projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c20f0e2 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 it | |
| 6 | * under the terms of the GNU General Public License, version 2 only, as | |
| 7 | * 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 with | |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
| 16 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 17 | */ | |
| 18 | ||
| 19 | #ifndef _RELAY_INDEX_H | |
| 20 | #define _RELAY_INDEX_H | |
| 21 | ||
| 22 | #include <inttypes.h> | |
| 23 | #include <pthread.h> | |
| 24 | ||
| 25 | #include <common/hashtable/hashtable.h> | |
| 26 | #include <common/index/index.h> | |
| 27 | ||
| 28 | struct relay_index { | |
| 29 | /* FD on which to write the index data. */ | |
| 30 | int fd; | |
| 31 | /* | |
| 32 | * When destroying this object, this fd is checked and if valid, close it | |
| 33 | * so this is basically a lazy close of the previous fd corresponding to | |
| 34 | * the same stream id. This is used for the rotate file feature. | |
| 35 | */ | |
| 36 | int to_close_fd; | |
| 37 | ||
| 38 | /* Index packet data. This is the data that is written on disk. */ | |
| 39 | struct lttng_packet_index index_data; | |
| 40 | ||
| 41 | /* key1 = stream_id, key2 = net_seq_num */ | |
| 42 | struct lttng_ht_two_u64 key; | |
| 43 | struct lttng_ht_node_two_u64 index_n; | |
| 44 | struct rcu_head rcu_node; | |
| 45 | pthread_mutex_t mutex; | |
| 46 | }; | |
| 47 | ||
| 48 | struct relay_index *relay_index_create(uint64_t stream_id, | |
| 49 | uint64_t net_seq_num); | |
| 0a6518b0 DG |
50 | struct relay_index *relay_index_find(uint64_t stream_id, uint64_t net_seq_num); |
| 51 | void relay_index_add(struct relay_index *index, struct relay_index **_index); | |
| 52 | int relay_index_write(int fd, struct relay_index *index); | |
| 1c20f0e2 JD |
53 | void relay_index_free(struct relay_index *index); |
| 54 | void relay_index_free_safe(struct relay_index *index); | |
| 0a6518b0 DG |
55 | void relay_index_delete(struct relay_index *index); |
| 56 | void relay_index_destroy_by_stream_id(uint64_t stream_id); | |
| 1c20f0e2 JD |
57 | |
| 58 | #endif /* _RELAY_INDEX_H */ |