projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 309167d2 JD |
1 | /* |
| 2 | * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com> | |
| 3 | * David Goulet <dgoulet@efficios.com> | |
| f8f3885c | 4 | * 2016 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 309167d2 JD |
5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it | |
| 7 | * under the terms of the GNU General Public License, version 2 only, as | |
| 8 | * published by the Free Software Foundation. | |
| 9 | * | |
| 10 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 13 | * more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU General Public License along with | |
| 16 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
| 17 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 | */ | |
| 19 | ||
| 20 | #ifndef _INDEX_H | |
| 21 | #define _INDEX_H | |
| 22 | ||
| 23 | #include <inttypes.h> | |
| f8f3885c | 24 | #include <urcu/ref.h> |
| 309167d2 | 25 | |
| 50adc264 | 26 | #include "ctf-index.h" |
| 309167d2 | 27 | |
| f8f3885c MD |
28 | struct lttng_index_file { |
| 29 | int fd; | |
| 30 | uint32_t major; | |
| 31 | uint32_t minor; | |
| 32 | uint32_t element_len; | |
| 33 | struct urcu_ref ref; | |
| 34 | }; | |
| 35 | ||
| 36 | /* | |
| 37 | * create and open have refcount of 1. Use put to decrement the | |
| 38 | * refcount. Destroys when reaching 0. Use "get" to increment refcount. | |
| 39 | */ | |
| 40 | struct lttng_index_file *lttng_index_file_create(char *path_name, | |
| 41 | char *stream_name, int uid, int gid, uint64_t size, | |
| 42 | uint64_t count, uint32_t major, uint32_t minor); | |
| 43 | struct lttng_index_file *lttng_index_file_open(const char *path_name, | |
| 44 | const char *channel_name, uint64_t tracefile_count, | |
| 45 | uint64_t tracefile_count_current); | |
| 46 | int lttng_index_file_write(const struct lttng_index_file *index_file, | |
| 47 | const struct ctf_packet_index *element); | |
| 48 | int lttng_index_file_read(const struct lttng_index_file *index_file, | |
| 49 | struct ctf_packet_index *element); | |
| 50 | ||
| 51 | void lttng_index_file_get(struct lttng_index_file *index_file); | |
| 52 | void lttng_index_file_put(struct lttng_index_file *index_file); | |
| 309167d2 JD |
53 | |
| 54 | #endif /* _INDEX_H */ |