58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
#include "Clock.h"
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#include "../ipc/MutexGuard.h"
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ReturnValue_t Clock::convertUTCToTT(timeval utc, timeval *tt) {
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uint16_t leapSeconds;
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ReturnValue_t result = getLeapSeconds(&leapSeconds);
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if (result != HasReturnvaluesIF::RETURN_OK) {
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return result;
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}
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timeval leapSeconds_timeval = { 0, 0 };
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leapSeconds_timeval.tv_sec = leapSeconds;
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//initial offset between UTC and TAI
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timeval UTCtoTAI1972 = { 10, 0 };
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timeval TAItoTT = { 32, 184000 };
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*tt = utc + leapSeconds_timeval + UTCtoTAI1972 + TAItoTT;
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return HasReturnvaluesIF::RETURN_OK;
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}
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ReturnValue_t Clock::setLeapSeconds(const uint16_t leapSeconds_) {
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if (checkOrCreateClockMutex() != HasReturnvaluesIF::RETURN_OK) {
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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MutexGuard helper(timeMutex);
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leapSeconds = leapSeconds_;
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return HasReturnvaluesIF::RETURN_OK;
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}
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ReturnValue_t Clock::getLeapSeconds(uint16_t *leapSeconds_) {
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if (timeMutex == nullptr) {
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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MutexGuard helper(timeMutex);
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*leapSeconds_ = leapSeconds;
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return HasReturnvaluesIF::RETURN_OK;
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}
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static ReturnValue_t Clock::checkOrCreateClockMutex() {
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if (timeMutex == nullptr) {
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MutexFactory *mutexFactory = MutexFactory::instance();
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if (mutexFactory == nullptr) {
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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timeMutex = mutexFactory->createMutex();
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if (timeMutex == nullptr) {
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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}
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return HasReturnvaluesIF::RETURN_OK;
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}
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