projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 6dc3064a DG |
1 | /* |
| 2 | * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com> | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify it | |
| 5 | * under the terms of the GNU General Public License, version 2 only, as | |
| 6 | * published by the Free Software Foundation. | |
| 7 | * | |
| 8 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 11 | * more details. | |
| 12 | * | |
| 13 | * You should have received a copy of the GNU General Public License along with | |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
| 15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 16 | */ | |
| 17 | ||
| 18 | #ifndef SNAPSHOT_H | |
| 19 | #define SNAPSHOT_H | |
| 20 | ||
| 21 | #include <limits.h> | |
| 22 | #include <stdint.h> | |
| 23 | ||
| 24 | #include <common/common.h> | |
| 25 | #include <common/hashtable/hashtable.h> | |
| 26 | #include <common/uri.h> | |
| 27 | ||
| 28 | #include "consumer.h" | |
| 29 | ||
| 30 | struct consumer_output; | |
| 31 | ||
| 32 | struct snapshot_output { | |
| 33 | uint32_t id; | |
| 34 | uint64_t max_size; | |
| 1bfe7328 DG |
35 | /* Number of snapshot taken with that output. */ |
| 36 | uint64_t nb_snapshot; | |
| 6dc3064a DG |
37 | char name[NAME_MAX]; |
| 38 | struct consumer_output *consumer; | |
| 39 | int kernel_sockets_copied; | |
| 40 | int ust_sockets_copied; | |
| 10a50311 JD |
41 | /* |
| 42 | * Contains the string with "<date>-<time>" for when the snapshot command | |
| 43 | * is triggered. This is to make sure every streams will use the same time | |
| 44 | * for the directory output. | |
| 45 | */ | |
| 46 | char datetime[16]; | |
| 6dc3064a DG |
47 | |
| 48 | /* Indexed by ID. */ | |
| 49 | struct lttng_ht_node_ulong node; | |
| 50 | }; | |
| 51 | ||
| 52 | struct snapshot { | |
| 53 | unsigned long next_output_id; | |
| 54 | size_t nb_output; | |
| 1bfe7328 DG |
55 | /* |
| 56 | * Number of snapshot taken for that object. This value is used with a | |
| 57 | * temporary output of a snapshot record. | |
| 58 | */ | |
| 59 | uint64_t nb_snapshot; | |
| 6dc3064a DG |
60 | struct lttng_ht *output_ht; |
| 61 | }; | |
| 62 | ||
| 63 | /* Snapshot object. */ | |
| 64 | struct snapshot *snapshot_alloc(void); | |
| 65 | void snapshot_destroy(struct snapshot *obj); | |
| 66 | int snapshot_init(struct snapshot *obj); | |
| 67 | void snapshot_delete_output(struct snapshot *snapshot, | |
| 68 | struct snapshot_output *output); | |
| 69 | void snapshot_add_output(struct snapshot *snapshot, | |
| 70 | struct snapshot_output *output); | |
| 71 | ||
| 72 | /* Snapshot output object. */ | |
| 73 | struct snapshot_output *snapshot_output_alloc(void); | |
| 74 | void snapshot_output_destroy(struct snapshot_output *obj); | |
| 75 | int snapshot_output_init(uint64_t max_size, const char *name, | |
| 76 | const char *ctrl_url, const char *data_url, | |
| 77 | struct consumer_output *consumer, struct snapshot_output *output, | |
| 78 | struct snapshot *snapshot); | |
| 27babd3a DG |
79 | int snapshot_output_init_with_uri(uint64_t max_size, const char *name, |
| 80 | struct lttng_uri *uris, size_t nb_uri, | |
| 81 | struct consumer_output *consumer, struct snapshot_output *output, | |
| 82 | struct snapshot *snapshot); | |
| 6dc3064a DG |
83 | struct snapshot_output *snapshot_find_output_by_id(uint32_t id, |
| 84 | struct snapshot *snapshot); | |
| eb240553 DG |
85 | struct snapshot_output *snapshot_find_output_by_name(const char *name, |
| 86 | struct snapshot *snapshot); | |
| 6dc3064a DG |
87 | |
| 88 | #endif /* SNAPSHOT_H */ |