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/*
* BIRD -- Timers
*
* (c) 2013--2017 Ondrej Zajicek <santiago@crfreenet.org>
* (c) 2013--2017 CZ.NIC z.s.p.o.
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_TIMER2_H_
#define _BIRD_TIMER2_H_
#include "nest/bird.h"
#include "lib/buffer.h"
#include "lib/resource.h"
typedef struct timer2
{
resource r;
void (*hook)(struct timer2 *);
void *data;
btime expires; /* 0=inactive */
uint randomize; /* Amount of randomization */
uint recurrent; /* Timer recurrence */
int index;
} timer2;
struct timeloop
{
BUFFER(timer2 *) timers;
btime last_time;
btime real_time;
};
static inline uint timers_count(struct timeloop *loop)
{ return loop->timers.used - 1; }
static inline timer2 *timers_first(struct timeloop *loop)
{ return (loop->timers.used > 1) ? loop->timers.data[1] : NULL; }
extern struct timeloop main_timeloop;
btime current_time(void);
btime current_real_time(void);
#define now (current_time() TO_S)
#define now_real (current_real_time() TO_S)
extern btime boot_time;
timer2 *tm2_new(pool *p);
void tm2_set(timer2 *t, btime when);
void tm2_start(timer2 *t, btime after);
void tm2_stop(timer2 *t);
static inline int
tm2_active(timer2 *t)
{
return t->expires != 0;
}
static inline btime
tm2_remains(timer2 *t)
{
btime now_ = current_time();
return (t->expires > now_) ? (t->expires - now_) : 0;
}
static inline timer2 *
tm2_new_init(pool *p, void (*hook)(struct timer2 *), void *data, uint rec, uint rand)
{
timer2 *t = tm2_new(p);
t->hook = hook;
t->data = data;
t->recurrent = rec;
t->randomize = rand;
return t;
}
static inline void
tm2_set_max(timer2 *t, btime when)
{
if (when > t->expires)
tm2_set(t, when);
}
static inline void
tm2_start_max(timer2 *t, btime after)
{
btime rem = tm2_remains(t);
tm2_start(t, MAX_(rem, after));
}
/* In sysdep code */
void times_init(struct timeloop *loop);
void times_update(struct timeloop *loop);
void times_update_real_time(struct timeloop *loop);
/* For I/O loop */
void timers_init(struct timeloop *loop, pool *p);
void timers_fire(struct timeloop *loop);
void timer_init(void);
#endif
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