void peerThread(void * arg){
Info *info = (Info*) arg;
int newsockfd = info->sock;
char port[256];
int x = savefiles(newsockfd, inet_ntoa(((struct sockaddr_in)info->addr).sin_addr), port);
if(x == -1){ printf("error\n"); return; }
char buffer[256];
int n;
while(1){
n = dorecv(newsockfd, buffer, 256, 256);
if(n == -2) {
removepeer(inet_ntoa(((struct sockaddr_in)info->addr).sin_addr), port);
printf("Peer Connection Terminated\n");
return;
}
if(n == -1){ perror("can't receive from client"); continue;}
printf("SERVER GOT MESSAGE: %s n: %d\n", buffer, n);
if(strcmp(buffer,"list") == 0){
sendlist(newsockfd);
}else if(strncmp(buffer,"download ", 9) == 0){
//peer downloaded a file so update the list
printf("removing files\n");
removepeer(inet_ntoa(((struct sockaddr_in)info->addr).sin_addr), port);
printf("done removing files\n");
printf("saving files\n");
int x = savefiles(newsockfd, inet_ntoa(((struct sockaddr_in)info->addr).sin_addr), port);
if(x == -1){ printf("error\n"); return; }
printf("done saving files\n");
}else if(strcmp(buffer,"exit") == 0){
removepeer(inet_ntoa(((struct sockaddr_in)info->addr).sin_addr), port);
printf("connection terminated\n");
break;
}else{
sprintf(buffer, "unrecognized command %s", buffer);
}
}//end while
}
void
unregister_hash(char *buf, struct sockaddr_in *from_addr)
{
tracker_unregister_t *req = (tracker_unregister_t *)buf;
peer_t peer;
int index;
int i, j;
#ifdef DEBUG
fprintf(stderr, "unregister_hash:enter\n");
fprintf(stderr, "unregister_hash:hash_table:before\n\n");
print_hash_table();
#endif
bzero(&peer, sizeof(peer));
for (i = 0 ; i < req->numhashes ; ++i) {
tracker_info_t *info = &req->info[i];
if (getpeers(info->hash, &index) != NULL) {
for (j = 0 ; j < info->numpeers ; ++j) {
peer.ip = info->peers[j].ip;
removepeer(index, &peer, 1);
}
}
}
#ifdef DEBUG
fprintf(stderr, "unregister_hash:hash_table:after\n\n");
print_hash_table();
#endif
}
void
unregister_all(char *buf, struct sockaddr_in *from_addr)
{
peer_t peer;
int i;
#ifdef DEBUG
fprintf(stderr, "unregister_all:enter\n");
fprintf(stderr, "unregister_all:hash_table:before\n\n");
print_hash_table();
#endif
peer.ip = from_addr->sin_addr.s_addr;
if (hash_table->head >= hash_table->tail) {
for (i = hash_table->head - 1;
(i > hash_table->tail) && (i >= 0) ; --i) {
removepeer(i, &peer, 0);
}
} else {
for (i = hash_table->head - 1; i >= 0 ; --i) {
removepeer(i, &peer, 0);
}
for (i = (hash_table->size - 1) ;
(i > hash_table->tail) && (i >= 0) ; --i) {
removepeer(i, &peer, 0);
}
}
compact_hash_table();
reclaim_free_entries();
clear_dt_table_entry(peer.ip);
#ifdef DEBUG
fprintf(stderr, "unregister_all:hash_table:after\n\n");
print_hash_table();
#endif
}
//removes a query
bool SGraph::removequery(int query){
return removepeer(query);
}
