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#ifndef _linux_POSIX_TIMERS_H
#define _linux_POSIX_TIMERS_H
#include <linux/spinlock.h>
#include <linux/list.h>
struct k_clock_abs {
struct list_head list;
spinlock_t lock;
};
struct k_clock {
int res; /* in nano seconds */
struct k_clock_abs *abs_struct;
int (*clock_set) (struct timespec * tp);
int (*clock_get) (struct timespec * tp);
int (*nsleep) (int flags,
struct timespec * new_setting,
struct itimerspec * old_setting);
int (*timer_set) (struct k_itimer * timr, int flags,
struct itimerspec * new_setting,
struct itimerspec * old_setting);
int (*timer_del) (struct k_itimer * timr);
void (*timer_get) (struct k_itimer * timr,
struct itimerspec * cur_setting);
};
struct now_struct {
unsigned long jiffies;
};
#define posix_get_now(now) (now)->jiffies = jiffies;
#define posix_time_before(timer, now) \
time_before((timer)->expires, (now)->jiffies)
#define posix_bump_timer(timr, now) \
do { \
long delta, orun; \
delta = now.jiffies - (timr)->it_timer.expires; \
if (delta >= 0) { \
orun = 1 + (delta / (timr)->it_incr); \
(timr)->it_timer.expires += orun * (timr)->it_incr; \
(timr)->it_overrun += orun; \
} \
}while (0)
#endif
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