plugins/sink.c

   1 /*
   2  * sink.c
   3  *
   4  * Babeltrace Sink 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/sink-internal.h>
  31 #include <babeltrace/plugin/component-internal.h>
  32
  33 static
  34 void bt_component_sink_destroy(struct bt_component *component)
  35 {
  36         struct bt_component_sink *sink;
  37
  38         if (!component) {
  39                 return;
  40         }
  41
  42         sink = container_of(component, struct bt_component_sink, parent);
  43         g_free(sink);
  44 }
  45
  46 BT_HIDDEN
  47 struct bt_component *bt_component_sink_create(
  48                 struct bt_component_class *class, const char *name)
  49 {
  50         struct bt_component_sink *sink = NULL;
  51         enum bt_component_status ret;
  52
  53         sink = g_new0(struct bt_component_sink, 1);
  54         if (!sink) {
  55                 goto end;
  56         }
  57
  58         ret = bt_component_init(&sink->parent, class, name,
  59                 bt_component_sink_destroy);
  60         if (ret != BT_COMPONENT_STATUS_OK) {
  61                 g_free(sink);
  62                 sink = NULL;
  63                 goto end;
  64         }
  65 end:
  66         return sink ? &sink->parent : NULL;
  67 }
  68
  69 enum bt_component_status bt_component_sink_handle_notification(
  70                 struct bt_component *component,
  71                 struct bt_notification *notification)
  72 {
  73         enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
  74         struct bt_component_sink *sink = NULL;
  75
  76         if (!component || !notification) {
  77                 ret = BT_COMPONENT_STATUS_INVAL;
  78                 goto end;
  79         }
  80
  81         if (bt_component_get_type(component) != BT_COMPONENT_TYPE_SINK) {
  82                 ret = BT_COMPONENT_STATUS_UNSUPPORTED;
  83                 goto end;
  84         }
  85
  86         sink = container_of(component, struct bt_component_sink, parent);
  87         assert(sink->handle_notification);
  88         ret = sink->handle_notification(component, notification);
  89 end:
  90         return ret;
  91 }