void rtinit0() {
int i, j;
struct distance_table *thisnode0;
thisnode0 = &dt0;
// set the temporary packet mincosts to INFINITY
somePacket.mincost[0] = INFINITY;
somePacket.mincost[1] = INFINITY;
somePacket.mincost[2] = INFINITY;
somePacket.mincost[3] = INFINITY;
printf("At time t = %f, rtinit0() called\n", clocktime);
// set links from node i to node j as INFINITY
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
thisnode0->costs[i][j]= INFINITY;
}
}
neighbor0 = getNeighborCosts(0);
// link weight from node 0
thisnode0->costs[0][0] = neighbor0->NodeCosts[0];
thisnode0->costs[1][1] = neighbor0->NodeCosts[1];
thisnode0->costs[2][2] = neighbor0->NodeCosts[2];
thisnode0->costs[3][3] = neighbor0->NodeCosts[3];
// check each distance from node i to node j in comparison to our somePacket
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
if (somePacket.mincost[i] > thisnode0->costs[i][j]) {
somePacket.mincost[i] = thisnode0->costs[i][j];
}
}
}
// set somePacket's sourceID to 0 (we're in node0)
// use tolayer2 to send to another node, depending on the destID
somePacket.sourceid = 0;
somePacket.destid = 1;
toLayer2(somePacket);
printf("At time t = %f, node 0 sends packet to node 1 with: %d %d %d %d\n", clocktime, somePacket.mincost[0], somePacket.mincost[1], somePacket.mincost[2], somePacket.mincost[3]);
somePacket.destid = 2;
toLayer2(somePacket);
printf("At time t = %f, node 0 sends packet to node 2 with: %d %d %d %d\n", clocktime, somePacket.mincost[0], somePacket.mincost[1], somePacket.mincost[2], somePacket.mincost[3]);
somePacket.destid = 3;
toLayer2(somePacket);
printf("At time t = %f, node 0 sends packet to node 3 with: %d %d %d %d\n", clocktime, somePacket.mincost[0], somePacket.mincost[1], somePacket.mincost[2], somePacket.mincost[3]);
printdt0(0, neighbor0, thisnode0);
printf("We are done with rtinit0 routine\n");
}
void rtupdate0( struct RoutePacket *rcvdpkt ) {
int i, j, rcvdSource, update = 0;
struct distance_table *thisnode0;
thisnode0 = &dt0;
for (i = 0; i < 4; i++) {
somePacket.mincost[i] = INFINITY;
}
printf("Now we are in rtupdate0()\n");
// check what sourceID of received packet is
rcvdSource = rcvdpkt->sourceid;
printf("Received packet's source ID is %d\n", rcvdSource);
for (i = 0; i < 4; i++) {
// go through and see if we need to update distance-table with new mincost
if (thisnode0->costs[i][rcvdSource] > (thisnode0->costs[rcvdSource][rcvdSource] + rcvdpkt->mincost[i])) {
thisnode0->costs[i][rcvdSource] = (thisnode0->costs[rcvdSource][rcvdSource] + rcvdpkt->mincost[i]);
update = 1;
}
}
// for this case, we update distance table
if (update == 1) {
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
if (somePacket.mincost[i] > thisnode0->costs[i][j]) {
somePacket.mincost[i] = thisnode0->costs[i][j];
}
}
}
printf("We updated distance table from rtupdate0()\n");
// set somePacket's sourceID to 0 (we're in node0)
// use tolayer2 to send to another node, depending on the destID
somePacket.sourceid = 0;
somePacket.destid = 1;
toLayer2(somePacket);
printf("At time t = %f, node 0 sends packet to node 1 with: %d %d %d %d\n", clocktime, somePacket.mincost[0], somePacket.mincost[1], somePacket.mincost[2], somePacket.mincost[3]);
somePacket.destid = 2;
toLayer2(somePacket);
printf("At time t = %f, node 0 sends packet to node 2 with: %d %d %d %d\n", clocktime, somePacket.mincost[0], somePacket.mincost[1], somePacket.mincost[2], somePacket.mincost[3]);
somePacket.destid = 3;
toLayer2(somePacket);
printf("At time t = %f, node 0 sends packet to node 3 with: %d %d %d %d\n", clocktime, somePacket.mincost[0], somePacket.mincost[1], somePacket.mincost[2], somePacket.mincost[3]);
}
printdt0(0, neighbor0, thisnode0);
printf("We are done with rtupdate0()\n");
}
void rtinit0()
{
int custos[4] = {0,1,3,7}; //vetor com os meus custos para os nós 0,1,2 e 3 respectivamente
int i,j;
for(i=0; i<4; i++)
{
envio.sourceid = NODE_ID; // todos sairão com o sourceid = 0
envio.destid = i+1; // como eu começo apartir de '0' e não vou mandar para mim mesmo eu incrementei '+1'
for(j=0; j<4; j++)
{
envio.mincost[j] = custos[j]; // preenchendo os custos dos pacotes a enviar
if(i==j)
dt0.costs[i][j] = custos[i]; // se os indices da matriz forem iguais, então atualizo meus custos buscando no vetor de custos
else
dt0.costs[i][j] = INFINITO; // senão eu coloco o valor correspondente ao INFINITO
}
if(i+1!=4)
tolayer2(envio);
}
printdt0(&dt0);
}
