| 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 */ |