Function encode

src/log/leveldb.cpp:88–104

Returns a string representing the specified position. Note that we adjust the actual position by incrementing it by 1 because we reserve 0 for storing the promise record (Record::Promise, DEPRECATED!), or the metadata (Record::Metadata).

// reserve 0 for storing the promise record (Record::Promise,
// DEPRECATED!), or the metadata (Record::Metadata).
static string encode(uint64_t position, bool adjust = true)
{
  // Adjusted stringified represenation is plus 1 of actual position.
  position = adjust ? position + 1 : position;

  // TODO(benh): Use varint encoding for VarInt64Comparator!
  // string s;
  // google::protobuf::io::StringOutputStream _stream(&s);
  // google::protobuf::io::CodedOutputStream stream(&_stream);
  // position = adjust ? position + 1 : position;
  // stream.WriteVarint64(position);
  // return s;

  Try<string> s = strings::format("%.*d", 10, position);
  CHECK_SOME(s);
  return s.get();
}


// Returns the position as represented in the specified slice