projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| db66e574 JD |
1 | /* |
| 2 | * Copyright (C) 2017 - Julien Desfossez <jdesfossez@efficios.com> | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify it | |
| 5 | * under the terms of the GNU General Public License, version 2 only, as | |
| 6 | * published by the Free Software Foundation. | |
| 7 | * | |
| 8 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 11 | * more details. | |
| 12 | * | |
| 13 | * You should have received a copy of the GNU General Public License along with | |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
| 15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 16 | */ | |
| 17 | ||
| 18 | #ifndef ROTATE_H | |
| 19 | #define ROTATE_H | |
| 20 | ||
| 21 | #include "rotation-thread.h" | |
| 22 | ||
| 23 | /* | |
| 24 | * Key in channel_pending_rotate_ht to map a channel to a | |
| 25 | * struct rotation_channel_info. | |
| 26 | */ | |
| 27 | struct rotation_channel_key { | |
| 28 | uint64_t key; | |
| 29 | enum lttng_domain_type domain; | |
| 30 | }; | |
| 31 | ||
| 32 | /* | |
| 33 | * Added in channel_pending_rotate_ht everytime we start the rotation of a | |
| 34 | * channel. The consumer notifies the rotation thread with the channel_key to | |
| 35 | * inform a rotation is complete, we use that information to lookup the related | |
| 36 | * session from channel_pending_rotate_ht. | |
| 37 | */ | |
| 38 | struct rotation_channel_info { | |
| 39 | uint64_t session_id; | |
| 40 | struct rotation_channel_key channel_key; | |
| 41 | struct cds_lfht_node rotate_channels_ht_node; | |
| 42 | }; | |
| 43 | ||
| 44 | extern struct cds_lfht *channel_pending_rotate_ht; | |
| 45 | ||
| 46 | unsigned long hash_channel_key(struct rotation_channel_key *key); | |
| 47 | ||
| 48 | /* session lock must be held by this function's caller. */ | |
| 49 | int rename_complete_chunk(struct ltt_session *session, time_t ts); | |
| 50 | ||
| 51 | #endif /* ROTATE_H */ |