include/babeltrace/graph/component-sink-const.h

   1 #ifndef BABELTRACE_GRAPH_COMPONENT_SINK_CONST_H
   2 #define BABELTRACE_GRAPH_COMPONENT_SINK_CONST_H
   3
   4 /*
   5  * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
   6  * Copyright 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a copy
   9  * of this software and associated documentation files (the "Software"), to deal
  10  * in the Software without restriction, including without limitation the rights
  11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the Software is
  13  * furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  24  * SOFTWARE.
  25  */
  26
  27 #include <stdint.h>
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 struct bt_component;
  34 struct bt_component_sink;
  35 struct bt_port_input;
  36
  37 static inline
  38 const struct bt_component *bt_component_sink_as_component_const(
  39                 const struct bt_component_sink *component)
  40 {
  41         return (const void *) component;
  42 }
  43
  44 extern uint64_t bt_component_sink_get_input_port_count(
  45                 const struct bt_component_sink *component);
  46
  47 extern const struct bt_port_input *
  48 bt_component_sink_borrow_input_port_by_name_const(
  49                 const struct bt_component_sink *component, const char *name);
  50
  51 extern const struct bt_port_input *
  52 bt_component_sink_borrow_input_port_by_index_const(
  53                 const struct bt_component_sink *component, uint64_t index);
  54
  55 extern void bt_component_sink_get_ref(
  56                 const struct bt_component_sink *component_sink);
  57
  58 extern void bt_component_sink_put_ref(
  59                 const struct bt_component_sink *component_sink);
  60
  61 #define BT_COMPONENT_SINK_PUT_REF_AND_RESET(_var)               \
  62         do {                                                    \
  63                 bt_component_sink_put_ref(_var);                \
  64                 (_var) = NULL;                                  \
  65         } while (0)
  66
  67 #define BT_COMPONENT_SINK_MOVE_REF(_var_dst, _var_src)          \
  68         do {                                                    \
  69                 bt_component_sink_put_ref(_var_dst);            \
  70                 (_var_dst) = (_var_src);                        \
  71                 (_var_src) = NULL;                              \
  72         } while (0)
  73
  74 #ifdef __cplusplus
  75 }
  76 #endif
  77
  78 #endif /* BABELTRACE_GRAPH_COMPONENT_SINK_CONST_H */