include/babeltrace/graph/port-output-const.h

   1 #ifndef BABELTRACE_GRAPH_PORT_OUTPUT_CONST_H
   2 #define BABELTRACE_GRAPH_PORT_OUTPUT_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 /* For bt_port, bt_port_output */
  28 #include <babeltrace/types.h>
  29
  30 #include <stdint.h>
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 static inline
  37 const bt_port *bt_port_output_as_port_const(
  38                 const bt_port_output *port_output)
  39 {
  40         return (const void *) port_output;
  41 }
  42
  43 extern void bt_port_output_get_ref(const bt_port_output *port_output);
  44
  45 extern void bt_port_output_put_ref(const bt_port_output *port_output);
  46
  47 #define BT_PORT_OUTPUT_PUT_REF_AND_RESET(_var)          \
  48         do {                                            \
  49                 bt_port_output_put_ref(_var);           \
  50                 (_var) = NULL;                          \
  51         } while (0)
  52
  53 #define BT_PORT_OUTPUT_MOVE_REF(_var_dst, _var_src)     \
  54         do {                                            \
  55                 bt_port_output_put_ref(_var_dst);       \
  56                 (_var_dst) = (_var_src);                \
  57                 (_var_src) = NULL;                      \
  58         } while (0)
  59
  60 #ifdef __cplusplus
  61 }
  62 #endif
  63
  64 #endif /* BABELTRACE_GRAPH_PORT_OUTPUT_CONST_H */