static void command_unsubscribe(char * token, Channel * c) {
char type[256];
int err = 0;
Subscription * s = NULL;
LINK * l;
json_read_string(&c->inp, type, sizeof(type));
if (read_stream(&c->inp) != 0) exception(ERR_JSON_SYNTAX);
if (read_stream(&c->inp) != MARKER_EOM) exception(ERR_JSON_SYNTAX);
for (l = subscriptions.next; l != &subscriptions;) {
Subscription * h = all2subscription(l);
l = l->next;
if (h->channel == c && strcmp(type, h->type) == 0) {
s = h;
break;
}
}
if (s == NULL) err = ERR_INV_CONTEXT;
if (err == 0) delete_subscription(s);
write_stringz(&c->out, "R");
write_stringz(&c->out, token);
write_errno(&c->out, err);
write_stream(&c->out, MARKER_EOM);
}
int virtual_stream_unsubscribe(Channel * c, const char * type) {
LINK * l;
int err = 0;
Subscription * s = NULL;
for (l = subscriptions.next; l != &subscriptions;) {
Subscription * h = all2subscription(l);
l = l->next;
if (h->channel == c && strcmp(type, h->type) == 0) {
s = h;
break;
}
}
if (s == NULL) err = ERR_INV_CONTEXT;
if (err == 0) delete_subscription(s);
else errno = err;
return err == 0 ? 0 : -1;
}
static void channel_close_listener(Channel * c) {
LINK * l = NULL;
for (l = clients.next; l != &clients;) {
StreamClient * client = all2client(l);
l = l->next;
if (client->channel == c) {
trace(LOG_ALWAYS, "Stream is left connected by client: VS%d", client->stream->id);
delete_client(client);
}
}
for (l = subscriptions.next; l != &subscriptions;) {
Subscription * h = all2subscription(l);
l = l->next;
if (h->channel == c) {
delete_subscription(h);
}
}
}
