/* (C) 2021 by sysmocom - s.f.m.c. GmbH * All Rights Reserved * * Author: Neels Janosch Hofmeyr * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . * */ #include #include #include #include #include #include #include #include enum my_ctrs { CTR_CEIL, CTR_ROUND, CTR_FLOOR, }; const struct rate_ctr_desc my_ctr_desc[] = { [CTR_CEIL] = {"ceil", "testing round_threshold_usec = 1"}, [CTR_ROUND] = {"round", "testing round_threshold_usec = 0 = gran_usec/2"}, [CTR_FLOOR] = {"floor", "testing round_threshold_usec = gran_usec"}, }; const struct rate_ctr_group_desc my_ctrg_desc = { "time_cc_test", "Counters for osmo_time_cc test", 0, ARRAY_SIZE(my_ctr_desc), my_ctr_desc, }; struct rate_ctr_group *my_ctrg; enum my_obj_timers { T_GRAN = -23, T_ROUND_THRESH = -24, T_FORGET_SUM = -25, }; struct osmo_tdef g_my_obj_tdefs[] = { { .T = T_GRAN, .default_val = 0, .unit = OSMO_TDEF_MS, .desc = "flag_cc granularity, or zero for 1 second" }, { .T = T_ROUND_THRESH, .default_val = 0, .unit = OSMO_TDEF_MS, .desc = "flag_cc rounding threshold, or zero for half a granularity" }, { .T = T_FORGET_SUM, .default_val = 0, .unit = OSMO_TDEF_MS, .desc = "flag_cc inactivity forget period, or zero to not forget any timings" }, {} }; struct my_obj { struct osmo_time_cc flag_cc_ceil; struct osmo_time_cc flag_cc_round; struct osmo_time_cc flag_cc_floor; }; void my_obj_init(struct my_obj *my_obj) { osmo_time_cc_init(&my_obj->flag_cc_ceil); my_obj->flag_cc_ceil.cfg = (struct osmo_time_cc_cfg){ .rate_ctr = rate_ctr_group_get_ctr(my_ctrg, CTR_CEIL), .round_threshold_usec = 1, .T_gran = T_GRAN, .T_forget_sum = T_FORGET_SUM, .T_defs = g_my_obj_tdefs, }; osmo_time_cc_init(&my_obj->flag_cc_round); my_obj->flag_cc_round.cfg = (struct osmo_time_cc_cfg){ .rate_ctr = rate_ctr_group_get_ctr(my_ctrg, CTR_ROUND), .T_gran = T_GRAN, .T_round_threshold = T_ROUND_THRESH, .T_forget_sum = T_FORGET_SUM, .T_defs = g_my_obj_tdefs, }; osmo_time_cc_init(&my_obj->flag_cc_floor); my_obj->flag_cc_floor.cfg = (struct osmo_time_cc_cfg){ .rate_ctr = rate_ctr_group_get_ctr(my_ctrg, CTR_FLOOR), .round_threshold_usec = UINT64_MAX, /* always >= gran_usec */ .T_gran = T_GRAN, .T_forget_sum = T_FORGET_SUM, .T_defs = g_my_obj_tdefs, }; } void my_obj_event(struct my_obj *my_obj, bool flag) { osmo_time_cc_set_flag(&my_obj->flag_cc_ceil, flag); osmo_time_cc_set_flag(&my_obj->flag_cc_round, flag); osmo_time_cc_set_flag(&my_obj->flag_cc_floor, flag); } void my_obj_destruct(struct my_obj *my_obj) { osmo_time_cc_cleanup(&my_obj->flag_cc_ceil); osmo_time_cc_cleanup(&my_obj->flag_cc_round); osmo_time_cc_cleanup(&my_obj->flag_cc_floor); } static const struct log_info_cat log_categories[] = { }; static const struct log_info log_info = { .cat = log_categories, .num_cat = ARRAY_SIZE(log_categories), }; int main(int argc, char **argv) { void *ctx = talloc_named_const(NULL, 0, "time_cc_test"); struct timespec *now; struct my_obj my_obj = {0}; osmo_init_logging2(ctx, &log_info); /* enable override for CLOCK_MONOTONIC */ osmo_clock_override_enable(CLOCK_MONOTONIC, true); now = osmo_clock_override_gettimespec(CLOCK_MONOTONIC); now->tv_sec = 23000; now->tv_nsec = 0; /* enable override for osmo_gettimeofday(), for osmo_timer_schedule() */ osmo_gettimeofday_override = true; osmo_gettimeofday_override_time = (struct timeval){23000, 0}; my_ctrg = rate_ctr_group_alloc(ctx, &my_ctrg_desc, 0); #define CHECK_RATE_CTRS(exp_ceil, exp_round, exp_floor) do { \ printf("%d CHECK_RATE_CTRS(" #exp_ceil ", " #exp_round ", " #exp_floor ")", \ my_obj.flag_cc_round.flag_state); \ while (osmo_select_main_ctx(1) > 0); \ if (exp_ceil != my_obj.flag_cc_ceil.cfg.rate_ctr->current \ || exp_round != my_obj.flag_cc_round.cfg.rate_ctr->current \ || exp_floor != my_obj.flag_cc_floor.cfg.rate_ctr->current) \ printf("\n ERROR on line %d: ctr_ceil=%"PRIu64" ctr_round=%"PRIu64" ctr_floor=%"PRIu64"\n", \ __LINE__, \ my_obj.flag_cc_ceil.cfg.rate_ctr->current, \ my_obj.flag_cc_round.cfg.rate_ctr->current, \ my_obj.flag_cc_floor.cfg.rate_ctr->current); \ else \ printf(" ok\n"); \ } while (0) #define ADD_MILLISECS_NO_SELECT(ms) do { \ osmo_clock_override_add(CLOCK_MONOTONIC, ms / 1000, (uint64_t)(ms % 1000) * 1000000); \ osmo_gettimeofday_override_add(ms / 1000, (uint64_t)(ms % 1000) * 1000); \ printf("%d ADD_MILLISECS(" #ms ") --> %ld.%03ld", my_obj.flag_cc_round.flag_state, \ (unsigned int long) now->tv_sec, now->tv_nsec/1000000); \ printf("\n"); \ } while (0) #define ADD_MILLISECS(ms) do { \ ADD_MILLISECS_NO_SELECT(ms); \ while (osmo_select_main_ctx(1) > 0); \ } while (0) #define FLAG(VAL) do { \ printf(" flag: %s -> %s\n", my_obj.flag_cc_round.flag_state ? "TRUE" : "FALSE", VAL ? "TRUE" : "FALSE"); \ my_obj_event(&my_obj, VAL); \ } while (0) /* * sum ^ * | ________ * | / * | / * | / * 3*gran --+--------------------------------------+ * | /: * | / : * | - - - - - - - - - - - - - - - - - / : * | /. : * | / . : * 2*gran --+--------------------------------+ . : * | /: . : * | / : . : * | - - - - - - - - - -_________/ : . : * | / . : . : * | / . : . : * 1*gran --+-----------------+ . : . : * | /: . : . : * | / : . : . : * | - - - - - - -/ : . : . : * | /. : . : . : * | ....-------' . : . : . : * 0 +----------------------------------------------------------> elapsed time * . : . : . : * _ _ _______ ____________ * flag: __| |_| |____| . : |_______|. : . : |__________ * f t f t f t . : f t. : . : f * round_threshold_usec : . : . : . : * = 1 usec: 0 1 . :2 . :3 . :4 = "ceil()" * = 0 == gran_usec/2: 0 1 : 2 : 3 : = "round()" * = gran_usec: 0 1 2 3 = "floor()" */ printf("\n----------- cumulating time, without forget_sum\n\n"); my_obj_init(&my_obj); CHECK_RATE_CTRS(0, 0, 0); ADD_MILLISECS(100); CHECK_RATE_CTRS(0, 0, 0); FLAG(true); /* flag has just turned true the first time */ CHECK_RATE_CTRS(0, 0, 0); ADD_MILLISECS(1); /* flag has been true for 0.001s */ CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(99); /* flag has been true for 0.1s */ CHECK_RATE_CTRS(1, 0, 0); FLAG(false); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(100); CHECK_RATE_CTRS(1, 0, 0); FLAG(true); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(100); /* flag has been true for 0.2s */ CHECK_RATE_CTRS(1, 0, 0); FLAG(false); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(300); CHECK_RATE_CTRS(1, 0, 0); FLAG(true); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(299); /* flag has been true for 0.499s */ CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(1); /* flag has been true for 0.5s */ CHECK_RATE_CTRS(1, 1, 0); ADD_MILLISECS(499); /* flag has been true for 0.999s */ CHECK_RATE_CTRS(1, 1, 0); ADD_MILLISECS(1); /* flag has been true for 1.0s */ CHECK_RATE_CTRS(1, 1, 1); ADD_MILLISECS(1); /* flag has been true for 1.001s */ CHECK_RATE_CTRS(2, 1, 1); ADD_MILLISECS(299); /* flag has been true for 1.3s */ CHECK_RATE_CTRS(2, 1, 1); FLAG(false); CHECK_RATE_CTRS(2, 1, 1); ADD_MILLISECS(400); CHECK_RATE_CTRS(2, 1, 1); FLAG(true); CHECK_RATE_CTRS(2, 1, 1); ADD_MILLISECS(199); /* flag has been true for 1.499s */ CHECK_RATE_CTRS(2, 1, 1); ADD_MILLISECS(2); /* flag has been true for 1.501s */ CHECK_RATE_CTRS(2, 2, 1); ADD_MILLISECS(498); /* flag has been true for 1.999s */ CHECK_RATE_CTRS(2, 2, 1); ADD_MILLISECS(2); /* flag has been true for 2.001s */ CHECK_RATE_CTRS(3, 2, 2); ADD_MILLISECS(500); /* flag has been true for 2.501s */ CHECK_RATE_CTRS(3, 3, 2); ADD_MILLISECS(498); /* flag has been true for 2.999s */ CHECK_RATE_CTRS(3, 3, 2); ADD_MILLISECS(3); /* flag has been true for 3.003s */ CHECK_RATE_CTRS(4, 3, 3); ADD_MILLISECS(200); /* flag has been true for 3.203s */ CHECK_RATE_CTRS(4, 3, 3); FLAG(false); CHECK_RATE_CTRS(4, 3, 3); ADD_MILLISECS(4321); CHECK_RATE_CTRS(4, 3, 3); FLAG(true); CHECK_RATE_CTRS(4, 3, 3); ADD_MILLISECS(5678); CHECK_RATE_CTRS(9, 9, 8); FLAG(false); CHECK_RATE_CTRS(9, 9, 8); my_obj_destruct(&my_obj); rate_ctr_group_reset(my_ctrg); printf("\n----------- test forget_sum_usec\n\n"); osmo_tdef_set(g_my_obj_tdefs, T_FORGET_SUM, 10, OSMO_TDEF_S); now->tv_sec = 23000; now->tv_nsec = 0; osmo_gettimeofday_override_time = (struct timeval){23000, 0}; my_obj_init(&my_obj); CHECK_RATE_CTRS(0, 0, 0); FLAG(true); /* flag has just turned true the first time */ CHECK_RATE_CTRS(0, 0, 0); ADD_MILLISECS(100); /* flag has been true for 0.1s */ CHECK_RATE_CTRS(1, 0, 0); FLAG(false); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(1000); /* 1 s of being false, forget_sum_usec has not yet occurred */ CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(8999); /* 9.999 s of being false, forget_sum_usec has not yet occurred */ CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(1); /* 10 s of being false, forget_sum_usec has occurred */ CHECK_RATE_CTRS(1, 0, 0); FLAG(true); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(1); /* Since previous sums were forgotton, ceil() triggers again */ CHECK_RATE_CTRS(2, 0, 0); /* If the sum had not been forgotten, adding 400 ms to the initial 100 ms would have triggered round(). Verify * that this does not occur, since now full 500 ms are required */ ADD_MILLISECS(399); CHECK_RATE_CTRS(2, 0, 0); /* Adding another 100 ms will trigger round() */ ADD_MILLISECS(99); CHECK_RATE_CTRS(2, 0, 0); ADD_MILLISECS(1); CHECK_RATE_CTRS(2, 1, 0); /* If the sum had not been forgotten, adding 900 ms to the initial 100 ms would have triggered floor(). Verify * that this does not occur, since now full 1000 ms are required. We already added 500 ms above. */ ADD_MILLISECS(400); CHECK_RATE_CTRS(2, 1, 0); /* Adding another 100 ms will trigger floor() */ ADD_MILLISECS(99); CHECK_RATE_CTRS(2, 1, 0); ADD_MILLISECS(1); CHECK_RATE_CTRS(2, 1, 1); /* Test that durations of false below forget_sum_usec never trigger a forget */ ADD_MILLISECS(300); CHECK_RATE_CTRS(3, 1, 1); /* internal counter is now at 0.3s above the last reported rate counter */ FLAG(false); ADD_MILLISECS(9999); FLAG(true); ADD_MILLISECS(25); FLAG(false); ADD_MILLISECS(9999); FLAG(true); ADD_MILLISECS(25); FLAG(false); ADD_MILLISECS(9999); FLAG(true); ADD_MILLISECS(25); FLAG(false); ADD_MILLISECS(9999); FLAG(true); ADD_MILLISECS(25); /* internal counter is now at 0.4s above the last reported rate counter */ CHECK_RATE_CTRS(3, 1, 1); ADD_MILLISECS(100); CHECK_RATE_CTRS(3, 2, 1); ADD_MILLISECS(500); CHECK_RATE_CTRS(3, 2, 2); /* Test that repeated osmo_time_cc_set_flag(false) does not cancel a forget_sum_usec */ ADD_MILLISECS(300); /* internal counter is now at 0.3s above the last reported rate counter */ CHECK_RATE_CTRS(4, 2, 2); FLAG(false); ADD_MILLISECS(5000); /* Repeat 'false', must not affect forget_sum_usec */ FLAG(false); ADD_MILLISECS(5000); CHECK_RATE_CTRS(4, 2, 2); /* 10 s have passed, forget_sum_usec has occurred. * Hence ceil() will trigger again right away: */ FLAG(true); ADD_MILLISECS(1); CHECK_RATE_CTRS(5, 2, 2); /* Adding 200 ms to the initial 300 ms would have triggered round(), but no more after forget_sum_usec */ ADD_MILLISECS(199); CHECK_RATE_CTRS(5, 2, 2); /* Adding another 300 ms will trigger round() */ ADD_MILLISECS(299); CHECK_RATE_CTRS(5, 2, 2); ADD_MILLISECS(1); CHECK_RATE_CTRS(5, 3, 2); /* Adding 700 ms to the initial 300 ms would have triggered ceil(), but no more after forget_sum_usec */ ADD_MILLISECS(200); CHECK_RATE_CTRS(5, 3, 2); /* Adding another 300 ms will trigger ceil() */ ADD_MILLISECS(299); CHECK_RATE_CTRS(5, 3, 2); ADD_MILLISECS(1); CHECK_RATE_CTRS(5, 3, 3); my_obj_destruct(&my_obj); rate_ctr_group_reset(my_ctrg); /* Verify correctness when select() lags and runs timer callbacks too late */ printf("\n----------- cumulating time, without forget_sum, when timer cb are invoked late\n\n"); osmo_tdef_set(g_my_obj_tdefs, T_FORGET_SUM, 0, OSMO_TDEF_S); now->tv_sec = 23000; now->tv_nsec = 0; osmo_gettimeofday_override_time = (struct timeval){23000, 0}; my_obj_init(&my_obj); CHECK_RATE_CTRS(0, 0, 0); ADD_MILLISECS_NO_SELECT(100); CHECK_RATE_CTRS(0, 0, 0); FLAG(true); /* flag has just turned true the first time */ CHECK_RATE_CTRS(0, 0, 0); ADD_MILLISECS_NO_SELECT(100); /* flag has been true for 0.1s */ CHECK_RATE_CTRS(1, 0, 0); FLAG(false); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS_NO_SELECT(100); CHECK_RATE_CTRS(1, 0, 0); FLAG(true); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS_NO_SELECT(100); /* flag has been true for 0.2s */ CHECK_RATE_CTRS(1, 0, 0); FLAG(false); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS_NO_SELECT(300); CHECK_RATE_CTRS(1, 0, 0); FLAG(true); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS_NO_SELECT(799); /* flag has been true for 0.999s */ CHECK_RATE_CTRS(1, 1, 0); ADD_MILLISECS_NO_SELECT(1); /* flag has been true for 1.0s */ CHECK_RATE_CTRS(1, 1, 1); ADD_MILLISECS_NO_SELECT(300); /* flag has been true for 1.3s */ CHECK_RATE_CTRS(2, 1, 1); FLAG(false); CHECK_RATE_CTRS(2, 1, 1); ADD_MILLISECS_NO_SELECT(400); CHECK_RATE_CTRS(2, 1, 1); FLAG(true); CHECK_RATE_CTRS(2, 1, 1); ADD_MILLISECS_NO_SELECT(699); /* flag has been true for 1.999s */ CHECK_RATE_CTRS(2, 2, 1); ADD_MILLISECS_NO_SELECT(1); /* flag has been true for 2.0s */ CHECK_RATE_CTRS(2, 2, 2); ADD_MILLISECS_NO_SELECT(1); /* flag has been true for 2.001s */ CHECK_RATE_CTRS(3, 2, 2); ADD_MILLISECS_NO_SELECT(499); /* flag has been true for 2.5s */ CHECK_RATE_CTRS(3, 3, 2); ADD_MILLISECS_NO_SELECT(499); /* flag has been true for 2.999s */ CHECK_RATE_CTRS(3, 3, 2); ADD_MILLISECS_NO_SELECT(1); /* flag has been true for 3.0s */ CHECK_RATE_CTRS(3, 3, 3); ADD_MILLISECS_NO_SELECT(200); /* flag has been true for 3.2s */ CHECK_RATE_CTRS(4, 3, 3); FLAG(false); CHECK_RATE_CTRS(4, 3, 3); ADD_MILLISECS_NO_SELECT(4321); CHECK_RATE_CTRS(4, 3, 3); FLAG(true); CHECK_RATE_CTRS(4, 3, 3); ADD_MILLISECS_NO_SELECT(5678); CHECK_RATE_CTRS(9, 9, 8); FLAG(false); CHECK_RATE_CTRS(9, 9, 8); my_obj_destruct(&my_obj); rate_ctr_group_reset(my_ctrg); printf("\n----------- test forget_sum, when timer cb are invoked late\n\n"); osmo_tdef_set(g_my_obj_tdefs, T_FORGET_SUM, 10, OSMO_TDEF_S); now->tv_sec = 23000; now->tv_nsec = 0; osmo_gettimeofday_override_time = (struct timeval){23000, 0}; my_obj_init(&my_obj); CHECK_RATE_CTRS(0, 0, 0); FLAG(true); /* flag has just turned true the first time */ CHECK_RATE_CTRS(0, 0, 0); ADD_MILLISECS_NO_SELECT(100); /* flag has been true for 0.1s */ CHECK_RATE_CTRS(1, 0, 0); FLAG(false); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS_NO_SELECT(1000); /* 1 s of being false, forget_sum_usec has not yet occurred */ CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS_NO_SELECT(8999); /* 9.999 s of being false, forget_sum_usec has not yet occurred */ CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS_NO_SELECT(1); /* 10 s of being false, forget_sum_usec has occurred */ CHECK_RATE_CTRS(1, 0, 0); FLAG(true); CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS_NO_SELECT(1); /* Since previous sums were forgotton, ceil() triggers again */ CHECK_RATE_CTRS(2, 0, 0); /* If the sum had not been forgotten, adding 400 ms to the initial 100 ms would have triggered round(). Verify * that this does not occur, since now full 500 ms are required */ ADD_MILLISECS_NO_SELECT(399); CHECK_RATE_CTRS(2, 0, 0); /* Adding another 100 ms will trigger round() */ ADD_MILLISECS_NO_SELECT(99); CHECK_RATE_CTRS(2, 0, 0); ADD_MILLISECS_NO_SELECT(1); CHECK_RATE_CTRS(2, 1, 0); /* If the sum had not been forgotten, adding 900 ms to the initial 100 ms would have triggered floor(). Verify * that this does not occur, since now full 1000 ms are required. We already added 500 ms above. */ ADD_MILLISECS_NO_SELECT(400); CHECK_RATE_CTRS(2, 1, 0); /* Adding another 100 ms will trigger floor() */ ADD_MILLISECS_NO_SELECT(99); CHECK_RATE_CTRS(2, 1, 0); ADD_MILLISECS_NO_SELECT(1); CHECK_RATE_CTRS(2, 1, 1); /* Test that durations of false below forget_sum_usec never trigger a forget */ ADD_MILLISECS_NO_SELECT(300); CHECK_RATE_CTRS(3, 1, 1); /* internal counter is now at 0.3s above the last reported rate counter */ FLAG(false); ADD_MILLISECS_NO_SELECT(9999); FLAG(true); ADD_MILLISECS_NO_SELECT(25); FLAG(false); ADD_MILLISECS_NO_SELECT(9999); FLAG(true); ADD_MILLISECS_NO_SELECT(25); FLAG(false); ADD_MILLISECS_NO_SELECT(9999); FLAG(true); ADD_MILLISECS_NO_SELECT(25); FLAG(false); ADD_MILLISECS_NO_SELECT(9999); FLAG(true); ADD_MILLISECS_NO_SELECT(25); /* internal counter is now at 0.4s above the last reported rate counter */ CHECK_RATE_CTRS(3, 1, 1); ADD_MILLISECS_NO_SELECT(100); CHECK_RATE_CTRS(3, 2, 1); ADD_MILLISECS_NO_SELECT(500); CHECK_RATE_CTRS(3, 2, 2); my_obj_destruct(&my_obj); rate_ctr_group_reset(my_ctrg); #define SET_TDEFS(gran, round_thresh, forget_sum) do { \ osmo_tdef_set(g_my_obj_tdefs, T_GRAN, gran, OSMO_TDEF_MS); \ osmo_tdef_set(g_my_obj_tdefs, T_ROUND_THRESH, round_thresh, OSMO_TDEF_MS); \ osmo_tdef_set(g_my_obj_tdefs, T_FORGET_SUM, forget_sum, OSMO_TDEF_S); \ printf("T_defs: T_gran=%luusec T_round_threshold=%luusec T_forget_sum=%luusec\n", \ osmo_tdef_get(g_my_obj_tdefs, T_GRAN, OSMO_TDEF_US, -1), \ osmo_tdef_get(g_my_obj_tdefs, T_ROUND_THRESH, OSMO_TDEF_US, -1), \ osmo_tdef_get(g_my_obj_tdefs, T_FORGET_SUM, OSMO_TDEF_US, -1)); \ } while (0) printf("\n----------- test T_defs\n\n"); now->tv_sec = 23000; now->tv_nsec = 0; osmo_gettimeofday_override_time = (struct timeval){23000, 0}; SET_TDEFS(100, 10, 0); my_obj_init(&my_obj); CHECK_RATE_CTRS(0, 0, 0); ADD_MILLISECS(100); CHECK_RATE_CTRS(0, 0, 0); FLAG(true); /* flag has just turned true the first time */ CHECK_RATE_CTRS(0, 0, 0); ADD_MILLISECS(9); /* flag has been true for 0.009s */ CHECK_RATE_CTRS(1, 0, 0); ADD_MILLISECS(1); /* flag has been true for 0.010s */ CHECK_RATE_CTRS(1, 1, 0); ADD_MILLISECS(90); /* flag has been true for 0.1s */ CHECK_RATE_CTRS(1, 1, 1); SET_TDEFS(200, 190, 1); /* gran is changed to 200ms, but still continues until the next scheduled event until the change is picked up. * For ceil(), it is 1 ms ahead. * For round(), it is 10 ms ahead. * For floor(), it is at the next full (previous) gran 100 ms ahead. * When T_defs change, all internal sums are reset to zero without reporting. */ CHECK_RATE_CTRS(1, 1, 1); ADD_MILLISECS(1); /* 1ms elapsed: ceil() picks up the T_gran change, starts anew. */ /* elapsed: ceil 0 ms */ CHECK_RATE_CTRS(1, 1, 1); ADD_MILLISECS(1); /* elapsed: ceil 1 ms */ /* ceil() increments because flag has been true for more than 1 us after reset */ CHECK_RATE_CTRS(2, 1, 1); ADD_MILLISECS(8); /* 10 ms elapsed: round() picks up the T_gran change, starts anew */ /* elapsed: ceil 9 ms, round 0 ms */ CHECK_RATE_CTRS(2, 1, 1); ADD_MILLISECS(90); /* 100 ms elapsed: floor() picks up the T_gran change, starts anew */ /* elapsed: ceil 99 ms, round 90 ms, floor 0 ms */ CHECK_RATE_CTRS(2, 1, 1); ADD_MILLISECS(99); /* elapsed: ceil 198 ms, round 189 ms, floor 99 ms */ CHECK_RATE_CTRS(2, 1, 1); ADD_MILLISECS(1); /* elapsed: ceil 199 ms, round 190 ms, floor 100 ms */ CHECK_RATE_CTRS(2, 2, 1); ADD_MILLISECS(1); /* elapsed: ceil 200 ms, round 191 ms, floor 101 ms */ CHECK_RATE_CTRS(2, 2, 1); ADD_MILLISECS(1); /* elapsed: ceil 201 ms, round 192 ms, floor 102 ms */ CHECK_RATE_CTRS(3, 2, 1); ADD_MILLISECS(98); /* elapsed: ceil 299 ms, round 290 ms, floor 200 ms */ CHECK_RATE_CTRS(3, 2, 2); ADD_MILLISECS(99); /* elapsed: ceil 398 ms, round 389 ms, floor 299 ms */ CHECK_RATE_CTRS(3, 2, 2); ADD_MILLISECS(1); /* elapsed: ceil 399 ms, round 390 ms, floor 300 ms */ CHECK_RATE_CTRS(3, 3, 2); ADD_MILLISECS(1); /* elapsed: ceil 400 ms, round 391 ms, floor 301 ms */ CHECK_RATE_CTRS(3, 3, 2); ADD_MILLISECS(1); /* elapsed: ceil 401 ms, round 392 ms, floor 302 ms */ CHECK_RATE_CTRS(4, 3, 2); ADD_MILLISECS(98); /* elapsed: ceil 499 ms, round 490 ms, floor 400 ms */ CHECK_RATE_CTRS(4, 3, 3); SET_TDEFS(100, 0, 0); /* T_defs change, but they only get picked up upon the next event: * For ceil(), it is 102 ms ahead. * For round(), it is 100 ms ahead (thresh is still 190, currently at 90). * For floor(), it is 200 ms ahead. * When T_defs change, all internal sums are reset to zero without reporting. */ CHECK_RATE_CTRS(4, 3, 3); ADD_MILLISECS(100); CHECK_RATE_CTRS(4, 3, 3); /* round() picks up the new T_defs. Internal sum resets, nothing else happens yet. * round() schedules the next event 50 ms ahead. */ ADD_MILLISECS(2); CHECK_RATE_CTRS(4, 3, 3); /* ceil() picks up the change, its next event is 1 ms ahead. */ ADD_MILLISECS(1); /* ceil: 0.001 * round: 0.003 * floor: still 97 ms until it picks up the change */ CHECK_RATE_CTRS(5, 3, 3); ADD_MILLISECS(46); CHECK_RATE_CTRS(5, 3, 3); ADD_MILLISECS(1); /* round() has first counter trigger after T_defs change. */ CHECK_RATE_CTRS(5, 4, 3); /* ceil: 0.048 * round: 0.050 * floor: still 50 ms until it picks up the change */ ADD_MILLISECS(50); /* floor() picks up the change. nothing happens yet. */ /* ceil: 0.098 * round: 0.100 * floor: 0.0 */ ADD_MILLISECS(2); /* ceil: 0.100 * round: 0.102 * floor: 0.002 */ CHECK_RATE_CTRS(5, 4, 3); ADD_MILLISECS(1); /* ceil: 0.101 * round: 0.103 * floor: 0.003 */ CHECK_RATE_CTRS(6, 4, 3); ADD_MILLISECS(46); /* ceil: 0.147 * round: 0.149 * floor: 0.049 */ CHECK_RATE_CTRS(6, 4, 3); ADD_MILLISECS(1); /* ceil: 0.148 * round: 0.150 * floor: 0.050 */ CHECK_RATE_CTRS(6, 5, 3); my_obj_destruct(&my_obj); rate_ctr_group_reset(my_ctrg); return 0; }