QDataStream &operator>>(QDataStream &in, BufferInfo &bufferInfo);
QDebug operator<<(QDebug dbg, const BufferInfo &b);
-Q_DECLARE_METATYPE(BufferInfo);
+Q_DECLARE_METATYPE(BufferInfo)
Q_DECLARE_OPERATORS_FOR_FLAGS(BufferInfo::ActivityLevel)
uint qHash(const BufferInfo &);