include/babeltrace2/graph/port-output-const.h

   1 #ifndef BABELTRACE2_GRAPH_PORT_OUTPUT_CONST_H
   2 #define BABELTRACE2_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 #ifndef __BT_IN_BABELTRACE_H
  28 # error "Please include <babeltrace2/babeltrace.h> instead."
  29 #endif
  30
  31 /* For bt_port, bt_port_output, __BT_UPCAST_CONST */
  32 #include <babeltrace2/types.h>
  33
  34 #include <stdint.h>
  35
  36 #ifdef __cplusplus
  37 extern "C" {
  38 #endif
  39
  40 static inline
  41 const bt_port *bt_port_output_as_port_const(const bt_port_output *port_output)
  42 {
  43         return __BT_UPCAST_CONST(bt_port, port_output);
  44 }
  45
  46 extern void bt_port_output_get_ref(const bt_port_output *port_output);
  47
  48 extern void bt_port_output_put_ref(const bt_port_output *port_output);
  49
  50 #define BT_PORT_OUTPUT_PUT_REF_AND_RESET(_var)          \
  51         do {                                            \
  52                 bt_port_output_put_ref(_var);           \
  53                 (_var) = NULL;                          \
  54         } while (0)
  55
  56 #define BT_PORT_OUTPUT_MOVE_REF(_var_dst, _var_src)     \
  57         do {                                            \
  58                 bt_port_output_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_PORT_OUTPUT_CONST_H */