148 	struct timeval g;  in ev_token_bucket_cfg_new()  local
150 		g.tv_sec = 1;  in ev_token_bucket_cfg_new()
151 		g.tv_usec = 0;  in ev_token_bucket_cfg_new()
152 		tick_len = &g;  in ev_token_bucket_cfg_new()
185 #define LOCK_GROUP(g) EVLOCK_LOCK((g)->lock, 0)  argument
186 #define UNLOCK_GROUP(g) EVLOCK_UNLOCK((g)->lock, 0)  argument
188 static int bev_group_suspend_reading_(struct bufferevent_rate_limit_group *g);
189 static int bev_group_suspend_writing_(struct bufferevent_rate_limit_group *g);
190 static void bev_group_unsuspend_reading_(struct bufferevent_rate_limit_group *g);
191 static void bev_group_unsuspend_writing_(struct bufferevent_rate_limit_group *g);
206 #define GROUP_SUSPENDED(g)			\  in bufferevent_get_rlim_max_()  argument
207 	(is_write ? (g)->write_suspended : (g)->read_suspended)  in bufferevent_get_rlim_max_()
229 		struct bufferevent_rate_limit_group *g =  in bufferevent_get_rlim_max_()  local
232 		LOCK_GROUP(g);  in bufferevent_get_rlim_max_()
233 		if (GROUP_SUSPENDED(g)) {  in bufferevent_get_rlim_max_()
247 			share = LIM(g->rate_limit) / g->n_members;  in bufferevent_get_rlim_max_()
248 			if (share < g->min_share)  in bufferevent_get_rlim_max_()
249 				share = g->min_share;  in bufferevent_get_rlim_max_()
251 		UNLOCK_GROUP(g);  in bufferevent_get_rlim_max_()
350 bev_group_suspend_reading_(struct bufferevent_rate_limit_group *g)  in bev_group_suspend_reading_()  argument
354 	g->read_suspended = 1;  in bev_group_suspend_reading_()
355 	g->pending_unsuspend_read = 0;  in bev_group_suspend_reading_()
363 	LIST_FOREACH(bev, &g->members, rate_limiting->next_in_group) {  in bev_group_suspend_reading_()
375 bev_group_suspend_writing_(struct bufferevent_rate_limit_group *g)  in bev_group_suspend_writing_()  argument
379 	g->write_suspended = 1;  in bev_group_suspend_writing_()
380 	g->pending_unsuspend_write = 0;  in bev_group_suspend_writing_()
381 	LIST_FOREACH(bev, &g->members, rate_limiting->next_in_group) {  in bev_group_suspend_writing_()
476 		first = bev_group_random_element_(g);	\
477 		for (bev = first; bev != LIST_END(&g->members); \
481 		for (bev = LIST_FIRST(&g->members); bev && bev != first; \
488 bev_group_unsuspend_reading_(struct bufferevent_rate_limit_group *g)  in bev_group_unsuspend_reading_()  argument
493 	g->read_suspended = 0;  in bev_group_unsuspend_reading_()
503 	g->pending_unsuspend_read = again;  in bev_group_unsuspend_reading_()
507 bev_group_unsuspend_writing_(struct bufferevent_rate_limit_group *g)  in bev_group_unsuspend_writing_()  argument
511 	g->write_suspended = 0;  in bev_group_unsuspend_writing_()
522 	g->pending_unsuspend_write = again;  in bev_group_unsuspend_writing_()
531 	struct bufferevent_rate_limit_group *g = arg;  in bev_group_refill_callback_()  local
535 	event_base_gettimeofday_cached(event_get_base(&g->master_refill_event), &now);  in bev_group_refill_callback_()
537 	LOCK_GROUP(g);  in bev_group_refill_callback_()
539 	tick = ev_token_bucket_get_tick_(&now, &g->rate_limit_cfg);  in bev_group_refill_callback_()
540 	ev_token_bucket_update_(&g->rate_limit, &g->rate_limit_cfg, tick);  in bev_group_refill_callback_()
542 	if (g->pending_unsuspend_read ||  in bev_group_refill_callback_()
543 	    (g->read_suspended && (g->rate_limit.read_limit >= g->min_share))) {  in bev_group_refill_callback_()
544 		bev_group_unsuspend_reading_(g);  in bev_group_refill_callback_()
546 	if (g->pending_unsuspend_write ||  in bev_group_refill_callback_()
547 	    (g->write_suspended && (g->rate_limit.write_limit >= g->min_share))){  in bev_group_refill_callback_()
548 		bev_group_unsuspend_writing_(g);  in bev_group_refill_callback_()
556 	UNLOCK_GROUP(g);  in bev_group_refill_callback_()
641 	struct bufferevent_rate_limit_group *g;  in bufferevent_rate_limit_group_new()  local
648 	g = mm_calloc(1, sizeof(struct bufferevent_rate_limit_group));  in bufferevent_rate_limit_group_new()
649 	if (!g)  in bufferevent_rate_limit_group_new()
651 	memcpy(&g->rate_limit_cfg, cfg, sizeof(g->rate_limit_cfg));  in bufferevent_rate_limit_group_new()
652 	LIST_INIT(&g->members);  in bufferevent_rate_limit_group_new()
654 	ev_token_bucket_init_(&g->rate_limit, cfg, tick, 0);  in bufferevent_rate_limit_group_new()
656 	event_assign(&g->master_refill_event, base, -1, EV_PERSIST|EV_FINALIZE,  in bufferevent_rate_limit_group_new()
657 	    bev_group_refill_callback_, g);  in bufferevent_rate_limit_group_new()
659 	event_add(&g->master_refill_event, &cfg->tick_timeout);  in bufferevent_rate_limit_group_new()
661 	EVTHREAD_ALLOC_LOCK(g->lock, EVTHREAD_LOCKTYPE_RECURSIVE);  in bufferevent_rate_limit_group_new()
663 	bufferevent_rate_limit_group_set_min_share(g, 64);  in bufferevent_rate_limit_group_new()
665 	evutil_weakrand_seed_(&g->weakrand_seed,  in bufferevent_rate_limit_group_new()
666 	    (ev_uint32_t) ((now.tv_sec + now.tv_usec) + (ev_intptr_t)g));  in bufferevent_rate_limit_group_new()
668 	return g;  in bufferevent_rate_limit_group_new()
673 	struct bufferevent_rate_limit_group *g,  in bufferevent_rate_limit_group_set_cfg()  argument
677 	if (!g || !cfg)  in bufferevent_rate_limit_group_set_cfg()
680 	LOCK_GROUP(g);  in bufferevent_rate_limit_group_set_cfg()
682 		&g->rate_limit_cfg.tick_timeout, &cfg->tick_timeout, ==);  in bufferevent_rate_limit_group_set_cfg()
683 	memcpy(&g->rate_limit_cfg, cfg, sizeof(g->rate_limit_cfg));  in bufferevent_rate_limit_group_set_cfg()
685 	if (g->rate_limit.read_limit > (ev_ssize_t)cfg->read_maximum)  in bufferevent_rate_limit_group_set_cfg()
686 		g->rate_limit.read_limit = cfg->read_maximum;  in bufferevent_rate_limit_group_set_cfg()
687 	if (g->rate_limit.write_limit > (ev_ssize_t)cfg->write_maximum)  in bufferevent_rate_limit_group_set_cfg()
688 		g->rate_limit.write_limit = cfg->write_maximum;  in bufferevent_rate_limit_group_set_cfg()
692 		event_add(&g->master_refill_event, &cfg->tick_timeout);  in bufferevent_rate_limit_group_set_cfg()
696 	bufferevent_rate_limit_group_set_min_share(g, g->configured_min_share);  in bufferevent_rate_limit_group_set_cfg()
698 	UNLOCK_GROUP(g);  in bufferevent_rate_limit_group_set_cfg()
704 	struct bufferevent_rate_limit_group *g,  in bufferevent_rate_limit_group_set_min_share()  argument
710 	g->configured_min_share = share;  in bufferevent_rate_limit_group_set_min_share()
714 	if (share > g->rate_limit_cfg.read_rate)  in bufferevent_rate_limit_group_set_min_share()
715 		share = g->rate_limit_cfg.read_rate;  in bufferevent_rate_limit_group_set_min_share()
716 	if (share > g->rate_limit_cfg.write_rate)  in bufferevent_rate_limit_group_set_min_share()
717 		share = g->rate_limit_cfg.write_rate;  in bufferevent_rate_limit_group_set_min_share()
719 	g->min_share = share;  in bufferevent_rate_limit_group_set_min_share()
724 bufferevent_rate_limit_group_free(struct bufferevent_rate_limit_group *g)  in bufferevent_rate_limit_group_free()  argument
726 	LOCK_GROUP(g);  in bufferevent_rate_limit_group_free()
727 	EVUTIL_ASSERT(0 == g->n_members);  in bufferevent_rate_limit_group_free()
728 	event_del(&g->master_refill_event);  in bufferevent_rate_limit_group_free()
729 	UNLOCK_GROUP(g);  in bufferevent_rate_limit_group_free()
730 	EVTHREAD_FREE_LOCK(g->lock, EVTHREAD_LOCKTYPE_RECURSIVE);  in bufferevent_rate_limit_group_free()
731 	mm_free(g);  in bufferevent_rate_limit_group_free()
736     struct bufferevent_rate_limit_group *g)  in bufferevent_add_to_rate_limit_group()  argument
754 	if (bevp->rate_limiting->group == g) {  in bufferevent_add_to_rate_limit_group()
761 	LOCK_GROUP(g);  in bufferevent_add_to_rate_limit_group()
762 	bevp->rate_limiting->group = g;  in bufferevent_add_to_rate_limit_group()
763 	++g->n_members;  in bufferevent_add_to_rate_limit_group()
764 	LIST_INSERT_HEAD(&g->members, bevp, rate_limiting->next_in_group);  in bufferevent_add_to_rate_limit_group()
766 	rsuspend = g->read_suspended;  in bufferevent_add_to_rate_limit_group()
767 	wsuspend = g->write_suspended;  in bufferevent_add_to_rate_limit_group()
769 	UNLOCK_GROUP(g);  in bufferevent_add_to_rate_limit_group()
793 		struct bufferevent_rate_limit_group *g =  in bufferevent_remove_from_rate_limit_group_internal_()  local
795 		LOCK_GROUP(g);  in bufferevent_remove_from_rate_limit_group_internal_()
797 		--g->n_members;  in bufferevent_remove_from_rate_limit_group_internal_()
799 		UNLOCK_GROUP(g);  in bufferevent_remove_from_rate_limit_group_internal_()