X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Frotate.h;h=a2adaf0d630ce7f5d1753aca2021aff55fcd3961;hp=b2f006f3e2fc96bbf0260480e409772dc4e18cc5;hb=d1ba29d290281cf72ca3ec7b0222b336c747e925;hpb=db66e57489e5014289dc1d831e1eac90ac4fc0da diff --git a/src/bin/lttng-sessiond/rotate.h b/src/bin/lttng-sessiond/rotate.h index b2f006f3e..a2adaf0d6 100644 --- a/src/bin/lttng-sessiond/rotate.h +++ b/src/bin/lttng-sessiond/rotate.h @@ -1,51 +1,25 @@ /* - * Copyright (C) 2017 - Julien Desfossez + * Copyright (C) 2017 Julien Desfossez + * Copyright (C) 2018 Jérémie Galarneau * - * 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 - * published by the Free Software Foundation. + * SPDX-License-Identifier: GPL-2.0-only * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 51 - * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef ROTATE_H #define ROTATE_H #include "rotation-thread.h" +#include /* - * 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; -}; - -/* - * 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 */