include/lttng/notification/notification-internal.hpp

   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_NOTIFICATION_INTERNAL_H
   9 #define LTTNG_NOTIFICATION_INTERNAL_H
  10
  11 #include <common/macros.hpp>
  12 #include <common/make-unique-wrapper.hpp>
  13
  14 #include <lttng/notification/notification.h>
  15
  16 #include <memory>
  17 #include <stdbool.h>
  18 #include <stdint.h>
  19 #include <sys/types.h>
  20
  21 struct lttng_payload;
  22 struct lttng_payload_view;
  23
  24 struct lttng_notification {
  25         using uptr = std::unique_ptr<
  26                 lttng_notification,
  27                 lttng::memory::create_deleter_class<lttng_notification,
  28                                                     lttng_notification_destroy>::deleter>;
  29
  30         struct lttng_trigger *trigger;
  31         struct lttng_evaluation *evaluation;
  32 };
  33
  34 struct lttng_notification_comm {
  35         /* Size of the payload following this field. */
  36         uint32_t length;
  37         /* Trigger and evaluation objects follow. */
  38         char payload[];
  39 } LTTNG_PACKED;
  40
  41 struct lttng_notification *lttng_notification_create(struct lttng_trigger *trigger,
  42                                                      struct lttng_evaluation *evaluation);
  43
  44 int lttng_notification_serialize(const struct lttng_notification *notification,
  45                                  struct lttng_payload *payload);
  46
  47 ssize_t lttng_notification_create_from_payload(struct lttng_payload_view *view,
  48                                                struct lttng_notification **notification);
  49
  50 const struct lttng_condition *
  51 lttng_notification_get_const_condition(const struct lttng_notification *notification);
  52 const struct lttng_evaluation *
  53 lttng_notification_get_const_evaluation(const struct lttng_notification *notification);
  54
  55 const struct lttng_trigger *
  56 lttng_notification_get_const_trigger(const struct lttng_notification *notification);
  57
  58 #endif /* LTTNG_NOTIFICATION_INTERNAL_H */