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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 */ |