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>
9 * SPDX-License-Identifier: GPL-2.0-only
16 #include <common/hashtable/hashtable.h>
17 #include <common/index/index.h>
20 struct relay_connection
;
21 struct lttcomm_relayd_index
;
25 * index lock nests inside stream lock.
27 struct urcu_ref ref
; /* Reference from getters. */
28 struct relay_stream
*stream
; /* Back ref to stream */
32 * index file on which to write the index data. May differ from
33 * stream->index_file due to tracefile rotation.
35 struct lttng_index_file
*index_file
;
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. */
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.
51 struct lttng_ht_node_u64 index_n
;
52 struct rcu_head rcu_node
; /* For call_rcu teardown. */
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
);
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
);
73 #endif /* _RELAY_INDEX_H */