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309167d2 JD |
1 | /* |
2 | * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com> | |
3 | * David Goulet <dgoulet@efficios.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License, version 2 only, | |
7 | * as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | */ | |
18 | ||
19 | #ifndef LTTNG_INDEX_H | |
20 | #define LTTNG_INDEX_H | |
21 | ||
22 | #include <limits.h> | |
23 | ||
24 | #define INDEX_MAGIC "CTFIDX" | |
25 | #define INDEX_MAJOR 1 | |
26 | #define INDEX_MINOR 0 | |
27 | ||
28 | /* | |
29 | * Header at the beginning of each index file. | |
30 | * All integer fields are stored in big endian. | |
31 | */ | |
32 | struct lttng_packet_index_file_hdr { | |
33 | char magic[6]; | |
34 | uint32_t index_major; | |
35 | uint32_t index_minor; | |
36 | } __attribute__((__packed__)); | |
37 | ||
38 | /* | |
39 | * Packet index generated for each trace packet store in a trace file. | |
40 | * All integer fields are stored in big endian. | |
41 | */ | |
42 | struct lttng_packet_index { | |
43 | uint64_t offset; /* offset of the packet in the file, in bytes */ | |
44 | uint64_t packet_size; /* packet size, in bits */ | |
45 | uint64_t content_size; /* content size, in bits */ | |
46 | uint64_t timestamp_begin; | |
47 | uint64_t timestamp_end; | |
48 | uint64_t events_discarded; | |
49 | uint64_t stream_id; | |
50 | } __attribute__((__packed__)); | |
51 | ||
52 | #endif /* LTTNG_INDEX_H */ |