2 * Copyright (C) 2014 - Jonathan Rajotte <jonathan.r.julien@gmail.com>
3 * - Olivier Cotte <olivier.cotte@polymtl.ca>
4 * Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License, version 2 only, as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc., 51
17 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 #include <common/config/session-config.h>
22 #include <common/defaults.h>
23 #include <lttng/snapshot-internal.h>
24 #include <lttng/channel.h>
29 #define MI_SCHEMA_MAJOR_VERSION 3
30 #define MI_SCHEMA_MINOR_VERSION 0
32 /* Machine interface namespace URI */
33 LTTNG_HIDDEN
const char * const mi_lttng_xmlns
= "xmlns";
34 LTTNG_HIDDEN
const char * const mi_lttng_xmlns_xsi
= "xmlns:xsi";
35 LTTNG_HIDDEN
const char * const mi_lttng_w3_schema_uri
= "http://www.w3.org/2001/XMLSchema-instance";
36 LTTNG_HIDDEN
const char * const mi_lttng_schema_location
= "xsi:schemaLocation";
37 LTTNG_HIDDEN
const char * const mi_lttng_schema_location_uri
=
38 DEFAULT_LTTNG_MI_NAMESPACE
" "
39 "http://lttng.org/xml/schemas/lttng-mi/" XSTR(MI_SCHEMA_MAJOR_VERSION
)
40 "/lttng-mi-" XSTR(MI_SCHEMA_MAJOR_VERSION
) "."
41 XSTR(MI_SCHEMA_MINOR_VERSION
) ".xsd";
42 LTTNG_HIDDEN
const char * const mi_lttng_schema_version
= "schemaVersion";
43 LTTNG_HIDDEN
const char * const mi_lttng_schema_version_value
= XSTR(MI_SCHEMA_MAJOR_VERSION
)
44 "." XSTR(MI_SCHEMA_MINOR_VERSION
);
46 /* Strings related to command */
47 const char * const mi_lttng_element_command
= "command";
48 const char * const mi_lttng_element_command_action
= "snapshot_action";
49 const char * const mi_lttng_element_command_add_context
= "add-context";
50 const char * const mi_lttng_element_command_create
= "create";
51 const char * const mi_lttng_element_command_destroy
= "destroy";
52 const char * const mi_lttng_element_command_disable_channel
= "disable-channel";
53 const char * const mi_lttng_element_command_disable_event
= "disable-event";
54 const char * const mi_lttng_element_command_enable_channels
= "enable-channel";
55 const char * const mi_lttng_element_command_enable_event
= "enable-event";
56 const char * const mi_lttng_element_command_list
= "list";
57 const char * const mi_lttng_element_command_load
= "load";
58 LTTNG_HIDDEN
const char * const mi_lttng_element_command_metadata
= "metadata";
59 LTTNG_HIDDEN
const char * const mi_lttng_element_command_metadata_action
= "metadata_action";
60 LTTNG_HIDDEN
const char * const mi_lttng_element_command_regenerate
= "regenerate";
61 LTTNG_HIDDEN
const char * const mi_lttng_element_command_regenerate_action
= "regenerate_action";
62 const char * const mi_lttng_element_command_name
= "name";
63 const char * const mi_lttng_element_command_output
= "output";
64 const char * const mi_lttng_element_command_save
= "save";
65 const char * const mi_lttng_element_command_set_session
= "set-session";
66 const char * const mi_lttng_element_command_snapshot
= "snapshot";
67 const char * const mi_lttng_element_command_snapshot_add
= "add_snapshot";
68 const char * const mi_lttng_element_command_snapshot_del
= "del_snapshot";
69 const char * const mi_lttng_element_command_snapshot_list
= "list_snapshot";
70 const char * const mi_lttng_element_command_snapshot_record
= "record_snapshot";
71 const char * const mi_lttng_element_command_start
= "start";
72 const char * const mi_lttng_element_command_stop
= "stop";
73 const char * const mi_lttng_element_command_success
= "success";
74 const char * const mi_lttng_element_command_track
= "track";
75 const char * const mi_lttng_element_command_untrack
= "untrack";
76 const char * const mi_lttng_element_command_version
= "version";
77 const char * const mi_lttng_element_command_rotate
= "rotate";
78 const char * const mi_lttng_element_command_enable_rotation
= "enable-rotation";
79 const char * const mi_lttng_element_command_disable_rotation
= "disable-rotation";
81 /* Strings related to version command */
82 const char * const mi_lttng_element_version
= "version";
83 const char * const mi_lttng_element_version_commit
= "commit";
84 const char * const mi_lttng_element_version_description
= "description";
85 const char * const mi_lttng_element_version_license
= "license";
86 const char * const mi_lttng_element_version_major
= "major";
87 const char * const mi_lttng_element_version_minor
= "minor";
88 const char * const mi_lttng_element_version_patch_level
= "patchLevel";
89 const char * const mi_lttng_element_version_str
= "string";
90 const char * const mi_lttng_element_version_web
= "url";
92 /* String related to a lttng_event_field */
93 const char * const mi_lttng_element_event_field
= "event_field";
94 const char * const mi_lttng_element_event_fields
= "event_fields";
96 /* String related to lttng_event_perf_counter_ctx */
97 const char * const mi_lttng_element_perf_counter_context
= "perf";
99 /* Strings related to pid */
100 const char * const mi_lttng_element_pid_id
= "id";
102 /* Strings related to save command */
103 const char * const mi_lttng_element_save
= "save";
105 /* Strings related to load command */
106 const char * const mi_lttng_element_load
= "load";
107 LTTNG_HIDDEN
const char * const mi_lttng_element_load_overrides
= "overrides";
108 LTTNG_HIDDEN
const char * const mi_lttng_element_load_override_url
= "url";
110 /* General elements of mi_lttng */
111 const char * const mi_lttng_element_empty
= "";
112 const char * const mi_lttng_element_id
= "id";
113 const char * const mi_lttng_element_nowrite
= "nowrite";
114 const char * const mi_lttng_element_success
= "success";
115 const char * const mi_lttng_element_type_enum
= "ENUM";
116 const char * const mi_lttng_element_type_float
= "FLOAT";
117 const char * const mi_lttng_element_type_integer
= "INTEGER";
118 const char * const mi_lttng_element_type_other
= "OTHER";
119 const char * const mi_lttng_element_type_string
= "STRING";
121 /* String related to loglevel */
122 const char * const mi_lttng_loglevel_str_alert
= "TRACE_ALERT";
123 const char * const mi_lttng_loglevel_str_crit
= "TRACE_CRIT";
124 const char * const mi_lttng_loglevel_str_debug
= "TRACE_DEBUG";
125 const char * const mi_lttng_loglevel_str_debug_function
= "TRACE_DEBUG_FUNCTION";
126 const char * const mi_lttng_loglevel_str_debug_line
= "TRACE_DEBUG_LINE";
127 const char * const mi_lttng_loglevel_str_debug_module
= "TRACE_DEBUG_MODULE";
128 const char * const mi_lttng_loglevel_str_debug_process
= "TRACE_DEBUG_PROCESS";
129 const char * const mi_lttng_loglevel_str_debug_program
= "TRACE_DEBUG_PROGRAM";
130 const char * const mi_lttng_loglevel_str_debug_system
= "TRACE_DEBUG_SYSTEM";
131 const char * const mi_lttng_loglevel_str_debug_unit
= "TRACE_DEBUG_UNIT";
132 const char * const mi_lttng_loglevel_str_emerg
= "TRACE_EMERG";
133 const char * const mi_lttng_loglevel_str_err
= "TRACE_ERR";
134 const char * const mi_lttng_loglevel_str_info
= "TRACE_INFO";
135 const char * const mi_lttng_loglevel_str_notice
= "TRACE_NOTICE";
136 const char * const mi_lttng_loglevel_str_unknown
= "UNKNOWN";
137 const char * const mi_lttng_loglevel_str_warning
= "TRACE_WARNING";
139 /* String related to loglevel JUL */
140 const char * const mi_lttng_loglevel_str_jul_all
= "JUL_ALL";
141 const char * const mi_lttng_loglevel_str_jul_config
= "JUL_CONFIG";
142 const char * const mi_lttng_loglevel_str_jul_fine
= "JUL_FINE";
143 const char * const mi_lttng_loglevel_str_jul_finer
= "JUL_FINER";
144 const char * const mi_lttng_loglevel_str_jul_finest
= "JUL_FINEST";
145 const char * const mi_lttng_loglevel_str_jul_info
= "JUL_INFO";
146 const char * const mi_lttng_loglevel_str_jul_off
= "JUL_OFF";
147 const char * const mi_lttng_loglevel_str_jul_severe
= "JUL_SEVERE";
148 const char * const mi_lttng_loglevel_str_jul_warning
= "JUL_WARNING";
150 /* String related to loglevel LOG4J */
151 const char * const mi_lttng_loglevel_str_log4j_off
= "LOG4J_OFF";
152 const char * const mi_lttng_loglevel_str_log4j_fatal
= "LOG4J_FATAL";
153 const char * const mi_lttng_loglevel_str_log4j_error
= "LOG4J_ERROR";
154 const char * const mi_lttng_loglevel_str_log4j_warn
= "LOG4J_WARN";
155 const char * const mi_lttng_loglevel_str_log4j_info
= "LOG4J_INFO";
156 const char * const mi_lttng_loglevel_str_log4j_debug
= "LOG4J_DEBUG";
157 const char * const mi_lttng_loglevel_str_log4j_trace
= "LOG4J_TRACE";
158 const char * const mi_lttng_loglevel_str_log4j_all
= "LOG4J_ALL";
160 /* String related to loglevel Python */
161 const char * const mi_lttng_loglevel_str_python_critical
= "PYTHON_CRITICAL";
162 const char * const mi_lttng_loglevel_str_python_error
= "PYTHON_ERROR";
163 const char * const mi_lttng_loglevel_str_python_warning
= "PYTHON_WARNING";
164 const char * const mi_lttng_loglevel_str_python_info
= "PYTHON_INFO";
165 const char * const mi_lttng_loglevel_str_python_debug
= "PYTHON_DEBUG";
166 const char * const mi_lttng_loglevel_str_python_notset
= "PYTHON_NOTSET";
168 /* String related to loglevel type */
169 const char * const mi_lttng_loglevel_type_all
= "ALL";
170 const char * const mi_lttng_loglevel_type_range
= "RANGE";
171 const char * const mi_lttng_loglevel_type_single
= "SINGLE";
172 const char * const mi_lttng_loglevel_type_unknown
= "UNKNOWN";
174 /* String related to a lttng_snapshot_output */
175 const char * const mi_lttng_element_snapshot_ctrl_url
= "ctrl_url";
176 const char * const mi_lttng_element_snapshot_data_url
= "data_url";
177 const char * const mi_lttng_element_snapshot_max_size
= "max_size";
178 const char * const mi_lttng_element_snapshot_n_ptr
= "n_ptr";
179 const char * const mi_lttng_element_snapshot_session_name
= "session_name";
180 const char * const mi_lttng_element_snapshots
= "snapshots";
182 /* String related to track/untrack command */
183 const char * const mi_lttng_element_track_untrack_all_wildcard
= "*";
185 LTTNG_HIDDEN
const char * const mi_lttng_element_session_name
= "session_name";
187 /* String related to rotate command */
188 LTTNG_HIDDEN
const char * const mi_lttng_element_rotation
= "rotation";
189 LTTNG_HIDDEN
const char * const mi_lttng_element_rotations
= "rotations";
190 LTTNG_HIDDEN
const char * const mi_lttng_element_rotate_status
= "status";
191 LTTNG_HIDDEN
const char * const mi_lttng_element_rotation_schedule
= "rotation_schedule";
193 /* String related to add-context command */
194 LTTNG_HIDDEN
const char * const mi_lttng_element_context_symbol
= "symbol";
196 /* Deprecated symbols preserved for ABI compatibility. */
197 const char * const mi_lttng_context_type_perf_counter
;
198 const char * const mi_lttng_context_type_perf_cpu_counter
;
199 const char * const mi_lttng_context_type_perf_thread_counter
;
200 const char * const mi_lttng_element_track_untrack_pid_target
;
201 const char * const mi_lttng_element_track_untrack_targets
;
202 const char * const mi_lttng_element_calibrate
;
203 const char * const mi_lttng_element_calibrate_function
;
204 const char * const mi_lttng_element_command_calibrate
;
206 /* This is a merge of jul loglevel and regular loglevel
207 * Those should never overlap by definition
208 * (see struct lttng_event loglevel)
211 const char *mi_lttng_loglevel_string(int value
, enum lttng_domain_type domain
)
214 case LTTNG_DOMAIN_KERNEL
:
215 case LTTNG_DOMAIN_UST
:
218 return mi_lttng_element_empty
;
219 case LTTNG_LOGLEVEL_EMERG
:
220 return mi_lttng_loglevel_str_emerg
;
221 case LTTNG_LOGLEVEL_ALERT
:
222 return mi_lttng_loglevel_str_alert
;
223 case LTTNG_LOGLEVEL_CRIT
:
224 return mi_lttng_loglevel_str_crit
;
225 case LTTNG_LOGLEVEL_ERR
:
226 return mi_lttng_loglevel_str_err
;
227 case LTTNG_LOGLEVEL_WARNING
:
228 return mi_lttng_loglevel_str_warning
;
229 case LTTNG_LOGLEVEL_NOTICE
:
230 return mi_lttng_loglevel_str_notice
;
231 case LTTNG_LOGLEVEL_INFO
:
232 return mi_lttng_loglevel_str_info
;
233 case LTTNG_LOGLEVEL_DEBUG_SYSTEM
:
234 return mi_lttng_loglevel_str_debug_system
;
235 case LTTNG_LOGLEVEL_DEBUG_PROGRAM
:
236 return mi_lttng_loglevel_str_debug_program
;
237 case LTTNG_LOGLEVEL_DEBUG_PROCESS
:
238 return mi_lttng_loglevel_str_debug_process
;
239 case LTTNG_LOGLEVEL_DEBUG_MODULE
:
240 return mi_lttng_loglevel_str_debug_module
;
241 case LTTNG_LOGLEVEL_DEBUG_UNIT
:
242 return mi_lttng_loglevel_str_debug_unit
;
243 case LTTNG_LOGLEVEL_DEBUG_FUNCTION
:
244 return mi_lttng_loglevel_str_debug_function
;
245 case LTTNG_LOGLEVEL_DEBUG_LINE
:
246 return mi_lttng_loglevel_str_debug_line
;
247 case LTTNG_LOGLEVEL_DEBUG
:
248 return mi_lttng_loglevel_str_debug
;
250 return mi_lttng_loglevel_str_unknown
;
253 case LTTNG_DOMAIN_LOG4J
:
256 return mi_lttng_element_empty
;
257 case LTTNG_LOGLEVEL_LOG4J_OFF
:
258 return mi_lttng_loglevel_str_log4j_off
;
259 case LTTNG_LOGLEVEL_LOG4J_FATAL
:
260 return mi_lttng_loglevel_str_log4j_fatal
;
261 case LTTNG_LOGLEVEL_LOG4J_ERROR
:
262 return mi_lttng_loglevel_str_log4j_error
;
263 case LTTNG_LOGLEVEL_LOG4J_WARN
:
264 return mi_lttng_loglevel_str_log4j_warn
;
265 case LTTNG_LOGLEVEL_LOG4J_INFO
:
266 return mi_lttng_loglevel_str_log4j_info
;
267 case LTTNG_LOGLEVEL_LOG4J_DEBUG
:
268 return mi_lttng_loglevel_str_log4j_debug
;
269 case LTTNG_LOGLEVEL_LOG4J_TRACE
:
270 return mi_lttng_loglevel_str_log4j_trace
;
271 case LTTNG_LOGLEVEL_LOG4J_ALL
:
272 return mi_lttng_loglevel_str_log4j_all
;
274 return mi_lttng_loglevel_str_unknown
;
277 case LTTNG_DOMAIN_JUL
:
280 return mi_lttng_element_empty
;
281 case LTTNG_LOGLEVEL_JUL_OFF
:
282 return mi_lttng_loglevel_str_jul_off
;
283 case LTTNG_LOGLEVEL_JUL_SEVERE
:
284 return mi_lttng_loglevel_str_jul_severe
;
285 case LTTNG_LOGLEVEL_JUL_WARNING
:
286 return mi_lttng_loglevel_str_jul_warning
;
287 case LTTNG_LOGLEVEL_JUL_INFO
:
288 return mi_lttng_loglevel_str_jul_info
;
289 case LTTNG_LOGLEVEL_JUL_CONFIG
:
290 return mi_lttng_loglevel_str_jul_config
;
291 case LTTNG_LOGLEVEL_JUL_FINE
:
292 return mi_lttng_loglevel_str_jul_fine
;
293 case LTTNG_LOGLEVEL_JUL_FINER
:
294 return mi_lttng_loglevel_str_jul_finer
;
295 case LTTNG_LOGLEVEL_JUL_FINEST
:
296 return mi_lttng_loglevel_str_jul_finest
;
297 case LTTNG_LOGLEVEL_JUL_ALL
:
298 return mi_lttng_loglevel_str_jul_all
;
300 return mi_lttng_loglevel_str_unknown
;
303 case LTTNG_DOMAIN_PYTHON
:
305 case LTTNG_LOGLEVEL_PYTHON_CRITICAL
:
306 return mi_lttng_loglevel_str_python_critical
;
307 case LTTNG_LOGLEVEL_PYTHON_ERROR
:
308 return mi_lttng_loglevel_str_python_error
;
309 case LTTNG_LOGLEVEL_PYTHON_WARNING
:
310 return mi_lttng_loglevel_str_python_warning
;
311 case LTTNG_LOGLEVEL_PYTHON_INFO
:
312 return mi_lttng_loglevel_str_python_info
;
313 case LTTNG_LOGLEVEL_PYTHON_DEBUG
:
314 return mi_lttng_loglevel_str_python_debug
;
315 case LTTNG_LOGLEVEL_PYTHON_NOTSET
:
316 return mi_lttng_loglevel_str_python_notset
;
318 return mi_lttng_loglevel_str_unknown
;
322 return mi_lttng_loglevel_str_unknown
;
327 const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value
)
330 case LTTNG_EVENT_LOGLEVEL_ALL
:
331 return mi_lttng_loglevel_type_all
;
332 case LTTNG_EVENT_LOGLEVEL_RANGE
:
333 return mi_lttng_loglevel_type_range
;
334 case LTTNG_EVENT_LOGLEVEL_SINGLE
:
335 return mi_lttng_loglevel_type_single
;
337 return mi_lttng_loglevel_type_unknown
;
342 const char *mi_lttng_eventtype_string(enum lttng_event_type value
)
345 case LTTNG_EVENT_ALL
:
346 return config_event_type_all
;
347 case LTTNG_EVENT_TRACEPOINT
:
348 return config_event_type_tracepoint
;
349 case LTTNG_EVENT_PROBE
:
350 return config_event_type_probe
;
351 case LTTNG_EVENT_FUNCTION
:
352 return config_event_type_function
;
353 case LTTNG_EVENT_FUNCTION_ENTRY
:
354 return config_event_type_function_entry
;
355 case LTTNG_EVENT_SYSCALL
:
356 return config_event_type_syscall
;
357 case LTTNG_EVENT_NOOP
:
358 return config_event_type_noop
;
360 return mi_lttng_element_empty
;
365 const char *mi_lttng_event_contexttype_string(enum lttng_event_context_type val
)
368 case LTTNG_EVENT_CONTEXT_PID
:
369 return config_event_context_pid
;
370 case LTTNG_EVENT_CONTEXT_PROCNAME
:
371 return config_event_context_procname
;
372 case LTTNG_EVENT_CONTEXT_PRIO
:
373 return config_event_context_prio
;
374 case LTTNG_EVENT_CONTEXT_NICE
:
375 return config_event_context_nice
;
376 case LTTNG_EVENT_CONTEXT_VPID
:
377 return config_event_context_vpid
;
378 case LTTNG_EVENT_CONTEXT_TID
:
379 return config_event_context_tid
;
380 case LTTNG_EVENT_CONTEXT_VTID
:
381 return config_event_context_vtid
;
382 case LTTNG_EVENT_CONTEXT_PPID
:
383 return config_event_context_ppid
;
384 case LTTNG_EVENT_CONTEXT_VPPID
:
385 return config_event_context_vppid
;
386 case LTTNG_EVENT_CONTEXT_PTHREAD_ID
:
387 return config_event_context_pthread_id
;
388 case LTTNG_EVENT_CONTEXT_HOSTNAME
:
389 return config_event_context_hostname
;
390 case LTTNG_EVENT_CONTEXT_IP
:
391 return config_event_context_ip
;
392 case LTTNG_EVENT_CONTEXT_INTERRUPTIBLE
:
393 return config_event_context_interruptible
;
394 case LTTNG_EVENT_CONTEXT_PREEMPTIBLE
:
395 return config_event_context_preemptible
;
396 case LTTNG_EVENT_CONTEXT_NEED_RESCHEDULE
:
397 return config_event_context_need_reschedule
;
398 case LTTNG_EVENT_CONTEXT_MIGRATABLE
:
399 return config_event_context_migratable
;
406 const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type val
)
409 case(LTTNG_EVENT_FIELD_INTEGER
):
410 return mi_lttng_element_type_integer
;
411 case(LTTNG_EVENT_FIELD_ENUM
):
412 return mi_lttng_element_type_enum
;
413 case(LTTNG_EVENT_FIELD_FLOAT
):
414 return mi_lttng_element_type_float
;
415 case(LTTNG_EVENT_FIELD_STRING
):
416 return mi_lttng_element_type_string
;
418 return mi_lttng_element_type_other
;
423 const char *mi_lttng_domaintype_string(enum lttng_domain_type value
)
425 /* Note: This is a *duplicate* of get_domain_str from bin/lttng/utils.c */
427 case LTTNG_DOMAIN_KERNEL
:
428 return config_domain_type_kernel
;
429 case LTTNG_DOMAIN_UST
:
430 return config_domain_type_ust
;
431 case LTTNG_DOMAIN_JUL
:
432 return config_domain_type_jul
;
433 case LTTNG_DOMAIN_LOG4J
:
434 return config_domain_type_log4j
;
435 case LTTNG_DOMAIN_PYTHON
:
436 return config_domain_type_python
;
438 /* Should not have an unknown domain */
445 const char *mi_lttng_buffertype_string(enum lttng_buffer_type value
)
448 case LTTNG_BUFFER_PER_PID
:
449 return config_buffer_type_per_pid
;
450 case LTTNG_BUFFER_PER_UID
:
451 return config_buffer_type_per_uid
;
452 case LTTNG_BUFFER_GLOBAL
:
453 return config_buffer_type_global
;
455 /* Should not have an unknow buffer type */
462 struct mi_writer
*mi_lttng_writer_create(int fd_output
, int mi_output_type
)
464 struct mi_writer
*mi_writer
;
466 mi_writer
= zmalloc(sizeof(struct mi_writer
));
468 PERROR("zmalloc mi_writer_create");
471 if (mi_output_type
== LTTNG_MI_XML
) {
472 mi_writer
->writer
= config_writer_create(fd_output
, 0);
473 if (!mi_writer
->writer
) {
476 mi_writer
->type
= LTTNG_MI_XML
;
490 int mi_lttng_writer_destroy(struct mi_writer
*writer
)
499 ret
= config_writer_destroy(writer
->writer
);
510 int mi_lttng_writer_command_open(struct mi_writer
*writer
, const char *command
)
515 * A command is always the MI's root node, it must declare the current
516 * namespace and schema URIs and the schema's version.
518 ret
= config_writer_open_element(writer
->writer
,
519 mi_lttng_element_command
);
524 ret
= config_writer_write_attribute(writer
->writer
,
525 mi_lttng_xmlns
, DEFAULT_LTTNG_MI_NAMESPACE
);
530 ret
= config_writer_write_attribute(writer
->writer
,
531 mi_lttng_xmlns_xsi
, mi_lttng_w3_schema_uri
);
536 ret
= config_writer_write_attribute(writer
->writer
,
537 mi_lttng_schema_location
,
538 mi_lttng_schema_location_uri
);
543 ret
= config_writer_write_attribute(writer
->writer
,
544 mi_lttng_schema_version
,
545 mi_lttng_schema_version_value
);
550 ret
= mi_lttng_writer_write_element_string(writer
,
551 mi_lttng_element_command_name
, command
);
557 int mi_lttng_writer_command_close(struct mi_writer
*writer
)
559 return mi_lttng_writer_close_element(writer
);
563 int mi_lttng_writer_open_element(struct mi_writer
*writer
,
564 const char *element_name
)
566 return config_writer_open_element(writer
->writer
, element_name
);
570 int mi_lttng_writer_close_element(struct mi_writer
*writer
)
572 return config_writer_close_element(writer
->writer
);
576 int mi_lttng_close_multi_element(struct mi_writer
*writer
,
577 unsigned int nb_element
)
581 if (nb_element
< 1) {
585 for (i
= 0; i
< nb_element
; i
++) {
586 ret
= mi_lttng_writer_close_element(writer
);
596 int mi_lttng_writer_write_element_unsigned_int(struct mi_writer
*writer
,
597 const char *element_name
, uint64_t value
)
599 return config_writer_write_element_unsigned_int(writer
->writer
,
600 element_name
, value
);
604 int mi_lttng_writer_write_element_signed_int(struct mi_writer
*writer
,
605 const char *element_name
, int64_t value
)
607 return config_writer_write_element_signed_int(writer
->writer
,
608 element_name
, value
);
612 int mi_lttng_writer_write_element_bool(struct mi_writer
*writer
,
613 const char *element_name
, int value
)
615 return config_writer_write_element_bool(writer
->writer
,
616 element_name
, value
);
620 int mi_lttng_writer_write_element_string(struct mi_writer
*writer
,
621 const char *element_name
, const char *value
)
623 return config_writer_write_element_string(writer
->writer
,
624 element_name
, value
);
628 int mi_lttng_version(struct mi_writer
*writer
, struct mi_lttng_version
*version
,
629 const char *lttng_description
, const char *lttng_license
)
634 ret
= mi_lttng_writer_open_element(writer
, mi_lttng_element_version
);
639 /* Version string (contain info like rc etc.) */
640 ret
= mi_lttng_writer_write_element_string(writer
,
641 mi_lttng_element_version_str
, version
->version
);
646 /* Major version number */
647 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
648 mi_lttng_element_version_major
, version
->version_major
);
653 /* Minor version number */
654 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
655 mi_lttng_element_version_minor
, version
->version_minor
);
660 /* Commit version number */
661 ret
= mi_lttng_writer_write_element_string(writer
,
662 mi_lttng_element_version_commit
, version
->version_commit
);
668 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
669 mi_lttng_element_version_patch_level
, version
->version_patchlevel
);
674 /* Name of the version */
675 ret
= mi_lttng_writer_write_element_string(writer
,
676 config_element_name
, version
->version_name
);
681 /* Description mostly related to beer... */
682 ret
= mi_lttng_writer_write_element_string(writer
,
683 mi_lttng_element_version_description
, lttng_description
);
689 ret
= mi_lttng_writer_write_element_string(writer
,
690 mi_lttng_element_version_web
, version
->package_url
);
695 /* License: free as in free beer...no...*speech* */
696 ret
= mi_lttng_writer_write_element_string(writer
,
697 mi_lttng_element_version_license
, lttng_license
);
702 /* Close version element */
703 ret
= mi_lttng_writer_close_element(writer
);
710 int mi_lttng_sessions_open(struct mi_writer
*writer
)
712 return mi_lttng_writer_open_element(writer
, config_element_sessions
);
716 int mi_lttng_session(struct mi_writer
*writer
,
717 struct lttng_session
*session
, int is_open
)
723 /* Open sessions element */
724 ret
= mi_lttng_writer_open_element(writer
,
725 config_element_session
);
730 /* Name of the session */
731 ret
= mi_lttng_writer_write_element_string(writer
,
732 config_element_name
, session
->name
);
738 ret
= mi_lttng_writer_write_element_string(writer
,
739 config_element_path
, session
->path
);
745 ret
= mi_lttng_writer_write_element_bool(writer
,
746 config_element_enabled
, session
->enabled
);
752 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
753 config_element_snapshot_mode
, session
->snapshot_mode
);
758 /* Live timer interval in usec */
759 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
760 config_element_live_timer_interval
,
761 session
->live_timer_interval
);
767 /* Closing session element */
768 ret
= mi_lttng_writer_close_element(writer
);
776 int mi_lttng_domains_open(struct mi_writer
*writer
)
778 return mi_lttng_writer_open_element(writer
, config_element_domains
);
782 int mi_lttng_domain(struct mi_writer
*writer
,
783 struct lttng_domain
*domain
, int is_open
)
786 const char *str_domain
;
787 const char *str_buffer
;
791 /* Open domain element */
792 ret
= mi_lttng_writer_open_element(writer
, config_element_domain
);
798 str_domain
= mi_lttng_domaintype_string(domain
->type
);
799 ret
= mi_lttng_writer_write_element_string(writer
, config_element_type
,
806 str_buffer
= mi_lttng_buffertype_string(domain
->buf_type
);
807 ret
= mi_lttng_writer_write_element_string(writer
,
808 config_element_buffer_type
, str_buffer
);
814 * This union is not currently used and was added for
815 * future ust domain support.
820 /* Closing domain element */
821 ret
= mi_lttng_writer_close_element(writer
);
830 int mi_lttng_channels_open(struct mi_writer
*writer
)
832 return mi_lttng_writer_open_element(writer
, config_element_channels
);
836 int mi_lttng_channel(struct mi_writer
*writer
,
837 struct lttng_channel
*channel
, int is_open
)
843 /* Opening channel element */
844 ret
= mi_lttng_writer_open_element(writer
, config_element_channel
);
850 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
857 ret
= mi_lttng_writer_write_element_bool(writer
,
858 config_element_enabled
, channel
->enabled
);
864 ret
= mi_lttng_channel_attr(writer
, &channel
->attr
);
870 /* Closing channel element */
871 ret
= mi_lttng_writer_close_element(writer
);
881 int mi_lttng_channel_attr(struct mi_writer
*writer
,
882 struct lttng_channel_attr
*attr
)
885 struct lttng_channel
*chan
= caa_container_of(attr
,
886 struct lttng_channel
, attr
);
887 uint64_t discarded_events
, lost_packets
, monitor_timer_interval
;
888 int64_t blocking_timeout
;
892 ret
= lttng_channel_get_discarded_event_count(chan
, &discarded_events
);
897 ret
= lttng_channel_get_lost_packet_count(chan
, &lost_packets
);
902 ret
= lttng_channel_get_monitor_timer_interval(chan
,
903 &monitor_timer_interval
);
908 ret
= lttng_channel_get_blocking_timeout(chan
,
914 /* Opening Attributes */
915 ret
= mi_lttng_writer_open_element(writer
, config_element_attributes
);
921 ret
= mi_lttng_writer_write_element_string(writer
,
922 config_element_overwrite_mode
,
923 attr
->overwrite
? config_overwrite_mode_overwrite
:
924 config_overwrite_mode_discard
);
929 /* Sub buffer size in byte */
930 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
931 config_element_subbuf_size
, attr
->subbuf_size
);
936 /* Number of subbuffer (power of two) */
937 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
938 config_element_num_subbuf
,
944 /* Switch timer interval in usec */
945 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
946 config_element_switch_timer_interval
,
947 attr
->switch_timer_interval
);
952 /* Read timer interval in usec */
953 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
954 config_element_read_timer_interval
,
955 attr
->read_timer_interval
);
960 /* Monitor timer interval in usec */
961 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
962 config_element_monitor_timer_interval
,
963 monitor_timer_interval
);
968 /* Retry timeout in usec */
969 ret
= mi_lttng_writer_write_element_signed_int(writer
,
970 config_element_blocking_timeout
,
977 ret
= mi_lttng_writer_write_element_string(writer
,
978 config_element_output_type
,
979 attr
->output
== LTTNG_EVENT_SPLICE
?
980 config_output_type_splice
: config_output_type_mmap
);
985 /* Tracefile size in bytes */
986 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
987 config_element_tracefile_size
, attr
->tracefile_size
);
992 /* Count of tracefiles */
993 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
994 config_element_tracefile_count
,
995 attr
->tracefile_count
);
1000 /* Live timer interval in usec*/
1001 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1002 config_element_live_timer_interval
,
1003 attr
->live_timer_interval
);
1008 /* Discarded events */
1009 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1010 config_element_discarded_events
,
1017 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1018 config_element_lost_packets
,
1024 /* Closing attributes */
1025 ret
= mi_lttng_writer_close_element(writer
);
1035 int mi_lttng_event_common_attributes(struct mi_writer
*writer
,
1036 struct lttng_event
*event
)
1039 const char *filter_expression
;
1041 /* Open event element */
1042 ret
= mi_lttng_writer_open_element(writer
, config_element_event
);
1048 ret
= mi_lttng_writer_write_element_string(writer
,
1049 config_element_name
, event
->name
);
1055 ret
= mi_lttng_writer_write_element_string(writer
,
1056 config_element_type
, mi_lttng_eventtype_string(event
->type
));
1061 /* Is event enabled */
1062 ret
= mi_lttng_writer_write_element_bool(writer
,
1063 config_element_enabled
, event
->enabled
);
1068 /* Event filter expression */
1069 ret
= lttng_event_get_filter_expression(event
, &filter_expression
);
1074 if (filter_expression
) {
1075 ret
= mi_lttng_writer_write_element_string(writer
,
1076 config_element_filter_expression
,
1087 static int write_event_exclusions(struct mi_writer
*writer
,
1088 struct lttng_event
*event
)
1092 int exclusion_count
;
1094 /* Open event exclusions */
1095 ret
= mi_lttng_writer_open_element(writer
, config_element_exclusions
);
1100 exclusion_count
= lttng_event_get_exclusion_name_count(event
);
1101 if (exclusion_count
< 0) {
1102 ret
= exclusion_count
;
1106 for (i
= 0; i
< exclusion_count
; i
++) {
1109 ret
= lttng_event_get_exclusion_name(event
, i
, &name
);
1111 /* Close exclusions */
1112 mi_lttng_writer_close_element(writer
);
1116 ret
= mi_lttng_writer_write_element_string(writer
,
1117 config_element_exclusion
, name
);
1119 /* Close exclusions */
1120 mi_lttng_writer_close_element(writer
);
1125 /* Close exclusions */
1126 ret
= mi_lttng_writer_close_element(writer
);
1133 int mi_lttng_event_tracepoint_loglevel(struct mi_writer
*writer
,
1134 struct lttng_event
*event
, enum lttng_domain_type domain
)
1138 /* Event loglevel */
1139 ret
= mi_lttng_writer_write_element_string(writer
,
1140 config_element_loglevel
,
1141 mi_lttng_loglevel_string(event
->loglevel
, domain
));
1146 /* Log level type */
1147 ret
= mi_lttng_writer_write_element_string(writer
,
1148 config_element_loglevel_type
,
1149 mi_lttng_logleveltype_string(event
->loglevel_type
));
1154 /* Event exclusions */
1155 ret
= write_event_exclusions(writer
, event
);
1162 int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer
*writer
,
1163 struct lttng_event
*event
)
1165 /* event exclusion filter */
1166 return write_event_exclusions(writer
, event
);
1170 int mi_lttng_event_function_probe(struct mi_writer
*writer
,
1171 struct lttng_event
*event
)
1175 ret
= mi_lttng_writer_open_element(writer
, config_element_attributes
);
1180 ret
= mi_lttng_writer_open_element(writer
, config_element_probe_attributes
);
1185 if (event
->attr
.probe
.addr
!= 0) {
1186 /* event probe address */
1187 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1188 config_element_address
, event
->attr
.probe
.addr
);
1193 /* event probe offset */
1194 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1195 config_element_offset
, event
->attr
.probe
.offset
);
1200 /* event probe symbol_name */
1201 ret
= mi_lttng_writer_write_element_string(writer
,
1202 config_element_symbol_name
, event
->attr
.probe
.symbol_name
);
1208 /* Close probe_attributes and attributes */
1209 ret
= mi_lttng_close_multi_element(writer
, 2);
1215 int mi_lttng_event_function_entry(struct mi_writer
*writer
,
1216 struct lttng_event
*event
)
1220 ret
= mi_lttng_writer_open_element(writer
, config_element_attributes
);
1225 ret
= mi_lttng_writer_open_element(writer
, config_element_probe_attributes
);
1230 /* event probe symbol_name */
1231 ret
= mi_lttng_writer_write_element_string(writer
,
1232 config_element_symbol_name
, event
->attr
.ftrace
.symbol_name
);
1237 /* Close function_attributes and attributes */
1238 ret
= mi_lttng_close_multi_element(writer
, 2);
1244 int mi_lttng_events_open(struct mi_writer
*writer
)
1246 return mi_lttng_writer_open_element(writer
, config_element_events
);
1250 int mi_lttng_event(struct mi_writer
*writer
,
1251 struct lttng_event
*event
, int is_open
, enum lttng_domain_type domain
)
1255 ret
= mi_lttng_event_common_attributes(writer
, event
);
1260 switch (event
->type
) {
1261 case LTTNG_EVENT_TRACEPOINT
:
1263 if (event
->loglevel
!= -1) {
1264 ret
= mi_lttng_event_tracepoint_loglevel(writer
, event
, domain
);
1266 ret
= mi_lttng_event_tracepoint_no_loglevel(writer
, event
);
1270 case LTTNG_EVENT_FUNCTION
:
1272 case LTTNG_EVENT_PROBE
:
1273 ret
= mi_lttng_event_function_probe(writer
, event
);
1275 case LTTNG_EVENT_FUNCTION_ENTRY
:
1276 ret
= mi_lttng_event_function_entry(writer
, event
);
1278 case LTTNG_EVENT_ALL
:
1285 ret
= mi_lttng_writer_close_element(writer
);
1293 int mi_lttng_trackers_open(struct mi_writer
*writer
)
1295 return mi_lttng_writer_open_element(writer
, config_element_trackers
);
1299 int mi_lttng_pid_tracker_open(struct mi_writer
*writer
)
1303 /* Open element pid_tracker */
1304 ret
= mi_lttng_writer_open_element(writer
, config_element_pid_tracker
);
1309 /* Open targets element */
1310 ret
= mi_lttng_targets_open(writer
);
1316 int mi_lttng_pids_open(struct mi_writer
*writer
)
1318 return mi_lttng_writer_open_element(writer
, config_element_pids
);
1322 * TODO: move the listing of pid for user agent to process semantic on
1323 * mi api bump. The use of process element break the mi api.
1326 int mi_lttng_pid(struct mi_writer
*writer
, pid_t pid
, const char *name
,
1331 /* Open pid process */
1332 ret
= mi_lttng_writer_open_element(writer
, config_element_pid
);
1337 /* Writing pid number */
1338 ret
= mi_lttng_writer_write_element_signed_int(writer
,
1339 mi_lttng_element_pid_id
, (int)pid
);
1344 /* Writing name of the process */
1346 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1355 ret
= mi_lttng_writer_close_element(writer
);
1363 int mi_lttng_targets_open(struct mi_writer
*writer
)
1365 return mi_lttng_writer_open_element(writer
,
1366 config_element_targets
);
1370 int mi_lttng_pid_target(struct mi_writer
*writer
, pid_t pid
, int is_open
)
1374 ret
= mi_lttng_writer_open_element(writer
,
1375 config_element_target_pid
);
1380 /* Writing pid number
1381 * Special case for element all on track untrack command
1382 * All pid is represented as wildcard *
1384 if ((int) pid
== -1) {
1385 ret
= mi_lttng_writer_write_element_string(writer
,
1387 mi_lttng_element_track_untrack_all_wildcard
);
1389 ret
= mi_lttng_writer_write_element_signed_int(writer
,
1390 config_element_pid
, (int) pid
);
1397 ret
= mi_lttng_writer_close_element(writer
);
1408 int mi_lttng_event_fields_open(struct mi_writer
*writer
)
1410 return mi_lttng_writer_open_element(writer
, mi_lttng_element_event_fields
);
1414 int mi_lttng_event_field(struct mi_writer
*writer
,
1415 struct lttng_event_field
*field
)
1419 if (!field
->field_name
[0]) {
1425 ret
= mi_lttng_writer_open_element(writer
, mi_lttng_element_event_field
);
1430 if (!field
->field_name
[0]) {
1435 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1442 ret
= mi_lttng_writer_write_element_string(writer
, config_element_type
,
1443 mi_lttng_eventfieldtype_string(field
->type
));
1449 ret
= mi_lttng_writer_write_element_signed_int(writer
,
1450 mi_lttng_element_nowrite
, field
->nowrite
);
1456 /* Close field element */
1457 ret
= mi_lttng_writer_close_element(writer
);
1464 int mi_lttng_perf_counter_context(struct mi_writer
*writer
,
1465 struct lttng_event_perf_counter_ctx
*perf_context
)
1469 /* Open perf_counter_context */
1470 ret
= mi_lttng_writer_open_element(writer
,
1471 mi_lttng_element_perf_counter_context
);
1477 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1478 config_element_type
, perf_context
->type
);
1484 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1485 config_element_config
, perf_context
->config
);
1490 /* Name of the perf counter */
1491 ret
= mi_lttng_writer_write_element_string(writer
,
1492 config_element_name
, perf_context
->name
);
1497 /* Close perf_counter_context */
1498 ret
= mi_lttng_writer_close_element(writer
);
1504 int mi_lttng_app_context(struct mi_writer
*writer
,
1505 const char *provider_name
, const char *ctx_name
)
1510 ret
= mi_lttng_writer_open_element(writer
,
1511 config_element_context_app
);
1517 ret
= mi_lttng_writer_write_element_string(writer
,
1518 config_element_context_app_provider_name
,
1525 ret
= mi_lttng_writer_write_element_string(writer
,
1526 config_element_context_app_ctx_name
, ctx_name
);
1532 ret
= mi_lttng_writer_close_element(writer
);
1538 int mi_lttng_context(struct mi_writer
*writer
,
1539 struct lttng_event_context
*context
, int is_open
)
1544 ret
= mi_lttng_writer_open_element(writer
, config_element_context
);
1549 /* Special case for PERF_*_COUNTER
1550 * print the lttng_event_perf_counter_ctx*/
1551 switch (context
->ctx
) {
1552 case LTTNG_EVENT_CONTEXT_PERF_COUNTER
:
1553 case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER
:
1554 case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER
:
1556 struct lttng_event_perf_counter_ctx
*perf_context
=
1557 &context
->u
.perf_counter
;
1558 ret
= mi_lttng_perf_counter_context(writer
, perf_context
);
1564 case LTTNG_EVENT_CONTEXT_APP_CONTEXT
:
1566 ret
= mi_lttng_app_context(writer
,
1567 context
->u
.app_ctx
.provider_name
,
1568 context
->u
.app_ctx
.ctx_name
);
1576 const char *type_string
= mi_lttng_event_contexttype_string(
1579 ret
= -LTTNG_ERR_INVALID
;
1583 /* Print context type */
1584 ret
= mi_lttng_writer_write_element_string(writer
,
1585 config_element_type
, type_string
);
1592 ret
= mi_lttng_writer_close_element(writer
);
1600 int mi_lttng_snapshot_output_session_name(struct mi_writer
*writer
,
1601 const char *session_name
)
1605 /* Open session element */
1606 ret
= mi_lttng_writer_open_element(writer
, config_element_session
);
1611 /* Snapshot output list for current session name */
1612 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1618 /* Open element snapshots (sequence one snapshot) */
1619 ret
= mi_lttng_writer_open_element(writer
, mi_lttng_element_snapshots
);
1629 int mi_lttng_snapshot_list_output(struct mi_writer
*writer
,
1630 struct lttng_snapshot_output
*output
)
1634 /* Open element snapshot output */
1635 ret
= mi_lttng_writer_open_element(writer
,
1636 mi_lttng_element_command_snapshot
);
1641 /* ID of the snapshot output */
1642 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1643 mi_lttng_element_id
, output
->id
);
1648 /* Name of the output */
1649 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1655 /* Destination of the output (ctrl_url)*/
1656 ret
= mi_lttng_writer_write_element_string(writer
,
1657 mi_lttng_element_snapshot_ctrl_url
, output
->ctrl_url
);
1662 /* Destination of the output (data_url) */
1663 ret
= mi_lttng_writer_write_element_string(writer
,
1664 mi_lttng_element_snapshot_data_url
, output
->data_url
);
1669 /* total size of all stream combined */
1670 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1671 mi_lttng_element_snapshot_max_size
, output
->max_size
);
1676 /* Close snapshot output element */
1677 ret
= mi_lttng_writer_close_element(writer
);
1684 int mi_lttng_snapshot_del_output(struct mi_writer
*writer
, int id
,
1685 const char *name
, const char *current_session_name
)
1689 /* Open element del_snapshot */
1690 ret
= mi_lttng_writer_open_element(writer
,
1691 mi_lttng_element_command_snapshot
);
1697 if (id
!= UINT32_MAX
) {
1698 /* "Snapshot output "id" successfully deleted
1699 * for "current_session_name"
1700 * ID of the snapshot output
1702 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1703 mi_lttng_element_id
, id
);
1708 /* "Snapshot output "name" successfully deleted
1709 * for session "current_session_name"
1710 * Name of the output
1712 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1719 /* Snapshot was deleted for session "current_session_name"*/
1720 ret
= mi_lttng_writer_write_element_string(writer
,
1721 mi_lttng_element_snapshot_session_name
,
1722 current_session_name
);
1727 /* Close snapshot element */
1728 ret
= mi_lttng_writer_close_element(writer
);
1735 int mi_lttng_snapshot_add_output(struct mi_writer
*writer
,
1736 const char *current_session_name
, const char *n_ptr
,
1737 struct lttng_snapshot_output
*output
)
1741 /* Open element snapshot */
1742 ret
= mi_lttng_writer_open_element(writer
,
1743 mi_lttng_element_command_snapshot
);
1748 /* Snapshot output id */
1749 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1750 mi_lttng_element_id
, output
->id
);
1755 /* Snapshot output names */
1756 ret
= mi_lttng_writer_write_element_string(writer
,
1757 config_element_name
, n_ptr
);
1762 /* Destination of the output (ctrl_url)*/
1763 ret
= mi_lttng_writer_write_element_string(writer
,
1764 mi_lttng_element_snapshot_ctrl_url
, output
->ctrl_url
);
1769 /* Snapshot added for session "current_session_name"*/
1770 ret
= mi_lttng_writer_write_element_string(writer
,
1771 mi_lttng_element_snapshot_session_name
, current_session_name
);
1776 /* total size of all stream combined */
1777 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1778 mi_lttng_element_snapshot_max_size
, output
->max_size
);
1783 /* Close snapshot element */
1784 ret
= mi_lttng_writer_close_element(writer
);
1791 int mi_lttng_snapshot_record(struct mi_writer
*writer
,
1792 const char *current_session_name
, const char *url
,
1793 const char *cmdline_ctrl_url
, const char *cmdline_data_url
)
1797 /* Open element snapshot */
1798 ret
= mi_lttng_writer_open_element(writer
,
1799 mi_lttng_element_command_snapshot
);
1805 * If a valid an URL was given, serialize it,
1806 * else take the command line data and ctrl urls*/
1808 /* Destination of the output (ctrl_url)*/
1809 ret
= mi_lttng_writer_write_element_string(writer
,
1810 mi_lttng_element_snapshot_ctrl_url
, url
);
1814 } else if (cmdline_ctrl_url
) {
1815 /* Destination of the output (ctrl_url)*/
1816 ret
= mi_lttng_writer_write_element_string(writer
,
1817 mi_lttng_element_snapshot_ctrl_url
, cmdline_ctrl_url
);
1822 /* Destination of the output (data_url) */
1823 ret
= mi_lttng_writer_write_element_string(writer
,
1824 mi_lttng_element_snapshot_data_url
, cmdline_data_url
);
1830 /* Close record_snapshot element */
1831 ret
= mi_lttng_writer_close_element(writer
);