/*
* Copyright (C) 2017 - Julien Desfossez <jdesfossez@efficios.com>
+ * Copyright (C) 2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License, version 2 only, as
#include <common/compat/poll.h>
#include <common/hashtable/hashtable.h>
#include <pthread.h>
+#include <semaphore.h>
#include "session.h"
+#include "notification-thread.h"
-/*
- * The timer thread enqueues struct sessiond_rotation_timer objects in the list
- * and wake up the rotation thread. When the rotation thread wakes up, it
- * empties the queue.
- */
-struct rotation_thread_timer_queue {
- struct lttng_pipe *event_pipe;
- struct cds_list_head list;
- pthread_mutex_t lock;
-};
+extern struct lttng_notification_channel *rotate_notification_channel;
-struct rotation_thread_handle {
- /*
- * Read side of pipes used to communicate with the rotation thread.
- */
- /* Notification from the consumers */
- int ust32_consumer;
- int ust64_consumer;
- int kernel_consumer;
- /* quit pipe */
- int thread_quit_pipe;
- struct rotation_thread_timer_queue *rotation_timer_queue;
+enum rotation_thread_job_type {
+ ROTATION_THREAD_JOB_TYPE_SCHEDULED_ROTATION,
+ ROTATION_THREAD_JOB_TYPE_CHECK_PENDING_ROTATION
};
+struct rotation_thread_timer_queue;
+struct rotation_thread_handle;
+
+struct rotation_thread_timer_queue *rotation_thread_timer_queue_create(void);
+void rotation_thread_timer_queue_destroy(
+ struct rotation_thread_timer_queue *queue);
+
struct rotation_thread_handle *rotation_thread_handle_create(
- struct lttng_pipe *ust32_channel_rotate_pipe,
- struct lttng_pipe *ust64_channel_rotate_pipe,
- struct lttng_pipe *kernel_channel_rotate_pipe,
- int thread_quit_pipe,
- struct rotation_thread_timer_queue *rotation_timer_queue);
+ struct rotation_thread_timer_queue *rotation_timer_queue,
+ struct notification_thread_handle *notification_thread_handle);
void rotation_thread_handle_destroy(
struct rotation_thread_handle *handle);
-void *thread_rotation(void *data);
+void rotation_thread_enqueue_job(struct rotation_thread_timer_queue *queue,
+ enum rotation_thread_job_type job_type,
+ struct ltt_session *session);
+
+bool launch_rotation_thread(struct rotation_thread_handle *handle);
#endif /* ROTATION_THREAD_H */