void dir(){
// send command //
allzero(buffer, 1);
send_pack(DIRL, buffer, sock);
/* send port number for data connection to server */
send_data_port();
// make socket and accept server's Data Connection (active)//
makeDataConnection();
fprintf(stderr, "get() : data connection accepted\n");
// recieve file list //
receive_file_list();
fprintf(stdout, "get() : complete file received\n");
// close the data connection //
close(request->serverSocket);
}
//-----------------------------------------------------------------------------
void *connection(void *user) {
//struct timeval curTime;
struct User *_user = (struct User *)user;
int e;
int rc = 1;
int sockfd = _user->sockfd;
pthread_detach(pthread_self()); //automatically clears the threads memory on exit
fd_set rdset, wrset;
int s = -1;
int max_fd = sockfd + 1;
struct timeval selectTimeout;
selectTimeout.tv_sec = TIMEOUT / 1000;
selectTimeout.tv_usec = (TIMEOUT % 1000) * 1000;
FD_ZERO(&rdset);
FD_ZERO(&wrset);
char *buf = calloc(100,1);
for (;;) {
// start monitoring for reads or timeout
if (s <= 0) {
FD_SET(sockfd, &rdset);
}
s = select(max_fd, &rdset, &wrset, NULL, &selectTimeout);
if (s == -1) { printf("ERROR: Socket error. Exiting.\n"); exit(1); }
/*
* Here we handle all of the incoming text from a particular client.
*/
if(s > 0) {
bzero(buf,100);
rc = recv(sockfd,buf,99,0);
if (rc > 0)
{
char *cmd = malloc(24);
cmd = strtok(buf," ");
// which command are we processing?
if (strcmp(cmd,GET_CMD) == 0) {
char *filename = calloc(FILENAME_LEN,1);
filename = strtok(NULL,"\0");
send_file_info(sockfd, filename);
}
else if (strcmp(cmd,LIST_CMD) == 0) {
send_file_list(sockfd);
}
else if (strcmp(cmd,USERS_CMD) == 0) {
send_user_list(sockfd);
}
else if (strcmp(cmd,SEND_LIST_CMD) == 0) {
receive_file_list(sockfd,_user);
}
else if (strcmp(cmd,EXIT_CMD) == 0) {
//if I received an 'exit' message from this client
pthread_mutex_lock(&mutex);
remove_user(_user);
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
printf("Shouldn't see this!\n");
//loop through global client list and
//e =write(..);
if (e == -1) //broken pipe.. someone has left the room
{
pthread_mutex_lock(&mutex);
//so remove them from our list
pthread_mutex_unlock(&mutex);
}
}
else {
printf("Unknown command received: %s\n",cmd);
}
fflush(stdout);
}
}
}
//A requirement for 5273 students:
//if I received a new files list from this client, the
//server must “Push”/send the new updated hash table to all clients it is connected to.
//should probably never get here
return 0;
}
