eive-obsw/mission/tmtc/TmStore.cpp

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#include "TmStore.h"
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#include <mission/memory/SdCardMountedIF.h>
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#include <algorithm>
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#include <cinttypes>
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#include <filesystem>
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#include <fstream>
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using namespace returnvalue;
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TmStore::TmStore(object_id_t objectId, std::string baseName, RolloverInterval intervalUnit,
uint32_t intervalCount, PacketFilter filter, SdCardMountedIF& sdcMan)
: SystemObject(objectId), filter(filter), baseName(std::move(baseName)), sdcMan(sdcMan) {
calcDiffSeconds(intervalUnit, intervalCount);
}
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ReturnValue_t TmStore::passPacket(PusTmReader& reader) {
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bool inApidList = false;
if (filter.apid) {
auto& apidFilter = filter.apid.value();
if (std::find(apidFilter.begin(), apidFilter.end(), reader.getApid()) != apidFilter.end()) {
if (not filter.serviceSubservices and not filter.services) {
return storePacket(reader);
}
inApidList = true;
}
}
std::pair<uint8_t, uint8_t> serviceSubservice;
serviceSubservice.first = reader.getService();
serviceSubservice.second = reader.getSubService();
if (filter.services) {
auto& serviceFilter = filter.services.value();
if (std::find(serviceFilter.begin(), serviceFilter.end(), serviceSubservice.first) !=
serviceFilter.end()) {
if (filter.apid and inApidList) {
return storePacket(reader);
}
}
}
if (filter.serviceSubservices) {
auto& serviceSubserviceFilter = filter.serviceSubservices.value();
if (std::find(serviceSubserviceFilter.begin(), serviceSubserviceFilter.end(),
serviceSubservice) != serviceSubserviceFilter.end()) {
if (filter.apid and inApidList) {
return storePacket(reader);
}
}
}
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return returnvalue::OK;
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}
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ReturnValue_t TmStore::storePacket(PusTmReader& reader) {
using namespace std::filesystem;
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if (baseDirUninitialized) {
updateBaseDir();
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}
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// It is assumed here that the filesystem is usable.
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if (not mostRecentFile) {
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assignAndOrCreateMostRecentFile();
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}
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if (currentTv.tv_sec < mostRecentTv.value().tv_sec or
currentTv.tv_sec - mostRecentTv.value().tv_sec > static_cast<int>(rolloverDiffSeconds)) {
if (file_size(mostRecentFile.value()) + reader.getFullPacketLen() > fileBuf.size()) {
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uint8_t appendedCounter = 1;
path rolloverName;
while (true) {
rolloverName = path(mostRecentFile.value().string() + std::to_string(appendedCounter));
if (not exists(rolloverName)) {
break;
}
appendedCounter++;
}
rename(mostRecentFile.value(), rolloverName);
std::ofstream of(mostRecentFile.value(), std::ios::binary);
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}
}
// Rollover conditions were handled, write to file now
std::ofstream of(mostRecentFile.value(), std::ios::app | std::ios::binary);
of.write(reinterpret_cast<const char*>(reader.getFullData()), reader.getFullPacketLen());
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return returnvalue::OK;
}
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MessageQueueId_t TmStore::getCommandQueue() { return MessageQueueIF::NO_QUEUE; }
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void TmStore::calcDiffSeconds(RolloverInterval intervalUnit, uint32_t intervalCount) {
if (intervalUnit == RolloverInterval::HOURLY) {
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rolloverDiffSeconds = 60 * 60 * intervalCount;
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} else if (intervalUnit == RolloverInterval::DAILY) {
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rolloverDiffSeconds = 60 * 60 * 24 * intervalCount;
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}
}
void TmStore::updateBaseDir() {
using namespace std::filesystem;
std::string currentPrefix = sdcMan.getCurrentMountPrefix();
baseDir = path(currentPrefix) / baseName;
if (not exists(baseDir)) {
create_directory(baseDir);
}
baseDirUninitialized = false;
}
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ReturnValue_t TmStore::updateCurrentTimestamp() { return Clock::getClock_timeval(&currentTv); }
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void TmStore::assignAndOrCreateMostRecentFile() {
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using namespace std::filesystem;
for (auto const& file : directory_iterator(baseDir)) {
if (file.is_directory()) {
continue;
}
auto pathStr = file.path().string();
Clock::TimeOfDay_t tod;
if (pathStr.find(baseName) == std::string::npos) {
continue;
}
unsigned int underscorePos = pathStr.find_last_of('_');
std::string stampStr = pathStr.substr(underscorePos + 1);
int count =
sscanf(stampStr.c_str(),
"%4" SCNu32 "-%2" SCNu32 "-%2" SCNu32 "T%2" SCNu32 ":%2" SCNu32 ":%2" SCNu32 "Z",
&tod.year, &tod.month, &tod.day, &tod.hour, &tod.minute, &tod.second);
if (count != 6) {
continue;
}
timeval tv{};
Clock::convertTimeOfDayToTimeval(&tod, &tv);
if (not mostRecentTv || tv > mostRecentTv.value()) {
mostRecentTv = tv;
mostRecentFile = file.path();
}
}
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if (not mostRecentFile) {
updateCurrentTimestamp();
unsigned currentIdx = 0;
memcpy(fileBuf.data() + currentIdx, baseName.data(), baseName.size());
currentIdx += baseName.size();
Clock::TimeOfDay_t tod;
Clock::convertTimevalToTimeOfDay(&currentTv, &tod);
currentIdx += sprintf(reinterpret_cast<char*>(fileBuf.data() + currentIdx),
"%4" SCNu32 "-%2" SCNu32 "-%2" SCNu32 "T%2" SCNu32 ":%2" SCNu32
":%2" SCNu32 "Z.bin",
tod.year, tod.month, tod.day, tod.hour, tod.minute, tod.second);
path newPath(std::string(reinterpret_cast<const char*>(fileBuf.data()), currentIdx));
std::ofstream of(newPath, std::ios::binary);
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mostRecentFile = newPath;
mostRecentTv = currentTv;
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}
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}
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ReturnValue_t TmStore::storePacketInternal(PusTmReader& reader) { return returnvalue::OK; }