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7591bab1 MD |
1 | #ifndef _RELAY_INDEX_H |
2 | #define _RELAY_INDEX_H | |
3 | ||
1c20f0e2 JD |
4 | /* |
5 | * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com> | |
6 | * David Goulet <dgoulet@efficios.com> | |
7591bab1 | 7 | * 2015 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
1c20f0e2 JD |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License, version 2 only, as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
16 | * more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along with | |
19 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
20 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
21 | */ | |
22 | ||
1c20f0e2 JD |
23 | #include <inttypes.h> |
24 | #include <pthread.h> | |
25 | ||
26 | #include <common/hashtable/hashtable.h> | |
27 | #include <common/index/index.h> | |
28 | ||
7591bab1 MD |
29 | #include "stream-fd.h" |
30 | ||
31 | struct relay_stream; | |
32 | ||
1c20f0e2 | 33 | struct relay_index { |
1c20f0e2 | 34 | /* |
7591bab1 | 35 | * index lock nests inside stream lock. |
1c20f0e2 | 36 | */ |
7591bab1 MD |
37 | struct urcu_ref ref; /* Reference from getters. */ |
38 | struct relay_stream *stream; /* Back ref to stream */ | |
39 | ||
40 | pthread_mutex_t lock; | |
41 | /* | |
f8f3885c MD |
42 | * index file on which to write the index data. May differ from |
43 | * stream->index_file due to tracefile rotation. | |
7591bab1 | 44 | */ |
f8f3885c | 45 | struct lttng_index_file *index_file; |
1c20f0e2 JD |
46 | |
47 | /* Index packet data. This is the data that is written on disk. */ | |
50adc264 | 48 | struct ctf_packet_index index_data; |
1c20f0e2 | 49 | |
7591bab1 MD |
50 | bool has_index_data; |
51 | bool flushed; | |
52 | bool in_hash_table; | |
53 | ||
54 | /* | |
55 | * Node within indexes_ht that corresponds to this struct | |
56 | * relay_index. Indexed by net_seq_num, which is unique for this | |
57 | * index across the stream. | |
58 | */ | |
59 | struct lttng_ht_node_u64 index_n; | |
60 | struct rcu_head rcu_node; /* For call_rcu teardown. */ | |
1c20f0e2 JD |
61 | }; |
62 | ||
7591bab1 | 63 | struct relay_index *relay_index_get_by_id_or_create(struct relay_stream *stream, |
1c20f0e2 | 64 | uint64_t net_seq_num); |
7591bab1 | 65 | void relay_index_put(struct relay_index *index); |
f8f3885c MD |
66 | int relay_index_set_file(struct relay_index *index, |
67 | struct lttng_index_file *index_file, | |
68 | uint64_t data_offset); | |
7591bab1 MD |
69 | int relay_index_set_data(struct relay_index *index, |
70 | const struct ctf_packet_index *data); | |
71 | int relay_index_try_flush(struct relay_index *index); | |
72 | ||
73 | void relay_index_close_all(struct relay_stream *stream); | |
3d07a857 MD |
74 | void relay_index_close_partial_fd(struct relay_stream *stream); |
75 | uint64_t relay_index_find_last(struct relay_stream *stream); | |
1c20f0e2 JD |
76 | |
77 | #endif /* _RELAY_INDEX_H */ |