Clean-up: relayd index: change spaces to tabs
[lttng-tools.git] / src / bin / lttng-relayd / index.h
1 #ifndef _RELAY_INDEX_H
2 #define _RELAY_INDEX_H
3
4 /*
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>
8 *
9 * SPDX-License-Identifier: GPL-2.0-only
10 *
11 */
12
13 #include <inttypes.h>
14 #include <pthread.h>
15
16 #include <common/hashtable/hashtable.h>
17 #include <common/index/index.h>
18
19 struct relay_stream;
20 struct relay_connection;
21 struct lttcomm_relayd_index;
22
23 struct relay_index {
24 /*
25 * index lock nests inside stream lock.
26 */
27 struct urcu_ref ref; /* Reference from getters. */
28 struct relay_stream *stream; /* Back ref to stream */
29
30 pthread_mutex_t lock;
31 /*
32 * index file on which to write the index data. May differ from
33 * stream->index_file due to tracefile rotation.
34 */
35 struct lttng_index_file *index_file;
36
37 /* Index packet data. This is the data that is written on disk. */
38 struct ctf_packet_index index_data;
39 /* Data + padding size of this packet, filled by the data thread. */
40 uint64_t total_size;
41
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. */
53 };
54
55 struct relay_index *relay_index_get_by_id_or_create(struct relay_stream *stream,
56 uint64_t net_seq_num);
57 void relay_index_put(struct relay_index *index);
58 int relay_index_set_file(struct relay_index *index,
59 struct lttng_index_file *index_file,
60 uint64_t data_offset);
61 int relay_index_set_data(struct relay_index *index,
62 const struct ctf_packet_index *data);
63 int relay_index_try_flush(struct relay_index *index);
64
65 void relay_index_close_all(struct relay_stream *stream);
66 void relay_index_close_partial_fd(struct relay_stream *stream);
67 uint64_t relay_index_find_last(struct relay_stream *stream);
68 int relay_index_switch_all_files(struct relay_stream *stream);
69 int relay_index_set_control_data(struct relay_index *index,
70 const struct lttcomm_relayd_index *data,
71 unsigned int minor_version);
72
73 #endif /* _RELAY_INDEX_H */
This page took 0.040952 seconds and 4 git commands to generate.