include/babeltrace/graph/port-const.h

   1 #ifndef BABELTRACE_GRAPH_PORT_CONST_H
   2 #define BABELTRACE_GRAPH_PORT_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 #include <stdint.h>
  28
  29 /* For bt_bool, bt_port, bt_connection, bt_component */
  30 #include <babeltrace/types.h>
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 typedef enum bt_port_type {
  37         BT_PORT_TYPE_INPUT = 0,
  38         BT_PORT_TYPE_OUTPUT = 1,
  39 } bt_port_type;
  40
  41 extern const char *bt_port_get_name(const bt_port *port);
  42
  43 extern bt_port_type bt_port_get_type(const bt_port *port);
  44
  45 extern const bt_connection *bt_port_borrow_connection_const(
  46                 const bt_port *port);
  47
  48 extern const bt_component *bt_port_borrow_component_const(
  49                 const bt_port *port);
  50
  51 extern bt_bool bt_port_is_connected(const bt_port *port);
  52
  53 static inline
  54 bt_bool bt_port_is_input(const bt_port *port)
  55 {
  56         return bt_port_get_type(port) == BT_PORT_TYPE_INPUT;
  57 }
  58
  59 static inline
  60 bt_bool bt_port_is_output(const bt_port *port)
  61 {
  62         return bt_port_get_type(port) == BT_PORT_TYPE_OUTPUT;
  63 }
  64
  65 extern void bt_port_get_ref(const bt_port *port);
  66
  67 extern void bt_port_put_ref(const bt_port *port);
  68
  69 #define BT_PORT_PUT_REF_AND_RESET(_var)         \
  70         do {                                    \
  71                 bt_port_put_ref(_var);          \
  72                 (_var) = NULL;                  \
  73         } while (0)
  74
  75 #define BT_PORT_MOVE_REF(_var_dst, _var_src)    \
  76         do {                                    \
  77                 bt_port_put_ref(_var_dst);      \
  78                 (_var_dst) = (_var_src);        \
  79                 (_var_src) = NULL;              \
  80         } while (0)
  81
  82 #ifdef __cplusplus
  83 }
  84 #endif
  85
  86 #endif /* BABELTRACE_GRAPH_PORT_CONST_H */