fsfw/container/FIFOBase.h

80 lines
1.8 KiB
C++

#ifndef FSFW_CONTAINER_FIFOBASE_H_
#define FSFW_CONTAINER_FIFOBASE_H_
#include "../returnvalues/HasReturnvaluesIF.h"
#include <cstddef>
#include <cstring>
template <typename T>
class FIFOBase {
public:
static const uint8_t INTERFACE_ID = CLASS_ID::FIFO_CLASS;
static const ReturnValue_t FULL = MAKE_RETURN_CODE(1);
static const ReturnValue_t EMPTY = MAKE_RETURN_CODE(2);
/** Default ctor, takes pointer to first entry of underlying container
* and maximum capacity */
FIFOBase(T* values, const size_t maxCapacity);
/**
* Insert value into FIFO
* @param value
* @return RETURN_OK on success, FULL if full
*/
ReturnValue_t insert(T value);
/**
* Retrieve item from FIFO. This removes the item from the FIFO.
* @param value Must point to a valid T
* @return RETURN_OK on success, EMPTY if empty and FAILED if nullptr check failed
*/
ReturnValue_t retrieve(T *value);
/**
* Retrieve item from FIFO without removing it from FIFO.
* @param value Must point to a valid T
* @return RETURN_OK on success, EMPTY if empty and FAILED if nullptr check failed
*/
ReturnValue_t peek(T * value);
/**
* Remove item from FIFO.
* @return RETURN_OK on success, EMPTY if empty
*/
ReturnValue_t pop();
/***
* Check if FIFO is empty
* @return True if empty, False if not
*/
bool empty();
/***
* Check if FIFO is Full
* @return True if full, False if not
*/
bool full();
/***
* Current used size (elements) used
* @return size_t in elements
*/
size_t size();
/***
* Get maximal capacity of fifo
* @return size_t with max capacity of this fifo
*/
size_t getMaxCapacity() const;
protected:
void setContainer(T* data);
size_t maxCapacity = 0;
T* values;
size_t readIndex = 0;
size_t writeIndex = 0;
size_t currentSize = 0;
size_t next(size_t current);
};
#include "FIFOBase.tpp"
#endif /* FSFW_CONTAINER_FIFOBASE_H_ */