Fix: Initialize ret to zero
[lttng-tools.git] / include / lttng / location.h
1 /*
2 * Copyright (C) 2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
3 *
4 * This library is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU Lesser General Public License, version 2.1 only,
6 * as published by the Free Software Foundation.
7 *
8 * This library 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 Lesser General Public License
11 * for more details.
12 *
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this library; if not, write to the Free Software Foundation,
15 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16 */
17
18 #ifndef LTTNG_LOCATION_H
19 #define LTTNG_LOCATION_H
20
21 #include <stdint.h>
22
23 #ifdef __cplusplus
24 extern "C" {
25 #endif
26
27 enum lttng_trace_archive_location_type {
28 LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_UNKNOWN = 0,
29 LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_LOCAL = 1,
30 LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_RELAY = 2,
31 };
32
33 enum lttng_trace_archive_location_status {
34 LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK = 0,
35 LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_INVALID = -1,
36 LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_ERROR = -2,
37 };
38
39 enum lttng_trace_archive_location_relay_protocol_type {
40 LTTNG_TRACE_ARCHIVE_LOCATION_RELAY_PROTOCOL_TYPE_TCP = 0,
41 };
42
43 /*
44 * Location of a trace archive.
45 */
46 struct lttng_trace_archive_location;
47
48 /*
49 * Get a trace archive location's type.
50 */
51 extern enum lttng_trace_archive_location_type
52 lttng_trace_archive_location_get_type(
53 const struct lttng_trace_archive_location *location);
54
55 /*
56 * Get the absolute path of a local trace archive location.
57 *
58 * The trace archive location maintains ownership of the absolute_path.
59 */
60 extern enum lttng_trace_archive_location_status
61 lttng_trace_archive_location_local_get_absolute_path(
62 const struct lttng_trace_archive_location *location,
63 const char **absolute_path);
64
65 /*
66 * Get the host address of the relay daemon associated to this trace archive
67 * location. May be a hostname, IPv4, or IPv6 address.
68 *
69 * The trace archive location maintains ownership of relay_host.
70 */
71 extern enum lttng_trace_archive_location_status
72 lttng_trace_archive_location_relay_get_host(
73 const struct lttng_trace_archive_location *location,
74 const char **relay_host);
75
76 /*
77 * Get the control port of the relay daemon associated to this trace archive
78 * location.
79 */
80 extern enum lttng_trace_archive_location_status
81 lttng_trace_archive_location_relay_get_control_port(
82 const struct lttng_trace_archive_location *location,
83 uint16_t *control_port);
84
85 /*
86 * Get the data port of the relay daemon associated to this trace archive
87 * location.
88 */
89 extern enum lttng_trace_archive_location_status
90 lttng_trace_archive_location_relay_get_data_port(
91 const struct lttng_trace_archive_location *location,
92 uint16_t *data_port);
93
94 /*
95 * Get the protocol used to communicate with the relay daemon associated to this
96 * trace archive location.
97 */
98 extern enum lttng_trace_archive_location_status
99 lttng_trace_archive_location_relay_get_protocol_type(
100 const struct lttng_trace_archive_location *location,
101 enum lttng_trace_archive_location_relay_protocol_type *protocol);
102
103 /*
104 * Get path relative to the relay daemon's current output path.
105 *
106 * The trace archive location maintains ownership of relative_path.
107 */
108 extern enum lttng_trace_archive_location_status
109 lttng_trace_archive_location_relay_get_relative_path(
110 const struct lttng_trace_archive_location *location,
111 const char **relative_path);
112
113 #ifdef __cplusplus
114 }
115 #endif
116
117 #endif /* LTTNG_LOCATION_H */
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