include/lttng/condition/condition-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_CONDITION_INTERNAL_H
   9 #define LTTNG_CONDITION_INTERNAL_H
  10
  11 #include <lttng/condition/condition.h>
  12 #include <common/macros.h>
  13 #include <common/payload-view.h>
  14 #include <common/payload.h>
  15 #include <stdbool.h>
  16 #include <urcu/list.h>
  17 #include <stdint.h>
  18 #include <sys/types.h>
  19
  20 typedef void (*condition_destroy_cb)(struct lttng_condition *condition);
  21 typedef bool (*condition_validate_cb)(const struct lttng_condition *condition);
  22 typedef int (*condition_serialize_cb)(
  23                 const struct lttng_condition *condition,
  24                 struct lttng_payload *payload);
  25 typedef bool (*condition_equal_cb)(const struct lttng_condition *a,
  26                 const struct lttng_condition *b);
  27 typedef ssize_t (*condition_create_from_payload_cb)(
  28                 struct lttng_payload_view *view,
  29                 struct lttng_condition **condition);
  30
  31 struct lttng_condition {
  32         enum lttng_condition_type type;
  33         condition_validate_cb validate;
  34         condition_serialize_cb serialize;
  35         condition_equal_cb equal;
  36         condition_destroy_cb destroy;
  37 };
  38
  39 struct lttng_condition_comm {
  40         /* enum lttng_condition_type */
  41         int8_t condition_type;
  42         char payload[];
  43 };
  44
  45 LTTNG_HIDDEN
  46 void lttng_condition_init(struct lttng_condition *condition,
  47                 enum lttng_condition_type type);
  48
  49 LTTNG_HIDDEN
  50 bool lttng_condition_validate(const struct lttng_condition *condition);
  51
  52 LTTNG_HIDDEN
  53 ssize_t lttng_condition_create_from_payload(
  54                 struct lttng_payload_view *view,
  55                 struct lttng_condition **condition);
  56
  57 LTTNG_HIDDEN
  58 int lttng_condition_serialize(const struct lttng_condition *condition,
  59                 struct lttng_payload *payload);
  60
  61 LTTNG_HIDDEN
  62 bool lttng_condition_is_equal(const struct lttng_condition *a,
  63                 const struct lttng_condition *b);
  64
  65 #endif /* LTTNG_CONDITION_INTERNAL_H */