gistfile1.cpp

        bool Deserialize(int fd) {

            int flag;
            int length;
            ReadN(fd, (char*) &flag, sizeof(flag));
            contains_value_ = flag;

            ReadN(fd, (char*) &length, sizeof(length));
            ReadN(fd, (char*) buf, length);
            key_ = std::string(buf);

            ReadN(fd, (char*) &length, sizeof(length));
            ReadN(fd, (char*) buf, length);
            value_ = std::string(buf);


            /*
            if (ReadN(fd, (char*) &contains_value_, sizeof(contains_value_)) <= 0)
                return false;
            if (!ReadString(fd, &key_))
                return false;
            if (contains_value_ && !ReadString(fd, &value_))
                return false;
            */
            return true;
        }