bm::EventLogger Class Reference

Public Member Functions
void	packet_in (const Packet &packet)
	Signal that a packet was received by the switch. More...
void	packet_out (const Packet &packet)
	Signal that a packet was transmitted by the switch. More...

Detailed Description

Signals significant packet event by publishing a message on a transport. This is meant to be used with the nanomsg PUB/SUB transport. Other processes can subscribe to the channel to monitor the activity of the switch (e.g. for logging). So far, we are mostly using this for the end-to-end testing of target switch implementations. Note that depending on the transport, some messages can be lost (the nanomsg PUB/SUB transport does not guarantee delivery to all subscribers, and message drops will happen if a subscriber is slower than the producer).

Most messages are generated by the bmv2 code, but the target is for now responsible of generated "packet in" and "packet out" messages (when a packet is received / transmitted). Obviously, this is optional and you do not have to do it if you are not interested in using the event logger.

Member Function Documentation

packet_in()

void bm::EventLogger::packet_in

(

const Packet &

packet

)

Signal that a packet was received by the switch.

packet_out()

void bm::EventLogger::packet_out

(

const Packet &

packet

)

Signal that a packet was transmitted by the switch.

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The documentation for this class was generated from the following file:

• include/bm/bm_sim/event_logger.h