src/lib/graph/component-class.h

   1 #ifndef BABELTRACE_GRAPH_COMPONENT_CLASS_INTERNAL_H
   2 #define BABELTRACE_GRAPH_COMPONENT_CLASS_INTERNAL_H
   3
   4 /*
   5  * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
   6  * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   7  *
   8  * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
   9  *
  10  * Permission is hereby granted, free of charge, to any person obtaining a copy
  11  * of this software and associated documentation files (the "Software"), to deal
  12  * in the Software without restriction, including without limitation the rights
  13  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  14  * copies of the Software, and to permit persons to whom the Software is
  15  * furnished to do so, subject to the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be included in
  18  * all copies or substantial portions of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  23  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  25  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  26  * SOFTWARE.
  27  */
  28
  29 #include <babeltrace2/graph/component-const.h>
  30 #include <babeltrace2/graph/component-class.h>
  31 #include <babeltrace2/graph/component-class-source.h>
  32 #include <babeltrace2/graph/component-class-filter.h>
  33 #include <babeltrace2/graph/component-class-sink.h>
  34 #include "common/babeltrace.h"
  35 #include "lib/object.h"
  36 #include "common/list.h"
  37 #include <babeltrace2/types.h>
  38 #include <glib.h>
  39
  40 struct bt_component_class;
  41 struct bt_plugin_so_shared_lib_handle;
  42
  43 typedef void (*bt_component_class_destroy_listener_func)(
  44                 struct bt_component_class *class, void *data);
  45
  46 struct bt_component_class_destroy_listener {
  47         bt_component_class_destroy_listener_func func;
  48         void *data;
  49 };
  50
  51 struct bt_component_class {
  52         struct bt_object base;
  53         enum bt_component_class_type type;
  54         GString *name;
  55         GString *description;
  56         GString *help;
  57
  58         /* Array of struct bt_component_class_destroy_listener */
  59         GArray *destroy_listeners;
  60         bool frozen;
  61         struct bt_list_head node;
  62         struct bt_plugin_so_shared_lib_handle *so_handle;
  63 };
  64
  65 struct bt_component_class_source {
  66         struct bt_component_class parent;
  67         struct {
  68                 bt_component_class_source_init_method init;
  69                 bt_component_class_source_finalize_method finalize;
  70                 bt_component_class_source_message_iterator_init_method msg_iter_init;
  71                 bt_component_class_source_message_iterator_finalize_method msg_iter_finalize;
  72                 bt_component_class_source_message_iterator_next_method msg_iter_next;
  73                 bt_component_class_source_message_iterator_seek_ns_from_origin_method msg_iter_seek_ns_from_origin;
  74                 bt_component_class_source_message_iterator_seek_beginning_method msg_iter_seek_beginning;
  75                 bt_component_class_source_message_iterator_can_seek_ns_from_origin_method msg_iter_can_seek_ns_from_origin;
  76                 bt_component_class_source_message_iterator_can_seek_beginning_method msg_iter_can_seek_beginning;
  77                 bt_component_class_source_query_method query;
  78                 bt_component_class_source_accept_output_port_connection_method accept_output_port_connection;
  79                 bt_component_class_source_output_port_connected_method output_port_connected;
  80         } methods;
  81 };
  82
  83 struct bt_component_class_sink {
  84         struct bt_component_class parent;
  85         struct {
  86                 bt_component_class_sink_init_method init;
  87                 bt_component_class_sink_finalize_method finalize;
  88                 bt_component_class_sink_query_method query;
  89                 bt_component_class_sink_accept_input_port_connection_method accept_input_port_connection;
  90                 bt_component_class_sink_input_port_connected_method input_port_connected;
  91                 bt_component_class_sink_graph_is_configured_method graph_is_configured;
  92                 bt_component_class_sink_consume_method consume;
  93         } methods;
  94 };
  95
  96 struct bt_component_class_filter {
  97         struct bt_component_class parent;
  98         struct {
  99                 bt_component_class_filter_init_method init;
 100                 bt_component_class_filter_finalize_method finalize;
 101                 bt_component_class_filter_message_iterator_init_method msg_iter_init;
 102                 bt_component_class_filter_message_iterator_finalize_method msg_iter_finalize;
 103                 bt_component_class_filter_message_iterator_next_method msg_iter_next;
 104                 bt_component_class_filter_message_iterator_seek_ns_from_origin_method msg_iter_seek_ns_from_origin;
 105                 bt_component_class_filter_message_iterator_seek_beginning_method msg_iter_seek_beginning;
 106                 bt_component_class_filter_message_iterator_can_seek_ns_from_origin_method msg_iter_can_seek_ns_from_origin;
 107                 bt_component_class_filter_message_iterator_can_seek_beginning_method msg_iter_can_seek_beginning;
 108                 bt_component_class_filter_query_method query;
 109                 bt_component_class_filter_accept_input_port_connection_method accept_input_port_connection;
 110                 bt_component_class_filter_accept_output_port_connection_method accept_output_port_connection;
 111                 bt_component_class_filter_input_port_connected_method input_port_connected;
 112                 bt_component_class_filter_output_port_connected_method output_port_connected;
 113         } methods;
 114 };
 115
 116 BT_HIDDEN
 117 void bt_component_class_add_destroy_listener(struct bt_component_class *class,
 118                 bt_component_class_destroy_listener_func func, void *data);
 119
 120 BT_HIDDEN
 121 void _bt_component_class_freeze(
 122                 const struct bt_component_class *component_class);
 123
 124 #ifdef BT_DEV_MODE
 125 # define bt_component_class_freeze      _bt_component_class_freeze
 126 #else
 127 # define bt_component_class_freeze(_cc)
 128 #endif
 129
 130 static inline
 131 const char *bt_component_class_type_string(enum bt_component_class_type type)
 132 {
 133         switch (type) {
 134         case BT_COMPONENT_CLASS_TYPE_SOURCE:
 135                 return "BT_COMPONENT_CLASS_TYPE_SOURCE";
 136         case BT_COMPONENT_CLASS_TYPE_SINK:
 137                 return "BT_COMPONENT_CLASS_TYPE_SINK";
 138         case BT_COMPONENT_CLASS_TYPE_FILTER:
 139                 return "BT_COMPONENT_CLASS_TYPE_FILTER";
 140         default:
 141                 return "(unknown)";
 142         }
 143 }
 144
 145 #endif /* BABELTRACE_GRAPH_COMPONENT_CLASS_INTERNAL_H */