fsfw/container/SimpleRingBuffer.h

69 lines
1.8 KiB
C++

#ifndef FRAMEWORK_CONTAINER_SIMPLERINGBUFFER_H_
#define FRAMEWORK_CONTAINER_SIMPLERINGBUFFER_H_
#include <framework/container/RingBufferBase.h>
#include <stddef.h>
/**
* @brief Circular buffer implementation, useful for buffering
* into data streams.
* @details
* Note that the deleteData() has to be called to increment the read pointer.
* This class allocated dynamically, so
* @ingroup containers
*/
class SimpleRingBuffer: public RingBufferBase<> {
public:
/**
* This constructor allocates a new internal buffer with the supplied size.
* @param size
* @param overwriteOld
*/
SimpleRingBuffer(const size_t size, bool overwriteOld);
/**
* This constructor takes an external buffer with the specified size.
* @param buffer
* @param size
* @param overwriteOld
*/
SimpleRingBuffer(uint8_t* buffer, const size_t size, bool overwriteOld);
virtual ~SimpleRingBuffer();
/**
* Write to circular buffer and increment write pointer by amount
* @param data
* @param amount
* @return
*/
ReturnValue_t writeData(const uint8_t* data, uint32_t amount);
/**
* Read from circular buffer at read pointer
* @param data
* @param amount
* @param readRemaining
* @param trueAmount
* @return
*/
ReturnValue_t readData(uint8_t* data, uint32_t amount,
bool readRemaining = false, uint32_t* trueAmount = nullptr);
/**
* Delete data starting by incrementing read pointer
* @param amount
* @param deleteRemaining
* @param trueAmount
* @return
*/
ReturnValue_t deleteData(uint32_t amount, bool deleteRemaining = false,
uint32_t* trueAmount = nullptr);
private:
// static const uint8_t TEMP_READ_PTR = 1;
static const uint8_t READ_PTR = 0;
uint8_t* buffer = nullptr;
};
#endif /* FRAMEWORK_CONTAINER_SIMPLERINGBUFFER_H_ */