Commit | Line | Data |
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8c42d845 JG |
1 | /* |
2 | * Copyright (C) 2014 - Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
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, version 2 only, | |
6 | * as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along | |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | */ | |
17 | ||
6c1c0768 | 18 | #define _LGPL_SOURCE |
8c42d845 JG |
19 | #include <inttypes.h> |
20 | #include <popt.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <assert.h> | |
25 | ||
1734c658 | 26 | #include <common/mi-lttng.h> |
f40ef1d5 | 27 | #include <common/config/session-config.h> |
b6d4654a | 28 | #include <lttng/load.h> |
1734c658 | 29 | |
8c42d845 JG |
30 | #include "../command.h" |
31 | ||
32 | static char *opt_input_path; | |
fe559816 | 33 | static char *opt_override_url; |
8c42d845 JG |
34 | static int opt_force; |
35 | static int opt_load_all; | |
36 | ||
11143783 DG |
37 | static const char *session_name; |
38 | ||
8c42d845 JG |
39 | enum { |
40 | OPT_HELP = 1, | |
41 | OPT_ALL, | |
42 | OPT_FORCE, | |
13a810d5 | 43 | OPT_LIST_OPTIONS, |
8c42d845 JG |
44 | }; |
45 | ||
1734c658 JRJ |
46 | static struct mi_writer *writer; |
47 | ||
8c42d845 JG |
48 | static struct poptOption load_opts[] = { |
49 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
50 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
51 | {"all", 'a', POPT_ARG_NONE, 0, OPT_ALL, 0, 0}, | |
8c42d845 JG |
52 | {"input-path", 'i', POPT_ARG_STRING, &opt_input_path, 0, 0, 0}, |
53 | {"force", 'f', POPT_ARG_NONE, 0, OPT_FORCE, 0, 0}, | |
fe559816 | 54 | {"override-url",'U', POPT_ARG_STRING, &opt_override_url, 0, 0, 0}, |
13a810d5 | 55 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
8c42d845 JG |
56 | {0, 0, 0, 0, 0, 0, 0} |
57 | }; | |
58 | ||
1734c658 JRJ |
59 | static int mi_partial_session(const char *session_name) |
60 | { | |
61 | int ret; | |
62 | assert(writer); | |
63 | assert(session_name); | |
64 | ||
65 | /* Open session element */ | |
66 | ret = mi_lttng_writer_open_element(writer, config_element_session); | |
67 | if (ret) { | |
68 | goto end; | |
69 | } | |
70 | ||
71 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, | |
72 | session_name); | |
73 | if (ret) { | |
74 | goto end; | |
75 | } | |
76 | ||
77 | /* Closing session element */ | |
78 | ret = mi_lttng_writer_close_element(writer); | |
79 | end: | |
80 | return ret; | |
81 | } | |
82 | ||
83 | /* | |
84 | * Mi print of load command | |
85 | */ | |
86 | static int mi_load_print(const char *session_name) | |
87 | { | |
88 | int ret; | |
89 | assert(writer); | |
90 | ||
91 | if (opt_load_all) { | |
92 | /* We use a wildcard to represent all sessions */ | |
93 | session_name = "*"; | |
94 | } | |
95 | ||
96 | /* Print load element */ | |
97 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_load); | |
98 | if (ret) { | |
99 | goto end; | |
100 | } | |
101 | ||
102 | /* Print session element */ | |
103 | ret = mi_partial_session(session_name); | |
104 | if (ret) { | |
105 | goto end; | |
106 | } | |
107 | ||
108 | /* Path element */ | |
109 | if (opt_input_path) { | |
110 | ret = mi_lttng_writer_write_element_string(writer, config_element_path, | |
111 | opt_input_path); | |
112 | if (ret) { | |
113 | goto end; | |
114 | } | |
115 | } | |
116 | ||
117 | /* Close load element */ | |
118 | ret = mi_lttng_writer_close_element(writer); | |
119 | ||
120 | end: | |
121 | return ret; | |
122 | } | |
123 | ||
8c42d845 JG |
124 | /* |
125 | * The 'load <options>' first level command | |
126 | */ | |
127 | int cmd_load(int argc, const char **argv) | |
128 | { | |
b6d4654a | 129 | int ret, success; |
8c42d845 JG |
130 | int opt; |
131 | poptContext pc; | |
b6d4654a JR |
132 | struct lttng_load_session_attr *session_attr = NULL; |
133 | char *input_path = NULL; | |
8c42d845 JG |
134 | |
135 | pc = poptGetContext(NULL, argc, argv, load_opts, 0); | |
136 | poptReadDefaultConfig(pc, 0); | |
137 | ||
138 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
139 | switch (opt) { | |
140 | case OPT_HELP: | |
4ba92f18 | 141 | SHOW_HELP(); |
b6d4654a | 142 | ret = CMD_SUCCESS; |
8c42d845 JG |
143 | goto end; |
144 | case OPT_ALL: | |
145 | opt_load_all = 1; | |
146 | break; | |
13a810d5 DG |
147 | case OPT_LIST_OPTIONS: |
148 | list_cmd_options(stdout, load_opts); | |
b6d4654a | 149 | ret = CMD_SUCCESS; |
13a810d5 | 150 | goto end; |
8c42d845 JG |
151 | case OPT_FORCE: |
152 | opt_force = 1; | |
153 | break; | |
154 | default: | |
8c42d845 JG |
155 | ret = CMD_UNDEFINED; |
156 | goto end; | |
157 | } | |
158 | } | |
159 | ||
623bc34c JG |
160 | ret = lttng_session_daemon_alive(); |
161 | if (!ret) { | |
162 | ERR("No session daemon is available"); | |
163 | ret = CMD_ERROR; | |
164 | goto end; | |
165 | } | |
166 | ||
11143783 DG |
167 | if (!opt_load_all) { |
168 | session_name = poptGetArg(pc); | |
732b768a DG |
169 | if (session_name) { |
170 | DBG2("Loading session name: %s", session_name); | |
1734c658 JRJ |
171 | } else { |
172 | /* Default to load_all */ | |
173 | opt_load_all = 1; | |
11143783 | 174 | } |
8c42d845 JG |
175 | } |
176 | ||
1734c658 JRJ |
177 | /* Mi check */ |
178 | if (lttng_opt_mi) { | |
179 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
180 | if (!writer) { | |
b6d4654a | 181 | ret = CMD_ERROR; |
1734c658 JRJ |
182 | goto end; |
183 | } | |
184 | ||
185 | /* Open command element */ | |
186 | ret = mi_lttng_writer_command_open(writer, | |
187 | mi_lttng_element_command_load); | |
188 | if (ret) { | |
189 | ret = CMD_ERROR; | |
190 | goto end; | |
191 | } | |
192 | ||
193 | /* Open output element */ | |
194 | ret = mi_lttng_writer_open_element(writer, | |
195 | mi_lttng_element_command_output); | |
196 | if (ret) { | |
197 | ret = CMD_ERROR; | |
198 | goto end; | |
199 | } | |
200 | } | |
201 | ||
b6d4654a JR |
202 | /* Prepare load attributes */ |
203 | session_attr = lttng_load_session_attr_create(); | |
204 | if (!session_attr) { | |
205 | ERR("Failed to create load session attributes"); | |
206 | ret = CMD_ERROR; | |
207 | goto end; | |
208 | } | |
209 | ||
210 | /* | |
211 | * Set the input url | |
212 | * lttng_load_session_attr_set_input_url only suppports absolute path. | |
213 | * Use realpath to resolve any relative path. | |
214 | * */ | |
215 | if (opt_input_path) { | |
216 | input_path = realpath(opt_input_path, NULL); | |
217 | if (!input_path) { | |
218 | PERROR("Invalid input path"); | |
219 | ret = CMD_ERROR; | |
220 | goto end; | |
221 | } | |
222 | } else { | |
223 | input_path = NULL; | |
224 | } | |
225 | ||
226 | ret = lttng_load_session_attr_set_input_url(session_attr, | |
227 | input_path); | |
228 | if (ret) { | |
229 | ERR("Invalid input path"); | |
230 | ret = CMD_ERROR; | |
231 | goto end; | |
232 | } | |
233 | ||
234 | /* Set the session name. NULL means all sessions should be loaded */ | |
235 | ret = lttng_load_session_attr_set_session_name(session_attr, | |
236 | session_name); | |
237 | if (ret) { | |
238 | ERR("Invalid session name"); | |
239 | ret = CMD_ERROR; | |
240 | goto end; | |
241 | } | |
242 | ||
243 | /* Set the overwrite attribute */ | |
244 | ret = lttng_load_session_attr_set_overwrite(session_attr, opt_force); | |
245 | if (ret) { | |
246 | ERR("Force argument could not be applied"); | |
247 | ret = CMD_ERROR; | |
248 | goto end; | |
249 | } | |
250 | ||
fe559816 JR |
251 | /* Set the overrides attributes if any */ |
252 | if (opt_override_url) { | |
253 | ret = lttng_load_session_attr_set_override_url(session_attr, | |
254 | opt_override_url); | |
255 | if (ret) { | |
256 | ERR("Url override is invalid"); | |
257 | goto end; | |
258 | } | |
259 | } | |
260 | ||
b6d4654a JR |
261 | ret = lttng_load_session(session_attr); |
262 | if (ret) { | |
263 | ERR("%s", lttng_strerror(ret)); | |
1734c658 | 264 | success = 0; |
b6d4654a | 265 | ret = CMD_ERROR; |
279d6193 DG |
266 | } else { |
267 | if (opt_load_all) { | |
268 | MSG("All sessions have been loaded successfully"); | |
732b768a | 269 | } else if (session_name) { |
b6d4654a | 270 | ret = config_init((char *) session_name); |
8e525b95 DG |
271 | if (ret < 0) { |
272 | ret = CMD_WARNING; | |
273 | } | |
279d6193 | 274 | MSG("Session %s has been loaded successfully", session_name); |
732b768a DG |
275 | } else { |
276 | MSG("Session has been loaded successfully"); | |
279d6193 | 277 | } |
fe559816 JR |
278 | |
279 | if (opt_override_url) { | |
280 | MSG("Session output url overridden with %s", opt_override_url); | |
281 | } | |
1734c658 | 282 | success = 1; |
b6d4654a | 283 | ret = CMD_SUCCESS; |
1734c658 JRJ |
284 | } |
285 | ||
286 | /* Mi Printing and closing */ | |
287 | if (lttng_opt_mi) { | |
288 | /* Mi print */ | |
289 | ret = mi_load_print(session_name); | |
290 | if (ret) { | |
291 | ret = CMD_ERROR; | |
292 | goto end; | |
293 | } | |
294 | ||
295 | /* Close output element */ | |
296 | ret = mi_lttng_writer_close_element(writer); | |
297 | if (ret) { | |
298 | ret = CMD_ERROR; | |
299 | goto end; | |
300 | } | |
301 | ||
302 | /* Success ? */ | |
303 | ret = mi_lttng_writer_write_element_bool(writer, | |
304 | mi_lttng_element_command_success, success); | |
305 | if (ret) { | |
306 | ret = CMD_ERROR; | |
307 | goto end; | |
308 | } | |
309 | ||
310 | /* Command element close */ | |
311 | ret = mi_lttng_writer_command_close(writer); | |
312 | if (ret) { | |
313 | ret = CMD_ERROR; | |
314 | goto end; | |
315 | } | |
8c42d845 JG |
316 | } |
317 | end: | |
1734c658 | 318 | if (writer && mi_lttng_writer_destroy(writer)) { |
b6d4654a | 319 | ERR("Failed to destroy mi lttng writer"); |
1734c658 JRJ |
320 | } |
321 | ||
b6d4654a JR |
322 | lttng_load_session_attr_destroy(session_attr); |
323 | free(input_path); | |
8c42d845 JG |
324 | poptFreeContext(pc); |
325 | return ret; | |
326 | } |