fsfw/storagemanager/LocalPool.cpp

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#include "LocalPool.h"
#include <cstring>
LocalPool::LocalPool(object_id_t setObjectId, const LocalPoolConfig& poolConfig,
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bool registered, bool spillsToHigherPools):
SystemObject(setObjectId, registered),
NUMBER_OF_POOLS(poolConfig.size()),
spillsToHigherPools(spillsToHigherPools) {
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if(NUMBER_OF_POOLS == 0) {
sif::error << "LocalPool::LocalPool: Passed pool configuration is "
<< " invalid!" << std::endl;
}
max_pools_t index = 0;
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for (const auto& currentPoolConfig: poolConfig) {
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this->numberOfElements[index] = currentPoolConfig.first;
this->elementSizes[index] = currentPoolConfig.second;
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store[index] = std::vector<uint8_t>(
numberOfElements[index] * elementSizes[index]);
sizeLists[index] = std::vector<size_type>(numberOfElements[index]);
for(auto& size: sizeLists[index]) {
size = STORAGE_FREE;
}
index++;
}
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}
LocalPool::~LocalPool(void) {}
ReturnValue_t LocalPool::addData(store_address_t* storageId,
const uint8_t* data, size_t size, bool ignoreFault) {
ReturnValue_t status = reserveSpace(size, storageId, ignoreFault);
if (status == RETURN_OK) {
write(*storageId, data, size);
}
return status;
}
ReturnValue_t LocalPool::getData(store_address_t packetId,
const uint8_t **packetPtr, size_t *size) {
uint8_t* tempData = nullptr;
ReturnValue_t status = modifyData(packetId, &tempData, size);
*packetPtr = tempData;
return status;
}
ReturnValue_t LocalPool::getData(store_address_t storeId,
ConstStorageAccessor& storeAccessor) {
uint8_t* tempData = nullptr;
ReturnValue_t status = modifyData(storeId, &tempData,
&storeAccessor.size_);
storeAccessor.assignStore(this);
storeAccessor.constDataPointer = tempData;
return status;
}
ConstAccessorPair LocalPool::getData(store_address_t storeId) {
uint8_t* tempData = nullptr;
ConstStorageAccessor constAccessor(storeId, this);
ReturnValue_t status = modifyData(storeId, &tempData, &constAccessor.size_);
constAccessor.constDataPointer = tempData;
return ConstAccessorPair(status, std::move(constAccessor));
}
ReturnValue_t LocalPool::getFreeElement(store_address_t *storageId,
const size_t size, uint8_t **pData, bool ignoreFault) {
ReturnValue_t status = reserveSpace(size, storageId, ignoreFault);
if (status == RETURN_OK) {
*pData = &store[storageId->poolIndex][getRawPosition(*storageId)];
}
else {
*pData = nullptr;
}
return status;
}
AccessorPair LocalPool::modifyData(store_address_t storeId) {
StorageAccessor accessor(storeId, this);
ReturnValue_t status = modifyData(storeId, &accessor.dataPointer,
&accessor.size_);
accessor.assignConstPointer();
return AccessorPair(status, std::move(accessor));
}
ReturnValue_t LocalPool::modifyData(store_address_t storeId,
StorageAccessor& storeAccessor) {
storeAccessor.assignStore(this);
ReturnValue_t status = modifyData(storeId, &storeAccessor.dataPointer,
&storeAccessor.size_);
storeAccessor.assignConstPointer();
return status;
}
ReturnValue_t LocalPool::modifyData(store_address_t storeId,
uint8_t **packetPtr, size_t *size) {
ReturnValue_t status = RETURN_FAILED;
if (storeId.poolIndex >= NUMBER_OF_POOLS) {
return ILLEGAL_STORAGE_ID;
}
if ((storeId.packetIndex >= numberOfElements[storeId.poolIndex])) {
return ILLEGAL_STORAGE_ID;
}
if (sizeLists[storeId.poolIndex][storeId.packetIndex]
!= STORAGE_FREE) {
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size_type packetPosition = getRawPosition(storeId);
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*packetPtr = &store[storeId.poolIndex][packetPosition];
*size = sizeLists[storeId.poolIndex][storeId.packetIndex];
status = RETURN_OK;
}
else {
status = DATA_DOES_NOT_EXIST;
}
return status;
}
ReturnValue_t LocalPool::deleteData(store_address_t storeId) {
#if FSFW_DEBUGGING == 1
sif::debug << "Delete: Pool: " << std::dec << storeId.poolIndex
<< " Index: " << storeId.packetIndex << std::endl;
#endif
ReturnValue_t status = RETURN_OK;
size_type pageSize = getPageSize(storeId.poolIndex);
if ((pageSize != 0) and
(storeId.packetIndex < numberOfElements[storeId.poolIndex])) {
uint16_t packetPosition = getRawPosition(storeId);
uint8_t* ptr = &store[storeId.poolIndex][packetPosition];
std::memset(ptr, 0, pageSize);
//Set free list
sizeLists[storeId.poolIndex][storeId.packetIndex] = STORAGE_FREE;
}
else {
//pool_index or packet_index is too large
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sif::error << "LocalPool::deleteData: Illegal store ID, no deletion!"
<< std::endl;
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status = ILLEGAL_STORAGE_ID;
}
return status;
}
ReturnValue_t LocalPool::deleteData(uint8_t *ptr, size_t size,
store_address_t *storeId) {
store_address_t localId;
ReturnValue_t result = ILLEGAL_ADDRESS;
for (uint16_t n = 0; n < NUMBER_OF_POOLS; n++) {
//Not sure if new allocates all stores in order. so better be careful.
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if ((store[n].data() <= ptr) and
(&store[n][numberOfElements[n]*elementSizes[n]] > ptr)) {
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localId.poolIndex = n;
uint32_t deltaAddress = ptr - store[n].data();
// Getting any data from the right "block" is ok.
// This is necessary, as IF's sometimes don't point to the first
// element of an object.
localId.packetIndex = deltaAddress / elementSizes[n];
result = deleteData(localId);
#if FSFW_DEBUGGING == 1
if (deltaAddress % elementSizes[n] != 0) {
sif::error << "LocalPool::deleteData: Address not aligned!"
<< std::endl;
}
#endif
break;
}
}
if (storeId != nullptr) {
*storeId = localId;
}
return result;
}
ReturnValue_t LocalPool::initialize() {
ReturnValue_t result = SystemObject::initialize();
if (result != RETURN_OK) {
return result;
}
internalErrorReporter = objectManager->get<InternalErrorReporterIF>(
objects::INTERNAL_ERROR_REPORTER);
if (internalErrorReporter == nullptr){
return ObjectManagerIF::INTERNAL_ERR_REPORTER_UNINIT;
}
//Check if any pool size is large than the maximum allowed.
for (uint8_t count = 0; count < NUMBER_OF_POOLS; count++) {
if (elementSizes[count] >= STORAGE_FREE) {
sif::error << "LocalPool::initialize: Pool is too large! "
"Max. allowed size is: " << (STORAGE_FREE - 1) << std::endl;
return StorageManagerIF::POOL_TOO_LARGE;
}
}
return HasReturnvaluesIF::RETURN_OK;
}
void LocalPool::clearStore() {
for(auto& sizeList: sizeLists) {
for(auto& size: sizeList) {
size = STORAGE_FREE;
}
// std::memset(sizeList[index], 0xff,
// numberOfElements[index] * sizeof(size_type));
}
}
ReturnValue_t LocalPool::reserveSpace(const size_t size,
store_address_t *storeId, bool ignoreFault) {
ReturnValue_t status = getPoolIndex(size, &storeId->poolIndex);
if (status != RETURN_OK) {
sif::error << "LocalPool( " << std::hex << getObjectId() << std::dec
<< " )::reserveSpace: Packet too large." << std::endl;
return status;
}
status = findEmpty(storeId->poolIndex, &storeId->packetIndex);
while (status != RETURN_OK && spillsToHigherPools) {
status = getPoolIndex(size, &storeId->poolIndex, storeId->poolIndex + 1);
if (status != RETURN_OK) {
//We don't find any fitting pool anymore.
break;
}
status = findEmpty(storeId->poolIndex, &storeId->packetIndex);
}
if (status == RETURN_OK) {
#if FSFW_DEBUGGING == 1
sif::debug << "Reserve: Pool: " << std::dec
<< storeId->poolIndex << " Index: " << storeId->packetIndex
<< std::endl;
#endif
sizeLists[storeId->poolIndex][storeId->packetIndex] = size;
}
else {
if ((not ignoreFault) and (internalErrorReporter != nullptr)) {
internalErrorReporter->storeFull();
}
}
return status;
}
void LocalPool::write(store_address_t storeId, const uint8_t *data,
size_t size) {
uint8_t* ptr = nullptr;
size_type packetPosition = getRawPosition(storeId);
// Size was checked before calling this function.
ptr = &store[storeId.poolIndex][packetPosition];
std::memcpy(ptr, data, size);
sizeLists[storeId.poolIndex][storeId.packetIndex] = size;
}
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LocalPool::size_type LocalPool::getPageSize(max_pools_t poolIndex) {
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if (poolIndex < NUMBER_OF_POOLS) {
return elementSizes[poolIndex];
}
else {
return 0;
}
}
void LocalPool::setToSpillToHigherPools(bool enable) {
this->spillsToHigherPools = enable;
}
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ReturnValue_t LocalPool::getPoolIndex(size_t packetSize, uint16_t *poolIndex,
uint16_t startAtIndex) {
for (uint16_t n = startAtIndex; n < NUMBER_OF_POOLS; n++) {
#if FSFW_DEBUGGING == 1
sif::debug << "LocalPool " << getObjectId() << "::getPoolIndex: Pool: "
<< n << ", Element Size: " << elementSizes[n] << std::endl;
#endif
if (elementSizes[n] >= packetSize) {
*poolIndex = n;
return RETURN_OK;
}
}
return DATA_TOO_LARGE;
}
LocalPool::size_type LocalPool::getRawPosition(store_address_t storeId) {
return storeId.packetIndex * elementSizes[storeId.poolIndex];
}
ReturnValue_t LocalPool::findEmpty(n_pool_elem_t poolIndex, uint16_t *element) {
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ReturnValue_t status = DATA_STORAGE_FULL;
for (uint16_t foundElement = 0; foundElement < numberOfElements[poolIndex];
foundElement++) {
if (sizeLists[poolIndex][foundElement] == STORAGE_FREE) {
*element = foundElement;
status = RETURN_OK;
break;
}
}
return status;
}
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size_t LocalPool::getTotalSize(size_t* additionalSize) {
size_t totalSize = 0;
size_t sizesSize = 0;
for(uint8_t idx = 0; idx < NUMBER_OF_POOLS; idx ++) {
totalSize += elementSizes[idx] * numberOfElements[idx];
sizesSize += numberOfElements[idx] * sizeof(size_type);
}
if(additionalSize != nullptr) {
*additionalSize = sizesSize;
}
return totalSize;
}
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void LocalPool::getFillCount(uint8_t *buffer, uint8_t *bytesWritten) {
if(bytesWritten == nullptr or buffer == nullptr) {
return;
}
uint16_t reservedHits = 0;
uint8_t idx = 0;
uint16_t sum = 0;
for(; idx < NUMBER_OF_POOLS; idx ++) {
for(const auto& size: sizeLists[idx]) {
if(size != STORAGE_FREE) {
reservedHits++;
}
}
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buffer[idx] = static_cast<float>(reservedHits) /
numberOfElements[idx] * 100;
*bytesWritten += 1;
sum += buffer[idx];
reservedHits = 0;
}
buffer[idx] = sum / NUMBER_OF_POOLS;
*bytesWritten += 1;
}
void LocalPool::clearPage(max_pools_t pageIndex) {
if(pageIndex >= NUMBER_OF_POOLS) {
return;
}
// Mark the storage as free
for(auto& size: sizeLists[pageIndex]) {
size = STORAGE_FREE;
}
// Set all the page content to 0.
std::memset(store[pageIndex].data(), 0, elementSizes[pageIndex]);
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}