handover_test: add fake-time 'wait'
Add a 'wait' cmd that lets (fake) time pass. An ucoming patch will show the first use of this: "test_penalty_timer.ho_vty: show lchan recovery" I8f7668b6d08a0dac9e90d2358955f9d5099d39fa My actual original reason to add this follows in patches - "handover tests: test passing of penalty timeout" I65e59cc7309778cf9d71612669ce84d101c8135e - "hodec2: add low-rxqual-assignment penalty timer (2/2)" Id00a07313fe04eec509b336c0637b59c707760e0 Related: SYS#5198 Change-Id: Ia6b5696adef7e7bf649473b4d79b96acf3aa59e3
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@ -94,6 +94,41 @@ struct neighbor_meas {
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uint8_t bcch_f;
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};
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const struct timeval fake_time_start_time = { 123, 456 };
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void fake_time_passes(time_t secs, suseconds_t usecs)
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{
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struct timeval diff;
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/* Add time to osmo_fsm timers, using osmo_gettimeofday() */
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osmo_gettimeofday_override_add(secs, usecs);
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/* Add time to penalty timers, using osmo_clock_gettime() */
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osmo_clock_override_add(CLOCK_MONOTONIC, secs, usecs * 1000);
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timersub(&osmo_gettimeofday_override_time, &fake_time_start_time, &diff);
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fprintf(stderr, "Total time passed: %d.%06d s\n", (int)diff.tv_sec, (int)diff.tv_usec);
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osmo_timers_prepare();
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osmo_timers_update();
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}
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void fake_time_start()
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{
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struct timespec *clock_override;
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/* osmo_fsm uses osmo_gettimeofday(). To affect FSM timeouts, we need osmo_gettimeofday_override. */
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osmo_gettimeofday_override_time = fake_time_start_time;
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osmo_gettimeofday_override = true;
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/* Penalty timers use osmo_clock_gettime(CLOCK_MONOTONIC). To affect these timeouts, we need
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* osmo_gettimeofday_override. */
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clock_override = osmo_clock_override_gettimespec(CLOCK_MONOTONIC);
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OSMO_ASSERT(clock_override);
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clock_override->tv_sec = fake_time_start_time.tv_sec;
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clock_override->tv_nsec = fake_time_start_time.tv_usec * 1000;
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osmo_clock_override_enable(CLOCK_MONOTONIC, true);
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fake_time_passes(0, 0);
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}
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static void gen_meas_rep(struct gsm_lchan *lchan,
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uint8_t bs_power_db, uint8_t rxlev, uint8_t rxqual, uint8_t ta,
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int neighbors_count, struct neighbor_meas *neighbors)
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@ -1410,6 +1445,22 @@ DEFUN(set_ts_use, set_ts_use_cmd,
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return CMD_SUCCESS;
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}
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DEFUN(wait, wait_cmd,
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"wait <0-999999> [<0-999>]",
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"Let some fake time pass. The test continues instantaneously, but this overrides osmo_gettimeofday() to let"
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" given amount of time pass virtually.\n"
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"Seconds to fake-wait\n"
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"Microseconds to fake-wait, in addition to the seconds waited\n")
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{
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time_t seconds = atoi(argv[0]);
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suseconds_t useconds = 0;
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VTY_ECHO();
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if (argc > 1)
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useconds = atoi(argv[1]) * 1000;
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fake_time_passes(seconds, useconds);
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return CMD_SUCCESS;
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}
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static void ho_test_vty_init()
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{
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install_element(CONFIG_NODE, &create_n_bts_cmd);
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@ -1433,6 +1484,7 @@ static void ho_test_vty_init()
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install_element(CONFIG_NODE, &codec_f_cmd);
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install_element(CONFIG_NODE, &codec_h_cmd);
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install_element(CONFIG_NODE, &set_ts_use_cmd);
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install_element(CONFIG_NODE, &wait_cmd);
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}
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static const struct log_info_cat log_categories[] = {
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@ -1554,6 +1606,10 @@ int main(int argc, char **argv)
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log_set_print_timestamp(osmo_stderr_target, 0);
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osmo_fsm_log_addr(false);
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/* the 'wait' command above, intended to test penalty timers, adds seconds to the monotonic clock in "fake
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* time". */
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fake_time_start();
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bsc_network_alloc();
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if (!bsc_gsmnet)
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exit(1);
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