void topology_analysis()
{
char host1[20], host2[20];
int cost, host1ID, host2ID;
in_addr_t host1IP, host2IP;
int node[20], nbr[20];
in_addr_t nip[20];
int myNodeID = topology_getMyNodeID();
FILE *pFile = fopen("../topology/topology.dat", "r");
if(pFile == NULL)
perror("Error opening topology");
while(fscanf(pFile,"%s %s %d", host1, host2, &cost) > 0){
host1ID = topology_getNodeIDfromname(host1);
host1IP = topology_getNodeIPfromname(host1);
host2ID = topology_getNodeIDfromname(host2);
host2IP = topology_getNodeIPfromname(host2);
if(host1ID == myNodeID){
nbr[nbrNum] = host2ID;
nip[nbrNum] = host2IP;
nbrNum++;
if(host2ID < myNodeID)
lessNbr++;
}
else if(host2ID == myNodeID){
nbr[nbrNum] = host1ID;
nip[nbrNum] = host1IP;
nbrNum++;
if(host1ID < myNodeID)
lessNbr++;
}
if(searchInArray(node, host1ID, nodeNum) == -1){
node[nodeNum] = host1ID;
nodeNum++;
}
if(searchInArray(node, host2ID, nodeNum) == -1){
node[nodeNum] = host2ID;
nodeNum++;
}
}
int i = 0;
nbrIDArray = (int *)malloc(nbrNum * sizeof (int));
for(i = 0; i < nbrNum; i++)
nbrIDArray[i] = nbr[i];
nbrIPArray = (in_addr_t *)malloc(nbrNum * sizeof (in_addr_t));
for(i = 0; i < nbrNum; i++)
nbrIPArray[i] = nip[i];
nodeArray = (int *)malloc(nodeNum * sizeof (int));
for(i = 0; i < nodeNum; i++)
nodeArray[i] = node[i];
fclose(pFile);
}
//read topology.dat
void getTopoData()
{
FILE *pFile;
pFile = fopen("../topology/topology.dat","r");
if(pFile == NULL)
{
printf("open file error\n");
exit(-1);
}
char buf[128];
int lineCount=0;
while (fgets(buf,sizeof(buf),pFile)!= NULL) {
lineCount++;
}
if(lineCount<=0)
{
printf("no topology in file\n");
exit(-1);
}
//init topo data list
allIdList=malloc(lineCount*2*sizeof(int));
nbIdList=malloc(lineCount*sizeof(int));
nbIpList=malloc(lineCount*sizeof(in_addr_t));
costList=malloc(lineCount*sizeof(int));
//get data from file
char host1[32],host2[32];
int cost;
int myId=topology_getMyNodeID();
nbCount=0;
fseek(pFile,0,SEEK_SET);
while(fscanf(pFile,"%s %s %d", host1, host2, &cost) > 0)
{
int id1=topology_getNodeIDfromname(host1);
int id2=topology_getNodeIDfromname(host2);
int i=0;
for(;i<allCount;i++)
{
if(allIdList[i]==id1)break;
}
if(i==allCount)allIdList[allCount++]=id1;
i=0;
for(;i<allCount;i++)
{
if(allIdList[i]==id2)break;
}
if(i==allCount)allIdList[allCount++]=id2;
//neighbor
if(id1==myId)
{
nbIdList[nbCount]=id2;
nbIpList[nbCount]=topology_getNodeIPfromname(host2);
costList[nbCount]=cost;
if(id2>id1)bigCount++;
else if(id1>id2)smallCount++;
nbCount++;
}
else if(id2==myId)
{
nbIdList[nbCount]=id1;
nbIpList[nbCount]=topology_getNodeIPfromname(host1);
costList[nbCount]=cost;
if(id2>id1)smallCount++;
else if(id1>id2)bigCount++;
nbCount++;
}
}
}
