X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftimer%2Ftimer.c;h=c30c6227ab9a7fc2b672e3319605d0d66ed3a35d;hp=59d1ff377cb6498e01ffbed8cad1ef4290466fdf;hb=19bfc149066268388e7227f024f5a86d4bd3550b;hpb=a40fc5a89e5336f405b84387d387c9f5a74e95fa diff --git a/ccan/timer/timer.c b/ccan/timer/timer.c index 59d1ff37..c30c6227 100644 --- a/ccan/timer/timer.c +++ b/ccan/timer/timer.c @@ -12,23 +12,23 @@ struct timer_level { struct list_head list[PER_LEVEL]; }; -static uint64_t time_to_grains(struct timespec ts) +static uint64_t time_to_grains(struct timeabs t) { - return ts.tv_sec * ((uint64_t)1000000000 / TIMER_GRANULARITY) - + (ts.tv_nsec / TIMER_GRANULARITY); + return t.ts.tv_sec * ((uint64_t)1000000000 / TIMER_GRANULARITY) + + (t.ts.tv_nsec / TIMER_GRANULARITY); } -static struct timespec grains_to_time(uint64_t grains) +static struct timeabs grains_to_time(uint64_t grains) { - struct timespec ts; + struct timeabs t; - ts.tv_sec = grains / (1000000000 / TIMER_GRANULARITY); - ts.tv_nsec = (grains % (1000000000 / TIMER_GRANULARITY)) + t.ts.tv_sec = grains / (1000000000 / TIMER_GRANULARITY); + t.ts.tv_nsec = (grains % (1000000000 / TIMER_GRANULARITY)) * TIMER_GRANULARITY; - return ts; + return t; } -void timers_init(struct timers *timers, struct timespec start) +void timers_init(struct timers *timers, struct timeabs start) { unsigned int i; @@ -63,7 +63,7 @@ static void timer_add_raw(struct timers *timers, struct timer *t) list_add_tail(l, &t->list); } -void timer_add(struct timers *timers, struct timer *t, struct timespec when) +void timer_add(struct timers *timers, struct timer *t, struct timeabs when) { t->time = time_to_grains(when); @@ -119,41 +119,6 @@ static void add_level(struct timers *timers, unsigned int level) timer_add_raw(timers, t); } -/* Take timers from level and distribute them down one. */ -static void cascade(struct timers *timers, unsigned int level) -{ - struct timer *i; - struct list_head from_far, *list; - - if (level == ARRAY_SIZE(timers->level) || !timers->level[level]) { - list_head_init(&from_far); - timers_far_get(timers, &from_far, - timers->base - + (1ULL << (level*TIMER_LEVEL_BITS))-1); - list = &from_far; - if (level != ARRAY_SIZE(timers->level)) - add_level(timers, level); - } else { - unsigned src; - - src = (timers->base >> (level * TIMER_LEVEL_BITS)) % PER_LEVEL; - if (src == 0) - cascade(timers, level + 1); - list = &timers->level[level]->list[src]; - } - - while ((i = list_pop(list, struct timer, list)) != NULL) { - unsigned dst; - - assert(i->time >= timers->base); - assert(i->time < (timers->base - + (1ULL << ((level+1)*TIMER_LEVEL_BITS)))); - - dst = (i->time >> ((level-1)*TIMER_LEVEL_BITS)) % PER_LEVEL; - list_add_tail(&timers->level[level-1]->list[dst], &i->list); - } -} - static const struct timer *find_first(const struct list_head *list, const struct timer *prev) { @@ -238,7 +203,7 @@ static bool update_first(struct timers *timers) return true; } -bool timer_earliest(struct timers *timers, struct timespec *first) +bool timer_earliest(struct timers *timers, struct timeabs *first) { if (!update_first(timers)) return false; @@ -296,7 +261,7 @@ static void timer_fast_forward(struct timers *timers, uint64_t time) /* Fills list of expired timers. */ void timers_expire(struct timers *timers, - struct timespec expire, + struct timeabs expire, struct list_head *list) { uint64_t now = time_to_grains(expire); @@ -341,7 +306,8 @@ static bool timer_list_check(const struct list_head *l, if (abortstr) { fprintf(stderr, "%s: timer %p %llu not %llu-%llu\n", - abortstr, t, t->time, min, max); + abortstr, t, (long long)t->time, + (long long)min, (long long)max); abort(); } return false; @@ -350,7 +316,8 @@ static bool timer_list_check(const struct list_head *l, if (abortstr) { fprintf(stderr, "%s: timer %p %llu < minimum %llu\n", - abortstr, t, t->time, first); + abortstr, t, (long long)t->time, + (long long)first); abort(); } return false; @@ -409,7 +376,7 @@ past_levels: return (struct timers *)timers; } -//#ifdef CCAN_TIMER_DEBUG +#ifdef CCAN_TIMER_DEBUG void timers_dump(const struct timers *timers, FILE *fp) { unsigned int l, i; @@ -455,7 +422,7 @@ void timers_dump(const struct timers *timers, FILE *fp) } fprintf(stderr, "Far: %llu (%llu-%llu)\n", num, min, max); } -//#endif +#endif void timers_cleanup(struct timers *timers) {