8012a1e4ea58303456f4d6c23fb0e624e3f7278f
[lttng-tools.git] / include / lttng / snapshot-internal.h
1 /*
2 * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
3 *
4 * SPDX-License-Identifier: LGPL-2.1-only
5 *
6 */
7
8 #ifndef LTTNG_SNAPSHOT_INTERNAL_ABI_H
9 #define LTTNG_SNAPSHOT_INTERNAL_ABI_H
10
11 #include <limits.h>
12 #include <stdint.h>
13 #include <lttng/constant.h>
14
15 /*
16 * Object used for the snapshot API. This is opaque to the public library.
17 */
18 struct lttng_snapshot_output {
19 /*
20 * ID of the snapshot output. This is only used when they are listed. It is
21 * assigned by the session daemon so when adding an output, this value will
22 * not be used.
23 */
24 uint32_t id;
25 /*
26 * Maximum size in bytes of the snapshot meaning the total size of all
27 * stream combined. A value of 0 is unlimited.
28 */
29 uint64_t max_size;
30 /* Name of the output so it can be recognized easily when listing them. */
31 char name[LTTNG_NAME_MAX];
32 /* Destination of the output. See lttng(1) for URL format. */
33 char ctrl_url[PATH_MAX];
34 /* Destination of the output. See lttng(1) for URL format. */
35 char data_url[PATH_MAX];
36 };
37
38 /*
39 * Snapshot output list object opaque to the user.
40 */
41 struct lttng_snapshot_output_list {
42 /*
43 * The position in the output array. This is changed by a get_next call.
44 */
45 int index;
46
47 /*
48 * Number of element in the array.
49 */
50 size_t count;
51
52 /*
53 * Contains snapshot output object.
54 */
55 struct lttng_snapshot_output *array;
56 };
57
58 #endif /* LTTNG_SNAPSHOT_INTERNAL_ABI_H */
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