lib/graph/component-source.c

   1 /*
   2  * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  */
  24
  25 #define BT_LOG_TAG "COMP-SOURCE"
  26 #include <babeltrace/lib-logging-internal.h>
  27
  28 #include <babeltrace/object.h>
  29 #include <babeltrace/compiler-internal.h>
  30 #include <babeltrace/graph/self-component-source.h>
  31 #include <babeltrace/graph/component-source-const.h>
  32 #include <babeltrace/graph/component-source-internal.h>
  33 #include <babeltrace/graph/component-internal.h>
  34 #include <babeltrace/graph/port-internal.h>
  35 #include <babeltrace/graph/notification-iterator.h>
  36 #include <babeltrace/graph/notification-iterator-internal.h>
  37 #include <babeltrace/graph/graph.h>
  38 #include <babeltrace/assert-internal.h>
  39 #include <babeltrace/assert-pre-internal.h>
  40
  41 BT_HIDDEN
  42 void bt_component_source_destroy(struct bt_component *component)
  43 {
  44 }
  45
  46 BT_HIDDEN
  47 struct bt_component *bt_component_source_create(
  48                 const struct bt_component_class *class)
  49 {
  50         struct bt_component_source *source = NULL;
  51
  52         source = g_new0(struct bt_component_source, 1);
  53         if (!source) {
  54                 BT_LOGE_STR("Failed to allocate one source component.");
  55                 goto end;
  56         }
  57
  58 end:
  59         return (void *) source;
  60 }
  61
  62 uint64_t bt_component_source_get_output_port_count(
  63                 const struct bt_component_source *comp)
  64 {
  65         return bt_component_get_output_port_count((void *) comp);
  66 }
  67
  68 const struct bt_port_output *
  69 bt_component_source_borrow_output_port_by_name_const(
  70                 const struct bt_component_source *comp, const char *name)
  71 {
  72         return bt_component_borrow_output_port_by_name((void *) comp, name);
  73 }
  74
  75 struct bt_self_component_port_output *
  76 bt_self_component_source_borrow_output_port_by_name(
  77                 struct bt_self_component_source *comp, const char *name)
  78 {
  79         return (void *) bt_component_borrow_output_port_by_name(
  80                 (void *) comp, name);
  81 }
  82
  83 const struct bt_port_output *
  84 bt_component_source_borrow_output_port_by_index_const(
  85                 const struct bt_component_source *comp, uint64_t index)
  86 {
  87         return bt_component_borrow_output_port_by_index((void *) comp, index);
  88 }
  89
  90 struct bt_self_component_port_output *
  91 bt_self_component_source_borrow_output_port_by_index(
  92                 struct bt_self_component_source *comp, uint64_t index)
  93 {
  94         return (void *) bt_component_borrow_output_port_by_index(
  95                 (void *) comp, index);
  96 }
  97
  98 enum bt_self_component_status bt_self_component_source_add_output_port(
  99                 struct bt_self_component_source *self_comp,
 100                 const char *name, void *user_data,
 101                 struct bt_self_component_port_output **self_port)
 102 {
 103         struct bt_component *comp = (void *) self_comp;
 104         int status = BT_SELF_COMPONENT_STATUS_OK;
 105         struct bt_port *port = NULL;
 106
 107         /* bt_component_add_output_port() logs details and errors */
 108         port = (void *) bt_component_add_output_port(comp, name, user_data);
 109         if (!port) {
 110                 status = BT_SELF_COMPONENT_STATUS_NOMEM;
 111                 goto end;
 112         }
 113
 114         if (self_port) {
 115                 /* Move reference to user */
 116                 *self_port = (void *) port;
 117                 port = NULL;
 118         }
 119
 120 end:
 121         bt_object_put_ref(port);
 122         return status;
 123 }