fsfw/datapool/PoolDataSetBase.cpp
2020-12-27 12:59:25 +01:00

204 lines
5.9 KiB
C++

#include "PoolDataSetBase.h"
#include "../serviceinterface/ServiceInterfaceStream.h"
PoolDataSetBase::PoolDataSetBase(PoolVariableIF** registeredVariablesArray,
const size_t maxFillCount):
registeredVariables(registeredVariablesArray),
maxFillCount(maxFillCount) {
}
PoolDataSetBase::~PoolDataSetBase() {}
ReturnValue_t PoolDataSetBase::registerVariable(
PoolVariableIF *variable) {
if (state != States::STATE_SET_UNINITIALISED) {
sif::error << "DataSet::registerVariable: "
"Call made in wrong position." << std::endl;
return DataSetIF::DATA_SET_UNINITIALISED;
}
if (variable == nullptr) {
sif::error << "DataSet::registerVariable: "
"Pool variable is nullptr." << std::endl;
return DataSetIF::POOL_VAR_NULL;
}
if (fillCount >= maxFillCount) {
sif::error << "DataSet::registerVariable: "
"DataSet is full." << std::endl;
return DataSetIF::DATA_SET_FULL;
}
registeredVariables[fillCount] = variable;
fillCount++;
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t PoolDataSetBase::read(uint32_t lockTimeout) {
ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
ReturnValue_t error = result;
if (state == States::STATE_SET_UNINITIALISED) {
lockDataPool(lockTimeout);
for (uint16_t count = 0; count < fillCount; count++) {
result = readVariable(count);
if(result != RETURN_OK) {
error = result;
}
}
state = States::STATE_SET_WAS_READ;
unlockDataPool();
}
else {
sif::error << "DataSet::read(): "
"Call made in wrong position. Don't forget to commit"
" member datasets!" << std::endl;
result = SET_WAS_ALREADY_READ;
}
if(error != HasReturnvaluesIF::RETURN_OK) {
result = error;
}
return result;
}
uint16_t PoolDataSetBase::getFillCount() const {
return fillCount;
}
ReturnValue_t PoolDataSetBase::readVariable(uint16_t count) {
ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
if(registeredVariables[count] == nullptr) {
// configuration error.
return HasReturnvaluesIF::RETURN_FAILED;
}
// These checks are often performed by the respective
// variable implementation too, but I guess a double check does not hurt.
if (registeredVariables[count]->getReadWriteMode() !=
PoolVariableIF::VAR_WRITE and
registeredVariables[count]->getDataPoolId()
!= PoolVariableIF::NO_PARAMETER)
{
if(protectEveryReadCommitCall) {
result = registeredVariables[count]->read(mutexTimeout);
}
else {
result = registeredVariables[count]->readWithoutLock();
}
if(result != HasReturnvaluesIF::RETURN_OK) {
result = INVALID_PARAMETER_DEFINITION;
}
}
return result;
}
ReturnValue_t PoolDataSetBase::commit(uint32_t lockTimeout) {
if (state == States::STATE_SET_WAS_READ) {
handleAlreadyReadDatasetCommit(lockTimeout);
return HasReturnvaluesIF::RETURN_OK;
}
else {
return handleUnreadDatasetCommit(lockTimeout);
}
}
void PoolDataSetBase::handleAlreadyReadDatasetCommit(uint32_t lockTimeout) {
lockDataPool(lockTimeout);
for (uint16_t count = 0; count < fillCount; count++) {
if (registeredVariables[count]->getReadWriteMode()
!= PoolVariableIF::VAR_READ
&& registeredVariables[count]->getDataPoolId()
!= PoolVariableIF::NO_PARAMETER) {
if(protectEveryReadCommitCall) {
registeredVariables[count]->commit(mutexTimeout);
}
else {
registeredVariables[count]->commitWithoutLock();
}
}
}
state = States::STATE_SET_UNINITIALISED;
unlockDataPool();
}
ReturnValue_t PoolDataSetBase::handleUnreadDatasetCommit(uint32_t lockTimeout) {
ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
lockDataPool(lockTimeout);
for (uint16_t count = 0; count < fillCount; count++) {
if (registeredVariables[count]->getReadWriteMode()
== PoolVariableIF::VAR_WRITE
&& registeredVariables[count]->getDataPoolId()
!= PoolVariableIF::NO_PARAMETER) {
if(protectEveryReadCommitCall) {
result = registeredVariables[count]->commit(mutexTimeout);
}
else {
result = registeredVariables[count]->commitWithoutLock();
}
} else if (registeredVariables[count]->getDataPoolId()
!= PoolVariableIF::NO_PARAMETER) {
if (result != COMMITING_WITHOUT_READING) {
sif::error << "DataSet::commit(): commit-without-read call made "
"with non write-only variable." << std::endl;
result = COMMITING_WITHOUT_READING;
}
}
}
state = States::STATE_SET_UNINITIALISED;
unlockDataPool();
return result;
}
ReturnValue_t PoolDataSetBase::lockDataPool(uint32_t timeoutMs) {
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t PoolDataSetBase::unlockDataPool() {
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t PoolDataSetBase::serialize(uint8_t** buffer, size_t* size,
const size_t maxSize, SerializeIF::Endianness streamEndianness) const {
ReturnValue_t result = HasReturnvaluesIF::RETURN_FAILED;
for (uint16_t count = 0; count < fillCount; count++) {
result = registeredVariables[count]->serialize(buffer, size, maxSize,
streamEndianness);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
}
return result;
}
ReturnValue_t PoolDataSetBase::deSerialize(const uint8_t** buffer, size_t* size,
SerializeIF::Endianness streamEndianness) {
ReturnValue_t result = HasReturnvaluesIF::RETURN_FAILED;
for (uint16_t count = 0; count < fillCount; count++) {
result = registeredVariables[count]->deSerialize(buffer, size,
streamEndianness);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
}
return result;
}
size_t PoolDataSetBase::getSerializedSize() const {
uint32_t size = 0;
for (uint16_t count = 0; count < fillCount; count++) {
size += registeredVariables[count]->getSerializedSize();
}
return size;
}
void PoolDataSetBase::setContainer(PoolVariableIF **variablesContainer) {
this->registeredVariables = variablesContainer;
}
void PoolDataSetBase::setReadCommitProtectionBehaviour(
bool protectEveryReadCommit, uint32_t mutexTimeout) {
this->protectEveryReadCommitCall = protectEveryReadCommit;
this->mutexTimeout = mutexTimeout;
}