| 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 | |
| 23 | #include "conf.h" |
| 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 | } |