void wd_broadcast(wd_chat_t *chat, uint32_t n, wi_string_t *fmt, ...) {
wi_enumerator_t *enumerator;
wi_string_t *string;
wi_array_t *users;
wd_user_t *user;
va_list ap;
va_start(ap, fmt);
string = wi_string_init_with_format_and_arguments(wi_string_alloc(), fmt, ap);
va_end(ap);
users = wd_chat_users(chat);
wi_array_rdlock(users);
enumerator = wi_array_data_enumerator(users);
while((user = wi_enumerator_next_data(enumerator))) {
if(wd_user_state(user) == WD_USER_LOGGED_IN) {
wd_user_lock_socket(user);
wi_socket_write_format(wd_user_socket(user), 0.0, WI_STR("%u %@%c"), n, string, WD_MESSAGE_SEPARATOR);
wd_user_unlock_socket(user);
}
}
wi_array_unlock(users);
wi_release(string);
}
static void wd_trackers_register_thread(wi_runtime_instance_t *argument) {
wi_pool_t *pool;
wi_enumerator_t *enumerator;
wi_number_t *number = argument;
wd_tracker_t *tracker;
wi_boolean_t update;
pool = wi_pool_init(wi_pool_alloc());
update = wi_number_bool(number);
wi_array_rdlock(wd_trackers);
enumerator = wi_array_data_enumerator(wd_trackers);
while((tracker = wi_enumerator_next_data(enumerator))) {
wd_tracker_register(tracker);
if(update && tracker->active)
wd_tracker_update(tracker);
}
wi_array_unlock(wd_trackers);
if(update)
wi_timer_reschedule(wd_trackers_update_timer, WD_TRACKERS_UPDATE_INTERVAL);
wi_release(pool);
}
void wd_chat_reply_user_list(wd_chat_t *chat) {
wi_enumerator_t *enumerator;
wd_user_t *user;
wi_array_rdlock(chat->users);
enumerator = wi_array_data_enumerator(chat->users);
while((user = wi_enumerator_next_data(enumerator))) {
if(wd_user_state(user) == WD_USER_LOGGED_IN) {
wd_reply(310, WI_STR("%u%c%u%c%u%c%u%c%u%c%#@%c%#@%c%#@%c%#@%c%#@%c%#@"),
chat->cid, WD_FIELD_SEPARATOR,
wd_user_uid(user), WD_FIELD_SEPARATOR,
wd_user_is_idle(user), WD_FIELD_SEPARATOR,
wd_user_is_admin(user), WD_FIELD_SEPARATOR,
wd_user_icon(user), WD_FIELD_SEPARATOR,
wd_user_nick(user), WD_FIELD_SEPARATOR,
wd_user_login(user), WD_FIELD_SEPARATOR,
wd_user_ip(user), WD_FIELD_SEPARATOR,
wd_user_host(user), WD_FIELD_SEPARATOR,
wd_user_status(user), WD_FIELD_SEPARATOR,
wd_user_image(user));
}
}
wi_array_unlock(chat->users);
wd_reply(311, WI_STR("%u"), chat->cid);
}
static wi_timer_t * _wi_timer_first_timer(void) {
wi_timer_t *timer;
wi_array_rdlock(_wi_timers);
timer = wi_autorelease(wi_retain(wi_array_first_data(_wi_timers)));
wi_array_unlock(_wi_timers);
return timer;
}
wi_boolean_t wd_chat_contains_user(wd_chat_t *chat, wd_user_t *user) {
wi_boolean_t contains;
wi_array_rdlock(chat->users);
contains = wi_array_contains_data(chat->users, user);
wi_array_unlock(chat->users);
return contains;
}
static void wd_trackers_update(void) {
wi_enumerator_t *enumerator;
wd_tracker_t *tracker;
wi_array_rdlock(wd_trackers);
enumerator = wi_array_data_enumerator(wd_trackers);
while((tracker = wi_enumerator_next_data(enumerator))) {
if(tracker->active)
wd_tracker_update(tracker);
}
wi_array_unlock(wd_trackers);
}
wd_transfer_t * wd_transfers_transfer_with_path(wd_transfer_type_t type, wi_string_t *path) {
wd_transfer_t *transfer, *value = NULL;
wi_uinteger_t i, count;
wi_array_rdlock(wd_transfers);
count = wi_array_count(wd_transfers);
for(i = 0; i < count; i++) {
transfer = WI_ARRAY(wd_transfers, i);
if(transfer->type == type && wi_is_equal(transfer->path, path)) {
value = wi_autorelease(wi_retain(transfer));
break;
}
}
wi_array_unlock(wd_transfers);
return value;
}
wi_socket_t * wi_socket_wait_multiple(wi_array_t *array, wi_time_interval_t timeout) {
wi_enumerator_t *enumerator;
wi_socket_t *socket, *waiting_socket = NULL;
struct timeval tv;
fd_set rfds, wfds;
int state, max_sd;
tv = wi_dtotv(timeout);
max_sd = -1;
FD_ZERO(&rfds);
FD_ZERO(&wfds);
wi_array_rdlock(array);
enumerator = wi_array_data_enumerator(array);
while((socket = wi_enumerator_next_data(enumerator))) {
if(wi_string_length(socket->buffer) > 0) {
waiting_socket = socket;
break;
}
if(socket->direction & WI_SOCKET_READ)
FD_SET(socket->sd, &rfds);
if(socket->direction & WI_SOCKET_WRITE)
FD_SET(socket->sd, &wfds);
if(socket->sd > max_sd)
max_sd = socket->sd;
}
wi_array_unlock(array);
if(waiting_socket)
return waiting_socket;
state = select(max_sd + 1, &rfds, &wfds, NULL, (timeout > 0.0) ? &tv : NULL);
if(state < 0) {
wi_error_set_errno(errno);
return NULL;
}
wi_array_rdlock(array);
enumerator = wi_array_data_enumerator(array);
while((socket = wi_enumerator_next_data(enumerator))) {
if(FD_ISSET(socket->sd, &rfds) || FD_ISSET(socket->sd, &wfds)) {
waiting_socket = socket;
break;
}
}
wi_array_unlock(array);
return waiting_socket;
}
static void wd_transfers_update_queue(void) {
wi_mutable_set_t *users;
wi_mutable_array_t *sorted_users, *transfers_queue, *failed_transfers;
wd_transfer_t *transfer;
wd_user_t *user;
wi_uinteger_t position;
wi_uinteger_t i, count;
wi_uinteger_t total_downloads, total_uploads, user_downloads, user_uploads, active_downloads, active_uploads;
wi_boolean_t queue;
wi_array_rdlock(wd_transfers);
total_downloads = wd_settings.totaldownloads;
user_downloads = wd_settings.clientdownloads;
total_uploads = wd_settings.totaluploads;
user_uploads = wd_settings.clientuploads;
active_downloads = 0;
active_uploads = 0;
failed_transfers = wi_array_init(wi_mutable_array_alloc());
users = wi_set_init(wi_mutable_set_alloc());
count = wi_array_count(wd_transfers);
for(i = 0; i < count; i++) {
transfer = WI_ARRAY(wd_transfers, i);
if(wd_transfer_state(transfer) == WD_TRANSFER_QUEUED) {
wi_mutable_array_add_data(wd_user_transfers_queue(transfer->user), transfer);
wi_mutable_set_add_data(users, transfer->user);
}
wd_user_clear_downloads(transfer->user);
wd_user_clear_uploads(transfer->user);
}
for(i = 0; i < count; i++) {
transfer = WI_ARRAY(wd_transfers, i);
if(wd_transfer_state(transfer) == WD_TRANSFER_RUNNING) {
if(transfer->type == WD_TRANSFER_DOWNLOAD) {
active_downloads++;
wd_user_increase_downloads(transfer->user);
} else {
active_uploads++;
wd_user_increase_uploads(transfer->user);
}
}
}
count = wi_set_count(users);
if(count > 0) {
sorted_users = wi_autorelease(wi_mutable_copy(wi_set_all_data(users)));
wi_mutable_array_sort(sorted_users, wd_transfers_compare_user);
position = 1;
while(count > 0) {
for(i = 0; i < count; i++) {
user = WI_ARRAY(sorted_users, i);
transfers_queue = wd_user_transfers_queue(user);
transfer = WI_ARRAY(transfers_queue, 0);
if(transfer->type == WD_TRANSFER_DOWNLOAD) {
queue = ((total_downloads > 0 && active_downloads >= total_downloads) ||
(user_downloads > 0 && wd_user_downloads(transfer->user) >= user_downloads));
} else {
queue = ((total_uploads > 0 && active_uploads >= total_uploads) ||
(user_uploads > 0 && wd_user_uploads(transfer->user) >= user_uploads));
}
if(queue) {
if(transfer->queue != position) {
transfer->queue = position;
wd_user_lock_socket(transfer->user);
wd_sreply(wd_user_socket(transfer->user), 401, WI_STR("%#@%c%u"),
transfer->path, WD_FIELD_SEPARATOR,
transfer->queue);
wd_user_unlock_socket(transfer->user);
}
position++;
} else {
transfer->queue = 0;
transfer->waiting_time = wi_time_interval();
wd_transfer_set_state(transfer, WD_TRANSFER_WAITING);
if(wd_transfer_open(transfer)) {
wd_transfer_create_timer(transfer);
wd_user_lock_socket(transfer->user);
wd_sreply(wd_user_socket(transfer->user), 400, WI_STR("%#@%c%llu%c%#@"),
transfer->path, WD_FIELD_SEPARATOR,
transfer->offset, WD_FIELD_SEPARATOR,
transfer->hash);
wd_user_unlock_socket(transfer->user);
} else {
wd_user_lock_socket(transfer->user);
wd_sreply(wd_user_socket(transfer->user), 500, WI_STR("Command Failed"));
wd_user_unlock_socket(transfer->user);
wi_mutable_array_add_data(failed_transfers, transfer);
}
}
wi_mutable_array_remove_data_at_index(transfers_queue, 0);
if(wi_array_count(transfers_queue) == 0) {
wi_mutable_array_remove_data_at_index(sorted_users, i);
i--;
count--;
}
}
}
}
wi_mutable_array_remove_data_in_array(wd_transfers, failed_transfers);
wi_array_unlock(wd_transfers);
wi_release(users);
wi_release(failed_transfers);
}
static void wd_transfers_queue_thread(wi_runtime_instance_t *argument) {
wi_pool_t *pool;
wi_enumerator_t *enumerator;
wi_mutable_dictionary_t *key_queues;
wi_mutable_array_t *key_queue, *keys;
wi_string_t *key;
wd_transfer_t *transfer;
wd_account_t *account;
wi_uinteger_t user_downloads, user_uploads, user_transfers;
wi_uinteger_t new_position, position, queue, i, count, longest_queue;
pool = wi_pool_init(wi_pool_alloc());
key_queues = wi_dictionary_init(wi_mutable_dictionary_alloc());
while(true) {
wi_mutable_dictionary_remove_all_data(key_queues);
wi_condition_lock_lock_when_condition(wd_transfers_queue_lock, 1, 0.0);
wi_array_rdlock(wd_transfers);
longest_queue = 0;
enumerator = wi_array_data_enumerator(wd_transfers);
while((transfer = wi_enumerator_next_data(enumerator))) {
wi_condition_lock_lock(transfer->queue_lock);
if(transfer->state == WD_TRANSFER_QUEUED && transfer->queue != 0) {
key_queue = wi_dictionary_data_for_key(key_queues, transfer->key);
if(!key_queue) {
key_queue = wi_mutable_array();
wi_mutable_dictionary_set_data_for_key(key_queues, key_queue, transfer->key);
}
wi_mutable_array_add_data(key_queue, transfer);
if(wi_array_count(key_queue) > longest_queue)
longest_queue = wi_array_count(key_queue);
}
wi_condition_lock_unlock(transfer->queue_lock);
}
keys = wi_autorelease(wi_mutable_copy(wi_dictionary_keys_sorted_by_value(key_queues, wd_transfers_queue_compare)));
position = 1;
count = wi_array_count(keys);
while(longest_queue > 0) {
for(i = 0; i < count; i++) {
key = WI_ARRAY(keys, i);
key_queue = wi_dictionary_data_for_key(key_queues, key);
if(wi_array_count(key_queue) > 0) {
transfer = WI_ARRAY(key_queue, 0);
account = wd_user_account(transfer->user);
wi_lock_lock(wd_transfers_status_lock);
if(transfer->type == WD_TRANSFER_DOWNLOAD) {
wi_dictionary_rdlock(wd_transfers_user_downloads);
user_downloads = wd_account_transfer_download_limit(account);
user_transfers = (wi_integer_t) wi_dictionary_data_for_key(wd_transfers_user_downloads, transfer->key);
queue = ((wd_transfers_total_downloads > 0 && wd_transfers_active_downloads >= wd_transfers_total_downloads) ||
(user_downloads > 0 && user_transfers >= user_downloads));
wi_dictionary_unlock(wd_transfers_user_downloads);
} else {
wi_dictionary_rdlock(wd_transfers_user_uploads);
user_uploads = wd_account_transfer_upload_limit(account);
user_transfers = (wi_integer_t) wi_dictionary_data_for_key(wd_transfers_user_uploads, transfer->key);
queue = ((wd_transfers_total_uploads > 0 && wd_transfers_active_uploads >= wd_transfers_total_uploads) ||
(user_uploads > 0 && user_transfers >= user_uploads));
wi_dictionary_unlock(wd_transfers_user_uploads);
}
wi_lock_unlock(wd_transfers_status_lock);
if(queue)
new_position = position++;
else
new_position = 0;
if(new_position != (wi_uinteger_t) transfer->queue) {
if(new_position == 0)
wd_transfers_add_or_remove_transfer(transfer, true);
wi_condition_lock_lock(transfer->queue_lock);
transfer->queue = new_position;
wi_condition_lock_unlock_with_condition(transfer->queue_lock, 1);
}
wi_mutable_array_remove_data_at_index(key_queue, 0);
}
}
longest_queue--;
}
wi_array_unlock(wd_transfers);
wi_condition_lock_unlock_with_condition(wd_transfers_queue_lock, 0);
wi_pool_drain(pool);
}
wi_release(key_queues);
wi_release(pool);
}
void wd_server_init(void) {
wi_enumerator_t *enumerator;
wi_array_t *array, *addresses;
wi_address_t *address;
wi_socket_t *control_socket, *transfer_socket;
wi_string_t *ip, *string;
wi_address_family_t family;
wd_control_sockets = wi_array_init(wi_mutable_array_alloc());
wd_transfer_sockets = wi_array_init(wi_mutable_array_alloc());
addresses = wi_array_init(wi_mutable_array_alloc());
if(wi_array_count(wd_settings.address) > 0) {
/* listen on configured addresses */
wi_array_rdlock(wd_settings.address);
enumerator = wi_array_data_enumerator(wd_settings.address);
while((string = wi_enumerator_next_data(enumerator))) {
array = wi_host_addresses(wi_host_with_string(string));
if(array)
wi_mutable_array_add_data_from_array(addresses, array);
else
wi_log_err(WI_STR("Could not resolve \"%@\": %m"), string);
}
wi_array_unlock(wd_settings.address);
} else {
/* add wildcard addresses */
wi_mutable_array_add_data(addresses, wi_address_wildcard_for_family(WI_ADDRESS_IPV6));
wi_mutable_array_add_data(addresses, wi_address_wildcard_for_family(WI_ADDRESS_IPV4));
}
enumerator = wi_array_data_enumerator(addresses);
while((address = wi_enumerator_next_data(enumerator))) {
ip = wi_address_string(address);
family = wi_address_family(address);
/* force address family? */
if(wd_address_family != WI_ADDRESS_NULL && family != wd_address_family)
continue;
/* create sockets */
wi_address_set_port(address, wd_settings.port);
control_socket = wi_autorelease(wi_socket_init_with_address(wi_socket_alloc(), address, WI_SOCKET_TCP));
wi_address_set_port(address, wd_settings.port + 1);
transfer_socket = wi_autorelease(wi_socket_init_with_address(wi_socket_alloc(), address, WI_SOCKET_TCP));
if(!control_socket || !transfer_socket) {
wi_log_warn(WI_STR("Could not create socket for %@: %m"), ip);
continue;
}
/* listen on sockets */
if(!wi_socket_listen(control_socket)) {
wi_log_warn(WI_STR("Could not listen on %@ port %u: %m"),
ip, wi_address_port(wi_socket_address(control_socket)));
continue;
}
if(!wi_socket_listen(transfer_socket)) {
wi_log_warn(WI_STR("Could not listen on %@ port %u: %m"),
ip, wi_address_port(wi_socket_address(transfer_socket)));
continue;
}
wi_socket_set_interactive(control_socket, true);
wi_socket_set_interactive(transfer_socket, false);
/* add to list of sockets */
wi_mutable_array_add_data(wd_control_sockets, control_socket);
wi_mutable_array_add_data(wd_transfer_sockets, transfer_socket);
wi_log_info(WI_STR("Listening on %@ ports %d-%d"),
ip, wd_settings.port, wd_settings.port + 1);
}
if(wi_array_count(wd_control_sockets) == 0 || wi_array_count(wd_transfer_sockets) == 0)
wi_log_fatal(WI_STR("No addresses available for listening"));
wi_release(addresses);
#ifdef HAVE_DNS_SD_H
if(wd_settings.zeroconf)
wd_server_register_dnssd();
#endif
}