#include <babeltrace/graph/graph.h>
#include <babeltrace/graph/connection-internal.h>
-#include <babeltrace/graph/notification-const.h>
+#include <babeltrace/graph/message-const.h>
+#include <babeltrace/graph/component-internal.h>
+#include <babeltrace/graph/component-sink-internal.h>
#include <babeltrace/babeltrace-internal.h>
#include <babeltrace/object-internal.h>
#include <babeltrace/object-pool-internal.h>
struct bt_component;
struct bt_port;
+enum bt_graph_configuration_state {
+ BT_GRAPH_CONFIGURATION_STATE_CONFIGURING,
+ BT_GRAPH_CONFIGURATION_STATE_PARTIALLY_CONFIGURED,
+ BT_GRAPH_CONFIGURATION_STATE_CONFIGURED,
+ BT_GRAPH_CONFIGURATION_STATE_FAULTY,
+};
+
struct bt_graph {
/**
* A component graph contains components and point-to-point connection
* BT_GRAPH_STATUS_CANNOT_CONSUME. The internal "no check"
* functions always work.
*
- * In bt_port_output_notification_iterator_create(), on success,
+ * In bt_port_output_message_iterator_create(), on success,
* this flag is cleared so that the iterator remains the only
* consumer for the graph's lifetime.
*/
bool can_consume;
+ enum bt_graph_configuration_state config_state;
+
struct {
GArray *source_output_port_added;
GArray *filter_output_port_added;
GArray *filter_input_port_added;
GArray *sink_input_port_added;
- GArray *source_output_port_removed;
- GArray *filter_output_port_removed;
- GArray *filter_input_port_removed;
- GArray *sink_input_port_removed;
GArray *source_filter_ports_connected;
GArray *source_sink_ports_connected;
+ GArray *filter_filter_ports_connected;
GArray *filter_sink_ports_connected;
- GArray *source_filter_ports_disconnected;
- GArray *source_sink_ports_disconnected;
- GArray *filter_sink_ports_disconnected;
} listeners;
- /* Pool of `struct bt_notification_event *` */
- struct bt_object_pool event_notif_pool;
+ /* Pool of `struct bt_message_event *` */
+ struct bt_object_pool event_msg_pool;
- /* Pool of `struct bt_notification_packet_beginning *` */
- struct bt_object_pool packet_begin_notif_pool;
+ /* Pool of `struct bt_message_packet_beginning *` */
+ struct bt_object_pool packet_begin_msg_pool;
- /* Pool of `struct bt_notification_packet_end *` */
- struct bt_object_pool packet_end_notif_pool;
+ /* Pool of `struct bt_message_packet_end *` */
+ struct bt_object_pool packet_end_msg_pool;
/*
- * Array of `struct bt_notification *` (weak).
+ * Array of `struct bt_message *` (weak).
*
- * This is an array of all the notifications ever created from
+ * This is an array of all the messages ever created from
* this graph. Some of them can be in one of the pools above,
- * some of them can be at large. Because each notification has a
+ * some of them can be at large. Because each message has a
* weak pointer to the graph containing its pool, we need to
- * notify each notification that the graph is gone on graph
+ * notify each message that the graph is gone on graph
* destruction.
*
* TODO: When we support a maximum size for object pools,
- * add a way for a notification to remove itself from this
+ * add a way for a message to remove itself from this
* array (on destruction).
*/
- GPtrArray *notifications;
+ GPtrArray *messages;
};
static inline
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);
-
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);
-
BT_HIDDEN
void bt_graph_remove_connection(struct bt_graph *graph,
struct bt_connection *connection);
struct bt_component *component);
BT_HIDDEN
-void bt_graph_add_notification(struct bt_graph *graph,
- struct bt_notification *notif);
+void bt_graph_add_message(struct bt_graph *graph,
+ struct bt_message *msg);
static inline
const char *bt_graph_status_string(enum bt_graph_status status)
return "BT_GRAPH_STATUS_END";
case BT_GRAPH_STATUS_OK:
return "BT_GRAPH_STATUS_OK";
- case BT_GRAPH_STATUS_NO_SINK:
- return "BT_GRAPH_STATUS_NO_SINK";
case BT_GRAPH_STATUS_ERROR:
return "BT_GRAPH_STATUS_ERROR";
case BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION:
}
}
+static inline
+const char *bt_graph_configuration_state_string(
+ enum bt_graph_configuration_state state)
+{
+ switch (state) {
+ case BT_GRAPH_CONFIGURATION_STATE_CONFIGURING:
+ return "BT_GRAPH_CONFIGURATION_STATE_CONFIGURING";
+ case BT_GRAPH_CONFIGURATION_STATE_PARTIALLY_CONFIGURED:
+ return "BT_GRAPH_CONFIGURATION_STATE_PARTIALLY_CONFIGURED";
+ case BT_GRAPH_CONFIGURATION_STATE_CONFIGURED:
+ return "BT_GRAPH_CONFIGURATION_STATE_CONFIGURED";
+ default:
+ return "(unknown)";
+ }
+}
+
+static inline
+enum bt_graph_status bt_graph_configure(struct bt_graph *graph)
+{
+ enum bt_graph_status status = BT_GRAPH_STATUS_OK;
+ uint64_t i;
+
+ BT_ASSERT(graph->config_state != BT_GRAPH_CONFIGURATION_STATE_FAULTY);
+
+ if (likely(graph->config_state ==
+ BT_GRAPH_CONFIGURATION_STATE_CONFIGURED)) {
+ goto end;
+ }
+
+#ifdef BT_ASSERT_PRE
+ BT_ASSERT_PRE(graph->has_sink, "Graph has no sink component: %!+g", graph);
+#endif
+
+ graph->config_state = BT_GRAPH_CONFIGURATION_STATE_PARTIALLY_CONFIGURED;
+
+ for (i = 0; i < graph->components->len; i++) {
+ struct bt_component *comp = graph->components->pdata[i];
+ struct bt_component_sink *comp_sink = (void *) comp;
+ struct bt_component_class_sink *comp_cls_sink =
+ (void *) comp->class;
+
+ if (comp->class->type != BT_COMPONENT_CLASS_TYPE_SINK) {
+ continue;
+ }
+
+ if (comp_sink->graph_is_configured_method_called) {
+ continue;
+ }
+
+ if (comp_cls_sink->methods.graph_is_configured) {
+ enum bt_self_component_status comp_status;
+
+#ifdef BT_LIB_LOGD
+ BT_LIB_LOGD("Calling user's \"graph is configured\" method: "
+ "%![graph-]+g, %![comp-]+c",
+ graph, comp);
+#endif
+
+ comp_status = comp_cls_sink->methods.graph_is_configured(
+ (void *) comp_sink);
+
+#ifdef BT_LIB_LOGD
+ BT_LIB_LOGD("User method returned: status=%s",
+ bt_self_component_status_string(comp_status));
+#endif
+
+#ifdef BT_ASSERT_PRE
+ BT_ASSERT_PRE(comp_status == BT_SELF_COMPONENT_STATUS_OK ||
+ comp_status == BT_SELF_COMPONENT_STATUS_ERROR ||
+ comp_status == BT_SELF_COMPONENT_STATUS_NOMEM,
+ "Unexpected returned status: status=%s",
+ bt_self_component_status_string(comp_status));
+#endif
+
+ if (comp_status != BT_SELF_COMPONENT_STATUS_OK) {
+ status = BT_GRAPH_STATUS_ERROR;
+#ifdef BT_LIB_LOGW
+ BT_LIB_LOGW("User's \"graph is configured\" method failed: "
+ "%![comp-]+c, status=%s",
+ comp,
+ bt_self_component_status_string(
+ comp_status));
+#endif
+
+ goto end;
+ }
+ }
+
+ comp_sink->graph_is_configured_method_called = true;
+ }
+
+ graph->config_state = BT_GRAPH_CONFIGURATION_STATE_CONFIGURED;
+
+end:
+ return status;
+}
+
#endif /* BABELTRACE_GRAPH_GRAPH_INTERNAL_H */
projects / babeltrace.git / blobdiff