Function PackTimestampAndType

src/io/coding.h:80–86

enum UserKeyType { UKT_VALUE = 0, UKT_FORSEEK };

inline uint64_t PackTimestampAndType(int64_t timestamp, UserKeyType key_type) {
  uint64_t stamp = 0;
  if (timestamp >= 0) {
    stamp = static_cast<uint64_t>(timestamp);
  }
  return (stamp << sizeof(UserKeyType)) | key_type;
}

bool ParseKeySlice(const leveldb::Slice& key, int64_t* timestamp, UserKeyType* type,
                   leveldb::Slice* short_key, leveldb::Slice* time_key);