NetworkItem *networkItem(NetworkId networkId);
NetworkItem *existsNetworkItem(NetworkId networkId);
BufferItem *bufferItem(const BufferInfo &bufferInfo);
BufferItem *existsBufferItem(const BufferInfo &bufferInfo);
};
NetworkItem *networkItem(NetworkId networkId);
NetworkItem *existsNetworkItem(NetworkId networkId);
BufferItem *bufferItem(const BufferInfo &bufferInfo);
BufferItem *existsBufferItem(const BufferInfo &bufferInfo);
};