include/babeltrace2/trace-ir/field-path-const.h

   1 #ifndef BABELTRACE2_TRACE_IR_FIELD_PATH_CONST_H
   2 #define BABELTRACE2_TRACE_IR_FIELD_PATH_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 <stdint.h>
  31
  32 #include <babeltrace2/types.h>
  33
  34 #ifdef __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 typedef enum bt_field_path_item_type {
  39         BT_FIELD_PATH_ITEM_TYPE_INDEX,
  40         BT_FIELD_PATH_ITEM_TYPE_CURRENT_ARRAY_ELEMENT,
  41 } bt_field_path_item_type;
  42
  43 typedef enum bt_scope {
  44         BT_SCOPE_PACKET_CONTEXT,
  45         BT_SCOPE_EVENT_COMMON_CONTEXT,
  46         BT_SCOPE_EVENT_SPECIFIC_CONTEXT,
  47         BT_SCOPE_EVENT_PAYLOAD,
  48 } bt_scope;
  49
  50 extern bt_scope bt_field_path_get_root_scope(
  51                 const bt_field_path *field_path);
  52
  53 extern uint64_t bt_field_path_get_item_count(
  54                 const bt_field_path *field_path);
  55
  56 extern const bt_field_path_item *bt_field_path_borrow_item_by_index_const(
  57                 const bt_field_path *field_path, uint64_t index);
  58
  59 extern bt_field_path_item_type bt_field_path_item_get_type(
  60                 const bt_field_path_item *field_path_item);
  61
  62 extern uint64_t bt_field_path_item_index_get_index(
  63                 const bt_field_path_item *field_path_item);
  64
  65 extern void bt_field_path_get_ref(const bt_field_path *field_path);
  66
  67 extern void bt_field_path_put_ref(const bt_field_path *field_path);
  68
  69 #define BT_FIELD_PATH_PUT_REF_AND_RESET(_var)           \
  70         do {                                            \
  71                 bt_field_path_put_ref(_var);            \
  72                 (_var) = NULL;                          \
  73         } while (0)
  74
  75 #define BT_FIELD_PATH_MOVE_REF(_var_dst, _var_src)      \
  76         do {                                            \
  77                 bt_field_path_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 /* BABELTRACE2_TRACE_IR_FIELD_PATH_CONST_H */