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

   1 #ifndef BABELTRACE2_GRAPH_COMPONENT_CLASS_SOURCE_CONST_H
   2 #define BABELTRACE2_GRAPH_COMPONENT_CLASS_SOURCE_CONST_H
   3
   4 /*
   5  * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
   6  * Copyright 2016 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 #ifndef __BT_IN_BABELTRACE_H
  28 # error "Please include <babeltrace2/babeltrace.h> instead."
  29 #endif
  30
  31 /*
  32  * For bt_component_class, bt_component_class_source,
  33  * __BT_UPCAST_CONST
  34  */
  35 #include <babeltrace2/types.h>
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 static inline
  42 const bt_component_class *
  43 bt_component_class_source_as_component_class_const(
  44                 const bt_component_class_source *comp_cls_source)
  45 {
  46         return __BT_UPCAST_CONST(bt_component_class, comp_cls_source);
  47 }
  48
  49 extern void bt_component_class_source_get_ref(
  50                 const bt_component_class_source *component_class_source);
  51
  52 extern void bt_component_class_source_put_ref(
  53                 const bt_component_class_source *component_class_source);
  54
  55 #define BT_COMPONENT_CLASS_SOURCE_PUT_REF_AND_RESET(_var)       \
  56         do {                                                    \
  57                 bt_component_class_source_put_ref(_var);        \
  58                 (_var) = NULL;                                  \
  59         } while (0)
  60
  61 #define BT_COMPONENT_CLASS_SOURCE_MOVE_REF(_var_dst, _var_src)  \
  62         do {                                                    \
  63                 bt_component_class_source_put_ref(_var_dst);    \
  64                 (_var_dst) = (_var_src);                        \
  65                 (_var_src) = NULL;                              \
  66         } while (0)
  67
  68 #ifdef __cplusplus
  69 }
  70 #endif
  71
  72 #endif /* BABELTRACE2_GRAPH_COMPONENT_CLASS_SOURCE_CONST_H */