include/lttng/condition/evaluation-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_EVALUATION_INTERNAL_H
   9 #define LTTNG_EVALUATION_INTERNAL_H
  10
  11 #include <lttng/condition/evaluation.h>
  12 #include <lttng/condition/condition.h>
  13 #include <common/macros.h>
  14 #include <stdbool.h>
  15 #include <sys/types.h>
  16
  17 struct lttng_payload;
  18 struct lttng_payload_view;
  19
  20 typedef void (*evaluation_destroy_cb)(struct lttng_evaluation *evaluation);
  21 typedef int (*evaluation_serialize_cb)(
  22                 const struct lttng_evaluation *evaluation,
  23                 struct lttng_payload *payload);
  24
  25 struct lttng_evaluation_comm {
  26         /* enum lttng_condition_type type */
  27         int8_t type;
  28         char payload[];
  29 } LTTNG_PACKED;
  30
  31 struct lttng_evaluation {
  32         enum lttng_condition_type type;
  33         evaluation_serialize_cb serialize;
  34         evaluation_destroy_cb destroy;
  35 };
  36
  37 LTTNG_HIDDEN
  38 void lttng_evaluation_init(struct lttng_evaluation *evaluation,
  39                 enum lttng_condition_type type);
  40
  41 LTTNG_HIDDEN
  42 ssize_t lttng_evaluation_create_from_payload(
  43                 const struct lttng_condition *condition,
  44                 struct lttng_payload_view *view,
  45                 struct lttng_evaluation **evaluation);
  46
  47 LTTNG_HIDDEN
  48 int lttng_evaluation_serialize(const struct lttng_evaluation *evaluation,
  49                 struct lttng_payload *payload);
  50
  51 #endif /* LTTNG_EVALUATION_INTERNAL_H */