/*
* 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
#define ROTATE_H
#include "rotation-thread.h"
+#include <stdint.h>
-/*
- * Key in channel_pending_rotate_ht to map a channel to a
- * struct rotation_channel_info.
- */
-struct rotation_channel_key {
- uint64_t key;
- enum lttng_domain_type domain;
-};
+int rename_active_chunk(struct ltt_session *session);
+int rename_completed_chunk(struct ltt_session *session, time_t ts);
/*
- * Added in channel_pending_rotate_ht everytime we start the rotation of a
- * channel. The consumer notifies the rotation thread with the channel_key to
- * inform a rotation is complete, we use that information to lookup the related
- * session from channel_pending_rotate_ht.
+ * Subscribe/unsubscribe the notification_channel from the rotation_thread to
+ * session usage notifications to perform size-based rotations.
*/
-struct rotation_channel_info {
- uint64_t session_id;
- struct rotation_channel_key channel_key;
- struct cds_lfht_node rotate_channels_ht_node;
-};
-
-extern struct cds_lfht *channel_pending_rotate_ht;
-
-unsigned long hash_channel_key(struct rotation_channel_key *key);
-
-/* session lock must be held by this function's caller. */
-int rename_complete_chunk(struct ltt_session *session, time_t ts);
+int subscribe_session_consumed_size_rotation(struct ltt_session *session,
+ uint64_t size,
+ struct notification_thread_handle *notification_thread_handle);
+int unsubscribe_session_consumed_size_rotation(struct ltt_session *session,
+ struct notification_thread_handle *notification_thread_handle);
#endif /* ROTATE_H */