Having said all that, description of your way of acknowledging packets seems very similar to what PacketAcknowledgements offers, so personally I would avoid writing extra code for handling acknowledgements myself and stick with the tools provided. When receiver component handles the packet on the other end it reads the flag and sends and ack if requested. The high level idea is following - calling PacketAcknowledgements.requestAck(&myMsg) sets a flag in a packet header and tells sender component not to signal sendDone event until ack was received (or timed out). While it is effective, the tester finds it tedious to perform extended functions. A tester has been using the attack script to execute arbitrary commands on a Windows NT4 web server. If you do not use a delay, you might deplete the buffers. Number of microseconds to pause between sending packets. spray -c count-d interval-l packetsize hostname. All you need to do is wire PacketAcknowledgements interface that your component/module uses to one of the providers (AMSenderC or ActiveMessageC). ECCouncil 312-49 Computer Hacking Forensic Investigator Exam Set 8. Test the reliability of your packet sizes with the spray command. If you used PacketAcknowledgements.requestAck(&myMsg) to request acknowledgement, then you don't have to write extra code in Receive.receive event handler to process acks as this is done for you by underlying communication layer. The packet or it should have PacketAcknowledgements interface in its This means that any component that operates with active messages has a built in support for synchronous acknowledgements.Īctually my doubt is, the receiving mote should have to acknowledge In TinyOS acknowledgements are implemented on the lowest communication abstraction level - active message.
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