include/lttng/action/action-internal.h

   1 /*
   2  * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * SPDX-License-Identifier: LGPL-2.1-only
   5  *
   6  */
   7
   8 #ifndef LTTNG_ACTION_INTERNAL_H
   9 #define LTTNG_ACTION_INTERNAL_H
  10
  11 #include <lttng/action/action.h>
  12 #include <common/macros.h>
  13 #include <common/buffer-view.h>
  14 #include <common/dynamic-buffer.h>
  15 #include <stdbool.h>
  16 #include <sys/types.h>
  17
  18 typedef bool (*action_validate_cb)(struct lttng_action *action);
  19 typedef void (*action_destroy_cb)(struct lttng_action *action);
  20 typedef int (*action_serialize_cb)(struct lttng_action *action,
  21                 struct lttng_dynamic_buffer *buf);
  22 typedef bool (*action_equal_cb)(const struct lttng_action *a,
  23                 const struct lttng_action *b);
  24 typedef ssize_t (*action_create_from_buffer_cb)(
  25                 const struct lttng_buffer_view *view,
  26                 struct lttng_action **action);
  27
  28 struct lttng_action {
  29         enum lttng_action_type type;
  30         action_validate_cb validate;
  31         action_serialize_cb serialize;
  32         action_equal_cb equal;
  33         action_destroy_cb destroy;
  34 };
  35
  36 struct lttng_action_comm {
  37         /* enum lttng_action_type */
  38         int8_t action_type;
  39 } LTTNG_PACKED;
  40
  41 LTTNG_HIDDEN
  42 void lttng_action_init(struct lttng_action *action,
  43                 enum lttng_action_type type,
  44                 action_validate_cb validate,
  45                 action_serialize_cb serialize,
  46                 action_equal_cb equal,
  47                 action_destroy_cb destroy);
  48
  49 LTTNG_HIDDEN
  50 bool lttng_action_validate(struct lttng_action *action);
  51
  52 LTTNG_HIDDEN
  53 int lttng_action_serialize(struct lttng_action *action,
  54                 struct lttng_dynamic_buffer *buf);
  55
  56 LTTNG_HIDDEN
  57 ssize_t lttng_action_create_from_buffer(const struct lttng_buffer_view *view,
  58                 struct lttng_action **action);
  59
  60 LTTNG_HIDDEN
  61 enum lttng_action_type lttng_action_get_type_const(
  62                 const struct lttng_action *action);
  63
  64 LTTNG_HIDDEN
  65 bool lttng_action_is_equal(const struct lttng_action *a,
  66                 const struct lttng_action *b);
  67
  68 #endif /* LTTNG_ACTION_INTERNAL_H */