include/lttng/action/rotate-session.h

   1 /*
   2  * Copyright (C) 2019 Simon Marchi <simon.marchi@efficios.com>
   3  *
   4  * SPDX-License-Identifier: LGPL-2.1-only
   5  *
   6  */
   7
   8 #ifndef LTTNG_ACTION_ROTATE_SESSION_H
   9 #define LTTNG_ACTION_ROTATE_SESSION_H
  10
  11 struct lttng_action;
  12 struct lttng_rate_policy;
  13
  14 #ifdef __cplusplus
  15 extern "C" {
  16 #endif
  17
  18 /*
  19  * Create a newly allocated rotate-session action object.
  20  *
  21  * A rotate session action object must have a session name set to be considered
  22  * valid when used with a trigger object (lttng_trigger). A name can be set
  23  * using `lttng_action_rotate_session_set_session_name`.
  24  *
  25  * Returns a new action on success, NULL on failure. This action must be
  26  * destroyed using lttng_action_destroy().
  27  */
  28 extern struct lttng_action *lttng_action_rotate_session_create(void);
  29
  30 /*
  31  * Set the session name of an lttng_action object of type
  32  * LTTNG_ACTION_TYPE_ROTATE_SESSION.
  33  */
  34 extern enum lttng_action_status lttng_action_rotate_session_set_session_name(
  35                 struct lttng_action *action, const char *session_name);
  36
  37 /*
  38  * Get the session name of an lttng_action object of type
  39  * LTTNG_ACTION_TYPE_ROTATE_SESSION.
  40  */
  41 extern enum lttng_action_status lttng_action_rotate_session_get_session_name(
  42                 const struct lttng_action *action, const char **session_name);
  43
  44 /*
  45  * Set the rate policy of a rotate session action.
  46  *
  47  * Returns LTTNG_ACTION_STATUS_OK on success,
  48  * LTTNG_ACTION_STATUS_ERROR on internal error,
  49  * LTTNG_ACTION_STATUS_INVALID if invalid parameters are passed.
  50  */
  51 extern enum lttng_action_status lttng_action_rotate_session_set_rate_policy(
  52                 struct lttng_action *action,
  53                 const struct lttng_rate_policy *policy);
  54
  55 /*
  56  * Get the rate policy of a rotate session action.
  57  *
  58  * Returns LTTNG_ACTION_STATUS_OK on success,
  59  * LTTNG_ACTION_STATUS_INVALID if invalid parameters are passed.
  60  */
  61 extern enum lttng_action_status lttng_action_rotate_session_get_rate_policy(
  62                 const struct lttng_action *action,
  63                 const struct lttng_rate_policy **policy);
  64
  65 #ifdef __cplusplus
  66 }
  67 #endif
  68
  69 #endif /* LTTNG_ACTION_ROTATE_SESSION_H */