std::vector<Register*> SPSegment::toRegisterVector(const char* data) {
Schema::Relation relation = this->relation();
unsigned nextVarLength = 0;
unsigned offset = 0;
vector<Register*> result = vector<Register*>();
for (auto attr = relation.attributes.begin(); attr != relation.attributes.end(); attr++) {
switch ((*attr).type) {
case Types::Tag::Integer:
nextVarLength += sizeof(int);
break;
case Types::Tag::Char:
nextVarLength += sizeof(unsigned);
break;
}
}
for (auto attr = relation.attributes.begin(); attr != relation.attributes.end(); attr++) {
Register* reg = new Register();
switch ((*attr).type) {
case Types::Tag::Integer:
reg->setInteger(*(reinterpret_cast<const int*>(data + offset)));
offset += sizeof(int);
break;
case Types::Tag::Char:
const char* str = data + nextVarLength;
const unsigned endOffset = *(reinterpret_cast<const unsigned*>(data + offset));
reg->setString(string(str, offset + endOffset - nextVarLength));
offset += sizeof(unsigned);
break;
}
result.push_back(reg);
}
return result;
}
