lib/graph/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/ref.h>
  30 #include <babeltrace/compiler-internal.h>
  31 #include <babeltrace/graph/component-source-internal.h>
  32 #include <babeltrace/graph/component-internal.h>
  33 #include <babeltrace/graph/port-internal.h>
  34 #include <babeltrace/graph/notification-iterator.h>
  35 #include <babeltrace/graph/notification-iterator-internal.h>
  36
  37 BT_HIDDEN
  38 void bt_component_source_destroy(struct bt_component *component)
  39 {
  40 }
  41
  42 BT_HIDDEN
  43 struct bt_component *bt_component_source_create(
  44                 struct bt_component_class *class, struct bt_value *params)
  45 {
  46         struct bt_component_source *source = NULL;
  47
  48         source = g_new0(struct bt_component_source, 1);
  49         if (!source) {
  50                 goto end;
  51         }
  52
  53 end:
  54         return source ? &source->parent : NULL;
  55 }
  56
  57 int64_t bt_component_source_get_output_port_count(
  58                 struct bt_component *component, uint64_t *count)
  59 {
  60         int64_t ret;
  61
  62         if (!component || !count ||
  63                         component->class->type != BT_COMPONENT_CLASS_TYPE_SOURCE) {
  64                 ret = (int64_t) -1;
  65                 goto end;
  66         }
  67
  68         ret = bt_component_get_output_port_count(component);
  69 end:
  70         return ret;
  71 }
  72
  73 struct bt_port *bt_component_source_get_output_port_by_name(
  74                 struct bt_component *component, const char *name)
  75 {
  76         struct bt_port *port = NULL;
  77
  78         if (!component || !name ||
  79                         component->class->type != BT_COMPONENT_CLASS_TYPE_SOURCE) {
  80                 goto end;
  81         }
  82
  83         port = bt_component_get_output_port_by_name(component, name);
  84 end:
  85         return port;
  86 }
  87
  88 struct bt_port *bt_component_source_get_output_port_by_index(
  89                 struct bt_component *component, uint64_t index)
  90 {
  91         struct bt_port *port = NULL;
  92
  93         if (!component ||
  94                         component->class->type != BT_COMPONENT_CLASS_TYPE_SOURCE) {
  95                 goto end;
  96         }
  97
  98         port = bt_component_get_output_port_by_index(component, index);
  99 end:
 100         return port;
 101 }
 102
 103 struct bt_private_port *
 104 bt_private_component_source_get_output_private_port_by_name(
 105                 struct bt_private_component *private_component,
 106                 const char *name)
 107 {
 108         return bt_private_port_from_port(
 109                 bt_component_source_get_output_port_by_name(
 110                         bt_component_from_private(private_component), name));
 111 }
 112
 113 struct bt_private_port *
 114 bt_private_component_source_get_output_private_port_by_index(
 115                 struct bt_private_component *private_component, uint64_t index)
 116 {
 117         return bt_private_port_from_port(
 118                 bt_component_source_get_output_port_by_index(
 119                         bt_component_from_private(private_component), index));
 120 }
 121
 122 struct bt_private_port *bt_private_component_source_add_output_private_port(
 123                 struct bt_private_component *private_component,
 124                 const char *name, void *user_data)
 125 {
 126         struct bt_port *port = NULL;
 127         struct bt_component *component =
 128                 bt_component_from_private(private_component);
 129
 130         if (!component ||
 131                         component->class->type != BT_COMPONENT_CLASS_TYPE_SOURCE) {
 132                 goto end;
 133         }
 134
 135         port = bt_component_add_output_port(component, name, user_data);
 136 end:
 137         return bt_private_port_from_port(port);
 138 }