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Merge branch 'mueller_FIFO_static_normal' of https://egit.irs.uni-stuttgart.de/KSat/fsfw into mueller_FIFO_static_normal

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This commit is contained in:
Robin Müller 2020-09-01 12:58:38 +02:00
commit d5accd16ba
2 changed files with 62 additions and 9 deletions
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16
container/SimpleRingBuffer.cpp
View File

@ -1,18 +1,23 @@
#include "SimpleRingBuffer.h"
#include <string.h>
SimpleRingBuffer::SimpleRingBuffer(uint32_t size, bool overwriteOld) :
RingBufferBase<>(0, size, overwriteOld), buffer(NULL) {
SimpleRingBuffer::SimpleRingBuffer(const size_t size, bool overwriteOld) :
RingBufferBase<>(0, size, overwriteOld) {
buffer = new uint8_t[size];
}
SimpleRingBuffer::SimpleRingBuffer(uint8_t *buffer, const size_t size,
bool overwriteOld):
RingBufferBase<>(0, size, overwriteOld), buffer(buffer) {}
SimpleRingBuffer::~SimpleRingBuffer() {
delete[] buffer;
}
ReturnValue_t SimpleRingBuffer::writeData(const uint8_t* data,
uint32_t amount) {
if (availableWriteSpace() >= amount || overwriteOld) {
if (availableWriteSpace() >= amount or overwriteOld) {
uint32_t amountTillWrap = writeTillWrap();
if (amountTillWrap >= amount) {
memcpy(&buffer[write], data, amount);
@ -38,7 +43,7 @@ ReturnValue_t SimpleRingBuffer::readData(uint8_t* data, uint32_t amount,
return HasReturnvaluesIF::RETURN_FAILED;
}
}
if (trueAmount != NULL) {
if (trueAmount != nullptr) {
*trueAmount = amount;
}
if (amountTillWrap >= amount) {
@ -60,9 +65,10 @@ ReturnValue_t SimpleRingBuffer::deleteData(uint32_t amount,
return HasReturnvaluesIF::RETURN_FAILED;
}
}
if (trueAmount != NULL) {
if (trueAmount != nullptr) {
*trueAmount = amount;
}
incrementRead(amount, READ_PTR);
return HasReturnvaluesIF::RETURN_OK;
}

55
container/SimpleRingBuffer.h
View File

@ -4,17 +4,64 @@
#include "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:
SimpleRingBuffer(uint32_t size, bool overwriteOld);
/**
* 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);
ReturnValue_t readData(uint8_t* data, uint32_t amount, bool readRemaining = false, uint32_t* trueAmount = NULL);
ReturnValue_t deleteData(uint32_t amount, bool deleteRemaining = false, uint32_t* trueAmount = NULL);
/**
* 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;
uint8_t* buffer = nullptr;
};
#endif /* FRAMEWORK_CONTAINER_SIMPLERINGBUFFER_H_ */