fsfw/osal/rtems/MultiObjectTask.cpp

89 lines
2.8 KiB
C++

/**
* @file MultiObjectTask.cpp
* @brief This file defines the MultiObjectTask class.
* @date 30.01.2014
* @author baetz
*/
#include "../../serviceinterface/ServiceInterfaceStream.h"
#include "../../tasks/ExecutableObjectIF.h"
#include "MultiObjectTask.h"
MultiObjectTask::MultiObjectTask(const char *name, rtems_task_priority setPriority,
size_t setStack, rtems_interval setPeriod, void (*setDeadlineMissedFunc)()) :
TaskBase(setPriority, setStack, name), periodTicks(
RtemsBasic::convertMsToTicks(setPeriod)), periodId(0), deadlineMissedFunc(
setDeadlineMissedFunc) {
}
MultiObjectTask::~MultiObjectTask(void) {
//Do not delete objects, we were responsible for ptrs only.
rtems_rate_monotonic_delete(periodId);
}
rtems_task MultiObjectTask::taskEntryPoint(rtems_task_argument argument) {
//The argument is re-interpreted as MultiObjectTask. The Task object is global, so it is found from any place.
MultiObjectTask *originalTask(reinterpret_cast<MultiObjectTask*>(argument));
originalTask->taskFunctionality();
}
ReturnValue_t MultiObjectTask::startTask() {
rtems_status_code status = rtems_task_start(id, MultiObjectTask::taskEntryPoint,
rtems_task_argument((void *) this));
if (status != RTEMS_SUCCESSFUL) {
error << "ObjectTask::startTask for " << std::hex << this->getId()
<< std::dec << " failed." << std::endl;
}
switch(status){
case RTEMS_SUCCESSFUL:
//ask started successfully
return HasReturnvaluesIF::RETURN_OK;
default:
/* RTEMS_INVALID_ADDRESS - invalid task entry point
RTEMS_INVALID_ID - invalid task id
RTEMS_INCORRECT_STATE - task not in the dormant state
RTEMS_ILLEGAL_ON_REMOTE_OBJECT - cannot start remote task */
return HasReturnvaluesIF::RETURN_FAILED;
}
}
ReturnValue_t MultiObjectTask::sleepFor(uint32_t ms) {
return TaskBase::sleepFor(ms);
}
void MultiObjectTask::taskFunctionality() {
TaskBase::setAndStartPeriod(periodTicks,&periodId);
//The task's "infinite" inner loop is entered.
while (1) {
for (ObjectList::iterator it = objectList.begin();
it != objectList.end(); ++it) {
(*it)->performOperation();
}
rtems_status_code status = TaskBase::restartPeriod(periodTicks,periodId);
if (status == RTEMS_TIMEOUT) {
char nameSpace[8] = { 0 };
char* ptr = rtems_object_get_name(getId(), sizeof(nameSpace),
nameSpace);
error << "ObjectTask: " << ptr << " Deadline missed." << std::endl;
if (this->deadlineMissedFunc != NULL) {
this->deadlineMissedFunc();
}
}
}
}
ReturnValue_t MultiObjectTask::addComponent(object_id_t object) {
ExecutableObjectIF* newObject = objectManager->get<ExecutableObjectIF>(
object);
if (newObject == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
objectList.push_back(newObject);
newObject->setTaskIF(this);
return HasReturnvaluesIF::RETURN_OK;
}
uint32_t MultiObjectTask::getPeriodMs() const {
return RtemsBasic::convertTicksToMs(periodTicks);
}