示例#1
0
文件: osc_pad.cpp 项目: emf/Eigenharp
void osc_wire_t::invalidate()
{
    source_shutdown();

    unsubscribe();

    piw::tsd_fastcall(__wire_invalidator, this, 0);

    if(root_)
    {
        root_->children_.erase(path());
        root_ = 0;
    }
}
示例#2
0
文件: osc_pad.cpp 项目: emf/Eigenharp
light_wire_t::~light_wire_t()
{
	// pic::logmsg() << "light_wire_t::~light_wire_t";
	source_shutdown();
}
示例#3
0
void source_main (source_t *source)
{
    refbuf_t *refbuf;
    client_t *client;
    avl_node *client_node;

    source_init (source);

    while (global.running == ICE_RUNNING && source->running) {
        int remove_from_q;

        refbuf = get_next_buffer (source);

        remove_from_q = 0;
        source->short_delay = 0;

        if (refbuf)
        {
            /* append buffer to the in-flight data queue,  */
            if (source->stream_data == NULL)
            {
                source->stream_data = refbuf;
                source->burst_point = refbuf;
            }
            if (source->stream_data_tail)
                source->stream_data_tail->next = refbuf;
            source->stream_data_tail = refbuf;
            source->queue_size += refbuf->len;
            /* new buffer is referenced for burst */
            refbuf_addref (refbuf);

            /* new data on queue, so check the burst point */
            source->burst_offset += refbuf->len;
            while (source->burst_offset > source->burst_size)
            {
                refbuf_t *to_release = source->burst_point;

                if (to_release->next)
                {
                    source->burst_point = to_release->next;
                    source->burst_offset -= to_release->len;
                    refbuf_release (to_release);
                    continue;
                }
                break;
            }

            /* save stream to file */
            if (source->dumpfile && source->format->write_buf_to_file)
                source->format->write_buf_to_file (source, refbuf);
        }
        /* lets see if we have too much data in the queue, but don't remove it until later */
        if (source->queue_size > source->queue_size_limit)
            remove_from_q = 1;

        /* acquire write lock on pending_tree */
        avl_tree_wlock(source->pending_tree);

        /* acquire write lock on client_tree */
        avl_tree_wlock(source->client_tree);

        client_node = avl_get_first(source->client_tree);
        while (client_node) {
            client = (client_t *)client_node->key;

            send_to_listener (source, client, remove_from_q);

            if (client->con->error) {
                client_node = avl_get_next(client_node);
                if (client->respcode == 200)
                    stats_event_dec (NULL, "listeners");
                avl_delete(source->client_tree, (void *)client, _free_client);
                source->listeners--;
                DEBUG0("Client removed");
                continue;
            }
            client_node = avl_get_next(client_node);
        }

        /** add pending clients **/
        client_node = avl_get_first(source->pending_tree);
        while (client_node) {

            if(source->max_listeners != -1 && 
                    source->listeners >= (unsigned long)source->max_listeners) 
            {
                /* The common case is caught in the main connection handler,
                 * this deals with rarer cases (mostly concerning fallbacks)
                 * and doesn't give the listening client any information about
                 * why they were disconnected
                 */
                client = (client_t *)client_node->key;
                client_node = avl_get_next(client_node);
                avl_delete(source->pending_tree, (void *)client, _free_client);

                INFO0("Client deleted, exceeding maximum listeners for this "
                        "mountpoint.");
                continue;
            }
            
            /* Otherwise, the client is accepted, add it */
            avl_insert(source->client_tree, client_node->key);

            source->listeners++;
            DEBUG0("Client added");
            stats_event_inc(source->mount, "connections");

            client_node = avl_get_next(client_node);
        }

        /** clear pending tree **/
        while (avl_get_first(source->pending_tree)) {
            avl_delete(source->pending_tree, 
                    avl_get_first(source->pending_tree)->key, 
                    source_remove_client);
        }

        /* release write lock on pending_tree */
        avl_tree_unlock(source->pending_tree);

        /* update the stats if need be */
        if (source->listeners != source->prev_listeners)
        {
            source->prev_listeners = source->listeners;
            INFO2("listener count on %s now %lu", source->mount, source->listeners);
            if (source->listeners > source->peak_listeners)
            {
                source->peak_listeners = source->listeners;
                stats_event_args (source->mount, "listener_peak", "%lu", source->peak_listeners);
            }
            stats_event_args (source->mount, "listeners", "%lu", source->listeners);
            if (source->listeners == 0 && source->on_demand)
                source->running = 0;
        }

        /* lets reduce the queue, any lagging clients should of been
         * terminated by now
         */
        if (source->stream_data)
        {
            /* normal unreferenced queue data will have a refcount 1, but
             * burst queue data will be at least 2, active clients will also
             * increase refcount */
            while (source->stream_data->_count == 1)
            {
                refbuf_t *to_go = source->stream_data;

                if (to_go->next == NULL || source->burst_point == to_go)
                {
                    /* this should not happen */
                    ERROR0 ("queue state is unexpected");
                    source->running = 0;
                    break;
                }
                source->stream_data = to_go->next;
                source->queue_size -= to_go->len;
                to_go->next = NULL;
                refbuf_release (to_go);
            }
        }

        /* release write lock on client_tree */
        avl_tree_unlock(source->client_tree);
    }
    source_shutdown (source);
}
示例#4
0
palm_wire_t::~palm_wire_t()
{
    source_end(piw::tsd_time());
    piw::wire_ctl_t::disconnect();
    source_shutdown();
}