src/bin/lttng-sessiond/rotation-thread.hpp

   1 /*
   2  * Copyright (C) 2017 Julien Desfossez <jdesfossez@efficios.com>
   3  * Copyright (C) 2018 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   4  *
   5  * SPDX-License-Identifier: GPL-2.0-only
   6  *
   7  */
   8
   9 #ifndef ROTATION_THREAD_H
  10 #define ROTATION_THREAD_H
  11
  12 #include <urcu/list.h>
  13 #include <urcu.h>
  14 #include <urcu/rculfhash.h>
  15 #include <lttng/domain.h>
  16 #include <common/pipe.hpp>
  17 #include <common/compat/poll.hpp>
  18 #include <common/hashtable/hashtable.hpp>
  19 #include <pthread.h>
  20 #include <semaphore.h>
  21 #include "session.hpp"
  22 #include "notification-thread.hpp"
  23
  24 extern struct lttng_notification_channel *rotate_notification_channel;
  25 extern int rotate_notification_channel_subscription_change_eventfd;
  26
  27 enum rotation_thread_job_type {
  28         ROTATION_THREAD_JOB_TYPE_SCHEDULED_ROTATION,
  29         ROTATION_THREAD_JOB_TYPE_CHECK_PENDING_ROTATION
  30 };
  31
  32 struct rotation_thread_timer_queue;
  33 struct rotation_thread_handle;
  34
  35 struct rotation_thread_timer_queue *rotation_thread_timer_queue_create(void);
  36 void rotation_thread_timer_queue_destroy(
  37                 struct rotation_thread_timer_queue *queue);
  38
  39 struct rotation_thread_handle *rotation_thread_handle_create(
  40                 struct rotation_thread_timer_queue *rotation_timer_queue,
  41                 struct notification_thread_handle *notification_thread_handle);
  42
  43 void rotation_thread_handle_destroy(
  44                 struct rotation_thread_handle *handle);
  45
  46 void rotation_thread_enqueue_job(struct rotation_thread_timer_queue *queue,
  47                 enum rotation_thread_job_type job_type,
  48                 struct ltt_session *session);
  49
  50 bool launch_rotation_thread(struct rotation_thread_handle *handle);
  51
  52 #endif /* ROTATION_THREAD_H */