#define BABELTRACE_GRAPH_COMPONENT_CLASS_H
/*
- * Babeltrace - Component Class Interface.
- *
* Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* SOFTWARE.
*/
-#include <stdint.h>
-
-/* For enum bt_component_status */
-#include <babeltrace/graph/component-status.h>
-
-/* For enum bt_notification_iterator_status */
-#include <babeltrace/graph/notification-iterator.h>
-
-/* For enum bt_query_status */
-#include <babeltrace/graph/query-executor.h>
-
/* For bt_bool */
#include <babeltrace/types.h>
-/* For bt_notification_array */
-#include <babeltrace/graph/notification.h>
-
#ifdef __cplusplus
extern "C" {
#endif
struct bt_component_class;
-struct bt_component;
-struct bt_private_component;
-struct bt_private_port;
-struct bt_port;
-struct bt_value;
-struct bt_private_connection_private_notification_iterator;
-struct bt_query_executor;
-/**
- * Component class type.
- */
enum bt_component_class_type {
- BT_COMPONENT_CLASS_TYPE_UNKNOWN = -1,
-
- /** A source component is a notification generator. */
BT_COMPONENT_CLASS_TYPE_SOURCE = 0,
-
- /** A sink component handles incoming notifications. */
- BT_COMPONENT_CLASS_TYPE_SINK = 1,
-
- /** A filter component implements both Source and Sink interfaces. */
- BT_COMPONENT_CLASS_TYPE_FILTER = 2,
+ BT_COMPONENT_CLASS_TYPE_FILTER = 1,
+ BT_COMPONENT_CLASS_TYPE_SINK = 2,
};
-struct bt_component_class_query_method_return {
- struct bt_value *result;
- enum bt_query_status status;
-};
-
-typedef enum bt_component_status (*bt_component_class_init_method)(
- struct bt_private_component *private_component,
- struct bt_value *params, void *init_method_data);
-
-typedef void (*bt_component_class_finalize_method)(
- struct bt_private_component *private_component);
-
-typedef enum bt_notification_iterator_status
- (*bt_component_class_notification_iterator_init_method)(
- struct bt_private_connection_private_notification_iterator *notification_iterator,
- struct bt_private_port *private_port);
-
-typedef void (*bt_component_class_notification_iterator_finalize_method)(
- struct bt_private_connection_private_notification_iterator *notification_iterator);
-
-typedef enum bt_notification_iterator_status
-(*bt_component_class_notification_iterator_next_method)(
- struct bt_private_connection_private_notification_iterator *notification_iterator,
- bt_notification_array notifs, uint64_t capacity,
- uint64_t *count);
-
-typedef struct bt_component_class_query_method_return (*bt_component_class_query_method)(
- struct bt_component_class *component_class,
- struct bt_query_executor *query_executor,
- const char *object, struct bt_value *params);
-
-typedef enum bt_component_status (*bt_component_class_accept_port_connection_method)(
- struct bt_private_component *private_component,
- struct bt_private_port *self_private_port,
- struct bt_port *other_port);
-
-typedef enum bt_component_status (*bt_component_class_port_connected_method)(
- struct bt_private_component *private_component,
- struct bt_private_port *self_private_port,
- struct bt_port *other_port);
-
-typedef void (*bt_component_class_port_disconnected_method)(
- struct bt_private_component *private_component,
- struct bt_private_port *private_port);
-
-extern int bt_component_class_set_init_method(
- struct bt_component_class *component_class,
- bt_component_class_init_method method);
-
-extern int bt_component_class_set_finalize_method(
- struct bt_component_class *component_class,
- bt_component_class_finalize_method method);
-
-extern int bt_component_class_set_accept_port_connection_method(
- struct bt_component_class *component_class,
- bt_component_class_accept_port_connection_method method);
-
-extern int bt_component_class_set_port_connected_method(
- struct bt_component_class *component_class,
- bt_component_class_port_connected_method method);
-
-extern int bt_component_class_set_port_disconnected_method(
- struct bt_component_class *component_class,
- bt_component_class_port_disconnected_method method);
-
-extern int bt_component_class_set_query_method(
- struct bt_component_class *component_class,
- bt_component_class_query_method method);
-
-extern int bt_component_class_set_description(
- struct bt_component_class *component_class,
- const char *description);
-
-extern int bt_component_class_set_help(
- struct bt_component_class *component_class,
- const char *help);
-
-extern int bt_component_class_freeze(
- struct bt_component_class *component_class);
-
-/**
- * Get a component class' name.
- *
- * @param component_class Component class of which to get the name
- * @returns Name of the component class
- */
extern const char *bt_component_class_get_name(
struct bt_component_class *component_class);
-/**
- * Get a component class' description.
- *
- * Component classes may provide an optional description. It may, however,
- * opt not to.
- *
- * @param component_class Component class of which to get the description
- * @returns Description of the component class, or NULL.
- */
extern const char *bt_component_class_get_description(
struct bt_component_class *component_class);
extern const char *bt_component_class_get_help(
struct bt_component_class *component_class);
-/**
- * Get a component class' type.
- *
- * @param component_class Component class of which to get the type
- * @returns One of #bt_component_type
- */
extern enum bt_component_class_type bt_component_class_get_type(
struct bt_component_class *component_class);
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