include/babeltrace/graph/component-source-const.h

   1 #ifndef BABELTRACE_GRAPH_COMPONENT_SOURCE_CONST_H
   2 #define BABELTRACE_GRAPH_COMPONENT_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 #include <stdint.h>
  28
  29 /* For bt_component, bt_component_filter, bt_port_output */
  30 #include <babeltrace/types.h>
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 static inline
  37 const bt_component *bt_component_source_as_component_const(
  38                 const bt_component_source *component)
  39 {
  40         return (void *) component;
  41 }
  42
  43 extern uint64_t bt_component_source_get_output_port_count(
  44                 const bt_component_source *component);
  45
  46 extern const bt_port_output *
  47 bt_component_source_borrow_output_port_by_name_const(
  48                 const bt_component_source *component, const char *name);
  49
  50 extern const bt_port_output *
  51 bt_component_source_borrow_output_port_by_index_const(
  52                 const bt_component_source *component, uint64_t index);
  53
  54 extern void bt_component_source_get_ref(
  55                 const bt_component_source *component_source);
  56
  57 extern void bt_component_source_put_ref(
  58                 const bt_component_source *component_source);
  59
  60 #define BT_COMPONENT_SOURCE_PUT_REF_AND_RESET(_var)             \
  61         do {                                                    \
  62                 bt_component_source_put_ref(_var);              \
  63                 (_var) = NULL;                                  \
  64         } while (0)
  65
  66 #define BT_COMPONENT_SOURCE_MOVE_REF(_var_dst, _var_src)        \
  67         do {                                                    \
  68                 bt_component_source_put_ref(_var_dst);          \
  69                 (_var_dst) = (_var_src);                        \
  70                 (_var_src) = NULL;                              \
  71         } while (0)
  72
  73 #ifdef __cplusplus
  74 }
  75 #endif
  76
  77 #endif /* BABELTRACE_GRAPH_COMPONENT_SOURCE_CONST_H */