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f3ed775e DG |
1 | /* |
2 | * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | */ | |
18 | ||
19 | #include <stdlib.h> | |
20 | ||
21 | #include <lttng/lttng.h> | |
22 | ||
beb8c75a | 23 | #include "conf.h" |
f3ed775e DG |
24 | |
25 | /* | |
26 | * get_config_file_path | |
27 | * | |
28 | * Return absolute path to the configuration file. | |
29 | */ | |
30 | char *get_config_file_path(void) | |
31 | { | |
32 | char *alloc_path, *path = NULL; | |
33 | ||
34 | /* Get path to config directory */ | |
35 | alloc_path = config_get_default_path(); | |
36 | if (alloc_path == NULL) { | |
37 | goto error; | |
38 | } | |
39 | ||
40 | /* Get path to config file */ | |
41 | path = config_generate_dir_path(alloc_path); | |
42 | if (path == NULL) { | |
43 | goto free_alloc_path; | |
44 | } | |
45 | ||
46 | free_alloc_path: | |
47 | free(alloc_path); | |
48 | error: | |
49 | return path; | |
50 | } | |
51 | ||
52 | /* | |
53 | * get_session_name | |
54 | * | |
55 | * Return allocated string with the session name found in the config | |
56 | * directory. | |
57 | */ | |
58 | char *get_session_name(void) | |
59 | { | |
60 | char *path, *session_name = NULL; | |
61 | ||
62 | /* Get path to config file */ | |
63 | path = get_config_file_path(); | |
64 | if (path == NULL) { | |
65 | goto error; | |
66 | } | |
67 | ||
68 | /* Get session name from config */ | |
69 | session_name = config_read_session_name(path); | |
70 | if (session_name == NULL) { | |
71 | goto free_path; | |
72 | } | |
73 | ||
74 | free_path: | |
75 | free(path); | |
76 | error: | |
77 | return session_name; | |
78 | } | |
79 | ||
80 | /* | |
81 | * set_session_name | |
82 | * | |
83 | * Get session name and set it for the lttng control lib. | |
84 | */ | |
85 | int set_session_name(void) | |
86 | { | |
87 | int ret; | |
88 | char *session_name; | |
89 | ||
90 | session_name = get_session_name(); | |
91 | if (session_name == NULL) { | |
92 | ret = -1; | |
93 | goto error; | |
94 | } | |
95 | ||
96 | lttng_set_session_name(session_name); | |
97 | free(session_name); | |
98 | ||
99 | ret = 0; | |
100 | ||
101 | error: | |
102 | return ret; | |
103 | } |