plugins/source.c

   1 /*
   2  * source.c
   3  *
   4  * Babeltrace Source Component
   5  *
   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 <babeltrace/compiler.h>
  30 #include <babeltrace/plugin/source-internal.h>
  31 #include <babeltrace/plugin/component-internal.h>
  32
  33 static
  34 void bt_component_source_destroy(struct bt_component *component)
  35 {
  36         struct bt_component_source *source;
  37
  38         if (!component) {
  39                 return;
  40         }
  41
  42         source = container_of(component, struct bt_component_source, parent);
  43         g_free(source);
  44 }
  45
  46 struct bt_component *bt_component_source_create(const char *name,
  47                 void *private_data, bt_component_destroy_cb destroy_func,
  48                 bt_component_source_iterator_create_cb iterator_create_cb)
  49 {
  50         struct bt_component_source *source = NULL;
  51         enum bt_component_status ret;
  52
  53         if (!iterator_create_cb) {
  54                 goto end;
  55         }
  56
  57         source = g_new0(struct bt_component_source, 1);
  58         if (!source) {
  59                 goto end;
  60         }
  61
  62         ret = bt_component_init(&source->parent, name, private_data,
  63                 destroy_func, BT_COMPONENT_TYPE_SOURCE,
  64                 bt_component_source_destroy);
  65         if (ret != BT_COMPONENT_STATUS_OK) {
  66                 g_free(source);
  67                 source = NULL;
  68                 goto end;
  69         }
  70
  71         source->create_iterator = iterator_create_cb;
  72 end:
  73         return source ? &source->parent : NULL;
  74 }