| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com> |
| 5 | * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 6 | */ |
| 7 | |
| 8 | #ifndef BABELTRACE_GRAPH_COMPONENT_CLASS_INTERNAL_H |
| 9 | #define BABELTRACE_GRAPH_COMPONENT_CLASS_INTERNAL_H |
| 10 | |
| 11 | #include <babeltrace2/graph/component-class.h> |
| 12 | #include <babeltrace2/graph/component.h> |
| 13 | #include "common/macros.h" |
| 14 | #include "lib/object.h" |
| 15 | #include "common/list.h" |
| 16 | #include <babeltrace2/types.h> |
| 17 | #include <stdbool.h> |
| 18 | #include <glib.h> |
| 19 | |
| 20 | struct bt_component_class; |
| 21 | struct bt_plugin_so_shared_lib_handle; |
| 22 | |
| 23 | typedef void (*bt_component_class_destroy_listener_func)( |
| 24 | struct bt_component_class *class, void *data); |
| 25 | |
| 26 | struct bt_component_class_destroy_listener { |
| 27 | bt_component_class_destroy_listener_func func; |
| 28 | void *data; |
| 29 | }; |
| 30 | |
| 31 | struct bt_component_class { |
| 32 | struct bt_object base; |
| 33 | enum bt_component_class_type type; |
| 34 | GString *name; |
| 35 | GString *description; |
| 36 | GString *help; |
| 37 | GString *plugin_name; |
| 38 | |
| 39 | /* Array of struct bt_component_class_destroy_listener */ |
| 40 | GArray *destroy_listeners; |
| 41 | bool frozen; |
| 42 | struct bt_list_head node; |
| 43 | struct bt_plugin_so_shared_lib_handle *so_handle; |
| 44 | }; |
| 45 | |
| 46 | struct bt_component_class_with_iterator_class { |
| 47 | struct bt_component_class parent; |
| 48 | bt_message_iterator_class *msg_iter_cls; |
| 49 | }; |
| 50 | |
| 51 | struct bt_component_class_source { |
| 52 | struct bt_component_class_with_iterator_class parent; |
| 53 | struct { |
| 54 | bt_component_class_source_get_supported_mip_versions_method get_supported_mip_versions; |
| 55 | bt_component_class_source_initialize_method init; |
| 56 | bt_component_class_source_finalize_method finalize; |
| 57 | bt_component_class_source_query_method query; |
| 58 | bt_component_class_source_output_port_connected_method output_port_connected; |
| 59 | } methods; |
| 60 | }; |
| 61 | |
| 62 | struct bt_component_class_filter { |
| 63 | struct bt_component_class_with_iterator_class parent; |
| 64 | struct { |
| 65 | bt_component_class_filter_get_supported_mip_versions_method get_supported_mip_versions; |
| 66 | bt_component_class_filter_initialize_method init; |
| 67 | bt_component_class_filter_finalize_method finalize; |
| 68 | bt_component_class_filter_query_method query; |
| 69 | bt_component_class_filter_input_port_connected_method input_port_connected; |
| 70 | bt_component_class_filter_output_port_connected_method output_port_connected; |
| 71 | } methods; |
| 72 | }; |
| 73 | |
| 74 | struct bt_component_class_sink { |
| 75 | struct bt_component_class parent; |
| 76 | struct { |
| 77 | bt_component_class_sink_get_supported_mip_versions_method get_supported_mip_versions; |
| 78 | bt_component_class_sink_initialize_method init; |
| 79 | bt_component_class_sink_finalize_method finalize; |
| 80 | bt_component_class_sink_query_method query; |
| 81 | bt_component_class_sink_input_port_connected_method input_port_connected; |
| 82 | bt_component_class_sink_graph_is_configured_method graph_is_configured; |
| 83 | bt_component_class_sink_consume_method consume; |
| 84 | } methods; |
| 85 | }; |
| 86 | |
| 87 | BT_HIDDEN |
| 88 | void bt_component_class_add_destroy_listener(struct bt_component_class *class, |
| 89 | bt_component_class_destroy_listener_func func, void *data); |
| 90 | |
| 91 | BT_HIDDEN |
| 92 | void _bt_component_class_freeze( |
| 93 | const struct bt_component_class *component_class); |
| 94 | |
| 95 | #ifdef BT_DEV_MODE |
| 96 | # define bt_component_class_freeze _bt_component_class_freeze |
| 97 | #else |
| 98 | # define bt_component_class_freeze(_cc) |
| 99 | #endif |
| 100 | |
| 101 | static inline |
| 102 | const char *bt_component_class_type_string(enum bt_component_class_type type) |
| 103 | { |
| 104 | switch (type) { |
| 105 | case BT_COMPONENT_CLASS_TYPE_SOURCE: |
| 106 | return "SOURCE"; |
| 107 | case BT_COMPONENT_CLASS_TYPE_SINK: |
| 108 | return "SINK"; |
| 109 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
| 110 | return "FILTER"; |
| 111 | default: |
| 112 | return "(unknown)"; |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | static inline |
| 117 | bool bt_component_class_has_message_iterator_class( |
| 118 | struct bt_component_class *component_class) |
| 119 | { |
| 120 | return component_class->type == BT_COMPONENT_CLASS_TYPE_SOURCE || |
| 121 | component_class->type == BT_COMPONENT_CLASS_TYPE_FILTER; |
| 122 | } |
| 123 | |
| 124 | #endif /* BABELTRACE_GRAPH_COMPONENT_CLASS_INTERNAL_H */ |