void recv_departure(){
sleep(2);
printf("recv_departure\n");
char tmp[200];
char packet[MAX_PACKET_LEN];
int len;
int i=0;
int j=0;
struct sockaddr_in addr;
size_t addrlen;
memset(tmp,0,sizeof(tmp));
while(1){
if( (len=recvfrom(sockfd, packet, MAX_PACKET_LEN, 0, (struct sockaddr *)&addr, &addrlen))<0 ){
perror("recv---recvfrom.");
printf("errno:%d\n",errno);
}
else{
strcpy(tmp, inet_ntoa(addr.sin_addr));
if(strcmp(HOSTIP,tmp)!=0){//filter out the broadcast packets from itself.
int ID=0;
int tmplen = strlen(tmp);
for(i=tmplen-1,j=1; i>=0; i--){
if(tmp[i]=='.')
break;
else{
ID=ID+(tmp[i]-'0')*j;
}
j=j*10;
}
if(ID!=0){//recv an broadcast packets
printf("recv---recvfrom %s:len=%d msg=%x\n",tmp,len,packet[1]);
pthread_mutex_lock( &recv_mutex);
updateRouter(ID, packet+1,len-1,neighbourRR);
recvCounter[ID]++;
pthread_mutex_unlock( &recv_mutex);
}
}
}
}
}
void StandAloneUpdateRouting (DAL_RATE_MODE_ENUM rate_mode)
{
updateRouter (stdAloneRouting, sizeof(stdAloneRouting)/sizeof(uint16));
}