DigitalInfinity/ESP32-PaxCounter
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timesync.cpp: bugfix vTaskDelay

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This commit is contained in:
Verkehrsrot 2019-03-27 20:38:00 +01:00
parent d4a3af987d
commit 0640e4dfb1
1 changed files with 17 additions and 18 deletions
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35
src/timesync.cpp
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@ -63,8 +63,9 @@ void send_timesync_req() {
void process_timesync_req(void *taskparameter) {
uint8_t k = 0;
uint32_t seq_no = 0;
uint32_t seq_no = 0, time_to_set;
auto time_offset_ms = myClock_msecTick::zero();
uint16_t time_to_set_fraction_msec;
// wait until we are joined
while (!LMIC.devaddr) {
@ -109,6 +110,11 @@ void process_timesync_req(void *taskparameter) {
}
} // for
// begin of time critical section: lock I2C bus to ensure accurate timing
// don't move the mutex, will impact accuracy of time up to 1 sec!
if (!I2C_MUTEX_LOCK())
goto error; // failure
// average time offset from collected diffs
time_offset_ms /= TIME_SYNC_SAMPLES;
@ -119,8 +125,15 @@ void process_timesync_req(void *taskparameter) {
milliseconds(osticks2ms(os_getTime())) + milliseconds(TIME_SYNC_FIXUP);
// calculate absolute time in UTC epoch: convert to whole seconds, round to
// floor, and calculate fraction milliseconds
adjustTime(time_offset_ms.count() / 1000 + 1, time_offset_ms.count() % 1000);
// ceil, and calculate fraction milliseconds
time_to_set = (uint32_t)(time_offset_ms.count() / 1000) + 1;
// calculate fraction milliseconds
time_to_set_fraction_msec = (uint16_t)(time_offset_ms.count() % 1000);
adjustTime(time_to_set, time_to_set_fraction_msec);
// end of time critical section: release I2C bus
I2C_MUTEX_UNLOCK();
finish:
lora_time_sync_pending = false;
@ -204,17 +217,13 @@ int adjustTime(uint32_t t_sec, uint16_t t_msec) {
time_t time_to_set = (time_t)t_sec;
// begin of time critical section: lock I2C bus to ensure accurate timing
if (!I2C_MUTEX_LOCK())
goto error; // failure
ESP_LOGD(TAG, "[%0.3f] Calculated UTC epoch time: %d.%03d sec",
millis() / 1000.0, time_to_set, t_msec);
if (timeIsValid(time_to_set)) {
// wait until top of second with millisecond precision
vTaskDelay(pdMS_TO_TICKS(1000 - t_msec < 1000 ? t_msec : 1000));
vTaskDelay(pdMS_TO_TICKS(1000 - t_msec));
#ifdef HAS_RTC
time_to_set++; // advance time 1 sec wait time
@ -230,9 +239,6 @@ int adjustTime(uint32_t t_sec, uint16_t t_msec) {
setTime(time_to_set); // set the time on top of second
// end of time critical section: release I2C bus
I2C_MUTEX_UNLOCK();
timeSource = _lora;
timesyncer.attach(TIME_SYNC_INTERVAL * 60, timeSync); // regular repeat
ESP_LOGI(TAG, "[%0.3f] Timesync finished, time was adjusted",
@ -240,13 +246,6 @@ int adjustTime(uint32_t t_sec, uint16_t t_msec) {
} else
ESP_LOGW(TAG, "[%0.3f] Timesync failed, outdated time calculated",
millis() / 1000.0);
return 0; // success
error:
ESP_LOGW(TAG, "[%0.3f] Timesync failed, handshake timed out",
millis() / 1000.0);
return 1;
}
#endif