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 "https://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
;
400 case LTTNG_EVENT_CONTEXT_CALLSTACK_USER
:
401 return config_event_context_callstack_user
;
402 case LTTNG_EVENT_CONTEXT_CALLSTACK_KERNEL
:
403 return config_event_context_callstack_kernel
;
410 const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type val
)
413 case(LTTNG_EVENT_FIELD_INTEGER
):
414 return mi_lttng_element_type_integer
;
415 case(LTTNG_EVENT_FIELD_ENUM
):
416 return mi_lttng_element_type_enum
;
417 case(LTTNG_EVENT_FIELD_FLOAT
):
418 return mi_lttng_element_type_float
;
419 case(LTTNG_EVENT_FIELD_STRING
):
420 return mi_lttng_element_type_string
;
422 return mi_lttng_element_type_other
;
427 const char *mi_lttng_domaintype_string(enum lttng_domain_type value
)
429 /* Note: This is a *duplicate* of get_domain_str from bin/lttng/utils.c */
431 case LTTNG_DOMAIN_KERNEL
:
432 return config_domain_type_kernel
;
433 case LTTNG_DOMAIN_UST
:
434 return config_domain_type_ust
;
435 case LTTNG_DOMAIN_JUL
:
436 return config_domain_type_jul
;
437 case LTTNG_DOMAIN_LOG4J
:
438 return config_domain_type_log4j
;
439 case LTTNG_DOMAIN_PYTHON
:
440 return config_domain_type_python
;
442 /* Should not have an unknown domain */
449 const char *mi_lttng_buffertype_string(enum lttng_buffer_type value
)
452 case LTTNG_BUFFER_PER_PID
:
453 return config_buffer_type_per_pid
;
454 case LTTNG_BUFFER_PER_UID
:
455 return config_buffer_type_per_uid
;
456 case LTTNG_BUFFER_GLOBAL
:
457 return config_buffer_type_global
;
459 /* Should not have an unknow buffer type */
466 struct mi_writer
*mi_lttng_writer_create(int fd_output
, int mi_output_type
)
468 struct mi_writer
*mi_writer
;
470 mi_writer
= zmalloc(sizeof(struct mi_writer
));
472 PERROR("zmalloc mi_writer_create");
475 if (mi_output_type
== LTTNG_MI_XML
) {
476 mi_writer
->writer
= config_writer_create(fd_output
, 0);
477 if (!mi_writer
->writer
) {
480 mi_writer
->type
= LTTNG_MI_XML
;
494 int mi_lttng_writer_destroy(struct mi_writer
*writer
)
503 ret
= config_writer_destroy(writer
->writer
);
514 int mi_lttng_writer_command_open(struct mi_writer
*writer
, const char *command
)
519 * A command is always the MI's root node, it must declare the current
520 * namespace and schema URIs and the schema's version.
522 ret
= config_writer_open_element(writer
->writer
,
523 mi_lttng_element_command
);
528 ret
= config_writer_write_attribute(writer
->writer
,
529 mi_lttng_xmlns
, DEFAULT_LTTNG_MI_NAMESPACE
);
534 ret
= config_writer_write_attribute(writer
->writer
,
535 mi_lttng_xmlns_xsi
, mi_lttng_w3_schema_uri
);
540 ret
= config_writer_write_attribute(writer
->writer
,
541 mi_lttng_schema_location
,
542 mi_lttng_schema_location_uri
);
547 ret
= config_writer_write_attribute(writer
->writer
,
548 mi_lttng_schema_version
,
549 mi_lttng_schema_version_value
);
554 ret
= mi_lttng_writer_write_element_string(writer
,
555 mi_lttng_element_command_name
, command
);
561 int mi_lttng_writer_command_close(struct mi_writer
*writer
)
563 return mi_lttng_writer_close_element(writer
);
567 int mi_lttng_writer_open_element(struct mi_writer
*writer
,
568 const char *element_name
)
570 return config_writer_open_element(writer
->writer
, element_name
);
574 int mi_lttng_writer_close_element(struct mi_writer
*writer
)
576 return config_writer_close_element(writer
->writer
);
580 int mi_lttng_close_multi_element(struct mi_writer
*writer
,
581 unsigned int nb_element
)
585 if (nb_element
< 1) {
589 for (i
= 0; i
< nb_element
; i
++) {
590 ret
= mi_lttng_writer_close_element(writer
);
600 int mi_lttng_writer_write_element_unsigned_int(struct mi_writer
*writer
,
601 const char *element_name
, uint64_t value
)
603 return config_writer_write_element_unsigned_int(writer
->writer
,
604 element_name
, value
);
608 int mi_lttng_writer_write_element_signed_int(struct mi_writer
*writer
,
609 const char *element_name
, int64_t value
)
611 return config_writer_write_element_signed_int(writer
->writer
,
612 element_name
, value
);
616 int mi_lttng_writer_write_element_bool(struct mi_writer
*writer
,
617 const char *element_name
, int value
)
619 return config_writer_write_element_bool(writer
->writer
,
620 element_name
, value
);
624 int mi_lttng_writer_write_element_string(struct mi_writer
*writer
,
625 const char *element_name
, const char *value
)
627 return config_writer_write_element_string(writer
->writer
,
628 element_name
, value
);
632 int mi_lttng_version(struct mi_writer
*writer
, struct mi_lttng_version
*version
,
633 const char *lttng_description
, const char *lttng_license
)
638 ret
= mi_lttng_writer_open_element(writer
, mi_lttng_element_version
);
643 /* Version string (contain info like rc etc.) */
644 ret
= mi_lttng_writer_write_element_string(writer
,
645 mi_lttng_element_version_str
, version
->version
);
650 /* Major version number */
651 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
652 mi_lttng_element_version_major
, version
->version_major
);
657 /* Minor version number */
658 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
659 mi_lttng_element_version_minor
, version
->version_minor
);
664 /* Commit version number */
665 ret
= mi_lttng_writer_write_element_string(writer
,
666 mi_lttng_element_version_commit
, version
->version_commit
);
672 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
673 mi_lttng_element_version_patch_level
, version
->version_patchlevel
);
678 /* Name of the version */
679 ret
= mi_lttng_writer_write_element_string(writer
,
680 config_element_name
, version
->version_name
);
685 /* Description mostly related to beer... */
686 ret
= mi_lttng_writer_write_element_string(writer
,
687 mi_lttng_element_version_description
, lttng_description
);
693 ret
= mi_lttng_writer_write_element_string(writer
,
694 mi_lttng_element_version_web
, version
->package_url
);
699 /* License: free as in free beer...no...*speech* */
700 ret
= mi_lttng_writer_write_element_string(writer
,
701 mi_lttng_element_version_license
, lttng_license
);
706 /* Close version element */
707 ret
= mi_lttng_writer_close_element(writer
);
714 int mi_lttng_sessions_open(struct mi_writer
*writer
)
716 return mi_lttng_writer_open_element(writer
, config_element_sessions
);
720 int mi_lttng_session(struct mi_writer
*writer
,
721 struct lttng_session
*session
, int is_open
)
727 /* Open sessions element */
728 ret
= mi_lttng_writer_open_element(writer
,
729 config_element_session
);
734 /* Name of the session */
735 ret
= mi_lttng_writer_write_element_string(writer
,
736 config_element_name
, session
->name
);
742 ret
= mi_lttng_writer_write_element_string(writer
,
743 config_element_path
, session
->path
);
749 ret
= mi_lttng_writer_write_element_bool(writer
,
750 config_element_enabled
, session
->enabled
);
756 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
757 config_element_snapshot_mode
, session
->snapshot_mode
);
762 /* Live timer interval in usec */
763 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
764 config_element_live_timer_interval
,
765 session
->live_timer_interval
);
771 /* Closing session element */
772 ret
= mi_lttng_writer_close_element(writer
);
780 int mi_lttng_domains_open(struct mi_writer
*writer
)
782 return mi_lttng_writer_open_element(writer
, config_element_domains
);
786 int mi_lttng_domain(struct mi_writer
*writer
,
787 struct lttng_domain
*domain
, int is_open
)
790 const char *str_domain
;
791 const char *str_buffer
;
795 /* Open domain element */
796 ret
= mi_lttng_writer_open_element(writer
, config_element_domain
);
802 str_domain
= mi_lttng_domaintype_string(domain
->type
);
803 ret
= mi_lttng_writer_write_element_string(writer
, config_element_type
,
810 str_buffer
= mi_lttng_buffertype_string(domain
->buf_type
);
811 ret
= mi_lttng_writer_write_element_string(writer
,
812 config_element_buffer_type
, str_buffer
);
818 * This union is not currently used and was added for
819 * future ust domain support.
824 /* Closing domain element */
825 ret
= mi_lttng_writer_close_element(writer
);
834 int mi_lttng_channels_open(struct mi_writer
*writer
)
836 return mi_lttng_writer_open_element(writer
, config_element_channels
);
840 int mi_lttng_channel(struct mi_writer
*writer
,
841 struct lttng_channel
*channel
, int is_open
)
847 /* Opening channel element */
848 ret
= mi_lttng_writer_open_element(writer
, config_element_channel
);
854 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
861 ret
= mi_lttng_writer_write_element_bool(writer
,
862 config_element_enabled
, channel
->enabled
);
868 ret
= mi_lttng_channel_attr(writer
, &channel
->attr
);
874 /* Closing channel element */
875 ret
= mi_lttng_writer_close_element(writer
);
885 int mi_lttng_channel_attr(struct mi_writer
*writer
,
886 struct lttng_channel_attr
*attr
)
889 struct lttng_channel
*chan
= caa_container_of(attr
,
890 struct lttng_channel
, attr
);
891 uint64_t discarded_events
, lost_packets
, monitor_timer_interval
;
892 int64_t blocking_timeout
;
896 ret
= lttng_channel_get_discarded_event_count(chan
, &discarded_events
);
901 ret
= lttng_channel_get_lost_packet_count(chan
, &lost_packets
);
906 ret
= lttng_channel_get_monitor_timer_interval(chan
,
907 &monitor_timer_interval
);
912 ret
= lttng_channel_get_blocking_timeout(chan
,
918 /* Opening Attributes */
919 ret
= mi_lttng_writer_open_element(writer
, config_element_attributes
);
925 ret
= mi_lttng_writer_write_element_string(writer
,
926 config_element_overwrite_mode
,
927 attr
->overwrite
? config_overwrite_mode_overwrite
:
928 config_overwrite_mode_discard
);
933 /* Sub buffer size in byte */
934 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
935 config_element_subbuf_size
, attr
->subbuf_size
);
940 /* Number of subbuffer (power of two) */
941 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
942 config_element_num_subbuf
,
948 /* Switch timer interval in usec */
949 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
950 config_element_switch_timer_interval
,
951 attr
->switch_timer_interval
);
956 /* Read timer interval in usec */
957 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
958 config_element_read_timer_interval
,
959 attr
->read_timer_interval
);
964 /* Monitor timer interval in usec */
965 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
966 config_element_monitor_timer_interval
,
967 monitor_timer_interval
);
972 /* Retry timeout in usec */
973 ret
= mi_lttng_writer_write_element_signed_int(writer
,
974 config_element_blocking_timeout
,
981 ret
= mi_lttng_writer_write_element_string(writer
,
982 config_element_output_type
,
983 attr
->output
== LTTNG_EVENT_SPLICE
?
984 config_output_type_splice
: config_output_type_mmap
);
989 /* Tracefile size in bytes */
990 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
991 config_element_tracefile_size
, attr
->tracefile_size
);
996 /* Count of tracefiles */
997 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
998 config_element_tracefile_count
,
999 attr
->tracefile_count
);
1004 /* Live timer interval in usec*/
1005 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1006 config_element_live_timer_interval
,
1007 attr
->live_timer_interval
);
1012 /* Discarded events */
1013 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1014 config_element_discarded_events
,
1021 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1022 config_element_lost_packets
,
1028 /* Closing attributes */
1029 ret
= mi_lttng_writer_close_element(writer
);
1039 int mi_lttng_event_common_attributes(struct mi_writer
*writer
,
1040 struct lttng_event
*event
)
1043 const char *filter_expression
;
1045 /* Open event element */
1046 ret
= mi_lttng_writer_open_element(writer
, config_element_event
);
1052 ret
= mi_lttng_writer_write_element_string(writer
,
1053 config_element_name
, event
->name
);
1059 ret
= mi_lttng_writer_write_element_string(writer
,
1060 config_element_type
, mi_lttng_eventtype_string(event
->type
));
1065 /* Is event enabled */
1066 ret
= mi_lttng_writer_write_element_bool(writer
,
1067 config_element_enabled
, event
->enabled
);
1072 /* Event filter expression */
1073 ret
= lttng_event_get_filter_expression(event
, &filter_expression
);
1078 if (filter_expression
) {
1079 ret
= mi_lttng_writer_write_element_string(writer
,
1080 config_element_filter_expression
,
1091 static int write_event_exclusions(struct mi_writer
*writer
,
1092 struct lttng_event
*event
)
1096 int exclusion_count
;
1098 /* Open event exclusions */
1099 ret
= mi_lttng_writer_open_element(writer
, config_element_exclusions
);
1104 exclusion_count
= lttng_event_get_exclusion_name_count(event
);
1105 if (exclusion_count
< 0) {
1106 ret
= exclusion_count
;
1110 for (i
= 0; i
< exclusion_count
; i
++) {
1113 ret
= lttng_event_get_exclusion_name(event
, i
, &name
);
1115 /* Close exclusions */
1116 mi_lttng_writer_close_element(writer
);
1120 ret
= mi_lttng_writer_write_element_string(writer
,
1121 config_element_exclusion
, name
);
1123 /* Close exclusions */
1124 mi_lttng_writer_close_element(writer
);
1129 /* Close exclusions */
1130 ret
= mi_lttng_writer_close_element(writer
);
1137 int mi_lttng_event_tracepoint_loglevel(struct mi_writer
*writer
,
1138 struct lttng_event
*event
, enum lttng_domain_type domain
)
1142 /* Event loglevel */
1143 ret
= mi_lttng_writer_write_element_string(writer
,
1144 config_element_loglevel
,
1145 mi_lttng_loglevel_string(event
->loglevel
, domain
));
1150 /* Log level type */
1151 ret
= mi_lttng_writer_write_element_string(writer
,
1152 config_element_loglevel_type
,
1153 mi_lttng_logleveltype_string(event
->loglevel_type
));
1158 /* Event exclusions */
1159 ret
= write_event_exclusions(writer
, event
);
1166 int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer
*writer
,
1167 struct lttng_event
*event
)
1169 /* event exclusion filter */
1170 return write_event_exclusions(writer
, event
);
1174 int mi_lttng_event_function_probe(struct mi_writer
*writer
,
1175 struct lttng_event
*event
)
1179 ret
= mi_lttng_writer_open_element(writer
, config_element_attributes
);
1184 ret
= mi_lttng_writer_open_element(writer
, config_element_probe_attributes
);
1189 if (event
->attr
.probe
.addr
!= 0) {
1190 /* event probe address */
1191 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1192 config_element_address
, event
->attr
.probe
.addr
);
1197 /* event probe offset */
1198 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1199 config_element_offset
, event
->attr
.probe
.offset
);
1204 /* event probe symbol_name */
1205 ret
= mi_lttng_writer_write_element_string(writer
,
1206 config_element_symbol_name
, event
->attr
.probe
.symbol_name
);
1212 /* Close probe_attributes and attributes */
1213 ret
= mi_lttng_close_multi_element(writer
, 2);
1219 int mi_lttng_event_function_entry(struct mi_writer
*writer
,
1220 struct lttng_event
*event
)
1224 ret
= mi_lttng_writer_open_element(writer
, config_element_attributes
);
1229 ret
= mi_lttng_writer_open_element(writer
, config_element_probe_attributes
);
1234 /* event probe symbol_name */
1235 ret
= mi_lttng_writer_write_element_string(writer
,
1236 config_element_symbol_name
, event
->attr
.ftrace
.symbol_name
);
1241 /* Close function_attributes and attributes */
1242 ret
= mi_lttng_close_multi_element(writer
, 2);
1248 int mi_lttng_events_open(struct mi_writer
*writer
)
1250 return mi_lttng_writer_open_element(writer
, config_element_events
);
1254 int mi_lttng_event(struct mi_writer
*writer
,
1255 struct lttng_event
*event
, int is_open
, enum lttng_domain_type domain
)
1259 ret
= mi_lttng_event_common_attributes(writer
, event
);
1264 switch (event
->type
) {
1265 case LTTNG_EVENT_TRACEPOINT
:
1267 if (event
->loglevel
!= -1) {
1268 ret
= mi_lttng_event_tracepoint_loglevel(writer
, event
, domain
);
1270 ret
= mi_lttng_event_tracepoint_no_loglevel(writer
, event
);
1274 case LTTNG_EVENT_FUNCTION
:
1276 case LTTNG_EVENT_PROBE
:
1277 ret
= mi_lttng_event_function_probe(writer
, event
);
1279 case LTTNG_EVENT_FUNCTION_ENTRY
:
1280 ret
= mi_lttng_event_function_entry(writer
, event
);
1282 case LTTNG_EVENT_ALL
:
1289 ret
= mi_lttng_writer_close_element(writer
);
1297 int mi_lttng_trackers_open(struct mi_writer
*writer
)
1299 return mi_lttng_writer_open_element(writer
, config_element_trackers
);
1303 int mi_lttng_pid_tracker_open(struct mi_writer
*writer
)
1307 /* Open element pid_tracker */
1308 ret
= mi_lttng_writer_open_element(writer
, config_element_pid_tracker
);
1313 /* Open targets element */
1314 ret
= mi_lttng_targets_open(writer
);
1320 int mi_lttng_pids_open(struct mi_writer
*writer
)
1322 return mi_lttng_writer_open_element(writer
, config_element_pids
);
1326 * TODO: move the listing of pid for user agent to process semantic on
1327 * mi api bump. The use of process element break the mi api.
1330 int mi_lttng_pid(struct mi_writer
*writer
, pid_t pid
, const char *name
,
1335 /* Open pid process */
1336 ret
= mi_lttng_writer_open_element(writer
, config_element_pid
);
1341 /* Writing pid number */
1342 ret
= mi_lttng_writer_write_element_signed_int(writer
,
1343 mi_lttng_element_pid_id
, (int)pid
);
1348 /* Writing name of the process */
1350 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1359 ret
= mi_lttng_writer_close_element(writer
);
1367 int mi_lttng_targets_open(struct mi_writer
*writer
)
1369 return mi_lttng_writer_open_element(writer
,
1370 config_element_targets
);
1374 int mi_lttng_pid_target(struct mi_writer
*writer
, pid_t pid
, int is_open
)
1378 ret
= mi_lttng_writer_open_element(writer
,
1379 config_element_target_pid
);
1384 /* Writing pid number
1385 * Special case for element all on track untrack command
1386 * All pid is represented as wildcard *
1388 if ((int) pid
== -1) {
1389 ret
= mi_lttng_writer_write_element_string(writer
,
1391 mi_lttng_element_track_untrack_all_wildcard
);
1393 ret
= mi_lttng_writer_write_element_signed_int(writer
,
1394 config_element_pid
, (int) pid
);
1401 ret
= mi_lttng_writer_close_element(writer
);
1412 int mi_lttng_event_fields_open(struct mi_writer
*writer
)
1414 return mi_lttng_writer_open_element(writer
, mi_lttng_element_event_fields
);
1418 int mi_lttng_event_field(struct mi_writer
*writer
,
1419 struct lttng_event_field
*field
)
1423 if (!field
->field_name
[0]) {
1429 ret
= mi_lttng_writer_open_element(writer
, mi_lttng_element_event_field
);
1434 if (!field
->field_name
[0]) {
1439 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1446 ret
= mi_lttng_writer_write_element_string(writer
, config_element_type
,
1447 mi_lttng_eventfieldtype_string(field
->type
));
1453 ret
= mi_lttng_writer_write_element_signed_int(writer
,
1454 mi_lttng_element_nowrite
, field
->nowrite
);
1460 /* Close field element */
1461 ret
= mi_lttng_writer_close_element(writer
);
1468 int mi_lttng_perf_counter_context(struct mi_writer
*writer
,
1469 struct lttng_event_perf_counter_ctx
*perf_context
)
1473 /* Open perf_counter_context */
1474 ret
= mi_lttng_writer_open_element(writer
,
1475 mi_lttng_element_perf_counter_context
);
1481 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1482 config_element_type
, perf_context
->type
);
1488 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1489 config_element_config
, perf_context
->config
);
1494 /* Name of the perf counter */
1495 ret
= mi_lttng_writer_write_element_string(writer
,
1496 config_element_name
, perf_context
->name
);
1501 /* Close perf_counter_context */
1502 ret
= mi_lttng_writer_close_element(writer
);
1508 int mi_lttng_app_context(struct mi_writer
*writer
,
1509 const char *provider_name
, const char *ctx_name
)
1514 ret
= mi_lttng_writer_open_element(writer
,
1515 config_element_context_app
);
1521 ret
= mi_lttng_writer_write_element_string(writer
,
1522 config_element_context_app_provider_name
,
1529 ret
= mi_lttng_writer_write_element_string(writer
,
1530 config_element_context_app_ctx_name
, ctx_name
);
1536 ret
= mi_lttng_writer_close_element(writer
);
1542 int mi_lttng_context(struct mi_writer
*writer
,
1543 struct lttng_event_context
*context
, int is_open
)
1548 ret
= mi_lttng_writer_open_element(writer
, config_element_context
);
1553 /* Special case for PERF_*_COUNTER
1554 * print the lttng_event_perf_counter_ctx*/
1555 switch (context
->ctx
) {
1556 case LTTNG_EVENT_CONTEXT_PERF_COUNTER
:
1557 case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER
:
1558 case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER
:
1560 struct lttng_event_perf_counter_ctx
*perf_context
=
1561 &context
->u
.perf_counter
;
1562 ret
= mi_lttng_perf_counter_context(writer
, perf_context
);
1568 case LTTNG_EVENT_CONTEXT_APP_CONTEXT
:
1570 ret
= mi_lttng_app_context(writer
,
1571 context
->u
.app_ctx
.provider_name
,
1572 context
->u
.app_ctx
.ctx_name
);
1580 const char *type_string
= mi_lttng_event_contexttype_string(
1583 ret
= -LTTNG_ERR_INVALID
;
1587 /* Print context type */
1588 ret
= mi_lttng_writer_write_element_string(writer
,
1589 config_element_type
, type_string
);
1596 ret
= mi_lttng_writer_close_element(writer
);
1604 int mi_lttng_snapshot_output_session_name(struct mi_writer
*writer
,
1605 const char *session_name
)
1609 /* Open session element */
1610 ret
= mi_lttng_writer_open_element(writer
, config_element_session
);
1615 /* Snapshot output list for current session name */
1616 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1622 /* Open element snapshots (sequence one snapshot) */
1623 ret
= mi_lttng_writer_open_element(writer
, mi_lttng_element_snapshots
);
1633 int mi_lttng_snapshot_list_output(struct mi_writer
*writer
,
1634 struct lttng_snapshot_output
*output
)
1638 /* Open element snapshot output */
1639 ret
= mi_lttng_writer_open_element(writer
,
1640 mi_lttng_element_command_snapshot
);
1645 /* ID of the snapshot output */
1646 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1647 mi_lttng_element_id
, output
->id
);
1652 /* Name of the output */
1653 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1659 /* Destination of the output (ctrl_url)*/
1660 ret
= mi_lttng_writer_write_element_string(writer
,
1661 mi_lttng_element_snapshot_ctrl_url
, output
->ctrl_url
);
1666 /* Destination of the output (data_url) */
1667 ret
= mi_lttng_writer_write_element_string(writer
,
1668 mi_lttng_element_snapshot_data_url
, output
->data_url
);
1673 /* total size of all stream combined */
1674 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1675 mi_lttng_element_snapshot_max_size
, output
->max_size
);
1680 /* Close snapshot output element */
1681 ret
= mi_lttng_writer_close_element(writer
);
1688 int mi_lttng_snapshot_del_output(struct mi_writer
*writer
, int id
,
1689 const char *name
, const char *current_session_name
)
1693 /* Open element del_snapshot */
1694 ret
= mi_lttng_writer_open_element(writer
,
1695 mi_lttng_element_command_snapshot
);
1701 if (id
!= UINT32_MAX
) {
1702 /* "Snapshot output "id" successfully deleted
1703 * for "current_session_name"
1704 * ID of the snapshot output
1706 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1707 mi_lttng_element_id
, id
);
1712 /* "Snapshot output "name" successfully deleted
1713 * for session "current_session_name"
1714 * Name of the output
1716 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1723 /* Snapshot was deleted for session "current_session_name"*/
1724 ret
= mi_lttng_writer_write_element_string(writer
,
1725 mi_lttng_element_snapshot_session_name
,
1726 current_session_name
);
1731 /* Close snapshot element */
1732 ret
= mi_lttng_writer_close_element(writer
);
1739 int mi_lttng_snapshot_add_output(struct mi_writer
*writer
,
1740 const char *current_session_name
, const char *n_ptr
,
1741 struct lttng_snapshot_output
*output
)
1745 /* Open element snapshot */
1746 ret
= mi_lttng_writer_open_element(writer
,
1747 mi_lttng_element_command_snapshot
);
1752 /* Snapshot output id */
1753 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1754 mi_lttng_element_id
, output
->id
);
1759 /* Snapshot output names */
1760 ret
= mi_lttng_writer_write_element_string(writer
,
1761 config_element_name
, n_ptr
);
1766 /* Destination of the output (ctrl_url)*/
1767 ret
= mi_lttng_writer_write_element_string(writer
,
1768 mi_lttng_element_snapshot_ctrl_url
, output
->ctrl_url
);
1773 /* Snapshot added for session "current_session_name"*/
1774 ret
= mi_lttng_writer_write_element_string(writer
,
1775 mi_lttng_element_snapshot_session_name
, current_session_name
);
1780 /* total size of all stream combined */
1781 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1782 mi_lttng_element_snapshot_max_size
, output
->max_size
);
1787 /* Close snapshot element */
1788 ret
= mi_lttng_writer_close_element(writer
);
1795 int mi_lttng_snapshot_record(struct mi_writer
*writer
,
1796 const char *current_session_name
, const char *url
,
1797 const char *cmdline_ctrl_url
, const char *cmdline_data_url
)
1801 /* Open element snapshot */
1802 ret
= mi_lttng_writer_open_element(writer
,
1803 mi_lttng_element_command_snapshot
);
1809 * If a valid an URL was given, serialize it,
1810 * else take the command line data and ctrl urls*/
1812 /* Destination of the output (ctrl_url)*/
1813 ret
= mi_lttng_writer_write_element_string(writer
,
1814 mi_lttng_element_snapshot_ctrl_url
, url
);
1818 } else if (cmdline_ctrl_url
) {
1819 /* Destination of the output (ctrl_url)*/
1820 ret
= mi_lttng_writer_write_element_string(writer
,
1821 mi_lttng_element_snapshot_ctrl_url
, cmdline_ctrl_url
);
1826 /* Destination of the output (data_url) */
1827 ret
= mi_lttng_writer_write_element_string(writer
,
1828 mi_lttng_element_snapshot_data_url
, cmdline_data_url
);
1834 /* Close record_snapshot element */
1835 ret
= mi_lttng_writer_close_element(writer
);