int LeafNode::deserialize(const char* buffer) {
level = LEVEL_MASK & buffer[0];
numElements = buffer[1];
elements.resize(numElements);
int bytes = 2;
for (unsigned i = 0; i < numElements; ++i) {
Record* aux = new Record();
bytes += aux->deserialize(buffer + bytes);
elements[i] = aux;
}
occupiedSpace = bytes;
return bytes;
}
bool TimeLogger::deserialize(string file_name, Record& record)
{
fstream logfile;
logfile.open(file_name.c_str(), ios_base::binary | ios_base::in);
if (!logfile.is_open()) {
cerr << "Could not open and deserialize file '" << file_name << "'!" << endl;
return false;
}
logfile.seekp(0, ios_base::end);
size_t file_size = logfile.tellp();
logfile.seekp(0, ios_base::beg);
if (!file_size) {
cerr << "Cuold not deserialize empty file!" << endl;
return false;
}
// Header
unsigned int magic_sig;
logfile.read((char*)&magic_sig, sizeof(MAGIC_SIG));
if (magic_sig != MAGIC_SIG) {
cerr << "This file is not in the TimeLogger format!" << endl;
return false;
}
unsigned int version;
logfile.read((char*)&version, sizeof(VERSION));
if (version != VERSION) {
cerr << "Version missmatch!" << endl;
return false;
}
record.deserialize(logfile);
return true;
}