Commit | Line | Data |
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f3ed775e DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
d14d33bf AM |
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. | |
f3ed775e DG |
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 | * | |
d14d33bf AM |
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. | |
f3ed775e DG |
16 | */ |
17 | ||
18 | #define _GNU_SOURCE | |
a4b92340 | 19 | #include <assert.h> |
ecc48a90 | 20 | #include <ctype.h> |
f3ed775e DG |
21 | #include <popt.h> |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | #include <sys/stat.h> | |
26 | #include <sys/types.h> | |
27 | #include <time.h> | |
28 | #include <unistd.h> | |
29 | ||
37d03ff7 JRJ |
30 | #include <common/mi-lttng.h> |
31 | ||
c399183f | 32 | #include "../command.h" |
679b4943 | 33 | #include "../utils.h" |
f3ed775e | 34 | |
00e2e675 | 35 | #include <common/defaults.h> |
42224349 | 36 | #include <common/sessiond-comm/sessiond-comm.h> |
00e2e675 | 37 | #include <common/uri.h> |
81b86775 | 38 | #include <common/utils.h> |
16f6f820 | 39 | #include <lttng/snapshot.h> |
42224349 | 40 | |
f3ed775e DG |
41 | static char *opt_output_path; |
42 | static char *opt_session_name; | |
a4b92340 DG |
43 | static char *opt_url; |
44 | static char *opt_ctrl_url; | |
45 | static char *opt_data_url; | |
46 | static int opt_no_consumer; | |
96fe6b8d | 47 | static int opt_no_output; |
16f6f820 | 48 | static int opt_snapshot; |
ecc48a90 | 49 | static unsigned int opt_live_timer; |
a4b92340 | 50 | static int opt_disable_consumer; |
f3ed775e DG |
51 | |
52 | enum { | |
53 | OPT_HELP = 1, | |
679b4943 | 54 | OPT_LIST_OPTIONS, |
ecc48a90 | 55 | OPT_LIVE_TIMER, |
f3ed775e DG |
56 | }; |
57 | ||
37d03ff7 JRJ |
58 | static struct mi_writer *writer; |
59 | ||
f3ed775e DG |
60 | static struct poptOption long_options[] = { |
61 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
679b4943 SM |
62 | {"help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL}, |
63 | {"output", 'o', POPT_ARG_STRING, &opt_output_path, 0, NULL, NULL}, | |
64 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, | |
23d14dff DG |
65 | {"set-url", 'U', POPT_ARG_STRING, &opt_url, 0, 0, 0}, |
66 | {"ctrl-url", 'C', POPT_ARG_STRING, &opt_ctrl_url, 0, 0, 0}, | |
67 | {"data-url", 'D', POPT_ARG_STRING, &opt_data_url, 0, 0, 0}, | |
96fe6b8d | 68 | {"no-output", 0, POPT_ARG_VAL, &opt_no_output, 1, 0, 0}, |
2bba9e53 | 69 | {"no-consumer", 0, POPT_ARG_VAL, &opt_no_consumer, 1, 0, 0}, |
a4b92340 | 70 | {"disable-consumer", 0, POPT_ARG_VAL, &opt_disable_consumer, 1, 0, 0}, |
16f6f820 | 71 | {"snapshot", 0, POPT_ARG_VAL, &opt_snapshot, 1, 0, 0}, |
d73c5802 | 72 | {"live", 0, POPT_ARG_INT | POPT_ARGFLAG_OPTIONAL, 0, OPT_LIVE_TIMER, 0, 0}, |
f3ed775e DG |
73 | {0, 0, 0, 0, 0, 0, 0} |
74 | }; | |
75 | ||
16de1a24 DG |
76 | /* |
77 | * Please have a look at src/lib/lttng-ctl/lttng-ctl.c for more information on | |
78 | * why this declaration exists and used ONLY in for this command. | |
79 | */ | |
07424f16 | 80 | extern int _lttng_create_session_ext(const char *name, const char *url, |
ecc48a90 | 81 | const char *datetime, int live_timer); |
07424f16 | 82 | |
f3ed775e DG |
83 | /* |
84 | * usage | |
85 | */ | |
86 | static void usage(FILE *ofp) | |
87 | { | |
a4b92340 | 88 | fprintf(ofp, "usage: lttng create [NAME] [OPTIONS] \n"); |
f3ed775e | 89 | fprintf(ofp, "\n"); |
a4b92340 DG |
90 | fprintf(ofp, "Without a given NAME, the default is 'auto-<yyyymmdd>-<hhmmss>'\n"); |
91 | fprintf(ofp, "\n"); | |
92 | fprintf(ofp, "Options:\n"); | |
f3ed775e | 93 | fprintf(ofp, " -h, --help Show this help\n"); |
1c8d13c8 | 94 | fprintf(ofp, " --list-options Simple listing of options\n"); |
58a97671 | 95 | fprintf(ofp, " -o, --output PATH Specify output path for traces\n"); |
96fe6b8d | 96 | fprintf(ofp, " --no-output Traces will not be outputted\n"); |
a2d6893b | 97 | fprintf(ofp, " --snapshot Set the session in snapshot mode.\n"); |
96fe6b8d | 98 | fprintf(ofp, " Created in no-output mode and uses the URL,\n"); |
16f6f820 DG |
99 | fprintf(ofp, " if one, as the default snapshot output.\n"); |
100 | fprintf(ofp, " Every channel will be set in overwrite mode\n"); | |
101 | fprintf(ofp, " and with mmap output (splice not supported).\n"); | |
d73c5802 | 102 | fprintf(ofp, " --live [USEC] Set the session in live-reading mode.\n"); |
ecc48a90 JD |
103 | fprintf(ofp, " The delay parameter in micro-seconds is the\n"); |
104 | fprintf(ofp, " maximum time the user can wait for the data\n"); | |
d73c5802 DG |
105 | fprintf(ofp, " to be flushed. Can be set with a network\n"); |
106 | fprintf(ofp, " URL (-U or -C/-D) and must have a relayd listening.\n"); | |
107 | fprintf(ofp, " By default, %u is used for the timer and the\n", | |
108 | DEFAULT_LTTNG_LIVE_TIMER); | |
109 | fprintf(ofp, " network URL is set to net://127.0.0.1.\n"); | |
a4b92340 DG |
110 | fprintf(ofp, "\n"); |
111 | fprintf(ofp, "Extended Options:\n"); | |
112 | fprintf(ofp, "\n"); | |
113 | fprintf(ofp, "Using these options, each API call can be controlled individually.\n"); | |
114 | fprintf(ofp, "\n"); | |
115 | fprintf(ofp, " -U, --set-url=URL Set URL destination of the trace data.\n"); | |
00e2e675 | 116 | fprintf(ofp, " It is persistent for the session lifetime.\n"); |
a4b92340 DG |
117 | fprintf(ofp, " This will set both data and control URL.\n"); |
118 | fprintf(ofp, " You can change it with the enable-consumer cmd\n"); | |
119 | fprintf(ofp, " -C, --ctrl-url=URL Set control path URL. (Must use -D also)\n"); | |
120 | fprintf(ofp, " -D, --data-url=URL Set data path URL. (Must use -C also)\n"); | |
a4b92340 DG |
121 | fprintf(ofp, "\n"); |
122 | fprintf(ofp, "Please refer to the man page (lttng(1)) for more information on network\n"); | |
123 | fprintf(ofp, "streaming mechanisms and explanation of the control and data port\n"); | |
124 | fprintf(ofp, "You must have a running remote lttng-relayd for network streaming\n"); | |
125 | fprintf(ofp, "\n"); | |
126 | fprintf(ofp, "URL format is has followed:\n"); | |
127 | fprintf(ofp, "\n"); | |
128 | fprintf(ofp, " proto://[HOST|IP][:PORT1[:PORT2]][/TRACE_PATH]\n"); | |
129 | fprintf(ofp, "\n"); | |
130 | fprintf(ofp, " Supported protocols are (proto):\n"); | |
131 | fprintf(ofp, " > file://...\n"); | |
132 | fprintf(ofp, " Local filesystem full path.\n"); | |
133 | fprintf(ofp, "\n"); | |
16de1a24 | 134 | fprintf(ofp, " > net[6]://...\n"); |
a4b92340 DG |
135 | fprintf(ofp, " This will use the default network transport layer which is\n"); |
136 | fprintf(ofp, " TCP for both control (PORT1) and data port (PORT2).\n"); | |
137 | fprintf(ofp, " The default ports are respectively 5342 and 5343.\n"); | |
138 | fprintf(ofp, "\n"); | |
0ab61906 | 139 | fprintf(ofp, " > tcp[6]://...\n"); |
a4b92340 DG |
140 | fprintf(ofp, " Can only be used with -C and -D together\n"); |
141 | fprintf(ofp, "\n"); | |
142 | fprintf(ofp, "NOTE: IPv6 address MUST be enclosed in brackets '[]' (rfc2732)\n"); | |
143 | fprintf(ofp, "\n"); | |
144 | fprintf(ofp, "Examples:\n"); | |
145 | fprintf(ofp, " # lttng create -U net://192.168.1.42\n"); | |
146 | fprintf(ofp, " Uses TCP and default ports for the given destination.\n"); | |
147 | fprintf(ofp, " # lttng create -U net6://[fe80::f66d:4ff:fe53:d220]\n"); | |
148 | fprintf(ofp, " Uses TCP, default ports and IPv6.\n"); | |
149 | fprintf(ofp, " # lttng create s1 -U net://myhost.com:3229\n"); | |
150 | fprintf(ofp, " Set the consumer to the remote HOST on port 3229 for control.\n"); | |
f3ed775e DG |
151 | fprintf(ofp, "\n"); |
152 | } | |
153 | ||
37d03ff7 JRJ |
154 | /* |
155 | * Retrieve the created session and | |
156 | * mi output it of the created session based on provided argument | |
157 | * This is currently a summary of what was pretty printed and is subject to | |
158 | * enhancements. | |
159 | * str_url is a placement string for output url (snapshot or regular trace) | |
160 | */ | |
161 | static int mi_created_session(const char *session_name) | |
162 | { | |
163 | int ret, i, count, found; | |
164 | struct lttng_session *sessions; | |
165 | ||
166 | /* session_name should not be null */ | |
167 | assert(session_name); | |
168 | assert(writer); | |
169 | ||
170 | count = lttng_list_sessions(&sessions); | |
171 | if (count < 0) { | |
172 | ret = count; | |
173 | ERR("%s", lttng_strerror(ret)); | |
174 | goto error; | |
175 | } | |
176 | ||
177 | if (count == 0) { | |
178 | ERR("Error session creation failed: session %s not found", session_name); | |
179 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
180 | goto end; | |
181 | } | |
182 | ||
183 | found = 0; | |
184 | for (i = 0; i < count; i++) { | |
185 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
186 | found = 1; | |
187 | ret = mi_lttng_session(writer, &sessions[i], 0); | |
188 | if (ret) { | |
189 | goto error; | |
190 | } | |
191 | break; | |
192 | } | |
193 | } | |
194 | ||
195 | if (!found) { | |
196 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
197 | } else { | |
198 | ret = CMD_SUCCESS; | |
199 | } | |
200 | ||
201 | error: | |
202 | free(sessions); | |
203 | end: | |
204 | return ret; | |
205 | } | |
206 | ||
00e2e675 | 207 | /* |
a4b92340 | 208 | * For a session name, set the consumer URLs. |
00e2e675 | 209 | */ |
a4b92340 DG |
210 | static int set_consumer_url(const char *session_name, const char *ctrl_url, |
211 | const char *data_url) | |
00e2e675 | 212 | { |
a4b92340 DG |
213 | int ret; |
214 | struct lttng_handle *handle; | |
215 | struct lttng_domain dom; | |
216 | ||
217 | assert(session_name); | |
218 | ||
219 | /* | |
220 | * Set handle with the session name and the domain set to 0. This means to | |
221 | * the session daemon that the next action applies on the tracing session | |
222 | * rather then the domain specific session. | |
223 | */ | |
224 | memset(&dom, 0, sizeof(dom)); | |
225 | ||
226 | handle = lttng_create_handle(session_name, &dom); | |
227 | if (handle == NULL) { | |
228 | ret = CMD_FATAL; | |
229 | goto error; | |
230 | } | |
00e2e675 | 231 | |
a4b92340 DG |
232 | ret = lttng_set_consumer_url(handle, ctrl_url, data_url); |
233 | if (ret < 0) { | |
234 | goto error; | |
00e2e675 DG |
235 | } |
236 | ||
a4b92340 DG |
237 | if (ctrl_url) { |
238 | MSG("Control URL %s set for session %s", ctrl_url, session_name); | |
00e2e675 DG |
239 | } |
240 | ||
a4b92340 DG |
241 | if (data_url) { |
242 | MSG("Data URL %s set for session %s", data_url, session_name); | |
243 | } | |
244 | ||
245 | error: | |
246 | lttng_destroy_handle(handle); | |
247 | return ret; | |
248 | } | |
249 | ||
16f6f820 DG |
250 | static int add_snapshot_output(const char *session_name, const char *ctrl_url, |
251 | const char *data_url) | |
252 | { | |
253 | int ret; | |
254 | struct lttng_snapshot_output *output = NULL; | |
255 | ||
256 | assert(session_name); | |
257 | ||
258 | output = lttng_snapshot_output_create(); | |
259 | if (!output) { | |
260 | ret = CMD_FATAL; | |
261 | goto error_create; | |
262 | } | |
263 | ||
264 | if (ctrl_url) { | |
265 | ret = lttng_snapshot_output_set_ctrl_url(ctrl_url, output); | |
266 | if (ret < 0) { | |
267 | goto error; | |
268 | } | |
269 | } | |
270 | ||
271 | if (data_url) { | |
272 | ret = lttng_snapshot_output_set_data_url(data_url, output); | |
273 | if (ret < 0) { | |
274 | goto error; | |
275 | } | |
276 | } | |
277 | ||
278 | /* This call, if successful, populates the id of the output object. */ | |
279 | ret = lttng_snapshot_add_output(session_name, output); | |
280 | if (ret < 0) { | |
281 | goto error; | |
282 | } | |
283 | ||
284 | error: | |
285 | lttng_snapshot_output_destroy(output); | |
286 | error_create: | |
287 | return ret; | |
288 | } | |
289 | ||
f3ed775e | 290 | /* |
1c8d13c8 TD |
291 | * Create a tracing session. |
292 | * If no name is specified, a default name is generated. | |
f3ed775e | 293 | * |
1c8d13c8 | 294 | * Returns one of the CMD_* result constants. |
f3ed775e | 295 | */ |
a4b92340 | 296 | static int create_session(void) |
f3ed775e | 297 | { |
a4b92340 | 298 | int ret; |
07424f16 | 299 | char *session_name = NULL, *traces_path = NULL, *alloc_path = NULL; |
a4b92340 | 300 | char *alloc_url = NULL, *url = NULL, datetime[16]; |
487b253b | 301 | char session_name_date[NAME_MAX + 17], *print_str_url = NULL; |
f3ed775e DG |
302 | time_t rawtime; |
303 | struct tm *timeinfo; | |
304 | ||
d6175221 DG |
305 | /* Get date and time for automatic session name/path */ |
306 | time(&rawtime); | |
307 | timeinfo = localtime(&rawtime); | |
308 | strftime(datetime, sizeof(datetime), "%Y%m%d-%H%M%S", timeinfo); | |
309 | ||
f3ed775e DG |
310 | /* Auto session name creation */ |
311 | if (opt_session_name == NULL) { | |
07424f16 DG |
312 | ret = snprintf(session_name_date, sizeof(session_name_date), |
313 | DEFAULT_SESSION_NAME "-%s", datetime); | |
d6175221 | 314 | if (ret < 0) { |
07424f16 DG |
315 | PERROR("snprintf session name"); |
316 | goto error; | |
317 | } | |
04965770 | 318 | session_name = session_name_date; |
07424f16 | 319 | DBG("Auto session name set to %s", session_name_date); |
f3ed775e | 320 | } else { |
487b253b DG |
321 | if (strlen(opt_session_name) > NAME_MAX) { |
322 | ERR("Session name too long. Length must be lower or equal to %d", | |
323 | NAME_MAX); | |
324 | ret = LTTNG_ERR_SESSION_FAIL; | |
325 | goto error; | |
326 | } | |
4b861950 DG |
327 | /* |
328 | * Check if the session name begins with "auto-" or is exactly "auto". | |
329 | * Both are reserved for the default session name. See bug #449 to | |
330 | * understand why we need to check both here. | |
331 | */ | |
332 | if ((strncmp(opt_session_name, DEFAULT_SESSION_NAME "-", | |
333 | strlen(DEFAULT_SESSION_NAME) + 1) == 0) || | |
334 | (strncmp(opt_session_name, DEFAULT_SESSION_NAME, | |
61b35a5a | 335 | strlen(DEFAULT_SESSION_NAME)) == 0 && |
4b861950 | 336 | strlen(opt_session_name) == strlen(DEFAULT_SESSION_NAME))) { |
61b35a5a DG |
337 | ERR("%s is a reserved keyword for default session(s)", |
338 | DEFAULT_SESSION_NAME); | |
339 | ret = CMD_ERROR; | |
340 | goto error; | |
341 | } | |
f3ed775e | 342 | session_name = opt_session_name; |
07424f16 DG |
343 | ret = snprintf(session_name_date, sizeof(session_name_date), |
344 | "%s-%s", session_name, datetime); | |
345 | if (ret < 0) { | |
346 | PERROR("snprintf session name"); | |
347 | goto error; | |
348 | } | |
f3ed775e DG |
349 | } |
350 | ||
1a241656 DG |
351 | if ((!opt_ctrl_url && opt_data_url) || (opt_ctrl_url && !opt_data_url)) { |
352 | ERR("You need both control and data URL."); | |
353 | ret = CMD_ERROR; | |
354 | goto error; | |
355 | } | |
356 | ||
785d2d0d | 357 | if (opt_output_path != NULL) { |
81b86775 | 358 | traces_path = utils_expand_path(opt_output_path); |
00e2e675 DG |
359 | if (traces_path == NULL) { |
360 | ret = CMD_ERROR; | |
361 | goto error; | |
362 | } | |
363 | ||
37d03ff7 | 364 | /* Create URL string from the local file system path */ |
a4b92340 | 365 | ret = asprintf(&alloc_url, "file://%s", traces_path); |
00e2e675 | 366 | if (ret < 0) { |
a4b92340 | 367 | PERROR("asprintf url path"); |
00e2e675 DG |
368 | ret = CMD_FATAL; |
369 | goto error; | |
370 | } | |
a4b92340 DG |
371 | /* URL to use in the lttng_create_session() call */ |
372 | url = alloc_url; | |
40b03f52 | 373 | print_str_url = traces_path; |
a4b92340 DG |
374 | } else if (opt_url) { /* Handling URL (-U opt) */ |
375 | url = opt_url; | |
40b03f52 | 376 | print_str_url = url; |
1a241656 DG |
377 | } else if (opt_data_url && opt_ctrl_url) { |
378 | /* | |
379 | * With both control and data, we'll be setting the consumer URL after | |
380 | * session creation thus use no URL. | |
381 | */ | |
382 | url = NULL; | |
2bba9e53 | 383 | } else if (!opt_no_output) { |
00e2e675 | 384 | /* Auto output path */ |
feb0f3e5 | 385 | alloc_path = utils_get_home_dir(); |
f3ed775e | 386 | if (alloc_path == NULL) { |
d386b234 | 387 | ERR("HOME path not found.\n \ |
00e2e675 | 388 | Please specify an output path using -o, --output PATH"); |
f3ed775e DG |
389 | ret = CMD_FATAL; |
390 | goto error; | |
391 | } | |
d386b234 | 392 | alloc_path = strdup(alloc_path); |
f3ed775e | 393 | |
07424f16 DG |
394 | ret = asprintf(&alloc_url, |
395 | "file://%s/" DEFAULT_TRACE_DIR_NAME "/%s", | |
396 | alloc_path, session_name_date); | |
58a97671 | 397 | if (ret < 0) { |
00e2e675 DG |
398 | PERROR("asprintf trace dir name"); |
399 | ret = CMD_FATAL; | |
58a97671 DG |
400 | goto error; |
401 | } | |
00e2e675 | 402 | |
a4b92340 | 403 | url = alloc_url; |
1a241656 | 404 | print_str_url = alloc_url + strlen("file://"); |
2bba9e53 | 405 | } else { |
96fe6b8d | 406 | /* No output means --no-output or --snapshot mode. */ |
2bba9e53 | 407 | url = NULL; |
00e2e675 DG |
408 | } |
409 | ||
1a241656 | 410 | /* Use default live URL if NO url is/are found. */ |
ecc48a90 | 411 | if ((opt_live_timer && !opt_url) && (opt_live_timer && !opt_data_url)) { |
d73c5802 DG |
412 | ret = asprintf(&alloc_url, "net://127.0.0.1"); |
413 | if (ret < 0) { | |
414 | PERROR("asprintf default live URL"); | |
415 | ret = CMD_FATAL; | |
416 | goto error; | |
417 | } | |
418 | url = alloc_url; | |
419 | print_str_url = url; | |
ecc48a90 JD |
420 | } |
421 | ||
422 | if (opt_snapshot && opt_live_timer) { | |
423 | ERR("Snapshot and live modes are mutually exclusive."); | |
424 | ret = CMD_ERROR; | |
425 | goto error; | |
426 | } | |
427 | ||
16f6f820 DG |
428 | if (opt_snapshot) { |
429 | /* No output by default. */ | |
430 | const char *snapshot_url = NULL; | |
431 | ||
432 | if (opt_url) { | |
433 | snapshot_url = url; | |
434 | } else if (!opt_data_url && !opt_ctrl_url) { | |
435 | /* This is the session path that we need to use as output. */ | |
436 | snapshot_url = url; | |
437 | } | |
438 | ret = lttng_create_session_snapshot(session_name, snapshot_url); | |
ecc48a90 | 439 | } else if (opt_live_timer) { |
8960e9cd DG |
440 | const char *pathname; |
441 | ||
442 | if (opt_relayd_path) { | |
443 | pathname = opt_relayd_path; | |
444 | } else { | |
445 | pathname = INSTALL_BIN_PATH "/lttng-relayd"; | |
446 | } | |
2c521c63 DG |
447 | if (!opt_url && !opt_data_url && !check_relayd() && |
448 | spawn_relayd(pathname, 0) < 0) { | |
8960e9cd DG |
449 | goto error; |
450 | } | |
ecc48a90 | 451 | ret = lttng_create_session_live(session_name, url, opt_live_timer); |
16f6f820 | 452 | } else { |
ecc48a90 | 453 | ret = _lttng_create_session_ext(session_name, url, datetime, -1); |
16f6f820 | 454 | } |
f3ed775e | 455 | if (ret < 0) { |
ae856491 | 456 | /* Don't set ret so lttng can interpret the sessiond error. */ |
42224349 | 457 | switch (-ret) { |
f73fabfd | 458 | case LTTNG_ERR_EXIST_SESS: |
42224349 DG |
459 | WARN("Session %s already exists", session_name); |
460 | break; | |
60e835ca | 461 | default: |
60e835ca | 462 | break; |
42224349 | 463 | } |
f3ed775e DG |
464 | goto error; |
465 | } | |
466 | ||
0ab61906 | 467 | if (opt_ctrl_url && opt_data_url) { |
16f6f820 DG |
468 | if (opt_snapshot) { |
469 | ret = add_snapshot_output(session_name, opt_ctrl_url, | |
470 | opt_data_url); | |
471 | } else { | |
472 | /* Setting up control URI (-C or/and -D opt) */ | |
473 | ret = set_consumer_url(session_name, opt_ctrl_url, opt_data_url); | |
474 | } | |
a4b92340 | 475 | if (ret < 0) { |
4f50c803 DG |
476 | /* Destroy created session because the URL are not valid. */ |
477 | lttng_destroy_session(session_name); | |
a4b92340 DG |
478 | goto error; |
479 | } | |
4f50c803 DG |
480 | } |
481 | ||
482 | MSG("Session %s created.", session_name); | |
16f6f820 | 483 | if (print_str_url && !opt_snapshot) { |
4f50c803 | 484 | MSG("Traces will be written in %s", print_str_url); |
d73c5802 DG |
485 | |
486 | if (opt_live_timer) { | |
487 | MSG("Live timer set to %u usec", opt_live_timer); | |
488 | } | |
16f6f820 DG |
489 | } else if (opt_snapshot) { |
490 | if (print_str_url) { | |
491 | MSG("Default snapshot output set to: %s", print_str_url); | |
492 | } | |
493 | MSG("Snapshot mode set. Every channel enabled for that session will " | |
1daafe0d | 494 | "be set in overwrite mode and mmap output."); |
a4b92340 DG |
495 | } |
496 | ||
37d03ff7 JRJ |
497 | /* Mi output */ |
498 | if (lttng_opt_mi) { | |
499 | ret = mi_created_session(session_name); | |
500 | if (ret) { | |
501 | ret = CMD_ERROR; | |
502 | goto error; | |
503 | } | |
504 | } | |
505 | ||
58a97671 DG |
506 | /* Init lttng session config */ |
507 | ret = config_init(session_name); | |
f3ed775e | 508 | if (ret < 0) { |
27089920 | 509 | ret = CMD_ERROR; |
f3ed775e DG |
510 | goto error; |
511 | } | |
512 | ||
f3ed775e DG |
513 | ret = CMD_SUCCESS; |
514 | ||
515 | error: | |
0e428499 DG |
516 | free(alloc_url); |
517 | free(traces_path); | |
87f222b6 | 518 | free(alloc_path); |
a4b92340 DG |
519 | |
520 | if (ret < 0) { | |
521 | ERR("%s", lttng_strerror(ret)); | |
522 | } | |
f3ed775e DG |
523 | return ret; |
524 | } | |
525 | ||
526 | /* | |
74cc1d0f | 527 | * The 'create <options>' first level command |
1c8d13c8 TD |
528 | * |
529 | * Returns one of the CMD_* result constants. | |
f3ed775e DG |
530 | */ |
531 | int cmd_create(int argc, const char **argv) | |
532 | { | |
37d03ff7 | 533 | int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1; |
ecc48a90 | 534 | char *opt_arg = NULL; |
f3ed775e DG |
535 | static poptContext pc; |
536 | ||
537 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
538 | poptReadDefaultConfig(pc, 0); | |
539 | ||
540 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
541 | switch (opt) { | |
542 | case OPT_HELP: | |
27089920 | 543 | usage(stdout); |
f3ed775e | 544 | goto end; |
679b4943 SM |
545 | case OPT_LIST_OPTIONS: |
546 | list_cmd_options(stdout, long_options); | |
679b4943 | 547 | goto end; |
ecc48a90 JD |
548 | case OPT_LIVE_TIMER: |
549 | { | |
550 | unsigned long v; | |
551 | ||
552 | errno = 0; | |
553 | opt_arg = poptGetOptArg(pc); | |
d73c5802 DG |
554 | if (!opt_arg) { |
555 | /* Set up default values. */ | |
556 | opt_live_timer = (uint32_t) DEFAULT_LTTNG_LIVE_TIMER; | |
557 | DBG("Session live timer interval set to default value %d", | |
558 | opt_live_timer); | |
559 | break; | |
560 | } | |
561 | ||
ecc48a90 JD |
562 | v = strtoul(opt_arg, NULL, 0); |
563 | if (errno != 0 || !isdigit(opt_arg[0])) { | |
564 | ERR("Wrong value in --live parameter: %s", opt_arg); | |
565 | ret = CMD_ERROR; | |
566 | goto end; | |
567 | } | |
568 | if (v != (uint32_t) v) { | |
569 | ERR("32-bit overflow in --live parameter: %s", opt_arg); | |
570 | ret = CMD_ERROR; | |
571 | goto end; | |
572 | } | |
573 | opt_live_timer = (uint32_t) v; | |
574 | DBG("Session live timer interval set to %d", opt_live_timer); | |
575 | break; | |
576 | } | |
f3ed775e DG |
577 | default: |
578 | usage(stderr); | |
579 | ret = CMD_UNDEFINED; | |
580 | goto end; | |
581 | } | |
582 | } | |
583 | ||
785d2d0d | 584 | if (opt_no_consumer) { |
96fe6b8d | 585 | MSG("The option --no-consumer is obsolete. Use --no-output now."); |
785d2d0d DG |
586 | ret = CMD_WARNING; |
587 | goto end; | |
588 | } | |
589 | ||
590 | if (opt_disable_consumer) { | |
591 | MSG("The option --disable-consumer is obsolete."); | |
592 | ret = CMD_WARNING; | |
593 | goto end; | |
594 | } | |
595 | ||
37d03ff7 JRJ |
596 | |
597 | /* MI initilisation */ | |
598 | if (lttng_opt_mi) { | |
599 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
600 | if (!writer) { | |
601 | ret = -LTTNG_ERR_NOMEM; | |
602 | goto end; | |
603 | } | |
604 | ||
605 | /* Open command element */ | |
606 | ret = mi_lttng_writer_command_open(writer, | |
607 | mi_lttng_element_command_create); | |
608 | if (ret) { | |
609 | ret = CMD_ERROR; | |
610 | goto end; | |
611 | } | |
612 | ||
613 | /* Open output element */ | |
614 | ret = mi_lttng_writer_open_element(writer, | |
615 | mi_lttng_element_command_output); | |
616 | if (ret) { | |
617 | ret = CMD_ERROR; | |
618 | goto end; | |
619 | } | |
620 | } | |
f3ed775e DG |
621 | opt_session_name = (char*) poptGetArg(pc); |
622 | ||
37d03ff7 JRJ |
623 | command_ret = create_session(); |
624 | if (command_ret) { | |
625 | success = 0; | |
626 | } | |
627 | ||
628 | if (lttng_opt_mi) { | |
629 | /* Close output element */ | |
630 | ret = mi_lttng_writer_close_element(writer); | |
631 | if (ret) { | |
632 | ret = CMD_ERROR; | |
633 | goto end; | |
634 | } | |
635 | ||
636 | /* Success ? */ | |
637 | ret = mi_lttng_writer_write_element_bool(writer, | |
638 | mi_lttng_element_command_success, success); | |
639 | if (ret) { | |
640 | ret = CMD_ERROR; | |
641 | goto end; | |
642 | } | |
643 | ||
644 | /* Command element close */ | |
645 | ret = mi_lttng_writer_command_close(writer); | |
646 | if (ret) { | |
647 | ret = CMD_ERROR; | |
648 | goto end; | |
649 | } | |
650 | } | |
f3ed775e DG |
651 | |
652 | end: | |
37d03ff7 JRJ |
653 | /* Mi clean-up */ |
654 | if (writer && mi_lttng_writer_destroy(writer)) { | |
655 | /* Preserve original error code */ | |
656 | ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL; | |
657 | } | |
658 | ||
659 | /* Overwrite ret if an error occured in create_session() */ | |
660 | ret = command_ret ? command_ret : ret; | |
661 | ||
ca1c3607 | 662 | poptFreeContext(pc); |
f3ed775e DG |
663 | return ret; |
664 | } |