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newlib: Fix UT - test time adjustment happens linearly

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Obtaining accurate and adjustable time occurs closer to each other.
This commit is contained in:
KonstantinKondrashov 2019-08-07 18:51:35 +08:00
parent e8e5410cef
commit fefc65f885
1 changed files with 44 additions and 37 deletions
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81
components/newlib/test/test_time.c
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@ -224,16 +224,26 @@ static void get_time_task(void *pvParameters)
static void start_measure(int64_t* sys_time, int64_t* real_time)
{
struct timeval tv_time;
*real_time = esp_timer_get_time();
gettimeofday(&tv_time, NULL);
int64_t t1, t2;
do {
t1 = esp_timer_get_time();
gettimeofday(&tv_time, NULL);
t2 = esp_timer_get_time();
} while (t2 - t1 > 40);
*real_time = t2;
*sys_time = (int64_t)tv_time.tv_sec * 1000000L + tv_time.tv_usec;
}
static void end_measure(int64_t* sys_time, int64_t* real_time)
{
struct timeval tv_time;
gettimeofday(&tv_time, NULL);
*real_time = esp_timer_get_time();
int64_t t1, t2;
do {
t1 = esp_timer_get_time();
gettimeofday(&tv_time, NULL);
t2 = esp_timer_get_time();
} while (t2 - t1 > 40);
*real_time = t2;
*sys_time = (int64_t)tv_time.tv_sec * 1000000L + tv_time.tv_usec;
}
@ -254,51 +264,55 @@ static int64_t calc_correction(const char* tag, int64_t* sys_time, int64_t* real
static void measure_time_task(void *pvParameters)
{
struct timeval tv_time;
int64_t real_time_us[2];
int64_t sys_time_us[2];
int64_t delay_us = 2 * 1000000; // 2 sec
xSemaphoreHandle *sema = (xSemaphoreHandle *) pvParameters;
int64_t main_real_time_us[2];
int64_t main_sys_time_us[2];
struct timeval tv_time = {.tv_sec = 1550000000, .tv_usec = 0};
TEST_ASSERT_EQUAL(0, settimeofday(&tv_time, NULL));
struct timeval delta = {.tv_sec = 2000, .tv_usec = 900000};
adjtime(&delta, NULL);
gettimeofday(&tv_time, NULL);
start_measure(&sys_time_us[0], &real_time_us[0]);
// although exit flag is set in another task, checking (exit_flag == false) is safe
while (exit_flag == false) {
ets_delay_us(delay_us);
start_measure(&main_sys_time_us[0], &main_real_time_us[0]);
end_measure(&sys_time_us[1], &real_time_us[1]);
result_adjtime_correction_us[1] += calc_correction("measure", sys_time_us, real_time_us);
{
int64_t real_time_us[2];
int64_t sys_time_us[2];
int64_t delay_us = 2 * 1000000; // 2 sec
start_measure(&sys_time_us[0], &real_time_us[0]);
// although exit flag is set in another task, checking (exit_flag == false) is safe
while (exit_flag == false) {
ets_delay_us(delay_us);
sys_time_us[0] = sys_time_us[1];
real_time_us[0] = real_time_us[1];
end_measure(&sys_time_us[1], &real_time_us[1]);
result_adjtime_correction_us[1] += calc_correction("measure", sys_time_us, real_time_us);
sys_time_us[0] = sys_time_us[1];
real_time_us[0] = real_time_us[1];
}
}
end_measure(&main_sys_time_us[1], &main_real_time_us[1]);
result_adjtime_correction_us[0] = calc_correction("main", main_sys_time_us, main_real_time_us);
int64_t delta_us = result_adjtime_correction_us[0] - result_adjtime_correction_us[1];
printf("\nresult of adjtime correction: %lli us, %lli us. delta = %lli us\n", result_adjtime_correction_us[0], result_adjtime_correction_us[1], delta_us);
TEST_ASSERT_INT_WITHIN(100, 0, delta_us);
xSemaphoreGive(*sema);
vTaskDelete(NULL);
}
TEST_CASE("test time adjustment happens linearly", "[newlib][timeout=35]")
{
int64_t real_time_us[2];
int64_t sys_time_us[2];
exit_flag = false;
struct timeval tv_time = {.tv_sec = 1550000000, .tv_usec = 0};
TEST_ASSERT_EQUAL(0, settimeofday(&tv_time, NULL));
struct timeval delta = {.tv_sec = 2000, .tv_usec = 900000};
adjtime(&delta, NULL);
gettimeofday(&tv_time, NULL);
xSemaphoreHandle exit_sema[2];
for (int i = 0; i < 2; ++i) {
exit_sema[i] = xSemaphoreCreateBinary();
result_adjtime_correction_us[i] = 0;
}
start_measure(&sys_time_us[0], &real_time_us[0]);
xTaskCreatePinnedToCore(get_time_task, "get_time_task", 2048, &exit_sema[0], UNITY_FREERTOS_PRIORITY - 1, NULL, 0);
xTaskCreatePinnedToCore(measure_time_task, "measure_time_task", 2048, &exit_sema[1], UNITY_FREERTOS_PRIORITY - 1, NULL, 1);
xTaskCreatePinnedToCore(get_time_task, "get_time_task", 4096, &exit_sema[0], UNITY_FREERTOS_PRIORITY - 1, NULL, 0);
xTaskCreatePinnedToCore(measure_time_task, "measure_time_task", 4096, &exit_sema[1], UNITY_FREERTOS_PRIORITY - 1, NULL, 1);
printf("start waiting for 30 seconds\n");
vTaskDelay(30000 / portTICK_PERIOD_MS);
@ -312,13 +326,6 @@ TEST_CASE("test time adjustment happens linearly", "[newlib][timeout=35]")
}
}
end_measure(&sys_time_us[1], &real_time_us[1]);
result_adjtime_correction_us[0] = calc_correction("main", sys_time_us, real_time_us);
int64_t delta_us = result_adjtime_correction_us[0] - result_adjtime_correction_us[1];
printf("\nresult of adjtime correction: %lli us, %lli us. delta = %lli us\n", result_adjtime_correction_us[0], result_adjtime_correction_us[1], delta_us);
TEST_ASSERT_INT_WITHIN(100, 0, delta_us);
for (int i = 0; i < 2; ++i) {
vSemaphoreDelete(exit_sema[i]);
}