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changes from mueller/master taken over

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This commit is contained in:
Robin Müller
2020-12-14 23:56:44 +01:00
parent 313d898aef
commit 3cc053a581
11 changed files with 111 additions and 95 deletions
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39
osal/FreeRTOS/PeriodicTask.cpp
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@ -80,10 +80,18 @@ void PeriodicTask::taskFunctionality() {
object->performOperation();
}
checkMissedDeadline(xLastWakeTime, xPeriod);
vTaskDelayUntil(&xLastWakeTime, xPeriod);
#if (tskKERNEL_VERSION_MAJOR == 10 && tskKERNEL_VERSION_MINOR >= 4) || \
tskKERNEL_VERSION_MAJOR > 10
BaseType_t wasDelayed = xTaskDelayUntil(&xLastWakeTime, xPeriod);
if(wasDelayed == pdFALSE) {
handleMissedDeadline();
}
#else
if(checkMissedDeadline(xLastWakeTime, xPeriod)) {
handleMissedDeadline();
}
vTaskDelayUntil(&xLastWakeTime, xPeriod);
#endif
}
}
@ -105,29 +113,6 @@ uint32_t PeriodicTask::getPeriodMs() const {
return period * 1000;
}
void PeriodicTask::checkMissedDeadline(const TickType_t xLastWakeTime,
const TickType_t interval) {
/* Check whether deadline was missed while also taking overflows
* into account. Drawing this on paper with a timeline helps to understand
* it. */
TickType_t currentTickCount = xTaskGetTickCount();
TickType_t timeToWake = xLastWakeTime + interval;
// Time to wake has not overflown.
if(timeToWake > xLastWakeTime) {
/* If the current time has overflown exclusively or the current
* tick count is simply larger than the time to wake, a deadline was
* missed */
if((currentTickCount < xLastWakeTime) or (currentTickCount > timeToWake)) {
handleMissedDeadline();
}
}
/* Time to wake has overflown. A deadline was missed if the current time
* is larger than the time to wake */
else if((timeToWake < xLastWakeTime) and (currentTickCount > timeToWake)) {
handleMissedDeadline();
}
}
TaskHandle_t PeriodicTask::getTaskHandle() {
return handle;
}