[Gems-users] how get the message's source NodeID or source InterfaceID

["Íõ×ô" <qiushui@xxxxxxxxxx>]

In the Priceton network simulater garnet-fixed-pipeline/NetworkInterface_d.c file,
we see that:
 when inNetLink->isReady() we pick a flit for this NI and caculate the queue
latency and network latency. I can easily get the message's destination
InterfaceID from the private data member m_id, but how can I get the flit's source
InterfaceID?