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https://gitlab.nic.cz/labs/bird.git
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d648c6b602
Add new global counter for stats channel New symbol is added for each stats protocol channel, the symbol is accessed by same name as the underlying channel. Symbols evaluate to the sum of all routes exported from connected table with generation less than max generation of particular channel. Default max generation is 16. Beware you shouldn't make cyclic references as the behavior of such configuration is not defined!
156 lines
4.0 KiB
C
156 lines
4.0 KiB
C
/*
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* BIRD -- Timers
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*
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* (c) 2013--2017 Ondrej Zajicek <santiago@crfreenet.org>
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* (c) 2013--2017 CZ.NIC z.s.p.o.
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#ifndef _BIRD_TIMER_H_
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#define _BIRD_TIMER_H_
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#include "nest/bird.h"
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#include "lib/buffer.h"
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#include "lib/io-loop.h"
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#include "lib/locking.h"
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#include "lib/resource.h"
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#include <stdatomic.h>
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extern _Atomic btime last_time;
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extern _Atomic btime real_time;
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typedef struct timer
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{
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resource r;
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void (*hook)(struct timer *);
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void *data;
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btime expires; /* 0=inactive */
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uint randomize; /* Amount of randomization */
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uint recurrent; /* Timer recurrence */
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struct timeloop *loop; /* Loop where the timer is active */
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int index;
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} timer;
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struct timeloop
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{
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BUFFER_(timer *) timers;
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struct domain_generic *domain;
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struct birdloop *loop;
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};
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#define TLOCK_TIMER_ASSERT(loop) ASSERT_DIE((loop)->domain && DG_IS_LOCKED((loop)->domain))
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#define TLOCK_LOCAL_ASSERT(loop) ASSERT_DIE(!(loop)->domain || DG_IS_LOCKED((loop)->domain))
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static inline uint timers_count(struct timeloop *loop)
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{ TLOCK_TIMER_ASSERT(loop); return loop->timers.used - 1; }
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static inline timer *timers_first(struct timeloop *loop)
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{ TLOCK_TIMER_ASSERT(loop); return (loop->timers.used > 1) ? loop->timers.data[1] : NULL; }
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#define current_time() atomic_load_explicit(&last_time, memory_order_acquire)
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#define current_real_time() atomic_load_explicit(&real_time, memory_order_acquire)
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//#define now (current_time() TO_S)
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//#define now_real (current_real_time() TO_S)
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extern btime boot_time;
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timer *tm_new(pool *p);
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#define tm_set(t, when) tm_set_in((t), (when), &main_birdloop)
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#define tm_start(t, after) tm_start_in((t), (after), &main_birdloop)
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void tm_stop(timer *t);
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void tm_set_in(timer *t, btime when, struct birdloop *loop);
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#define tm_start_in(t, after, loop) tm_set_in((t), (current_time() + MAX_((after), 0)), loop)
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static inline int
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tm_active(timer *t)
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{
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return t->expires != 0;
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}
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static inline btime
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tm_remains(timer *t)
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{
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btime now_ = current_time();
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return (t->expires > now_) ? (t->expires - now_) : 0;
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}
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static inline timer *
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tm_new_init(pool *p, void (*hook)(struct timer *), void *data, uint rec, uint rand)
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{
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timer *t = tm_new(p);
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t->hook = hook;
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t->data = data;
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t->recurrent = rec;
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t->randomize = rand;
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return t;
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}
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static inline void
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tm_set_max(timer *t, btime when)
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{
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if (when > t->expires)
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tm_set(t, when);
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}
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static inline void
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tm_start_max_in(timer *t, btime after, struct birdloop *loop)
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{
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btime rem = tm_remains(t);
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tm_start_in(t, MAX_(rem, after), loop);
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}
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#define tm_start_max(t, after) tm_start_max_in(t, after, &main_birdloop)
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/* In sysdep code */
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void times_update(void);
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/* For I/O loop */
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void timers_init(struct timeloop *loop, pool *p);
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void timers_fire(struct timeloop *loop, int io_log);
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struct timeformat {
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const char *fmt1, *fmt2;
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btime limit;
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};
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#define TM_ISO_SHORT_S (struct timeformat){"%T", "%F", (s64) (20*3600) S_}
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#define TM_ISO_SHORT_MS (struct timeformat){"%T.%3f", "%F", (s64) (20*3600) S_}
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#define TM_ISO_SHORT_US (struct timeformat){"%T.%6f", "%F", (s64) (20*3600) S_}
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#define TM_ISO_LONG_S (struct timeformat){"%F %T", NULL, 0}
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#define TM_ISO_LONG_MS (struct timeformat){"%F %T.%3f", NULL, 0}
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#define TM_ISO_LONG_US (struct timeformat){"%F %T.%6f", NULL, 0}
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#define TM_DATETIME_BUFFER_SIZE 32 /* Buffer size required by tm_format_time() */
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btime tm_parse_time(const char *x);
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void tm_format_time(char *x, struct timeformat *fmt, btime t);
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int tm_format_real_time(char *x, size_t max, const char *fmt, btime t);
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/*
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* Settle timer
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*/
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struct settle_timer {
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btime min_settle_time;
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btime max_settle_time;
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btime base_settle_time;
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btime last_change;
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timer *t;
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void (*settle_hook)(struct settle_timer *t);
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void *settle_data;
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};
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void stm_init(struct settle_timer *st, pool *p, void *data, void (*settle_hook)(struct settle_timer *st));
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void kick_settle_timer(struct settle_timer *st);
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void settle_timer_changed(struct settle_timer *st);
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#endif
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