-#ifndef BABELTRACE_COMPONENT_COMPONENT_GRAPH_INTERNAL_H
-#define BABELTRACE_COMPONENT_COMPONENT_GRAPH_INTERNAL_H
+#ifndef BABELTRACE_GRAPH_GRAPH_INTERNAL_H
+#define BABELTRACE_GRAPH_GRAPH_INTERNAL_H
/*
- * BabelTrace - Component Graph Internal
- *
* Copyright 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
*
* Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
*/
#include <babeltrace/graph/graph.h>
+#include <babeltrace/graph/connection-internal.h>
+#include <babeltrace/graph/notification.h>
#include <babeltrace/babeltrace-internal.h>
#include <babeltrace/object-internal.h>
+#include <babeltrace/object-pool-internal.h>
+#include <babeltrace/assert-internal.h>
+#include <stdlib.h>
#include <glib.h>
struct bt_component;
/* Queue of pointers (weak references) to sink bt_components. */
GQueue *sinks_to_consume;
+ bool canceled;
+ bool in_remove_listener;
+ bool has_sink;
+
+ /*
+ * If this is false, then the public API's consuming
+ * functions (bt_graph_consume() and bt_graph_run()) return
+ * BT_GRAPH_STATUS_CANNOT_CONSUME. The internal "no check"
+ * functions always work.
+ *
+ * In bt_port_output_notification_iterator_create(), on success,
+ * this flag is cleared so that the iterator remains the only
+ * consumer for the graph's lifetime.
+ */
+ bool can_consume;
+
struct {
- GArray *port_added;
- GArray *port_removed;
- GArray *ports_connected;
- GArray *ports_disconnected;
+ 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_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_notification_packet_begin *` */
+ struct bt_object_pool packet_begin_notif_pool;
+
+ /* Pool of `struct bt_notification_packet_end *` */
+ struct bt_object_pool packet_end_notif_pool;
+
+ /*
+ * Array of `struct bt_notification *` (weak).
+ *
+ * This is an array of all the notifications 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
+ * weak pointer to the graph containing its pool, we need to
+ * notify each notification 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
+ * array (on destruction).
+ */
+ GPtrArray *notifications;
};
+static inline
+void _bt_graph_set_can_consume(struct bt_graph *graph, bool can_consume)
+{
+ BT_ASSERT(graph);
+ graph->can_consume = can_consume;
+}
+
+#ifdef BT_DEV_MODE
+# define bt_graph_set_can_consume _bt_graph_set_can_consume
+#else
+# define bt_graph_set_can_consume(_graph, _can_consume)
+#endif
+
+BT_HIDDEN
+enum bt_graph_status bt_graph_consume_sink_no_check(struct bt_graph *graph,
+ struct bt_component_sink *sink);
+
BT_HIDDEN
void bt_graph_notify_port_added(struct bt_graph *graph, struct bt_port *port);
struct bt_port *upstream_port,
struct bt_port *downstream_port);
-#endif /* BABELTRACE_COMPONENT_COMPONENT_GRAPH_INTERNAL_H */
+BT_HIDDEN
+void bt_graph_remove_connection(struct bt_graph *graph,
+ struct bt_connection *connection);
+
+/*
+ * This only works with a component which is not connected at this
+ * point.
+ *
+ * Also the reference count of `component` should be 0 when you call
+ * this function, which means only `graph` owns the component, so it
+ * is safe to destroy.
+ */
+BT_HIDDEN
+int bt_graph_remove_unconnected_component(struct bt_graph *graph,
+ struct bt_component *component);
+
+BT_HIDDEN
+void bt_graph_add_notification(struct bt_graph *graph,
+ struct bt_notification *notif);
+
+static inline
+const char *bt_graph_status_string(enum bt_graph_status status)
+{
+ switch (status) {
+ case BT_GRAPH_STATUS_CANCELED:
+ return "BT_GRAPH_STATUS_CANCELED";
+ case BT_GRAPH_STATUS_AGAIN:
+ return "BT_GRAPH_STATUS_AGAIN";
+ case BT_GRAPH_STATUS_END:
+ 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:
+ return "BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION";
+ case BT_GRAPH_STATUS_NOMEM:
+ return "BT_GRAPH_STATUS_NOMEM";
+ default:
+ return "(unknown)";
+ }
+}
+
+#endif /* BABELTRACE_GRAPH_GRAPH_INTERNAL_H */
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