Commit | Line | Data |
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00c76cea JG |
1 | /* |
2 | * Copyright (C) 2013 - 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 | ||
6c1c0768 | 18 | #define _LGPL_SOURCE |
00c76cea JG |
19 | #include <assert.h> |
20 | #include <string.h> | |
21 | ||
22 | #include <lttng/lttng-error.h> | |
23 | #include <lttng/save.h> | |
24 | #include <lttng/save-internal.h> | |
25 | #include <common/sessiond-comm/sessiond-comm.h> | |
26 | ||
27 | #include "lttng-ctl-helper.h" | |
28 | ||
29 | struct lttng_save_session_attr *lttng_save_session_attr_create(void) | |
30 | { | |
31 | return zmalloc(sizeof(struct lttng_save_session_attr)); | |
32 | } | |
33 | ||
34 | void lttng_save_session_attr_destroy(struct lttng_save_session_attr *output) | |
35 | { | |
36 | if (output) { | |
37 | free(output); | |
38 | } | |
39 | } | |
40 | ||
41 | const char *lttng_save_session_attr_get_session_name( | |
42 | struct lttng_save_session_attr *attr) | |
43 | { | |
44 | const char *ret = NULL; | |
45 | ||
46 | if (attr && attr->session_name[0]) { | |
47 | ret = attr->session_name; | |
48 | } | |
49 | ||
50 | return ret; | |
51 | } | |
52 | ||
53 | const char *lttng_save_session_attr_get_output_url( | |
54 | struct lttng_save_session_attr *attr) | |
55 | { | |
56 | const char *ret = NULL; | |
57 | ||
58 | if (attr && attr->configuration_url[0]) { | |
59 | ret = attr->configuration_url; | |
60 | } | |
61 | ||
62 | return ret; | |
63 | } | |
64 | ||
65 | int lttng_save_session_attr_get_overwrite( | |
66 | struct lttng_save_session_attr *attr) | |
67 | { | |
68 | return attr ? attr->overwrite : -LTTNG_ERR_INVALID; | |
69 | } | |
70 | ||
30f9c327 JG |
71 | int lttng_save_session_attr_get_omit_name( |
72 | struct lttng_save_session_attr *attr) | |
73 | { | |
74 | return attr ? attr->omit_name : -LTTNG_ERR_INVALID; | |
75 | } | |
76 | ||
77 | int lttng_save_session_attr_get_omit_output( | |
78 | struct lttng_save_session_attr *attr) | |
79 | { | |
80 | return attr ? attr->omit_output : -LTTNG_ERR_INVALID; | |
81 | } | |
82 | ||
00c76cea JG |
83 | int lttng_save_session_attr_set_session_name( |
84 | struct lttng_save_session_attr *attr, const char *session_name) | |
85 | { | |
86 | int ret = 0; | |
87 | ||
88 | if (!attr) { | |
89 | ret = -LTTNG_ERR_INVALID; | |
90 | goto error; | |
91 | } | |
92 | ||
93 | if (session_name) { | |
94 | size_t len; | |
95 | ||
96 | len = strlen(session_name); | |
36d2e35d | 97 | if (len >= LTTNG_NAME_MAX) { |
00c76cea JG |
98 | ret = -LTTNG_ERR_INVALID; |
99 | goto error; | |
100 | } | |
101 | ||
102 | strncpy(attr->session_name, session_name, len); | |
103 | } else { | |
104 | attr->session_name[0] = '\0'; | |
105 | } | |
106 | error: | |
107 | return ret; | |
108 | } | |
109 | ||
110 | int lttng_save_session_attr_set_output_url( | |
111 | struct lttng_save_session_attr *attr, const char *url) | |
112 | { | |
113 | int ret = 0; | |
106d4b46 JRJ |
114 | size_t len; |
115 | ssize_t size; | |
b1a95f61 | 116 | struct lttng_uri *uris = NULL; |
00c76cea JG |
117 | |
118 | if (!attr) { | |
119 | ret = -LTTNG_ERR_INVALID; | |
120 | goto error; | |
121 | } | |
122 | ||
b1a95f61 DG |
123 | if (!url) { |
124 | attr->configuration_url[0] = '\0'; | |
125 | ret = 0; | |
126 | goto end; | |
127 | } | |
00c76cea | 128 | |
b1a95f61 DG |
129 | len = strlen(url); |
130 | if (len >= PATH_MAX) { | |
131 | ret = -LTTNG_ERR_INVALID; | |
132 | goto error; | |
133 | } | |
00c76cea | 134 | |
b1a95f61 DG |
135 | size = uri_parse_str_urls(url, NULL, &uris); |
136 | if (size <= 0 || uris[0].dtype != LTTNG_DST_PATH) { | |
137 | ret = -LTTNG_ERR_INVALID; | |
138 | goto error; | |
00c76cea | 139 | } |
b1a95f61 DG |
140 | |
141 | /* Copy string plus the NULL terminated byte. */ | |
142 | lttng_ctl_copy_string(attr->configuration_url, uris[0].dst.path, | |
143 | sizeof(attr->configuration_url)); | |
144 | ||
145 | end: | |
00c76cea | 146 | error: |
b1a95f61 | 147 | free(uris); |
00c76cea JG |
148 | return ret; |
149 | } | |
150 | ||
151 | int lttng_save_session_attr_set_overwrite( | |
152 | struct lttng_save_session_attr *attr, int overwrite) | |
153 | { | |
154 | int ret = 0; | |
155 | ||
156 | if (!attr) { | |
157 | ret = -LTTNG_ERR_INVALID; | |
158 | goto end; | |
159 | } | |
160 | ||
161 | attr->overwrite = !!overwrite; | |
162 | end: | |
163 | return ret; | |
164 | } | |
165 | ||
30f9c327 JG |
166 | int lttng_save_session_attr_set_omit_name( |
167 | struct lttng_save_session_attr *attr, int omit_name) | |
168 | { | |
169 | int ret = 0; | |
170 | ||
171 | if (!attr) { | |
172 | ret = -LTTNG_ERR_INVALID; | |
173 | goto end; | |
174 | } | |
175 | ||
176 | attr->omit_name = !!omit_name; | |
177 | end: | |
178 | return ret; | |
179 | } | |
180 | ||
181 | int lttng_save_session_attr_set_omit_output( | |
182 | struct lttng_save_session_attr *attr, int omit_output) | |
183 | { | |
184 | int ret = 0; | |
185 | ||
186 | if (!attr) { | |
187 | ret = -LTTNG_ERR_INVALID; | |
188 | goto end; | |
189 | } | |
190 | ||
191 | attr->omit_output = !!omit_output; | |
192 | end: | |
193 | return ret; | |
194 | } | |
195 | ||
00c76cea JG |
196 | /* |
197 | * The lttng-ctl API does not expose all the information needed to save the | |
198 | * session configurations. Thus, we must send a save command to the session | |
199 | * daemon which will, in turn, save its current session configuration. | |
200 | */ | |
201 | int lttng_save_session(struct lttng_save_session_attr *attr) | |
202 | { | |
203 | struct lttcomm_session_msg lsm; | |
204 | int ret; | |
205 | ||
206 | if (!attr) { | |
207 | ret = -LTTNG_ERR_INVALID; | |
208 | goto end; | |
209 | } | |
210 | ||
211 | memset(&lsm, 0, sizeof(lsm)); | |
212 | lsm.cmd_type = LTTNG_SAVE_SESSION; | |
213 | ||
214 | memcpy(&lsm.u.save_session.attr, attr, | |
215 | sizeof(struct lttng_save_session_attr)); | |
216 | ret = lttng_ctl_ask_sessiond(&lsm, NULL); | |
217 | end: | |
218 | return ret; | |
219 | } |