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7591bab1 MD |
1 | #ifndef _RELAY_INDEX_H |
2 | #define _RELAY_INDEX_H | |
3 | ||
1c20f0e2 | 4 | /* |
ab5be9fa MJ |
5 | * Copyright (C) 2013 Julien Desfossez <jdesfossez@efficios.com> |
6 | * Copyright (C) 2013 David Goulet <dgoulet@efficios.com> | |
7 | * Copyright (C) 2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
1c20f0e2 | 8 | * |
ab5be9fa | 9 | * SPDX-License-Identifier: GPL-2.0-only |
1c20f0e2 | 10 | * |
1c20f0e2 JD |
11 | */ |
12 | ||
1c20f0e2 JD |
13 | #include <inttypes.h> |
14 | #include <pthread.h> | |
15 | ||
16 | #include <common/hashtable/hashtable.h> | |
17 | #include <common/index/index.h> | |
18 | ||
7591bab1 | 19 | struct relay_stream; |
c35f9726 JG |
20 | struct relay_connection; |
21 | struct lttcomm_relayd_index; | |
7591bab1 | 22 | |
1c20f0e2 | 23 | struct relay_index { |
1c20f0e2 | 24 | /* |
7591bab1 | 25 | * index lock nests inside stream lock. |
1c20f0e2 | 26 | */ |
7591bab1 MD |
27 | struct urcu_ref ref; /* Reference from getters. */ |
28 | struct relay_stream *stream; /* Back ref to stream */ | |
29 | ||
30 | pthread_mutex_t lock; | |
31 | /* | |
f8f3885c MD |
32 | * index file on which to write the index data. May differ from |
33 | * stream->index_file due to tracefile rotation. | |
7591bab1 | 34 | */ |
f8f3885c | 35 | struct lttng_index_file *index_file; |
1c20f0e2 JD |
36 | |
37 | /* Index packet data. This is the data that is written on disk. */ | |
50adc264 | 38 | struct ctf_packet_index index_data; |
d3ecc550 JD |
39 | /* Data + padding size of this packet, filled by the data thread. */ |
40 | uint64_t total_size; | |
1c20f0e2 | 41 | |
7591bab1 MD |
42 | bool has_index_data; |
43 | bool flushed; | |
44 | bool in_hash_table; | |
45 | ||
46 | /* | |
47 | * Node within indexes_ht that corresponds to this struct | |
48 | * relay_index. Indexed by net_seq_num, which is unique for this | |
49 | * index across the stream. | |
50 | */ | |
51 | struct lttng_ht_node_u64 index_n; | |
52 | struct rcu_head rcu_node; /* For call_rcu teardown. */ | |
1c20f0e2 JD |
53 | }; |
54 | ||
7591bab1 | 55 | struct relay_index *relay_index_get_by_id_or_create(struct relay_stream *stream, |
1c20f0e2 | 56 | uint64_t net_seq_num); |
7591bab1 | 57 | void relay_index_put(struct relay_index *index); |
f8f3885c MD |
58 | int relay_index_set_file(struct relay_index *index, |
59 | struct lttng_index_file *index_file, | |
60 | uint64_t data_offset); | |
7591bab1 | 61 | int relay_index_set_data(struct relay_index *index, |
3a5328d2 | 62 | const struct ctf_packet_index *data); |
7591bab1 MD |
63 | int relay_index_try_flush(struct relay_index *index); |
64 | ||
65 | void relay_index_close_all(struct relay_stream *stream); | |
3d07a857 MD |
66 | void relay_index_close_partial_fd(struct relay_stream *stream); |
67 | uint64_t relay_index_find_last(struct relay_stream *stream); | |
d3ecc550 | 68 | int relay_index_switch_all_files(struct relay_stream *stream); |
c35f9726 JG |
69 | int relay_index_set_control_data(struct relay_index *index, |
70 | const struct lttcomm_relayd_index *data, | |
71 | unsigned int minor_version); | |
1c20f0e2 JD |
72 | |
73 | #endif /* _RELAY_INDEX_H */ |