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 /*
  30  * For bt_component, bt_component_filter, bt_port_input,
  31  * __BT_UPCAST_CONST
  32  */
  33 #include <babeltrace/types.h>
  34
  35 #ifdef __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 static inline
  40 const bt_component *bt_component_sink_as_component_const(
  41                 const bt_component_sink *component)
  42 {
  43         return __BT_UPCAST_CONST(bt_component, component);
  44 }
  45
  46 extern uint64_t bt_component_sink_get_input_port_count(
  47                 const bt_component_sink *component);
  48
  49 extern const bt_port_input *
  50 bt_component_sink_borrow_input_port_by_name_const(
  51                 const bt_component_sink *component, const char *name);
  52
  53 extern const bt_port_input *
  54 bt_component_sink_borrow_input_port_by_index_const(
  55                 const bt_component_sink *component, uint64_t index);
  56
  57 extern void bt_component_sink_get_ref(
  58                 const bt_component_sink *component_sink);
  59
  60 extern void bt_component_sink_put_ref(
  61                 const bt_component_sink *component_sink);
  62
  63 #define BT_COMPONENT_SINK_PUT_REF_AND_RESET(_var)               \
  64         do {                                                    \
  65                 bt_component_sink_put_ref(_var);                \
  66                 (_var) = NULL;                                  \
  67         } while (0)
  68
  69 #define BT_COMPONENT_SINK_MOVE_REF(_var_dst, _var_src)          \
  70         do {                                                    \
  71                 bt_component_sink_put_ref(_var_dst);            \
  72                 (_var_dst) = (_var_src);                        \
  73                 (_var_src) = NULL;                              \
  74         } while (0)
  75
  76 #ifdef __cplusplus
  77 }
  78 #endif
  79
  80 #endif /* BABELTRACE_GRAPH_COMPONENT_SINK_CONST_H */