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