list);
q->count++;
if(!(q->count%q->timeout))
{
q->timercb();
}
}
alarm(1);
}
void timer_init(void)
{
struct sigaction s;
INIT_LIST_HEAD(&timers);
s.sa_handler = timer_proc;
s.sa_flags = 0;
sigaction(SIGALRM, &s, NULL);
alarm(1);
}
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