2 * SPDX-License-Identifier: MIT
4 * Copyright (C) 2013 Julien Desfossez <jdesfossez@efficios.com>
5 * Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
9 #ifndef BABELTRACE_PLUGINS_CTF_FS_SRC_LTTNG_INDEX_HPP
10 #define BABELTRACE_PLUGINS_CTF_FS_SRC_LTTNG_INDEX_HPP
14 #include "compat/limits.h" /* IWYU pragma: keep */
16 #define CTF_INDEX_MAGIC 0xC1F1DCC1
17 #define CTF_INDEX_MAJOR 1
18 #define CTF_INDEX_MINOR 1
19 #define CTF_INDEX_1_0_SIZE offsetof(struct ctf_packet_index, stream_instance_id)
22 * Header at the beginning of each index file.
23 * All integer fields are stored in big endian.
25 struct ctf_packet_index_file_hdr
30 /* size of struct ctf_packet_index, in bytes. */
31 uint32_t packet_index_len;
32 } __attribute__((__packed__));
35 * Packet index generated for each trace packet store in a trace file.
36 * All integer fields are stored in big endian.
38 struct ctf_packet_index
40 uint64_t offset; /* offset of the packet in the file, in bytes */
41 uint64_t packet_size; /* packet size, in bits */
42 uint64_t content_size; /* content size, in bits */
43 uint64_t timestamp_begin;
44 uint64_t timestamp_end;
45 uint64_t events_discarded;
47 /* CTF_INDEX 1.0 limit */
48 uint64_t stream_instance_id; /* ID of the channel instance */
49 uint64_t packet_seq_num; /* packet sequence number */
50 } __attribute__((__packed__));
52 #endif /* BABELTRACE_PLUGINS_CTF_FS_SRC_LTTNG_INDEX_HPP */