fsfw/osal/linux/FixedTimeslotTask.h

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2018-07-13 18:28:26 +02:00
#ifndef FRAMEWORK_OSAL_LINUX_FIXEDTIMESLOTTASK_H_
#define FRAMEWORK_OSAL_LINUX_FIXEDTIMESLOTTASK_H_
#include <framework/tasks/FixedTimeslotTaskIF.h>
#include <framework/devicehandlers/FixedSlotSequence.h>
#include <framework/osal/linux/PosixThread.h>
#include <pthread.h>
class FixedTimeslotTask: public FixedTimeslotTaskIF, public PosixThread {
public:
FixedTimeslotTask(const char* name_, int priority_, size_t stackSize_, uint32_t periodMs_);
virtual ~FixedTimeslotTask();
virtual ReturnValue_t startTask();
virtual ReturnValue_t sleepFor(uint32_t ms);
virtual uint32_t getPeriodMs() const;
virtual ReturnValue_t addSlot(object_id_t componentId, uint32_t slotTimeMs, int8_t executionStep);
virtual ReturnValue_t checkSequence() const;
/**
* This static function can be used as #deadlineMissedFunc.
* It counts missedDeadlines and prints the number of missed deadlines every 10th time.
*/
static void missedDeadlineCounter();
/**
* A helper variable to count missed deadlines.
*/
static uint32_t deadlineMissedCount;
protected:
/**
* @brief This function holds the main functionality of the thread.
*
*
* @details Holding the main functionality of the task, this method is most important.
* It links the functionalities provided by FixedSlotSequence with the OS's System Calls
* to keep the timing of the periods.
*/
virtual void taskFunctionality();
private:
/**
* @brief This is the entry point in a new thread.
*
* @details This method, that is the entry point in the new thread and calls taskFunctionality of the child class.
* Needs a valid pointer to the derived class.
*/
static void* taskEntryPoint(void* arg);
FixedSlotSequence pst;
bool started;
};
#endif /* FRAMEWORK_OSAL_LINUX_FIXEDTIMESLOTTASK_H_ */