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https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-10-31 22:25:38 -04:00
node: make add_listener method
Make struct spa_node_events for events emited from the main thread and keep the spa_node_callbacks for the data thread callbacks. The add_listener method installs the events and it's possible to install multiple handles. Adding a listener first emits the info and port_info events when installed, similar to how the PipeWire proxy bind works. This removes the need for the spa_pending_queue and makes it easier to implement the _sync versions. Add some helpers to make it easier for plugins to emit all the info to new listeners. Use the listeners for devices as well.
This commit is contained in:
Wim Taymans
parent
61ce4e77f6
commit
0390969228
53 changed files with 1774 additions and 1307 deletions
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@ -74,6 +74,7 @@ struct buffer {
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};
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struct port {
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uint64_t info_all;
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struct spa_port_info info;
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struct spa_param_info params[5];
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@ -97,10 +98,12 @@ struct impl {
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struct spa_log *log;
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struct spa_loop *data_loop;
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uint64_t info_all;
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struct spa_node_info info;
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struct spa_param_info params[2];
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struct props props;
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struct spa_hook_list hooks;
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const struct spa_node_callbacks *callbacks;
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void *callbacks_data;
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@ -129,13 +132,11 @@ static int impl_node_enum_params(struct spa_node *node, int seq,
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uint8_t buffer[1024];
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struct spa_result_node_params result;
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uint32_t count = 0;
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int res;
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spa_return_val_if_fail(node != NULL, -EINVAL);
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spa_return_val_if_fail(num != 0, -EINVAL);
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this = SPA_CONTAINER_OF(node, struct impl, node);
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spa_return_val_if_fail(this->callbacks && this->callbacks->result, -EIO);
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result.id = id;
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result.next = start;
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@ -202,8 +203,7 @@ static int impl_node_enum_params(struct spa_node *node, int seq,
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if (spa_pod_filter(&b, &result.param, param, filter) < 0)
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goto next;
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if ((res = this->callbacks->result(this->callbacks_data, seq, 0, &result)) != 0)
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return res;
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spa_node_emit_result(&this->hooks, seq, 0, &result);
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if (++count != num)
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goto next;
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@ -401,23 +401,50 @@ static const struct spa_dict_item node_info_items[] = {
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{ "media.class", "Video/Source" },
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};
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static void emit_node_info(struct impl *this)
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static void emit_node_info(struct impl *this, bool full)
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{
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if (this->callbacks && this->callbacks->info && this->info.change_mask) {
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if (full)
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this->info.change_mask = this->info_all;
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if (this->info.change_mask) {
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this->info.props = &SPA_DICT_INIT_ARRAY(node_info_items);
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this->callbacks->info(this->callbacks_data, &this->info);
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spa_node_emit_info(&this->hooks, &this->info);
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this->info.change_mask = 0;
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}
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}
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static void emit_port_info(struct impl *this, struct port *port)
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static void emit_port_info(struct impl *this, struct port *port, bool full)
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{
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if (this->callbacks && this->callbacks->port_info && port->info.change_mask) {
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this->callbacks->port_info(this->callbacks_data, SPA_DIRECTION_OUTPUT, 0, &port->info);
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if (full)
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port->info.change_mask = port->info_all;
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if (port->info.change_mask) {
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spa_node_emit_port_info(&this->hooks,
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SPA_DIRECTION_OUTPUT, 0, &port->info);
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port->info.change_mask = 0;
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}
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}
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static int
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impl_node_add_listener(struct spa_node *node,
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struct spa_hook *listener,
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const struct spa_node_events *events,
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void *data)
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{
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struct impl *this;
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struct spa_hook_list save;
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spa_return_val_if_fail(node != NULL, -EINVAL);
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this = SPA_CONTAINER_OF(node, struct impl, node);
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spa_hook_list_isolate(&this->hooks, &save, listener, events, data);
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emit_node_info(this, true);
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emit_port_info(this, &this->port, true);
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spa_hook_list_join(&this->hooks, &save);
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return 0;
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}
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static int
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impl_node_set_callbacks(struct spa_node *node,
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const struct spa_node_callbacks *callbacks,
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@ -432,9 +459,6 @@ impl_node_set_callbacks(struct spa_node *node,
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this->callbacks = callbacks;
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this->callbacks_data = data;
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emit_node_info(this);
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emit_port_info(this, &this->port);
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return 0;
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}
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@ -501,7 +525,6 @@ impl_node_port_enum_params(struct spa_node *node, int seq,
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spa_return_val_if_fail(num != 0, -EINVAL);
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this = SPA_CONTAINER_OF(node, struct impl, node);
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spa_return_val_if_fail(this->callbacks && this->callbacks->result, -EIO);
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spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
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port = &this->port;
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@ -567,8 +590,7 @@ impl_node_port_enum_params(struct spa_node *node, int seq,
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if (spa_pod_filter(&b, &result.param, param, filter) < 0)
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goto next;
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if ((res = this->callbacks->result(this->callbacks_data, seq, 0, &result)) != 0)
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return res;
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spa_node_emit_result(&this->hooks, seq, 0, &result);
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if (++count != num)
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goto next;
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@ -631,7 +653,7 @@ static int port_set_format(struct impl *this, struct port *port,
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port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
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port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0);
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}
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emit_port_info(this, port);
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emit_port_info(this, port, false);
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return 0;
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}
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@ -816,11 +838,12 @@ static int impl_node_process(struct spa_node *node)
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static const struct spa_node impl_node = {
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SPA_VERSION_NODE,
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.add_listener = impl_node_add_listener,
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.set_callbacks = impl_node_set_callbacks,
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.enum_params = impl_node_enum_params,
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.set_param = impl_node_set_param,
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.set_io = impl_node_set_io,
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.send_command = impl_node_send_command,
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.set_callbacks = impl_node_set_callbacks,
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.add_port = impl_node_add_port,
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.remove_port = impl_node_remove_port,
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.port_enum_params = impl_node_port_enum_params,
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@ -897,13 +920,15 @@ impl_init(const struct spa_handle_factory *factory,
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this->data_loop = support[i].data;
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}
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spa_hook_list_init(&this->hooks);
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this->node = impl_node;
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this->info_all = SPA_NODE_CHANGE_MASK_FLAGS |
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SPA_NODE_CHANGE_MASK_PROPS |
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SPA_NODE_CHANGE_MASK_PARAMS;
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this->info = SPA_NODE_INFO_INIT();
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this->info.max_output_ports = 1;
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this->info.change_mask |= SPA_NODE_CHANGE_MASK_FLAGS;
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this->info.flags = SPA_NODE_FLAG_RT;
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this->info.change_mask |= SPA_NODE_CHANGE_MASK_PROPS;
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this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
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this->params[0] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ);
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this->params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE);
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this->info.params = this->params;
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@ -924,12 +949,12 @@ impl_init(const struct spa_handle_factory *factory,
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spa_loop_add_source(this->data_loop, &this->timer_source);
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port = &this->port;
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port->info_all = SPA_PORT_CHANGE_MASK_FLAGS |
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SPA_PORT_CHANGE_MASK_PARAMS;
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port->info = SPA_PORT_INFO_INIT();
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port->info.change_mask |= SPA_PORT_CHANGE_MASK_FLAGS;
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port->info.flags = SPA_PORT_FLAG_CAN_USE_BUFFERS | SPA_PORT_FLAG_NO_REF;
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if (this->props.live)
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this->info.flags |= SPA_PORT_FLAG_LIVE;
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port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS;
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port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ);
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port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ);
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port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ);
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