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309167d2 JD |
1 | /* |
2 | * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com> | |
3 | * David Goulet <dgoulet@efficios.com> | |
f8f3885c | 4 | * 2016 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
309167d2 JD |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License, version 2 only, as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along with | |
16 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
17 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | */ | |
19 | ||
20 | #ifndef _INDEX_H | |
21 | #define _INDEX_H | |
22 | ||
23 | #include <inttypes.h> | |
f8f3885c | 24 | #include <urcu/ref.h> |
309167d2 | 25 | |
d2956687 | 26 | #include <common/trace-chunk.h> |
50adc264 | 27 | #include "ctf-index.h" |
309167d2 | 28 | |
f8f3885c MD |
29 | struct lttng_index_file { |
30 | int fd; | |
31 | uint32_t major; | |
32 | uint32_t minor; | |
33 | uint32_t element_len; | |
34 | struct urcu_ref ref; | |
35 | }; | |
36 | ||
37 | /* | |
38 | * create and open have refcount of 1. Use put to decrement the | |
39 | * refcount. Destroys when reaching 0. Use "get" to increment refcount. | |
40 | */ | |
d2956687 JG |
41 | struct lttng_index_file *lttng_index_file_create_from_trace_chunk( |
42 | struct lttng_trace_chunk *chunk, | |
43 | const char *channel_path, char *stream_name, | |
44 | uint64_t stream_file_size, uint64_t stream_count, | |
45 | uint32_t index_major, uint32_t index_minor, | |
46 | bool unlink_existing_file); | |
f8f3885c MD |
47 | struct lttng_index_file *lttng_index_file_open(const char *path_name, |
48 | const char *channel_name, uint64_t tracefile_count, | |
49 | uint64_t tracefile_count_current); | |
50 | int lttng_index_file_write(const struct lttng_index_file *index_file, | |
51 | const struct ctf_packet_index *element); | |
52 | int lttng_index_file_read(const struct lttng_index_file *index_file, | |
53 | struct ctf_packet_index *element); | |
54 | ||
55 | void lttng_index_file_get(struct lttng_index_file *index_file); | |
56 | void lttng_index_file_put(struct lttng_index_file *index_file); | |
309167d2 JD |
57 | |
58 | #endif /* _INDEX_H */ |