src/lib/graph/component-sink.c

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
   5  * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   6  */
   7
   8 #define BT_LOG_TAG "LIB/COMPONENT-SINK"
   9 #include "lib/logging.h"
  10
  11 #include "common/assert.h"
  12 #include "lib/assert-cond.h"
  13 #include "compat/compiler.h"
  14 #include <babeltrace2/value.h>
  15 #include <babeltrace2/graph/self-component.h>
  16 #include <babeltrace2/graph/component.h>
  17 #include <babeltrace2/graph/graph.h>
  18
  19 #include "component-sink.h"
  20 #include "component.h"
  21 #include "graph.h"
  22 #include "lib/func-status.h"
  23
  24 void bt_component_sink_destroy(struct bt_component *component)
  25 {
  26 }
  27
  28 struct bt_component *bt_component_sink_create(
  29                 const struct bt_component_class *class)
  30 {
  31         struct bt_component_sink *sink = NULL;
  32
  33         sink = g_new0(struct bt_component_sink, 1);
  34         if (!sink) {
  35                 BT_LIB_LOGE_APPEND_CAUSE(
  36                         "Failed to allocate one sink component.");
  37                 goto end;
  38         }
  39
  40 end:
  41         return (void *) sink;
  42 }
  43
  44 BT_EXPORT
  45 const bt_component_class_sink *
  46 bt_component_sink_borrow_class_const(
  47                 const bt_component_sink *component)
  48 {
  49         struct bt_component_class *cls;
  50
  51         BT_ASSERT_PRE_DEV_COMP_NON_NULL(component);
  52
  53         cls = component->parent.class;
  54
  55         BT_ASSERT_DBG(cls);
  56         BT_ASSERT_DBG(cls->type == BT_COMPONENT_CLASS_TYPE_SINK);
  57
  58         return (bt_component_class_sink *) cls;
  59 }
  60
  61 BT_EXPORT
  62 uint64_t bt_component_sink_get_input_port_count(
  63                 const struct bt_component_sink *component)
  64 {
  65         /* bt_component_get_input_port_count() checks preconditions */
  66         return bt_component_get_input_port_count((void *) component, __func__);
  67 }
  68
  69 BT_EXPORT
  70 const struct bt_port_input *
  71 bt_component_sink_borrow_input_port_by_name_const(
  72                 const struct bt_component_sink *component, const char *name)
  73 {
  74         /*
  75          * bt_component_borrow_input_port_by_name() logs details/errors
  76          * and checks preconditions.
  77          */
  78         return bt_component_borrow_input_port_by_name((void *) component, name,
  79                 __func__);
  80 }
  81
  82 BT_EXPORT
  83 struct bt_self_component_port_input *
  84 bt_self_component_sink_borrow_input_port_by_name(
  85                 struct bt_self_component_sink *component, const char *name)
  86 {
  87         /*
  88          * bt_component_borrow_input_port_by_name() logs details/errors
  89          * and checks preconditions.
  90          */
  91         return (void *) bt_component_borrow_input_port_by_name(
  92                 (void *) component, name, __func__);
  93 }
  94
  95 BT_EXPORT
  96 const struct bt_port_input *bt_component_sink_borrow_input_port_by_index_const(
  97                 const struct bt_component_sink *component, uint64_t index)
  98 {
  99         /*
 100          * bt_component_borrow_input_port_by_index() logs details/errors
 101          * and checks preconditions.
 102          */
 103         return bt_component_borrow_input_port_by_index(
 104                 (void *) component, index, __func__);
 105 }
 106
 107 BT_EXPORT
 108 struct bt_self_component_port_input *
 109 bt_self_component_sink_borrow_input_port_by_index(
 110                 struct bt_self_component_sink *component, uint64_t index)
 111 {
 112         /*
 113          * bt_component_borrow_input_port_by_index() logs details/errors
 114          * and checks preconditions.
 115          */
 116         return (void *) bt_component_borrow_input_port_by_index(
 117                 (void *) component, index, __func__);
 118 }
 119
 120 BT_EXPORT
 121 enum bt_self_component_add_port_status bt_self_component_sink_add_input_port(
 122                 struct bt_self_component_sink *self_comp,
 123                 const char *name, void *user_data,
 124                 struct bt_self_component_port_input **self_port)
 125 {
 126         enum bt_self_component_add_port_status status;
 127         struct bt_port *port = NULL;
 128         struct bt_component *comp = (void *) self_comp;
 129
 130         /*
 131          * bt_component_add_input_port() logs details/errors and checks
 132          * preconditions.
 133          */
 134         status = bt_component_add_input_port(comp, name, user_data, &port,
 135                 __func__);
 136         if (status != BT_FUNC_STATUS_OK) {
 137                 goto end;
 138         }
 139
 140         if (self_port) {
 141                 /* Move reference to user */
 142                 *self_port = (void *) port;
 143         }
 144
 145 end:
 146         bt_object_put_ref(port);
 147         return status;
 148 }
 149
 150 BT_EXPORT
 151 bt_bool bt_self_component_sink_is_interrupted(
 152                 const struct bt_self_component_sink *self_comp)
 153 {
 154         struct bt_component *comp = (void *) self_comp;
 155
 156         BT_ASSERT_PRE_COMP_NON_NULL(comp);
 157         return (bt_bool) bt_graph_is_interrupted(
 158                 bt_component_borrow_graph(comp));
 159 }
 160
 161 BT_EXPORT
 162 void bt_component_sink_get_ref(
 163                 const struct bt_component_sink *component_sink)
 164 {
 165         bt_object_get_ref(component_sink);
 166 }
 167
 168 BT_EXPORT
 169 void bt_component_sink_put_ref(
 170                 const struct bt_component_sink *component_sink)
 171 {
 172         bt_object_put_ref(component_sink);
 173 }