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new shared ring buffer

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This commit is contained in:
Robin Müller
2020-07-09 14:26:15 +02:00
parent 64c290ffe4
commit 6f50356964
11 changed files with 216 additions and 86 deletions
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27
container/SimpleRingBuffer.cpp
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@ -16,12 +16,14 @@ SimpleRingBuffer::~SimpleRingBuffer() {
}
ReturnValue_t SimpleRingBuffer::writeData(const uint8_t* data,
uint32_t amount) {
size_t amount) {
if (availableWriteSpace() >= amount or overwriteOld) {
uint32_t amountTillWrap = writeTillWrap();
size_t amountTillWrap = writeTillWrap();
if (amountTillWrap >= amount) {
// remaining size in buffer is sufficient to fit full amount.
memcpy(&buffer[write], data, amount);
} else {
}
else {
memcpy(&buffer[write], data, amountTillWrap);
memcpy(buffer, data + amountTillWrap, amount - amountTillWrap);
}
@ -32,12 +34,13 @@ ReturnValue_t SimpleRingBuffer::writeData(const uint8_t* data,
}
}
ReturnValue_t SimpleRingBuffer::readData(uint8_t* data, uint32_t amount,
bool readRemaining, uint32_t* trueAmount) {
uint32_t availableData = availableReadData(READ_PTR);
uint32_t amountTillWrap = readTillWrap(READ_PTR);
ReturnValue_t SimpleRingBuffer::readData(uint8_t* data, size_t amount,
bool incrementReadPtr, bool readRemaining, size_t* trueAmount) {
size_t availableData = availableReadData(READ_PTR);
size_t amountTillWrap = readTillWrap(READ_PTR);
if (availableData < amount) {
if (readRemaining) {
// more data available than amount specified.
amount = availableData;
} else {
return HasReturnvaluesIF::RETURN_FAILED;
@ -52,12 +55,16 @@ ReturnValue_t SimpleRingBuffer::readData(uint8_t* data, uint32_t amount,
memcpy(data, &buffer[read[READ_PTR]], amountTillWrap);
memcpy(data + amountTillWrap, buffer, amount - amountTillWrap);
}
if(incrementReadPtr) {
deleteData(amount, readRemaining);
}
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t SimpleRingBuffer::deleteData(uint32_t amount,
bool deleteRemaining, uint32_t* trueAmount) {
uint32_t availableData = availableReadData(READ_PTR);
ReturnValue_t SimpleRingBuffer::deleteData(size_t amount,
bool deleteRemaining, size_t* trueAmount) {
size_t availableData = availableReadData(READ_PTR);
if (availableData < amount) {
if (deleteRemaining) {
amount = availableData;