include/lttng/action/list-internal.hpp

   1 /*
   2  * Copyright (C) 2019 Simon Marchi <simon.marchi@efficios.com>
   3  *
   4  * SPDX-License-Identifier: LGPL-2.1-only
   5  *
   6  */
   7
   8 #ifndef LTTNG_ACTION_LIST_INTERNAL_H
   9 #define LTTNG_ACTION_LIST_INTERNAL_H
  10
  11 #include <common/macros.hpp>
  12
  13 #include <lttng/lttng-error.h>
  14
  15 #include <assert.h>
  16 #include <sys/types.h>
  17
  18 struct lttng_action;
  19 struct lttng_payload_view;
  20 struct mi_writer;
  21 struct mi_lttng_error_query_callbacks;
  22 struct lttng_dynamic_array;
  23 struct lttng_trigger;
  24
  25 /*
  26  * Create an action list from a payload view.
  27  *
  28  * On success, return the number of bytes consumed from `view`, and the created
  29  * list in `*list`. On failure, return -1.
  30  */
  31 extern ssize_t lttng_action_list_create_from_payload(struct lttng_payload_view *view,
  32                                                      struct lttng_action **list);
  33
  34 extern struct lttng_action *
  35 lttng_action_list_borrow_mutable_at_index(const struct lttng_action *list, unsigned int index);
  36
  37 enum lttng_error_code
  38 lttng_action_list_mi_serialize(const struct lttng_trigger *trigger,
  39                                const struct lttng_action *action,
  40                                struct mi_writer *writer,
  41                                const struct mi_lttng_error_query_callbacks *error_query_callbacks,
  42                                struct lttng_dynamic_array *action_path_indexes);
  43
  44 #define for_each_action_const(__action_element, __action_list)                                 \
  45         assert(lttng_action_get_type(__action_list) == LTTNG_ACTION_TYPE_LIST);                \
  46                                                                                                \
  47         for (unsigned int __action_idx = 0;                                                    \
  48              (__action_element = lttng_action_list_get_at_index(__action_list, __action_idx)); \
  49              __action_idx++)
  50
  51 #define for_each_action_mutable(__action_element, __action_list)                               \
  52         assert(lttng_action_get_type(__action_list) == LTTNG_ACTION_TYPE_LIST);                \
  53                                                                                                \
  54         for (unsigned int __action_idx = 0;                                                    \
  55              (__action_element =                                                               \
  56                       lttng_action_list_borrow_mutable_at_index(__action_list, __action_idx)); \
  57              __action_idx++)
  58
  59 #endif /* LTTNG_ACTION_LIST_INTERNAL_H */