lib/graph/component-source.c

   1 /*
   2  * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
   3  * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a copy
   6  * of this software and associated documentation files (the "Software"), to deal
   7  * in the Software without restriction, including without limitation the rights
   8  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9  * copies of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  */
  23
  24 #define BT_LOG_TAG "COMP-SOURCE"
  25 #include <babeltrace/lib-logging-internal.h>
  26
  27 #include <babeltrace/assert-internal.h>
  28 #include <babeltrace/assert-pre-internal.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/message-iterator-const.h>
  36 #include <babeltrace/graph/message-iterator-internal.h>
  37 #include <babeltrace/graph/graph.h>
  38
  39 BT_HIDDEN
  40 void bt_component_source_destroy(struct bt_component *component)
  41 {
  42 }
  43
  44 BT_HIDDEN
  45 struct bt_component *bt_component_source_create(
  46                 const struct bt_component_class *class)
  47 {
  48         struct bt_component_source *source = NULL;
  49
  50         source = g_new0(struct bt_component_source, 1);
  51         if (!source) {
  52                 BT_LOGE_STR("Failed to allocate one source component.");
  53                 goto end;
  54         }
  55
  56 end:
  57         return (void *) source;
  58 }
  59
  60 uint64_t bt_component_source_get_output_port_count(
  61                 const struct bt_component_source *comp)
  62 {
  63         return bt_component_get_output_port_count((void *) comp);
  64 }
  65
  66 const struct bt_port_output *
  67 bt_component_source_borrow_output_port_by_name_const(
  68                 const struct bt_component_source *comp, const char *name)
  69 {
  70         return bt_component_borrow_output_port_by_name((void *) comp, name);
  71 }
  72
  73 struct bt_self_component_port_output *
  74 bt_self_component_source_borrow_output_port_by_name(
  75                 struct bt_self_component_source *comp, const char *name)
  76 {
  77         return (void *) bt_component_borrow_output_port_by_name(
  78                 (void *) comp, name);
  79 }
  80
  81 const struct bt_port_output *
  82 bt_component_source_borrow_output_port_by_index_const(
  83                 const struct bt_component_source *comp, uint64_t index)
  84 {
  85         return bt_component_borrow_output_port_by_index((void *) comp, index);
  86 }
  87
  88 struct bt_self_component_port_output *
  89 bt_self_component_source_borrow_output_port_by_index(
  90                 struct bt_self_component_source *comp, uint64_t index)
  91 {
  92         return (void *) bt_component_borrow_output_port_by_index(
  93                 (void *) comp, index);
  94 }
  95
  96 enum bt_self_component_status bt_self_component_source_add_output_port(
  97                 struct bt_self_component_source *self_comp,
  98                 const char *name, void *user_data,
  99                 struct bt_self_component_port_output **self_port)
 100 {
 101         struct bt_component *comp = (void *) self_comp;
 102         int status = BT_SELF_COMPONENT_STATUS_OK;
 103         struct bt_port *port = NULL;
 104
 105         /* bt_component_add_output_port() logs details and errors */
 106         port = (void *) bt_component_add_output_port(comp, name, user_data);
 107         if (!port) {
 108                 status = BT_SELF_COMPONENT_STATUS_NOMEM;
 109                 goto end;
 110         }
 111
 112         if (self_port) {
 113                 /* Move reference to user */
 114                 *self_port = (void *) port;
 115                 port = NULL;
 116         }
 117
 118 end:
 119         bt_object_put_ref(port);
 120         return status;
 121 }
 122
 123 void bt_component_source_get_ref(
 124                 const struct bt_component_source *component_source)
 125 {
 126         bt_object_get_ref(component_source);
 127 }
 128
 129 void bt_component_source_put_ref(
 130                 const struct bt_component_source *component_source)
 131 {
 132         bt_object_put_ref(component_source);
 133 }