| 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_LIB_GRAPH_COMPONENT_H |
| 9 | #define BABELTRACE_LIB_GRAPH_COMPONENT_H |
| 10 | |
| 11 | #include <babeltrace2/graph/component.h> |
| 12 | #include <babeltrace2/graph/component-class.h> |
| 13 | #include "lib/object.h" |
| 14 | #include <babeltrace2/types.h> |
| 15 | #include <babeltrace2/logging.h> |
| 16 | #include "common/assert.h" |
| 17 | #include <glib.h> |
| 18 | #include <stdbool.h> |
| 19 | |
| 20 | #include "component-class.h" |
| 21 | #include "port.h" |
| 22 | |
| 23 | typedef void (*bt_component_destroy_listener_func)( |
| 24 | struct bt_component *class, void *data); |
| 25 | |
| 26 | struct bt_component_destroy_listener { |
| 27 | bt_component_destroy_listener_func func; |
| 28 | void *data; |
| 29 | }; |
| 30 | |
| 31 | struct bt_graph; |
| 32 | |
| 33 | struct bt_component { |
| 34 | struct bt_object base; |
| 35 | struct bt_component_class *class; |
| 36 | GString *name; |
| 37 | bt_logging_level log_level; |
| 38 | |
| 39 | /* User-defined data */ |
| 40 | void *user_data; |
| 41 | |
| 42 | /* Input and output ports (weak references) */ |
| 43 | GPtrArray *input_ports; |
| 44 | GPtrArray *output_ports; |
| 45 | |
| 46 | /* Array of struct bt_component_destroy_listener */ |
| 47 | GArray *destroy_listeners; |
| 48 | |
| 49 | bool initialized; |
| 50 | }; |
| 51 | |
| 52 | static inline |
| 53 | struct bt_graph *bt_component_borrow_graph(struct bt_component *comp) |
| 54 | { |
| 55 | BT_ASSERT_DBG(comp); |
| 56 | return (void *) bt_object_borrow_parent(&comp->base); |
| 57 | } |
| 58 | |
| 59 | int bt_component_create(struct bt_component_class *component_class, |
| 60 | const char *name, bt_logging_level log_level, |
| 61 | struct bt_component **component); |
| 62 | |
| 63 | enum bt_component_class_port_connected_method_status |
| 64 | bt_component_port_connected( |
| 65 | struct bt_component *comp, |
| 66 | struct bt_port *self_port, struct bt_port *other_port); |
| 67 | |
| 68 | void bt_component_set_graph(struct bt_component *component, |
| 69 | struct bt_graph *graph); |
| 70 | |
| 71 | uint64_t bt_component_get_input_port_count(const struct bt_component *comp, |
| 72 | const char *api_func); |
| 73 | |
| 74 | uint64_t bt_component_get_output_port_count(const struct bt_component *comp, |
| 75 | const char *api_func); |
| 76 | |
| 77 | struct bt_port_input *bt_component_borrow_input_port_by_index( |
| 78 | struct bt_component *comp, uint64_t index, |
| 79 | const char *api_func); |
| 80 | |
| 81 | struct bt_port_output *bt_component_borrow_output_port_by_index( |
| 82 | struct bt_component *comp, uint64_t index, |
| 83 | const char *api_func); |
| 84 | |
| 85 | struct bt_port_input *bt_component_borrow_input_port_by_name( |
| 86 | struct bt_component *comp, const char *name, |
| 87 | const char *api_func); |
| 88 | |
| 89 | struct bt_port_output *bt_component_borrow_output_port_by_name( |
| 90 | struct bt_component *comp, const char *name, |
| 91 | const char *api_func); |
| 92 | |
| 93 | enum bt_self_component_add_port_status bt_component_add_input_port( |
| 94 | struct bt_component *component, const char *name, |
| 95 | void *user_data, struct bt_port **port, |
| 96 | const char *api_func); |
| 97 | |
| 98 | enum bt_self_component_add_port_status bt_component_add_output_port( |
| 99 | struct bt_component *component, const char *name, |
| 100 | void *user_data, struct bt_port **port, |
| 101 | const char *api_func); |
| 102 | |
| 103 | void bt_component_remove_port(struct bt_component *component, |
| 104 | struct bt_port *port); |
| 105 | |
| 106 | void bt_component_add_destroy_listener(struct bt_component *component, |
| 107 | bt_component_destroy_listener_func func, void *data); |
| 108 | |
| 109 | void bt_component_remove_destroy_listener(struct bt_component *component, |
| 110 | bt_component_destroy_listener_func func, void *data); |
| 111 | |
| 112 | #endif /* BABELTRACE_LIB_GRAPH_COMPONENT_H */ |