Hi, I am a student at Catania University.
I would like to implement in
TinyOS 2 a mechanism of random routing.
I thought to change the
behavior of the application TestNetwork, through the modification of
the file CtpRoutingEngineP, relatively to
task void updateRouteTask ()
but when I execute the application TestNetwork, I realized that the
RoutingTable does not contain exact values. Infact through this code:
…….
task void updateRouteTask() {
uint8_t i;
routing_table_entry* entry;
routing_table_entry* best;
uint16_t minEtx;
uint16_t currentEtx;
uint16_t linkEtx,
pathEtx;
if (state_is_root)
return;
best = NULL;
/* Minimum etx found among neighbors, initially
infinity */
minEtx = MAX_METRIC;
/* Metric through
current parent, initially infinity */
currentEtx = MAX_METRIC;
//dbg("TreeRouting","%s\n",__FUNCTION__);
for (i = 0; i < 10; i++) {
entry =
&routingTable[i];
dbg("TreeRouting", "routingTable[%d]: neighbor: [id:
%d parent: %d]\n",i, entry->neighbor, entry->info.parent);
}
……..
I noted that all elements of the routingTable are equal
to 0.
This is the output
$ python test.py >>output.txt
….
Booting 0 at time 66239565822
Booting 1 at time 65903208580
Booting 2 at time 74918631651
Booting 3 at time 62765650646
Starting simulation.
DEBUG (3): clientPtrs[0] = 0x84e9d8
DEBUG (3):
TestNetworkC: Timer fired.
DEBUG (3): CtpForwardingEngineP$0$Send$send:
sending packet from client 0: 69255e, len 15
DEBUG (3):
CtpForwardingEngineP$0$Send$send: queue entry for 0 is 0 deep
DEBUG
(3): QueueC$0$Queue$enqueue: size is 0
DEBUG (3): head <-[d8e98400] <-
tail
DEBUG (3): TestNetworkC$sendMessage: Transmission succeeded.
DEBUG
(3): CtpForwardingEngineP$0$sendTask$runTask: Trying to send a packet.
Queue size is 1.
DEBUG (3): CtpForwardingEngineP$0$sendTask$runTask: no
route, don't send, start retry timer
DEBUG (3): QueueC$2$Queue$enqueue:
size is 0
DEBUG (3): head <-[4cb07300] <- tail
DEBUG (3):
QueueC$2$Queue$dequeue: size is 1
DEBUG (3): head <-<- tail
DEBUG (1):
clientPtrs[0] = 0x84e9c8
DEBUG (0): clientPtrs[0] = 0x84e9c0
DEBUG (0):
CtpRoutingEngineP$0$RootControl$setRoot I'm a root now!
DEBUG (0):
QueueC$2$Queue$enqueue: size is 0
DEBUG (0): head <-[60ab7300] <- tail
DEBUG (0): CtpForwardingEngineP$0$sendTask$runTask: Trying to send a
packet. Queue size is 0.
DEBUG (0):
CtpForwardingEngineP$0$sendTask$runTask: queue empty, don't send
DEBUG
(0): QueueC$2$Queue$enqueue: size is 1
DEBUG (0): head <-[60ab7300]
[8aab7300] <- tail
DEBUG (0): QueueC$2$Queue$dequeue: size is 2
DEBUG
(0): head <-[8aab7300] <- tail
DEBUG (0): QueueC$2$Queue$dequeue: size
is 1
DEBUG (0): head <-<- tail
DEBUG (0): TestNetworkC: Timer fired.
DEBUG (0): CtpForwardingEngineP$0$Send$send: sending packet from client
0: 6924e0, len 15
DEBUG (0): CtpForwardingEngineP$0$Send$send: queue
entry for 0 is 0 deep
DEBUG (0): QueueC$0$Queue$enqueue: size is 0
DEBUG (0): head <-[c0e98400] <- tail
DEBUG (0):
TestNetworkC$sendMessage: Transmission succeeded.
DEBUG (0):
CtpForwardingEngineP$0$sendTask$runTask: Trying to send a packet. Queue
size is 1.
DEBUG (0): Sending queue entry 0x84e9c0
DEBUG (0):
CtpForwardingEngineP$0$sendTask$runTask: I'm a root, so loopback and
signal receive.
DEBUG (0): Received packet at 0:0:6.664972237 from node
0.
DEBUG (0): QueueC$1$Queue$enqueue: size is 0
DEBUG (0): head <-
[50077300] <- tail
DEBUG (0): CtpForwardingEngineP$0$SubSend$sendDone
to 0 and 0
DEBUG (0): CtpForwardingEngineP$0$SubSend$sendDone: our
packet for client 0, remove 0x84e9c0 from queue
DEBUG (0):
QueueC$2$Queue$enqueue: size is 0
DEBUG (0): head <-[b4ab7300] <- tail
DEBUG (0): QueueC$0$Queue$dequeue: size is 1
DEBUG (0): head <-<- tail
DEBUG (0): Send completed.
DEBUG (0): Rexmit timer will fire in 24 ms
DEBUG (0): Sending packet to UART.
DEBUG (0): QueueC$1$Queue$dequeue:
size is 1
DEBUG (0): head <-<- tail
DEBUG (0): Sending packet to UART.
DEBUG (0): QueueC$2$Queue$enqueue: size is 1
DEBUG (0): head <-
[b4ab7300] [deab7300] <- tail
DEBUG (0): QueueC$2$Queue$dequeue: size
is 2
DEBUG (0): head <-[deab7300] <- tail
DEBUG (0):
QueueC$2$Queue$dequeue: size is 1
DEBUG (0): head <-<- tail
DEBUG (0):
Sono prima di if
DEBUG (0): CtpRoutingEngineP$0$sendBeaconTask$runTask
parent: 0 etx: 0
DEBUG (0): QueueC$2$Queue$enqueue: size is 0
DEBUG
(0): head <-[08ac7300] <- tail
DEBUG (0): AM: Sending packet (id=24,
len=7) to 65535
DEBUG (0): QueueC$2$Queue$dequeue: size is 1
DEBUG (0):
head <-<- tail
DEBUG (1): TestNetworkC: Timer fired.
DEBUG (1):
CtpForwardingEngineP$0$Send$send: sending packet from client 0: 69250a,
len 15
DEBUG (1): CtpForwardingEngineP$0$Send$send: queue entry for 0
is 0 deep
DEBUG (1): QueueC$0$Queue$enqueue: size is 0
DEBUG (1): head
<-[c8e98400] <- tail
DEBUG (1): TestNetworkC$sendMessage: Transmission
succeeded.
DEBUG (1): CtpForwardingEngineP$0$sendTask$runTask: Trying
to send a packet. Queue size is 1.
DEBUG (1):
CtpForwardingEngineP$0$sendTask$runTask: no route, don't send, start
retry timer
DEBUG (1): QueueC$2$Queue$enqueue: size is 0
DEBUG (1):
head <-[04ad7300] <- tail
DEBUG (1): QueueC$2$Queue$dequeue: size is 1
DEBUG (1): head <-<- tail
DEBUG (0):
CtpForwardingEngineP$0$sendTask$runTask: Trying to send a packet. Queue
size is 0.
DEBUG (0): CtpForwardingEngineP$0$sendTask$runTask: queue
empty, don't send
DEBUG (0): QueueC$2$Queue$enqueue: size is 0
DEBUG
(0): head <-[32ac7300] <- tail
DEBUG (0): QueueC$2$Queue$dequeue: size
is 1
DEBUG (0): head <-<- tail
DEBUG (3): Sono prima di if
DEBUG (3):
Sono dopo di if
DEBUG (3): routingTable[0]: neighbor: [id: 0 parent: 0]
DEBUG (3): routingTable[1]: neighbor: [id: 0 parent: 0]
DEBUG (3):
routingTable[2]: neighbor: [id: 0 parent: 0]
DEBUG (3): routingTable
[3]: neighbor: [id: 0 parent: 0]
DEBUG (3): routingTable[4]: neighbor:
[id: 0 parent: 0]
DEBUG (3): routingTable[5]: neighbor: [id: 0 parent:
0]
DEBUG (3): routingTable[6]: neighbor: [id: 0 parent: 0]
DEBUG (3):
routingTable[7]: neighbor: [id: 0 parent: 0]
DEBUG (3): routingTable
[8]: neighbor: [id: 0 parent: 0]
DEBUG (3): routingTable[9]: neighbor:
[id: 0 parent: 0]
DEBUG (3): Sono dopo il for inventato
DEBUG (3):
CtpRoutingEngineP$0$sendBeaconTask$runTask parent: 65535 etx: 0
DEBUG
(3): QueueC$2$Queue$enqueue: size is 0
DEBUG (3): head <-[76b07300] <-
tail
DEBUG (3): AM: Sending packet (id=24, len=7) to 65535
DEBUG (3):
QueueC$2$Queue$dequeue: size is 1
DEBUG (3): head <-<- tail
…………….
Why?
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