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