include/babeltrace2/graph/component-class-sink-const.h

   1 #ifndef BABELTRACE2_GRAPH_COMPONENT_CLASS_SINK_CONST_H
   2 #define BABELTRACE2_GRAPH_COMPONENT_CLASS_SINK_CONST_H
   3
   4 /*
   5  * Copyright (c) 2010-2019 EfficiOS Inc. and Linux Foundation
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #ifndef __BT_IN_BABELTRACE_H
  27 # error "Please include <babeltrace2/babeltrace.h> instead."
  28 #endif
  29
  30 #include <babeltrace2/types.h>
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 static inline
  37 const bt_component_class *
  38 bt_component_class_sink_as_component_class_const(
  39                 const bt_component_class_sink *comp_cls_sink)
  40 {
  41         return __BT_UPCAST_CONST(bt_component_class, comp_cls_sink);
  42 }
  43
  44 extern void bt_component_class_sink_get_ref(
  45                 const bt_component_class_sink *component_class_sink);
  46
  47 extern void bt_component_class_sink_put_ref(
  48                 const bt_component_class_sink *component_class_sink);
  49
  50 #define BT_COMPONENT_CLASS_SINK_PUT_REF_AND_RESET(_var)         \
  51         do {                                                    \
  52                 bt_component_class_sink_put_ref(_var);          \
  53                 (_var) = NULL;                                  \
  54         } while (0)
  55
  56 #define BT_COMPONENT_CLASS_SINK_MOVE_REF(_var_dst, _var_src)    \
  57         do {                                                    \
  58                 bt_component_class_sink_put_ref(_var_dst);      \
  59                 (_var_dst) = (_var_src);                        \
  60                 (_var_src) = NULL;                              \
  61         } while (0)
  62
  63 #ifdef __cplusplus
  64 }
  65 #endif
  66
  67 #endif /* BABELTRACE2_GRAPH_COMPONENT_CLASS_SINK_CONST_H */