include/lttng/trigger/trigger.h

   1 /*
   2  * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * This library is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU Lesser General Public License, version 2.1 only,
   6  * as published by the Free Software Foundation.
   7  *
   8  * This library is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
  11  * for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this library; if not, write to the Free Software Foundation,
  15  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  16  */
  17
  18 #ifndef LTTNG_TRIGGER_H
  19 #define LTTNG_TRIGGER_H
  20
  21 struct lttng_action;
  22 struct lttng_condition;
  23 struct lttng_trigger;
  24
  25 #ifdef __cplusplus
  26 extern "C" {
  27 #endif
  28
  29 enum lttng_register_trigger_status {
  30         LTTNG_REGISTER_TRIGGER_STATUS_OK = 0,
  31         LTTNG_REGISTER_TRIGGER_STATUS_INVALID = -1,
  32 };
  33
  34 /* The caller retains the ownership of both condition and action. */
  35 extern struct lttng_trigger *lttng_trigger_create(
  36                 struct lttng_condition *condition, struct lttng_action *action);
  37
  38 extern struct lttng_condition *lttng_trigger_get_condition(
  39                 struct lttng_trigger *trigger);
  40
  41 extern struct lttng_action *lttng_trigger_get_action(
  42                 struct lttng_trigger *trigger);
  43
  44 extern void lttng_trigger_destroy(struct lttng_trigger *trigger);
  45
  46 extern int lttng_register_trigger(struct lttng_trigger *trigger);
  47
  48 extern int lttng_unregister_trigger(struct lttng_trigger *trigger);
  49
  50 #ifdef __cplusplus
  51 }
  52 #endif
  53
  54 #endif /* LTTNG_TRIGGER_H */