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

   1 /*
   2  * Copyright (C) 2017 - Julien Desfossez <jdesfossez@efficios.com>
   3  * Copyright (C) 2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License, version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc., 51
  16  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #ifndef ROTATION_THREAD_H
  20 #define ROTATION_THREAD_H
  21
  22 #include <urcu/list.h>
  23 #include <urcu.h>
  24 #include <urcu/rculfhash.h>
  25 #include <lttng/domain.h>
  26 #include <common/pipe.h>
  27 #include <common/compat/poll.h>
  28 #include <common/hashtable/hashtable.h>
  29 #include <pthread.h>
  30 #include <semaphore.h>
  31 #include "session.h"
  32 #include "notification-thread.h"
  33
  34 extern struct lttng_notification_channel *rotate_notification_channel;
  35
  36 enum rotation_thread_job_type {
  37         ROTATION_THREAD_JOB_TYPE_SCHEDULED_ROTATION,
  38         ROTATION_THREAD_JOB_TYPE_CHECK_PENDING_ROTATION
  39 };
  40
  41 struct rotation_thread_timer_queue;
  42 struct rotation_thread_handle;
  43
  44 struct rotation_thread_timer_queue *rotation_thread_timer_queue_create(void);
  45 void rotation_thread_timer_queue_destroy(
  46                 struct rotation_thread_timer_queue *queue);
  47
  48 struct rotation_thread_handle *rotation_thread_handle_create(
  49                 struct rotation_thread_timer_queue *rotation_timer_queue,
  50                 struct notification_thread_handle *notification_thread_handle,
  51                 sem_t *notification_thread_ready);
  52
  53 void rotation_thread_handle_destroy(
  54                 struct rotation_thread_handle *handle);
  55
  56 void rotation_thread_enqueue_job(struct rotation_thread_timer_queue *queue,
  57                 enum rotation_thread_job_type job_type, uint64_t session_id);
  58
  59 void *thread_rotation(void *data);
  60
  61 #endif /* ROTATION_THREAD_H */