include/lttng/action/action-internal.h

   1 /*
   2  * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * This library is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU Lesser General Public License, version 2.1 only,
   6  * as published by the Free Software Foundation.
   7  *
   8  * This library is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
  11  * for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this library; if not, write to the Free Software Foundation,
  15  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  16  */
  17
  18 #ifndef LTTNG_ACTION_INTERNAL_H
  19 #define LTTNG_ACTION_INTERNAL_H
  20
  21 #include <lttng/action/action.h>
  22 #include <common/macros.h>
  23 #include <common/buffer-view.h>
  24 #include <stdbool.h>
  25
  26 typedef bool (*action_validate_cb)(struct lttng_action *action);
  27 typedef void (*action_destroy_cb)(struct lttng_action *action);
  28 typedef ssize_t (*action_serialize_cb)(struct lttng_action *action, char *buf);
  29
  30 struct lttng_action {
  31         enum lttng_action_type type;
  32         action_validate_cb validate;
  33         action_serialize_cb serialize;
  34         action_destroy_cb destroy;
  35 };
  36
  37 struct lttng_action_comm {
  38         /* enum lttng_action_type */
  39         int8_t action_type;
  40 } LTTNG_PACKED;
  41
  42 LTTNG_HIDDEN
  43 bool lttng_action_validate(struct lttng_action *action);
  44
  45 LTTNG_HIDDEN
  46 ssize_t lttng_action_serialize(struct lttng_action *action, char *buf);
  47
  48 LTTNG_HIDDEN
  49 ssize_t lttng_action_create_from_buffer(const struct lttng_buffer_view *view,
  50                 struct lttng_action **action);
  51
  52 #endif /* LTTNG_ACTION_INTERNAL_H */