typedef void (*port_added_func_t)(const void *, const void *, void *);
-typedef void (*port_removed_func_t)(const void *, const void *, void *);
-
typedef void (*ports_connected_func_t)(const void *, const void *, const void *,
const void *, void *);
-typedef void (*ports_disconnected_func_t)(const void *, const void *,
- const void *, const void *, void *);
-
typedef enum bt_self_component_status (*comp_init_method_t)(const void *,
const void *, void *);
port_added_func_t func;
};
-struct bt_graph_listener_port_removed {
- struct bt_graph_listener base;
- port_removed_func_t func;
-};
-
struct bt_graph_listener_ports_connected {
struct bt_graph_listener base;
ports_connected_func_t func;
};
-struct bt_graph_listener_ports_disconnected {
- struct bt_graph_listener base;
- ports_disconnected_func_t func;
-};
-
#define INIT_LISTENERS_ARRAY(_type, _listeners) \
do { \
_listeners = g_array_new(FALSE, TRUE, sizeof(_type)); \
graph->listeners.filter_input_port_added);
CALL_REMOVE_LISTENERS(struct bt_graph_listener_port_added,
graph->listeners.sink_input_port_added);
- CALL_REMOVE_LISTENERS(struct bt_graph_listener_port_removed,
- graph->listeners.source_output_port_removed);
- CALL_REMOVE_LISTENERS(struct bt_graph_listener_port_removed,
- graph->listeners.filter_output_port_removed);
- CALL_REMOVE_LISTENERS(struct bt_graph_listener_port_removed,
- graph->listeners.filter_input_port_removed);
- CALL_REMOVE_LISTENERS(struct bt_graph_listener_port_removed,
- graph->listeners.sink_input_port_removed);
CALL_REMOVE_LISTENERS(struct bt_graph_listener_ports_connected,
graph->listeners.source_filter_ports_connected);
CALL_REMOVE_LISTENERS(struct bt_graph_listener_ports_connected,
graph->listeners.source_sink_ports_connected);
CALL_REMOVE_LISTENERS(struct bt_graph_listener_ports_connected,
graph->listeners.filter_sink_ports_connected);
- CALL_REMOVE_LISTENERS(struct bt_graph_listener_ports_disconnected,
- graph->listeners.source_filter_ports_disconnected);
- CALL_REMOVE_LISTENERS(struct bt_graph_listener_ports_disconnected,
- graph->listeners.filter_filter_ports_disconnected);
- CALL_REMOVE_LISTENERS(struct bt_graph_listener_ports_disconnected,
- graph->listeners.source_sink_ports_disconnected);
- CALL_REMOVE_LISTENERS(struct bt_graph_listener_ports_disconnected,
- graph->listeners.filter_sink_ports_disconnected);
if (graph->messages) {
g_ptr_array_free(graph->messages, TRUE);
graph->listeners.sink_input_port_added = NULL;
}
- if (graph->listeners.source_output_port_removed) {
- g_array_free(graph->listeners.source_output_port_removed, TRUE);
- graph->listeners.source_output_port_removed = NULL;
- }
-
- if (graph->listeners.filter_output_port_removed) {
- g_array_free(graph->listeners.filter_output_port_removed, TRUE);
- graph->listeners.filter_output_port_removed = NULL;
- }
-
- if (graph->listeners.filter_input_port_removed) {
- g_array_free(graph->listeners.filter_input_port_removed, TRUE);
- graph->listeners.filter_input_port_removed = NULL;
- }
-
- if (graph->listeners.sink_input_port_removed) {
- g_array_free(graph->listeners.sink_input_port_removed, TRUE);
- graph->listeners.sink_input_port_removed = NULL;
- }
-
if (graph->listeners.source_filter_ports_connected) {
g_array_free(graph->listeners.source_filter_ports_connected,
TRUE);
graph->listeners.filter_sink_ports_connected = NULL;
}
- if (graph->listeners.source_filter_ports_disconnected) {
- g_array_free(graph->listeners.source_filter_ports_disconnected,
- TRUE);
- graph->listeners.source_filter_ports_disconnected = NULL;
- }
-
- if (graph->listeners.source_sink_ports_disconnected) {
- g_array_free(graph->listeners.source_sink_ports_disconnected,
- TRUE);
- graph->listeners.source_sink_ports_disconnected = NULL;
- }
-
- if (graph->listeners.filter_filter_ports_disconnected) {
- g_array_free(graph->listeners.filter_filter_ports_disconnected,
- TRUE);
- graph->listeners.filter_filter_ports_disconnected = NULL;
- }
-
- if (graph->listeners.filter_sink_ports_disconnected) {
- g_array_free(graph->listeners.filter_sink_ports_disconnected,
- TRUE);
- graph->listeners.filter_sink_ports_disconnected = NULL;
- }
-
bt_object_pool_finalize(&graph->event_msg_pool);
bt_object_pool_finalize(&graph->packet_begin_msg_pool);
bt_object_pool_finalize(&graph->packet_end_msg_pool);
goto error;
}
- INIT_LISTENERS_ARRAY(struct bt_graph_listener_port_removed,
- graph->listeners.source_output_port_removed);
-
- if (!graph->listeners.source_output_port_removed) {
- ret = -1;
- goto error;
- }
-
- INIT_LISTENERS_ARRAY(struct bt_graph_listener_port_removed,
- graph->listeners.filter_output_port_removed);
-
- if (!graph->listeners.filter_output_port_removed) {
- ret = -1;
- goto error;
- }
-
- INIT_LISTENERS_ARRAY(struct bt_graph_listener_port_removed,
- graph->listeners.filter_input_port_removed);
-
- if (!graph->listeners.filter_input_port_removed) {
- ret = -1;
- goto error;
- }
-
- INIT_LISTENERS_ARRAY(struct bt_graph_listener_port_removed,
- graph->listeners.sink_input_port_removed);
-
- if (!graph->listeners.sink_input_port_removed) {
- ret = -1;
- goto error;
- }
-
INIT_LISTENERS_ARRAY(struct bt_graph_listener_ports_connected,
graph->listeners.source_filter_ports_connected);
goto error;
}
- INIT_LISTENERS_ARRAY(struct bt_graph_listener_ports_disconnected,
- graph->listeners.source_filter_ports_disconnected);
-
- if (!graph->listeners.source_filter_ports_disconnected) {
- ret = -1;
- goto error;
- }
-
- INIT_LISTENERS_ARRAY(struct bt_graph_listener_ports_disconnected,
- graph->listeners.source_sink_ports_disconnected);
-
- if (!graph->listeners.source_sink_ports_disconnected) {
- ret = -1;
- goto error;
- }
-
- INIT_LISTENERS_ARRAY(struct bt_graph_listener_ports_disconnected,
- graph->listeners.filter_filter_ports_disconnected);
-
- if (!graph->listeners.filter_filter_ports_disconnected) {
- ret = -1;
- goto error;
- }
-
- INIT_LISTENERS_ARRAY(struct bt_graph_listener_ports_disconnected,
- graph->listeners.filter_sink_ports_disconnected);
-
- if (!graph->listeners.filter_sink_ports_disconnected) {
- ret = -1;
- goto error;
- }
-
ret = bt_object_pool_initialize(&graph->event_msg_pool,
(bt_object_pool_new_object_func) bt_message_event_new,
(bt_object_pool_destroy_object_func) destroy_message_event,
BT_ASSERT_PRE_NON_NULL(upstream_port, "Upstream port");
BT_ASSERT_PRE_NON_NULL(downstream_port, "Downstream port port");
BT_ASSERT_PRE(!graph->canceled, "Graph is canceled: %!+g", graph);
+ BT_ASSERT_PRE(!graph->is_configured,
+ "Graph is already configured: %!+g", graph);
BT_ASSERT_PRE(!bt_port_is_connected(upstream_port),
"Upstream port is already connected: %!+p", upstream_port);
BT_ASSERT_PRE(!bt_port_is_connected(downstream_port),
return status;
}
-enum bt_graph_status bt_graph_consume(
- struct bt_graph *graph)
+enum bt_graph_status bt_graph_consume(struct bt_graph *graph)
{
enum bt_graph_status status;
BT_ASSERT_PRE(!graph->canceled, "Graph is canceled: %!+g", graph);
BT_ASSERT_PRE(graph->can_consume,
"Cannot consume graph in its current state: %!+g", graph);
- bt_graph_set_can_consume(graph, BT_FALSE);
+ bt_graph_set_can_consume(graph, false);
+ bt_graph_set_is_configured(graph, true);
status = consume_no_check(graph);
- bt_graph_set_can_consume(graph, BT_TRUE);
+ bt_graph_set_can_consume(graph, true);
return status;
}
BT_ASSERT_PRE(!graph->canceled, "Graph is canceled: %!+g", graph);
BT_ASSERT_PRE(graph->can_consume,
"Cannot consume graph in its current state: %!+g", graph);
- bt_graph_set_can_consume(graph, BT_FALSE);
+ bt_graph_set_can_consume(graph, false);
+ bt_graph_set_is_configured(graph, true);
BT_LIB_LOGV("Running graph: %!+g", graph);
do {
end:
BT_LIB_LOGV("Graph ran: %![graph-]+g, status=%s", graph,
bt_graph_status_string(status));
- bt_graph_set_can_consume(graph, BT_TRUE);
+ bt_graph_set_can_consume(graph, true);
return status;
}
return BT_GRAPH_STATUS_OK;
}
-enum bt_graph_status
-bt_graph_add_source_component_output_port_removed_listener(
- struct bt_graph *graph,
- bt_graph_source_component_output_port_removed_listener_func func,
- bt_graph_listener_removed_func listener_removed, void *data,
- int *out_listener_id)
-{
- struct bt_graph_listener_port_removed listener = {
- .base = {
- .removed = listener_removed,
- .data = data,
- },
- .func = (port_removed_func_t) func,
- };
- int listener_id;
-
- BT_ASSERT_PRE_NON_NULL(graph, "Graph");
- BT_ASSERT_PRE_NON_NULL(func, "Listener");
- BT_ASSERT_PRE_NON_NULL(func, "\"Listener removed\" listener");
- BT_ASSERT_PRE(!graph->in_remove_listener,
- "Graph currently executing a \"listener removed\" listener: "
- "%!+g", graph);
- g_array_append_val(graph->listeners.source_output_port_removed, listener);
- listener_id = graph->listeners.source_output_port_removed->len - 1;
- BT_LIB_LOGV("Added \"source component output port removed\" listener to graph: "
- "%![graph-]+g, listener-addr=%p, id=%d", graph, listener,
- listener_id);
-
- if (listener_id) {
- *out_listener_id = listener_id;
- }
-
- return BT_GRAPH_STATUS_OK;
-}
-
-enum bt_graph_status
-bt_graph_add_filter_component_output_port_removed_listener(
- struct bt_graph *graph,
- bt_graph_filter_component_output_port_removed_listener_func func,
- bt_graph_listener_removed_func listener_removed, void *data,
- int *out_listener_id)
-{
- struct bt_graph_listener_port_removed listener = {
- .base = {
- .removed = listener_removed,
- .data = data,
- },
- .func = (port_removed_func_t) func,
- };
- int listener_id;
-
- BT_ASSERT_PRE_NON_NULL(graph, "Graph");
- BT_ASSERT_PRE_NON_NULL(func, "Listener");
- BT_ASSERT_PRE_NON_NULL(func, "\"Listener removed\" listener");
- BT_ASSERT_PRE(!graph->in_remove_listener,
- "Graph currently executing a \"listener removed\" listener: "
- "%!+g", graph);
- g_array_append_val(graph->listeners.filter_output_port_removed, listener);
- listener_id = graph->listeners.filter_output_port_removed->len - 1;
- BT_LIB_LOGV("Added \"filter component output port removed\" listener to graph: "
- "%![graph-]+g, listener-addr=%p, id=%d", graph, listener,
- listener_id);
-
- if (listener_id) {
- *out_listener_id = listener_id;
- }
-
- return BT_GRAPH_STATUS_OK;
-}
-
-enum bt_graph_status
-bt_graph_add_filter_component_input_port_removed_listener(
- struct bt_graph *graph,
- bt_graph_filter_component_input_port_removed_listener_func func,
- bt_graph_listener_removed_func listener_removed, void *data,
- int *out_listener_id)
-{
- struct bt_graph_listener_port_removed listener = {
- .base = {
- .removed = listener_removed,
- .data = data,
- },
- .func = (port_removed_func_t) func,
- };
- int listener_id;
-
- BT_ASSERT_PRE_NON_NULL(graph, "Graph");
- BT_ASSERT_PRE_NON_NULL(func, "Listener");
- BT_ASSERT_PRE_NON_NULL(func, "\"Listener removed\" listener");
- BT_ASSERT_PRE(!graph->in_remove_listener,
- "Graph currently executing a \"listener removed\" listener: "
- "%!+g", graph);
- g_array_append_val(graph->listeners.filter_input_port_removed, listener);
- listener_id = graph->listeners.filter_input_port_removed->len - 1;
- BT_LIB_LOGV("Added \"filter component input port removed\" listener to graph: "
- "%![graph-]+g, listener-addr=%p, id=%d", graph, listener,
- listener_id);
-
- if (listener_id) {
- *out_listener_id = listener_id;
- }
-
- return BT_GRAPH_STATUS_OK;
-}
-
-enum bt_graph_status
-bt_graph_add_sink_component_input_port_removed_listener(
- struct bt_graph *graph,
- bt_graph_sink_component_input_port_removed_listener_func func,
- bt_graph_listener_removed_func listener_removed, void *data,
- int *out_listener_id)
-{
- struct bt_graph_listener_port_removed listener = {
- .base = {
- .removed = listener_removed,
- .data = data,
- },
- .func = (port_removed_func_t) func,
- };
- int listener_id;
-
- BT_ASSERT_PRE_NON_NULL(graph, "Graph");
- BT_ASSERT_PRE_NON_NULL(func, "Listener");
- BT_ASSERT_PRE_NON_NULL(func, "\"Listener removed\" listener");
- BT_ASSERT_PRE(!graph->in_remove_listener,
- "Graph currently executing a \"listener removed\" listener: "
- "%!+g", graph);
- g_array_append_val(graph->listeners.sink_input_port_removed, listener);
- listener_id = graph->listeners.sink_input_port_removed->len - 1;
- BT_LIB_LOGV("Added \"sink component input port removed\" listener to graph: "
- "%![graph-]+g, listener-addr=%p, id=%d", graph, listener,
- listener_id);
-
- if (listener_id) {
- *out_listener_id = listener_id;
- }
-
- return BT_GRAPH_STATUS_OK;
-}
-
enum bt_graph_status
bt_graph_add_source_filter_component_ports_connected_listener(
struct bt_graph *graph,
return BT_GRAPH_STATUS_OK;
}
-enum bt_graph_status
-bt_graph_add_source_filter_component_ports_disconnected_listener(
- struct bt_graph *graph,
- bt_graph_source_filter_component_ports_disconnected_listener_func func,
- bt_graph_listener_removed_func listener_removed, void *data,
- int *out_listener_id)
-{
- struct bt_graph_listener_ports_disconnected listener = {
- .base = {
- .removed = listener_removed,
- .data = data,
- },
- .func = (ports_disconnected_func_t) func,
- };
- int listener_id;
-
- BT_ASSERT_PRE_NON_NULL(graph, "Graph");
- BT_ASSERT_PRE_NON_NULL(func, "Listener");
- BT_ASSERT_PRE_NON_NULL(func, "\"Listener removed\" listener");
- BT_ASSERT_PRE(!graph->in_remove_listener,
- "Graph currently executing a \"listener removed\" listener: "
- "%!+g", graph);
- g_array_append_val(graph->listeners.source_filter_ports_disconnected,
- listener);
- listener_id = graph->listeners.source_filter_ports_disconnected->len - 1;
- BT_LIB_LOGV("Added \"source to filter component ports disconnected\" listener to graph: "
- "%![graph-]+g, listener-addr=%p, id=%d", graph, listener,
- listener_id);
-
- if (listener_id) {
- *out_listener_id = listener_id;
- }
-
- return BT_GRAPH_STATUS_OK;
-}
-
-enum bt_graph_status
-bt_graph_add_source_sink_component_ports_disconnected_listener(
- struct bt_graph *graph,
- bt_graph_source_sink_component_ports_disconnected_listener_func func,
- bt_graph_listener_removed_func listener_removed, void *data,
- int *out_listener_id)
-{
- struct bt_graph_listener_ports_disconnected listener = {
- .base = {
- .removed = listener_removed,
- .data = data,
- },
- .func = (ports_disconnected_func_t) func,
- };
- int listener_id;
-
- BT_ASSERT_PRE_NON_NULL(graph, "Graph");
- BT_ASSERT_PRE_NON_NULL(func, "Listener");
- BT_ASSERT_PRE_NON_NULL(func, "\"Listener removed\" listener");
- BT_ASSERT_PRE(!graph->in_remove_listener,
- "Graph currently executing a \"listener removed\" listener: "
- "%!+g", graph);
- g_array_append_val(graph->listeners.source_sink_ports_disconnected,
- listener);
- listener_id = graph->listeners.source_sink_ports_disconnected->len - 1;
- BT_LIB_LOGV("Added \"source to sink component ports disconnected\" listener to graph: "
- "%![graph-]+g, listener-addr=%p, id=%d", graph, listener,
- listener_id);
-
- if (listener_id) {
- *out_listener_id = listener_id;
- }
-
- return BT_GRAPH_STATUS_OK;
-}
-
-enum bt_graph_status
-bt_graph_add_filter_filter_component_ports_disconnected_listener(
- struct bt_graph *graph,
- bt_graph_filter_filter_component_ports_disconnected_listener_func func,
- bt_graph_listener_removed_func listener_removed, void *data,
- int *out_listener_id)
-{
- struct bt_graph_listener_ports_disconnected listener = {
- .base = {
- .removed = listener_removed,
- .data = data,
- },
- .func = (ports_disconnected_func_t) func,
- };
- int listener_id;
-
- BT_ASSERT_PRE_NON_NULL(graph, "Graph");
- BT_ASSERT_PRE_NON_NULL(func, "Listener");
- BT_ASSERT_PRE_NON_NULL(func, "\"Listener removed\" listener");
- BT_ASSERT_PRE(!graph->in_remove_listener,
- "Graph currently executing a \"listener removed\" listener: "
- "%!+g", graph);
- g_array_append_val(graph->listeners.filter_filter_ports_disconnected,
- listener);
- listener_id = graph->listeners.filter_filter_ports_disconnected->len - 1;
- BT_LIB_LOGV("Added \"filter to filter component ports disconnected\" listener to graph: "
- "%![graph-]+g, listener-addr=%p, id=%d", graph, listener,
- listener_id);
-
- if (listener_id) {
- *out_listener_id = listener_id;
- }
-
- return BT_GRAPH_STATUS_OK;
-}
-
-enum bt_graph_status
-bt_graph_add_filter_sink_component_ports_disconnected_listener(
- struct bt_graph *graph,
- bt_graph_filter_sink_component_ports_disconnected_listener_func func,
- bt_graph_listener_removed_func listener_removed, void *data,
- int *out_listener_id)
-{
- struct bt_graph_listener_ports_disconnected listener = {
- .base = {
- .removed = listener_removed,
- .data = data,
- },
- .func = (ports_disconnected_func_t) func,
- };
- int listener_id;
-
- BT_ASSERT_PRE_NON_NULL(graph, "Graph");
- BT_ASSERT_PRE_NON_NULL(func, "Listener");
- BT_ASSERT_PRE_NON_NULL(func, "\"Listener removed\" listener");
- BT_ASSERT_PRE(!graph->in_remove_listener,
- "Graph currently executing a \"listener removed\" listener: "
- "%!+g", graph);
- g_array_append_val(graph->listeners.filter_sink_ports_disconnected,
- listener);
- listener_id = graph->listeners.filter_sink_ports_disconnected->len - 1;
- BT_LIB_LOGV("Added \"filter to sink component ports disconnected\" listener to graph: "
- "%![graph-]+g, listener-addr=%p, id=%d", graph, listener,
- listener_id);
-
- if (listener_id) {
- *out_listener_id = listener_id;
- }
-
- return BT_GRAPH_STATUS_OK;
-}
-
BT_HIDDEN
void bt_graph_notify_port_added(struct bt_graph *graph, struct bt_port *port)
{
}
}
-BT_HIDDEN
-void bt_graph_notify_port_removed(struct bt_graph *graph,
- struct bt_component *comp, struct bt_port *port)
-{
- uint64_t i;
- GArray *listeners;
-
- BT_ASSERT(graph);
- BT_ASSERT(port);
- BT_LIB_LOGV("Notifying graph listeners that a port was removed: "
- "%![graph-]+g, %![comp-]+c, %![port-]+p", graph, comp, port);
-
- switch (comp->class->type) {
- case BT_COMPONENT_CLASS_TYPE_SOURCE:
- {
- switch (port->type) {
- case BT_PORT_TYPE_OUTPUT:
- listeners = graph->listeners.source_output_port_removed;
- break;
- default:
- abort();
- }
-
- break;
- }
- case BT_COMPONENT_CLASS_TYPE_FILTER:
- {
- switch (port->type) {
- case BT_PORT_TYPE_INPUT:
- listeners = graph->listeners.filter_input_port_removed;
- break;
- case BT_PORT_TYPE_OUTPUT:
- listeners = graph->listeners.filter_output_port_removed;
- break;
- default:
- abort();
- }
-
- break;
- }
- case BT_COMPONENT_CLASS_TYPE_SINK:
- {
- switch (port->type) {
- case BT_PORT_TYPE_INPUT:
- listeners = graph->listeners.sink_input_port_removed;
- break;
- default:
- abort();
- }
-
- break;
- }
- default:
- abort();
- }
-
- for (i = 0; i < listeners->len; i++) {
- struct bt_graph_listener_port_removed *listener =
- &g_array_index(listeners,
- struct bt_graph_listener_port_removed, i);
-
- BT_ASSERT(listener->func);
- listener->func(comp, port, listener->base.data);
- }
-}
-
BT_HIDDEN
void bt_graph_notify_ports_connected(struct bt_graph *graph,
struct bt_port *upstream_port, struct bt_port *downstream_port)
}
}
-BT_HIDDEN
-void bt_graph_notify_ports_disconnected(struct bt_graph *graph,
- struct bt_component *upstream_comp,
- struct bt_component *downstream_comp,
- struct bt_port *upstream_port,
- struct bt_port *downstream_port)
-{
- uint64_t i;
- GArray *listeners;
-
- BT_ASSERT(graph);
- BT_ASSERT(upstream_comp);
- BT_ASSERT(downstream_comp);
- BT_ASSERT(upstream_port);
- BT_ASSERT(downstream_port);
- BT_LIB_LOGV("Notifying graph listeners that ports were disconnected: "
- "%![graph-]+g, %![up-port-]+p, %![down-port-]+p, "
- "%![up-comp-]+c, %![down-comp-]+c",
- graph, upstream_port, downstream_port, upstream_comp,
- downstream_comp);
-
- switch (upstream_comp->class->type) {
- case BT_COMPONENT_CLASS_TYPE_SOURCE:
- {
- switch (downstream_comp->class->type) {
- case BT_COMPONENT_CLASS_TYPE_FILTER:
- listeners =
- graph->listeners.source_filter_ports_disconnected;
- break;
- case BT_COMPONENT_CLASS_TYPE_SINK:
- listeners =
- graph->listeners.source_sink_ports_disconnected;
- break;
- default:
- abort();
- }
-
- break;
- }
- case BT_COMPONENT_CLASS_TYPE_FILTER:
- {
- switch (downstream_comp->class->type) {
- case BT_COMPONENT_CLASS_TYPE_FILTER:
- listeners =
- graph->listeners.filter_filter_ports_disconnected;
- break;
- case BT_COMPONENT_CLASS_TYPE_SINK:
- listeners =
- graph->listeners.filter_sink_ports_disconnected;
- break;
- default:
- abort();
- }
-
- break;
- }
- default:
- abort();
- }
-
- for (i = 0; i < listeners->len; i++) {
- struct bt_graph_listener_ports_disconnected *listener =
- &g_array_index(listeners,
- struct bt_graph_listener_ports_disconnected, i);
-
- BT_ASSERT(listener->func);
- listener->func(upstream_comp, downstream_comp,
- upstream_port, downstream_port, listener->base.data);
- }
-}
-
-enum bt_graph_status bt_graph_cancel(
- struct bt_graph *graph)
+enum bt_graph_status bt_graph_cancel(struct bt_graph *graph)
{
BT_ASSERT_PRE_NON_NULL(graph, "Graph");
BT_ASSERT_PRE_NON_NULL(graph, "Graph");
BT_ASSERT_PRE_NON_NULL(name, "Name");
BT_ASSERT_PRE(!graph->canceled, "Graph is canceled: %!+g", graph);
+ BT_ASSERT_PRE(!graph->is_configured,
+ "Graph is already configured: %!+g", graph);
BT_ASSERT_PRE(!component_name_exists(graph, name),
"Duplicate component name: %!+g, name=\"%s\"", graph, name);
BT_ASSERT_PRE(!params || bt_value_is_map(params),