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_rotate_status
= "status";
190 LTTNG_HIDDEN
const char * const mi_lttng_element_rotation_schedule
= "rotation_schedule";
191 LTTNG_HIDDEN
const char * const mi_lttng_element_rotation_schedules
= "rotation_schedules";
192 LTTNG_HIDDEN
const char * const mi_lttng_element_rotation_schedule_result
= "rotation_schedule_result";
193 LTTNG_HIDDEN
const char * const mi_lttng_element_rotation_schedule_results
= "rotation_schedule_results";
194 LTTNG_HIDDEN
const char * const mi_lttng_element_rotation_schedule_periodic
= "periodic";
195 LTTNG_HIDDEN
const char * const mi_lttng_element_rotation_schedule_periodic_time_us
= "time_us";
196 LTTNG_HIDDEN
const char * const mi_lttng_element_rotation_schedule_size_threshold
= "size_threshold";
197 LTTNG_HIDDEN
const char * const mi_lttng_element_rotation_schedule_size_threshold_bytes
= "bytes";
199 /* String related to add-context command */
200 LTTNG_HIDDEN
const char * const mi_lttng_element_context_symbol
= "symbol";
202 /* Deprecated symbols preserved for ABI compatibility. */
203 const char * const mi_lttng_context_type_perf_counter
;
204 const char * const mi_lttng_context_type_perf_cpu_counter
;
205 const char * const mi_lttng_context_type_perf_thread_counter
;
206 const char * const mi_lttng_element_track_untrack_pid_target
;
207 const char * const mi_lttng_element_track_untrack_targets
;
208 const char * const mi_lttng_element_calibrate
;
209 const char * const mi_lttng_element_calibrate_function
;
210 const char * const mi_lttng_element_command_calibrate
;
212 /* This is a merge of jul loglevel and regular loglevel
213 * Those should never overlap by definition
214 * (see struct lttng_event loglevel)
217 const char *mi_lttng_loglevel_string(int value
, enum lttng_domain_type domain
)
220 case LTTNG_DOMAIN_KERNEL
:
221 case LTTNG_DOMAIN_UST
:
224 return mi_lttng_element_empty
;
225 case LTTNG_LOGLEVEL_EMERG
:
226 return mi_lttng_loglevel_str_emerg
;
227 case LTTNG_LOGLEVEL_ALERT
:
228 return mi_lttng_loglevel_str_alert
;
229 case LTTNG_LOGLEVEL_CRIT
:
230 return mi_lttng_loglevel_str_crit
;
231 case LTTNG_LOGLEVEL_ERR
:
232 return mi_lttng_loglevel_str_err
;
233 case LTTNG_LOGLEVEL_WARNING
:
234 return mi_lttng_loglevel_str_warning
;
235 case LTTNG_LOGLEVEL_NOTICE
:
236 return mi_lttng_loglevel_str_notice
;
237 case LTTNG_LOGLEVEL_INFO
:
238 return mi_lttng_loglevel_str_info
;
239 case LTTNG_LOGLEVEL_DEBUG_SYSTEM
:
240 return mi_lttng_loglevel_str_debug_system
;
241 case LTTNG_LOGLEVEL_DEBUG_PROGRAM
:
242 return mi_lttng_loglevel_str_debug_program
;
243 case LTTNG_LOGLEVEL_DEBUG_PROCESS
:
244 return mi_lttng_loglevel_str_debug_process
;
245 case LTTNG_LOGLEVEL_DEBUG_MODULE
:
246 return mi_lttng_loglevel_str_debug_module
;
247 case LTTNG_LOGLEVEL_DEBUG_UNIT
:
248 return mi_lttng_loglevel_str_debug_unit
;
249 case LTTNG_LOGLEVEL_DEBUG_FUNCTION
:
250 return mi_lttng_loglevel_str_debug_function
;
251 case LTTNG_LOGLEVEL_DEBUG_LINE
:
252 return mi_lttng_loglevel_str_debug_line
;
253 case LTTNG_LOGLEVEL_DEBUG
:
254 return mi_lttng_loglevel_str_debug
;
256 return mi_lttng_loglevel_str_unknown
;
259 case LTTNG_DOMAIN_LOG4J
:
262 return mi_lttng_element_empty
;
263 case LTTNG_LOGLEVEL_LOG4J_OFF
:
264 return mi_lttng_loglevel_str_log4j_off
;
265 case LTTNG_LOGLEVEL_LOG4J_FATAL
:
266 return mi_lttng_loglevel_str_log4j_fatal
;
267 case LTTNG_LOGLEVEL_LOG4J_ERROR
:
268 return mi_lttng_loglevel_str_log4j_error
;
269 case LTTNG_LOGLEVEL_LOG4J_WARN
:
270 return mi_lttng_loglevel_str_log4j_warn
;
271 case LTTNG_LOGLEVEL_LOG4J_INFO
:
272 return mi_lttng_loglevel_str_log4j_info
;
273 case LTTNG_LOGLEVEL_LOG4J_DEBUG
:
274 return mi_lttng_loglevel_str_log4j_debug
;
275 case LTTNG_LOGLEVEL_LOG4J_TRACE
:
276 return mi_lttng_loglevel_str_log4j_trace
;
277 case LTTNG_LOGLEVEL_LOG4J_ALL
:
278 return mi_lttng_loglevel_str_log4j_all
;
280 return mi_lttng_loglevel_str_unknown
;
283 case LTTNG_DOMAIN_JUL
:
286 return mi_lttng_element_empty
;
287 case LTTNG_LOGLEVEL_JUL_OFF
:
288 return mi_lttng_loglevel_str_jul_off
;
289 case LTTNG_LOGLEVEL_JUL_SEVERE
:
290 return mi_lttng_loglevel_str_jul_severe
;
291 case LTTNG_LOGLEVEL_JUL_WARNING
:
292 return mi_lttng_loglevel_str_jul_warning
;
293 case LTTNG_LOGLEVEL_JUL_INFO
:
294 return mi_lttng_loglevel_str_jul_info
;
295 case LTTNG_LOGLEVEL_JUL_CONFIG
:
296 return mi_lttng_loglevel_str_jul_config
;
297 case LTTNG_LOGLEVEL_JUL_FINE
:
298 return mi_lttng_loglevel_str_jul_fine
;
299 case LTTNG_LOGLEVEL_JUL_FINER
:
300 return mi_lttng_loglevel_str_jul_finer
;
301 case LTTNG_LOGLEVEL_JUL_FINEST
:
302 return mi_lttng_loglevel_str_jul_finest
;
303 case LTTNG_LOGLEVEL_JUL_ALL
:
304 return mi_lttng_loglevel_str_jul_all
;
306 return mi_lttng_loglevel_str_unknown
;
309 case LTTNG_DOMAIN_PYTHON
:
311 case LTTNG_LOGLEVEL_PYTHON_CRITICAL
:
312 return mi_lttng_loglevel_str_python_critical
;
313 case LTTNG_LOGLEVEL_PYTHON_ERROR
:
314 return mi_lttng_loglevel_str_python_error
;
315 case LTTNG_LOGLEVEL_PYTHON_WARNING
:
316 return mi_lttng_loglevel_str_python_warning
;
317 case LTTNG_LOGLEVEL_PYTHON_INFO
:
318 return mi_lttng_loglevel_str_python_info
;
319 case LTTNG_LOGLEVEL_PYTHON_DEBUG
:
320 return mi_lttng_loglevel_str_python_debug
;
321 case LTTNG_LOGLEVEL_PYTHON_NOTSET
:
322 return mi_lttng_loglevel_str_python_notset
;
324 return mi_lttng_loglevel_str_unknown
;
328 return mi_lttng_loglevel_str_unknown
;
333 const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value
)
336 case LTTNG_EVENT_LOGLEVEL_ALL
:
337 return mi_lttng_loglevel_type_all
;
338 case LTTNG_EVENT_LOGLEVEL_RANGE
:
339 return mi_lttng_loglevel_type_range
;
340 case LTTNG_EVENT_LOGLEVEL_SINGLE
:
341 return mi_lttng_loglevel_type_single
;
343 return mi_lttng_loglevel_type_unknown
;
348 const char *mi_lttng_eventtype_string(enum lttng_event_type value
)
351 case LTTNG_EVENT_ALL
:
352 return config_event_type_all
;
353 case LTTNG_EVENT_TRACEPOINT
:
354 return config_event_type_tracepoint
;
355 case LTTNG_EVENT_PROBE
:
356 return config_event_type_probe
;
357 case LTTNG_EVENT_FUNCTION
:
358 return config_event_type_function
;
359 case LTTNG_EVENT_FUNCTION_ENTRY
:
360 return config_event_type_function_entry
;
361 case LTTNG_EVENT_SYSCALL
:
362 return config_event_type_syscall
;
363 case LTTNG_EVENT_NOOP
:
364 return config_event_type_noop
;
366 return mi_lttng_element_empty
;
371 const char *mi_lttng_event_contexttype_string(enum lttng_event_context_type val
)
374 case LTTNG_EVENT_CONTEXT_PID
:
375 return config_event_context_pid
;
376 case LTTNG_EVENT_CONTEXT_PROCNAME
:
377 return config_event_context_procname
;
378 case LTTNG_EVENT_CONTEXT_PRIO
:
379 return config_event_context_prio
;
380 case LTTNG_EVENT_CONTEXT_NICE
:
381 return config_event_context_nice
;
382 case LTTNG_EVENT_CONTEXT_VPID
:
383 return config_event_context_vpid
;
384 case LTTNG_EVENT_CONTEXT_TID
:
385 return config_event_context_tid
;
386 case LTTNG_EVENT_CONTEXT_VTID
:
387 return config_event_context_vtid
;
388 case LTTNG_EVENT_CONTEXT_PPID
:
389 return config_event_context_ppid
;
390 case LTTNG_EVENT_CONTEXT_VPPID
:
391 return config_event_context_vppid
;
392 case LTTNG_EVENT_CONTEXT_PTHREAD_ID
:
393 return config_event_context_pthread_id
;
394 case LTTNG_EVENT_CONTEXT_HOSTNAME
:
395 return config_event_context_hostname
;
396 case LTTNG_EVENT_CONTEXT_IP
:
397 return config_event_context_ip
;
398 case LTTNG_EVENT_CONTEXT_INTERRUPTIBLE
:
399 return config_event_context_interruptible
;
400 case LTTNG_EVENT_CONTEXT_PREEMPTIBLE
:
401 return config_event_context_preemptible
;
402 case LTTNG_EVENT_CONTEXT_NEED_RESCHEDULE
:
403 return config_event_context_need_reschedule
;
404 case LTTNG_EVENT_CONTEXT_MIGRATABLE
:
405 return config_event_context_migratable
;
406 case LTTNG_EVENT_CONTEXT_CALLSTACK_USER
:
407 return config_event_context_callstack_user
;
408 case LTTNG_EVENT_CONTEXT_CALLSTACK_KERNEL
:
409 return config_event_context_callstack_kernel
;
416 const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type val
)
419 case(LTTNG_EVENT_FIELD_INTEGER
):
420 return mi_lttng_element_type_integer
;
421 case(LTTNG_EVENT_FIELD_ENUM
):
422 return mi_lttng_element_type_enum
;
423 case(LTTNG_EVENT_FIELD_FLOAT
):
424 return mi_lttng_element_type_float
;
425 case(LTTNG_EVENT_FIELD_STRING
):
426 return mi_lttng_element_type_string
;
428 return mi_lttng_element_type_other
;
433 const char *mi_lttng_domaintype_string(enum lttng_domain_type value
)
435 /* Note: This is a *duplicate* of get_domain_str from bin/lttng/utils.c */
437 case LTTNG_DOMAIN_KERNEL
:
438 return config_domain_type_kernel
;
439 case LTTNG_DOMAIN_UST
:
440 return config_domain_type_ust
;
441 case LTTNG_DOMAIN_JUL
:
442 return config_domain_type_jul
;
443 case LTTNG_DOMAIN_LOG4J
:
444 return config_domain_type_log4j
;
445 case LTTNG_DOMAIN_PYTHON
:
446 return config_domain_type_python
;
448 /* Should not have an unknown domain */
455 const char *mi_lttng_buffertype_string(enum lttng_buffer_type value
)
458 case LTTNG_BUFFER_PER_PID
:
459 return config_buffer_type_per_pid
;
460 case LTTNG_BUFFER_PER_UID
:
461 return config_buffer_type_per_uid
;
462 case LTTNG_BUFFER_GLOBAL
:
463 return config_buffer_type_global
;
465 /* Should not have an unknow buffer type */
472 struct mi_writer
*mi_lttng_writer_create(int fd_output
, int mi_output_type
)
474 struct mi_writer
*mi_writer
;
476 mi_writer
= zmalloc(sizeof(struct mi_writer
));
478 PERROR("zmalloc mi_writer_create");
481 if (mi_output_type
== LTTNG_MI_XML
) {
482 mi_writer
->writer
= config_writer_create(fd_output
, 0);
483 if (!mi_writer
->writer
) {
486 mi_writer
->type
= LTTNG_MI_XML
;
500 int mi_lttng_writer_destroy(struct mi_writer
*writer
)
509 ret
= config_writer_destroy(writer
->writer
);
520 int mi_lttng_writer_command_open(struct mi_writer
*writer
, const char *command
)
525 * A command is always the MI's root node, it must declare the current
526 * namespace and schema URIs and the schema's version.
528 ret
= config_writer_open_element(writer
->writer
,
529 mi_lttng_element_command
);
534 ret
= config_writer_write_attribute(writer
->writer
,
535 mi_lttng_xmlns
, DEFAULT_LTTNG_MI_NAMESPACE
);
540 ret
= config_writer_write_attribute(writer
->writer
,
541 mi_lttng_xmlns_xsi
, mi_lttng_w3_schema_uri
);
546 ret
= config_writer_write_attribute(writer
->writer
,
547 mi_lttng_schema_location
,
548 mi_lttng_schema_location_uri
);
553 ret
= config_writer_write_attribute(writer
->writer
,
554 mi_lttng_schema_version
,
555 mi_lttng_schema_version_value
);
560 ret
= mi_lttng_writer_write_element_string(writer
,
561 mi_lttng_element_command_name
, command
);
567 int mi_lttng_writer_command_close(struct mi_writer
*writer
)
569 return mi_lttng_writer_close_element(writer
);
573 int mi_lttng_writer_open_element(struct mi_writer
*writer
,
574 const char *element_name
)
576 return config_writer_open_element(writer
->writer
, element_name
);
580 int mi_lttng_writer_close_element(struct mi_writer
*writer
)
582 return config_writer_close_element(writer
->writer
);
586 int mi_lttng_close_multi_element(struct mi_writer
*writer
,
587 unsigned int nb_element
)
591 if (nb_element
< 1) {
595 for (i
= 0; i
< nb_element
; i
++) {
596 ret
= mi_lttng_writer_close_element(writer
);
606 int mi_lttng_writer_write_element_unsigned_int(struct mi_writer
*writer
,
607 const char *element_name
, uint64_t value
)
609 return config_writer_write_element_unsigned_int(writer
->writer
,
610 element_name
, value
);
614 int mi_lttng_writer_write_element_signed_int(struct mi_writer
*writer
,
615 const char *element_name
, int64_t value
)
617 return config_writer_write_element_signed_int(writer
->writer
,
618 element_name
, value
);
622 int mi_lttng_writer_write_element_bool(struct mi_writer
*writer
,
623 const char *element_name
, int value
)
625 return config_writer_write_element_bool(writer
->writer
,
626 element_name
, value
);
630 int mi_lttng_writer_write_element_string(struct mi_writer
*writer
,
631 const char *element_name
, const char *value
)
633 return config_writer_write_element_string(writer
->writer
,
634 element_name
, value
);
638 int mi_lttng_version(struct mi_writer
*writer
, struct mi_lttng_version
*version
,
639 const char *lttng_description
, const char *lttng_license
)
644 ret
= mi_lttng_writer_open_element(writer
, mi_lttng_element_version
);
649 /* Version string (contain info like rc etc.) */
650 ret
= mi_lttng_writer_write_element_string(writer
,
651 mi_lttng_element_version_str
, version
->version
);
656 /* Major version number */
657 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
658 mi_lttng_element_version_major
, version
->version_major
);
663 /* Minor version number */
664 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
665 mi_lttng_element_version_minor
, version
->version_minor
);
670 /* Commit version number */
671 ret
= mi_lttng_writer_write_element_string(writer
,
672 mi_lttng_element_version_commit
, version
->version_commit
);
678 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
679 mi_lttng_element_version_patch_level
, version
->version_patchlevel
);
684 /* Name of the version */
685 ret
= mi_lttng_writer_write_element_string(writer
,
686 config_element_name
, version
->version_name
);
691 /* Description mostly related to beer... */
692 ret
= mi_lttng_writer_write_element_string(writer
,
693 mi_lttng_element_version_description
, lttng_description
);
699 ret
= mi_lttng_writer_write_element_string(writer
,
700 mi_lttng_element_version_web
, version
->package_url
);
705 /* License: free as in free beer...no...*speech* */
706 ret
= mi_lttng_writer_write_element_string(writer
,
707 mi_lttng_element_version_license
, lttng_license
);
712 /* Close version element */
713 ret
= mi_lttng_writer_close_element(writer
);
720 int mi_lttng_sessions_open(struct mi_writer
*writer
)
722 return mi_lttng_writer_open_element(writer
, config_element_sessions
);
726 int mi_lttng_session(struct mi_writer
*writer
,
727 struct lttng_session
*session
, int is_open
)
733 /* Open sessions element */
734 ret
= mi_lttng_writer_open_element(writer
,
735 config_element_session
);
740 /* Name of the session */
741 ret
= mi_lttng_writer_write_element_string(writer
,
742 config_element_name
, session
->name
);
748 ret
= mi_lttng_writer_write_element_string(writer
,
749 config_element_path
, session
->path
);
755 ret
= mi_lttng_writer_write_element_bool(writer
,
756 config_element_enabled
, session
->enabled
);
762 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
763 config_element_snapshot_mode
, session
->snapshot_mode
);
768 /* Live timer interval in usec */
769 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
770 config_element_live_timer_interval
,
771 session
->live_timer_interval
);
777 /* Closing session element */
778 ret
= mi_lttng_writer_close_element(writer
);
786 int mi_lttng_domains_open(struct mi_writer
*writer
)
788 return mi_lttng_writer_open_element(writer
, config_element_domains
);
792 int mi_lttng_domain(struct mi_writer
*writer
,
793 struct lttng_domain
*domain
, int is_open
)
796 const char *str_domain
;
797 const char *str_buffer
;
801 /* Open domain element */
802 ret
= mi_lttng_writer_open_element(writer
, config_element_domain
);
808 str_domain
= mi_lttng_domaintype_string(domain
->type
);
809 ret
= mi_lttng_writer_write_element_string(writer
, config_element_type
,
816 str_buffer
= mi_lttng_buffertype_string(domain
->buf_type
);
817 ret
= mi_lttng_writer_write_element_string(writer
,
818 config_element_buffer_type
, str_buffer
);
824 * This union is not currently used and was added for
825 * future ust domain support.
830 /* Closing domain element */
831 ret
= mi_lttng_writer_close_element(writer
);
840 int mi_lttng_channels_open(struct mi_writer
*writer
)
842 return mi_lttng_writer_open_element(writer
, config_element_channels
);
846 int mi_lttng_channel(struct mi_writer
*writer
,
847 struct lttng_channel
*channel
, int is_open
)
853 /* Opening channel element */
854 ret
= mi_lttng_writer_open_element(writer
, config_element_channel
);
860 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
867 ret
= mi_lttng_writer_write_element_bool(writer
,
868 config_element_enabled
, channel
->enabled
);
874 ret
= mi_lttng_channel_attr(writer
, &channel
->attr
);
880 /* Closing channel element */
881 ret
= mi_lttng_writer_close_element(writer
);
891 int mi_lttng_channel_attr(struct mi_writer
*writer
,
892 struct lttng_channel_attr
*attr
)
895 struct lttng_channel
*chan
= caa_container_of(attr
,
896 struct lttng_channel
, attr
);
897 uint64_t discarded_events
, lost_packets
, monitor_timer_interval
;
898 int64_t blocking_timeout
;
902 ret
= lttng_channel_get_discarded_event_count(chan
, &discarded_events
);
907 ret
= lttng_channel_get_lost_packet_count(chan
, &lost_packets
);
912 ret
= lttng_channel_get_monitor_timer_interval(chan
,
913 &monitor_timer_interval
);
918 ret
= lttng_channel_get_blocking_timeout(chan
,
924 /* Opening Attributes */
925 ret
= mi_lttng_writer_open_element(writer
, config_element_attributes
);
931 ret
= mi_lttng_writer_write_element_string(writer
,
932 config_element_overwrite_mode
,
933 attr
->overwrite
? config_overwrite_mode_overwrite
:
934 config_overwrite_mode_discard
);
939 /* Sub buffer size in byte */
940 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
941 config_element_subbuf_size
, attr
->subbuf_size
);
946 /* Number of subbuffer (power of two) */
947 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
948 config_element_num_subbuf
,
954 /* Switch timer interval in usec */
955 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
956 config_element_switch_timer_interval
,
957 attr
->switch_timer_interval
);
962 /* Read timer interval in usec */
963 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
964 config_element_read_timer_interval
,
965 attr
->read_timer_interval
);
970 /* Monitor timer interval in usec */
971 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
972 config_element_monitor_timer_interval
,
973 monitor_timer_interval
);
978 /* Retry timeout in usec */
979 ret
= mi_lttng_writer_write_element_signed_int(writer
,
980 config_element_blocking_timeout
,
987 ret
= mi_lttng_writer_write_element_string(writer
,
988 config_element_output_type
,
989 attr
->output
== LTTNG_EVENT_SPLICE
?
990 config_output_type_splice
: config_output_type_mmap
);
995 /* Tracefile size in bytes */
996 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
997 config_element_tracefile_size
, attr
->tracefile_size
);
1002 /* Count of tracefiles */
1003 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1004 config_element_tracefile_count
,
1005 attr
->tracefile_count
);
1010 /* Live timer interval in usec*/
1011 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1012 config_element_live_timer_interval
,
1013 attr
->live_timer_interval
);
1018 /* Discarded events */
1019 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1020 config_element_discarded_events
,
1027 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1028 config_element_lost_packets
,
1034 /* Closing attributes */
1035 ret
= mi_lttng_writer_close_element(writer
);
1045 int mi_lttng_event_common_attributes(struct mi_writer
*writer
,
1046 struct lttng_event
*event
)
1049 const char *filter_expression
;
1051 /* Open event element */
1052 ret
= mi_lttng_writer_open_element(writer
, config_element_event
);
1058 ret
= mi_lttng_writer_write_element_string(writer
,
1059 config_element_name
, event
->name
);
1065 ret
= mi_lttng_writer_write_element_string(writer
,
1066 config_element_type
, mi_lttng_eventtype_string(event
->type
));
1071 /* Is event enabled */
1072 ret
= mi_lttng_writer_write_element_bool(writer
,
1073 config_element_enabled
, event
->enabled
);
1078 /* Event filter expression */
1079 ret
= lttng_event_get_filter_expression(event
, &filter_expression
);
1084 if (filter_expression
) {
1085 ret
= mi_lttng_writer_write_element_string(writer
,
1086 config_element_filter_expression
,
1097 static int write_event_exclusions(struct mi_writer
*writer
,
1098 struct lttng_event
*event
)
1102 int exclusion_count
;
1104 /* Open event exclusions */
1105 ret
= mi_lttng_writer_open_element(writer
, config_element_exclusions
);
1110 exclusion_count
= lttng_event_get_exclusion_name_count(event
);
1111 if (exclusion_count
< 0) {
1112 ret
= exclusion_count
;
1116 for (i
= 0; i
< exclusion_count
; i
++) {
1119 ret
= lttng_event_get_exclusion_name(event
, i
, &name
);
1121 /* Close exclusions */
1122 mi_lttng_writer_close_element(writer
);
1126 ret
= mi_lttng_writer_write_element_string(writer
,
1127 config_element_exclusion
, name
);
1129 /* Close exclusions */
1130 mi_lttng_writer_close_element(writer
);
1135 /* Close exclusions */
1136 ret
= mi_lttng_writer_close_element(writer
);
1143 int mi_lttng_event_tracepoint_loglevel(struct mi_writer
*writer
,
1144 struct lttng_event
*event
, enum lttng_domain_type domain
)
1148 /* Event loglevel */
1149 ret
= mi_lttng_writer_write_element_string(writer
,
1150 config_element_loglevel
,
1151 mi_lttng_loglevel_string(event
->loglevel
, domain
));
1156 /* Log level type */
1157 ret
= mi_lttng_writer_write_element_string(writer
,
1158 config_element_loglevel_type
,
1159 mi_lttng_logleveltype_string(event
->loglevel_type
));
1164 /* Event exclusions */
1165 ret
= write_event_exclusions(writer
, event
);
1172 int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer
*writer
,
1173 struct lttng_event
*event
)
1175 /* event exclusion filter */
1176 return write_event_exclusions(writer
, event
);
1180 int mi_lttng_event_function_probe(struct mi_writer
*writer
,
1181 struct lttng_event
*event
)
1185 ret
= mi_lttng_writer_open_element(writer
, config_element_attributes
);
1190 ret
= mi_lttng_writer_open_element(writer
, config_element_probe_attributes
);
1195 if (event
->attr
.probe
.addr
!= 0) {
1196 /* event probe address */
1197 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1198 config_element_address
, event
->attr
.probe
.addr
);
1203 /* event probe offset */
1204 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1205 config_element_offset
, event
->attr
.probe
.offset
);
1210 /* event probe symbol_name */
1211 ret
= mi_lttng_writer_write_element_string(writer
,
1212 config_element_symbol_name
, event
->attr
.probe
.symbol_name
);
1218 /* Close probe_attributes and attributes */
1219 ret
= mi_lttng_close_multi_element(writer
, 2);
1225 int mi_lttng_event_function_entry(struct mi_writer
*writer
,
1226 struct lttng_event
*event
)
1230 ret
= mi_lttng_writer_open_element(writer
, config_element_attributes
);
1235 ret
= mi_lttng_writer_open_element(writer
, config_element_probe_attributes
);
1240 /* event probe symbol_name */
1241 ret
= mi_lttng_writer_write_element_string(writer
,
1242 config_element_symbol_name
, event
->attr
.ftrace
.symbol_name
);
1247 /* Close function_attributes and attributes */
1248 ret
= mi_lttng_close_multi_element(writer
, 2);
1254 int mi_lttng_events_open(struct mi_writer
*writer
)
1256 return mi_lttng_writer_open_element(writer
, config_element_events
);
1260 int mi_lttng_event(struct mi_writer
*writer
,
1261 struct lttng_event
*event
, int is_open
, enum lttng_domain_type domain
)
1265 ret
= mi_lttng_event_common_attributes(writer
, event
);
1270 switch (event
->type
) {
1271 case LTTNG_EVENT_TRACEPOINT
:
1273 if (event
->loglevel
!= -1) {
1274 ret
= mi_lttng_event_tracepoint_loglevel(writer
, event
, domain
);
1276 ret
= mi_lttng_event_tracepoint_no_loglevel(writer
, event
);
1280 case LTTNG_EVENT_FUNCTION
:
1282 case LTTNG_EVENT_PROBE
:
1283 ret
= mi_lttng_event_function_probe(writer
, event
);
1285 case LTTNG_EVENT_FUNCTION_ENTRY
:
1286 ret
= mi_lttng_event_function_entry(writer
, event
);
1288 case LTTNG_EVENT_ALL
:
1295 ret
= mi_lttng_writer_close_element(writer
);
1303 int mi_lttng_trackers_open(struct mi_writer
*writer
)
1305 return mi_lttng_writer_open_element(writer
, config_element_trackers
);
1309 int mi_lttng_pid_tracker_open(struct mi_writer
*writer
)
1313 /* Open element pid_tracker */
1314 ret
= mi_lttng_writer_open_element(writer
, config_element_pid_tracker
);
1319 /* Open targets element */
1320 ret
= mi_lttng_targets_open(writer
);
1326 int mi_lttng_pids_open(struct mi_writer
*writer
)
1328 return mi_lttng_writer_open_element(writer
, config_element_pids
);
1332 * TODO: move the listing of pid for user agent to process semantic on
1333 * mi api bump. The use of process element break the mi api.
1336 int mi_lttng_pid(struct mi_writer
*writer
, pid_t pid
, const char *name
,
1341 /* Open pid process */
1342 ret
= mi_lttng_writer_open_element(writer
, config_element_pid
);
1347 /* Writing pid number */
1348 ret
= mi_lttng_writer_write_element_signed_int(writer
,
1349 mi_lttng_element_pid_id
, (int)pid
);
1354 /* Writing name of the process */
1356 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1365 ret
= mi_lttng_writer_close_element(writer
);
1373 int mi_lttng_targets_open(struct mi_writer
*writer
)
1375 return mi_lttng_writer_open_element(writer
,
1376 config_element_targets
);
1380 int mi_lttng_pid_target(struct mi_writer
*writer
, pid_t pid
, int is_open
)
1384 ret
= mi_lttng_writer_open_element(writer
,
1385 config_element_target_pid
);
1390 /* Writing pid number
1391 * Special case for element all on track untrack command
1392 * All pid is represented as wildcard *
1394 if ((int) pid
== -1) {
1395 ret
= mi_lttng_writer_write_element_string(writer
,
1397 mi_lttng_element_track_untrack_all_wildcard
);
1399 ret
= mi_lttng_writer_write_element_signed_int(writer
,
1400 config_element_pid
, (int) pid
);
1407 ret
= mi_lttng_writer_close_element(writer
);
1418 int mi_lttng_event_fields_open(struct mi_writer
*writer
)
1420 return mi_lttng_writer_open_element(writer
, mi_lttng_element_event_fields
);
1424 int mi_lttng_event_field(struct mi_writer
*writer
,
1425 struct lttng_event_field
*field
)
1429 if (!field
->field_name
[0]) {
1435 ret
= mi_lttng_writer_open_element(writer
, mi_lttng_element_event_field
);
1440 if (!field
->field_name
[0]) {
1445 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1452 ret
= mi_lttng_writer_write_element_string(writer
, config_element_type
,
1453 mi_lttng_eventfieldtype_string(field
->type
));
1459 ret
= mi_lttng_writer_write_element_signed_int(writer
,
1460 mi_lttng_element_nowrite
, field
->nowrite
);
1466 /* Close field element */
1467 ret
= mi_lttng_writer_close_element(writer
);
1474 int mi_lttng_perf_counter_context(struct mi_writer
*writer
,
1475 struct lttng_event_perf_counter_ctx
*perf_context
)
1479 /* Open perf_counter_context */
1480 ret
= mi_lttng_writer_open_element(writer
,
1481 mi_lttng_element_perf_counter_context
);
1487 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1488 config_element_type
, perf_context
->type
);
1494 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1495 config_element_config
, perf_context
->config
);
1500 /* Name of the perf counter */
1501 ret
= mi_lttng_writer_write_element_string(writer
,
1502 config_element_name
, perf_context
->name
);
1507 /* Close perf_counter_context */
1508 ret
= mi_lttng_writer_close_element(writer
);
1514 int mi_lttng_app_context(struct mi_writer
*writer
,
1515 const char *provider_name
, const char *ctx_name
)
1520 ret
= mi_lttng_writer_open_element(writer
,
1521 config_element_context_app
);
1527 ret
= mi_lttng_writer_write_element_string(writer
,
1528 config_element_context_app_provider_name
,
1535 ret
= mi_lttng_writer_write_element_string(writer
,
1536 config_element_context_app_ctx_name
, ctx_name
);
1542 ret
= mi_lttng_writer_close_element(writer
);
1548 int mi_lttng_context(struct mi_writer
*writer
,
1549 struct lttng_event_context
*context
, int is_open
)
1554 ret
= mi_lttng_writer_open_element(writer
, config_element_context
);
1559 /* Special case for PERF_*_COUNTER
1560 * print the lttng_event_perf_counter_ctx*/
1561 switch (context
->ctx
) {
1562 case LTTNG_EVENT_CONTEXT_PERF_COUNTER
:
1563 case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER
:
1564 case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER
:
1566 struct lttng_event_perf_counter_ctx
*perf_context
=
1567 &context
->u
.perf_counter
;
1568 ret
= mi_lttng_perf_counter_context(writer
, perf_context
);
1574 case LTTNG_EVENT_CONTEXT_APP_CONTEXT
:
1576 ret
= mi_lttng_app_context(writer
,
1577 context
->u
.app_ctx
.provider_name
,
1578 context
->u
.app_ctx
.ctx_name
);
1586 const char *type_string
= mi_lttng_event_contexttype_string(
1589 ret
= -LTTNG_ERR_INVALID
;
1593 /* Print context type */
1594 ret
= mi_lttng_writer_write_element_string(writer
,
1595 config_element_type
, type_string
);
1602 ret
= mi_lttng_writer_close_element(writer
);
1610 int mi_lttng_snapshot_output_session_name(struct mi_writer
*writer
,
1611 const char *session_name
)
1615 /* Open session element */
1616 ret
= mi_lttng_writer_open_element(writer
, config_element_session
);
1621 /* Snapshot output list for current session name */
1622 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1628 /* Open element snapshots (sequence one snapshot) */
1629 ret
= mi_lttng_writer_open_element(writer
, mi_lttng_element_snapshots
);
1639 int mi_lttng_snapshot_list_output(struct mi_writer
*writer
,
1640 struct lttng_snapshot_output
*output
)
1644 /* Open element snapshot output */
1645 ret
= mi_lttng_writer_open_element(writer
,
1646 mi_lttng_element_command_snapshot
);
1651 /* ID of the snapshot output */
1652 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1653 mi_lttng_element_id
, output
->id
);
1658 /* Name of the output */
1659 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1665 /* Destination of the output (ctrl_url)*/
1666 ret
= mi_lttng_writer_write_element_string(writer
,
1667 mi_lttng_element_snapshot_ctrl_url
, output
->ctrl_url
);
1672 /* Destination of the output (data_url) */
1673 ret
= mi_lttng_writer_write_element_string(writer
,
1674 mi_lttng_element_snapshot_data_url
, output
->data_url
);
1679 /* total size of all stream combined */
1680 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1681 mi_lttng_element_snapshot_max_size
, output
->max_size
);
1686 /* Close snapshot output element */
1687 ret
= mi_lttng_writer_close_element(writer
);
1694 int mi_lttng_snapshot_del_output(struct mi_writer
*writer
, int id
,
1695 const char *name
, const char *current_session_name
)
1699 /* Open element del_snapshot */
1700 ret
= mi_lttng_writer_open_element(writer
,
1701 mi_lttng_element_command_snapshot
);
1707 if (id
!= UINT32_MAX
) {
1708 /* "Snapshot output "id" successfully deleted
1709 * for "current_session_name"
1710 * ID of the snapshot output
1712 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1713 mi_lttng_element_id
, id
);
1718 /* "Snapshot output "name" successfully deleted
1719 * for session "current_session_name"
1720 * Name of the output
1722 ret
= mi_lttng_writer_write_element_string(writer
, config_element_name
,
1729 /* Snapshot was deleted for session "current_session_name"*/
1730 ret
= mi_lttng_writer_write_element_string(writer
,
1731 mi_lttng_element_snapshot_session_name
,
1732 current_session_name
);
1737 /* Close snapshot element */
1738 ret
= mi_lttng_writer_close_element(writer
);
1745 int mi_lttng_snapshot_add_output(struct mi_writer
*writer
,
1746 const char *current_session_name
, const char *n_ptr
,
1747 struct lttng_snapshot_output
*output
)
1751 /* Open element snapshot */
1752 ret
= mi_lttng_writer_open_element(writer
,
1753 mi_lttng_element_command_snapshot
);
1758 /* Snapshot output id */
1759 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1760 mi_lttng_element_id
, output
->id
);
1765 /* Snapshot output names */
1766 ret
= mi_lttng_writer_write_element_string(writer
,
1767 config_element_name
, n_ptr
);
1772 /* Destination of the output (ctrl_url)*/
1773 ret
= mi_lttng_writer_write_element_string(writer
,
1774 mi_lttng_element_snapshot_ctrl_url
, output
->ctrl_url
);
1779 /* Snapshot added for session "current_session_name"*/
1780 ret
= mi_lttng_writer_write_element_string(writer
,
1781 mi_lttng_element_snapshot_session_name
, current_session_name
);
1786 /* total size of all stream combined */
1787 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1788 mi_lttng_element_snapshot_max_size
, output
->max_size
);
1793 /* Close snapshot element */
1794 ret
= mi_lttng_writer_close_element(writer
);
1801 int mi_lttng_snapshot_record(struct mi_writer
*writer
,
1802 const char *current_session_name
, const char *url
,
1803 const char *cmdline_ctrl_url
, const char *cmdline_data_url
)
1807 /* Open element snapshot */
1808 ret
= mi_lttng_writer_open_element(writer
,
1809 mi_lttng_element_command_snapshot
);
1815 * If a valid an URL was given, serialize it,
1816 * else take the command line data and ctrl urls*/
1818 /* Destination of the output (ctrl_url)*/
1819 ret
= mi_lttng_writer_write_element_string(writer
,
1820 mi_lttng_element_snapshot_ctrl_url
, url
);
1824 } else if (cmdline_ctrl_url
) {
1825 /* Destination of the output (ctrl_url)*/
1826 ret
= mi_lttng_writer_write_element_string(writer
,
1827 mi_lttng_element_snapshot_ctrl_url
, cmdline_ctrl_url
);
1832 /* Destination of the output (data_url) */
1833 ret
= mi_lttng_writer_write_element_string(writer
,
1834 mi_lttng_element_snapshot_data_url
, cmdline_data_url
);
1840 /* Close record_snapshot element */
1841 ret
= mi_lttng_writer_close_element(writer
);
1848 int mi_lttng_rotation_schedule(struct mi_writer
*writer
,
1849 const struct lttng_rotation_schedule
*schedule
)
1852 enum lttng_rotation_status status
;
1854 const char *element_name
;
1855 const char *value_name
;
1856 bool empty_schedule
= false;
1858 switch (lttng_rotation_schedule_get_type(schedule
)) {
1859 case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC
:
1860 status
= lttng_rotation_schedule_periodic_get_period(schedule
,
1862 element_name
= mi_lttng_element_rotation_schedule_periodic
;
1863 value_name
= mi_lttng_element_rotation_schedule_periodic_time_us
;
1865 case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD
:
1866 status
= lttng_rotation_schedule_size_threshold_get_threshold(
1868 element_name
= mi_lttng_element_rotation_schedule_size_threshold
;
1869 value_name
= mi_lttng_element_rotation_schedule_size_threshold_bytes
;
1876 if (status
!= LTTNG_ROTATION_STATUS_OK
) {
1877 if (status
== LTTNG_ROTATION_STATUS_UNAVAILABLE
) {
1878 empty_schedule
= true;
1885 ret
= mi_lttng_writer_open_element(writer
, element_name
);
1890 if (!empty_schedule
) {
1891 ret
= mi_lttng_writer_write_element_unsigned_int(writer
,
1898 /* Close schedule descriptor element. */
1899 ret
= mi_lttng_writer_close_element(writer
);
1908 int mi_lttng_rotation_schedule_result(struct mi_writer
*writer
,
1909 const struct lttng_rotation_schedule
*schedule
,
1914 ret
= mi_lttng_writer_open_element(writer
,
1915 mi_lttng_element_rotation_schedule_result
);
1920 ret
= mi_lttng_writer_open_element(writer
,
1921 mi_lttng_element_rotation_schedule
);
1926 ret
= mi_lttng_rotation_schedule(writer
, schedule
);
1931 /* Close rotation_schedule element */
1932 ret
= mi_lttng_writer_close_element(writer
);
1937 ret
= mi_lttng_writer_write_element_bool(writer
,
1938 mi_lttng_element_command_success
, success
);
1943 /* Close rotation_schedule_result element */
1944 ret
= mi_lttng_writer_close_element(writer
);