include/babeltrace2/graph/graph-const.h

   1 #ifndef BABELTRACE2_GRAPH_GRAPH_CONST_H
   2 #define BABELTRACE2_GRAPH_GRAPH_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 extern void bt_graph_get_ref(const bt_graph *graph);
  37
  38 extern void bt_graph_put_ref(const bt_graph *graph);
  39
  40 #define BT_GRAPH_PUT_REF_AND_RESET(_var)        \
  41         do {                                    \
  42                 bt_graph_put_ref(_var);         \
  43                 (_var) = NULL;                  \
  44         } while (0)
  45
  46 #define BT_GRAPH_MOVE_REF(_var_dst, _var_src)   \
  47         do {                                    \
  48                 bt_graph_put_ref(_var_dst);     \
  49                 (_var_dst) = (_var_src);        \
  50                 (_var_src) = NULL;              \
  51         } while (0)
  52
  53 #ifdef __cplusplus
  54 }
  55 #endif
  56
  57 #endif /* BABELTRACE2_GRAPH_GRAPH_CONST_H */