| 1 | /* |
| 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> |
| 5 | * |
| 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. |
| 9 | * |
| 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 |
| 13 | * more details. |
| 14 | * |
| 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. |
| 18 | */ |
| 19 | |
| 20 | #define _LGPL_SOURCE |
| 21 | #include <common/config/session-config.h> |
| 22 | #include <common/defaults.h> |
| 23 | #include <lttng/snapshot-internal.h> |
| 24 | #include <lttng/channel.h> |
| 25 | #include "mi-lttng.h" |
| 26 | |
| 27 | #include <assert.h> |
| 28 | |
| 29 | #define MI_SCHEMA_MAJOR_VERSION 3 |
| 30 | #define MI_SCHEMA_MINOR_VERSION 0 |
| 31 | |
| 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); |
| 45 | |
| 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"; |
| 80 | |
| 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"; |
| 91 | |
| 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"; |
| 95 | |
| 96 | /* String related to lttng_event_perf_counter_ctx */ |
| 97 | const char * const mi_lttng_element_perf_counter_context = "perf"; |
| 98 | |
| 99 | /* Strings related to pid */ |
| 100 | const char * const mi_lttng_element_pid_id = "id"; |
| 101 | |
| 102 | /* Strings related to save command */ |
| 103 | const char * const mi_lttng_element_save = "save"; |
| 104 | |
| 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"; |
| 109 | |
| 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"; |
| 120 | |
| 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"; |
| 138 | |
| 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"; |
| 149 | |
| 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"; |
| 159 | |
| 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"; |
| 167 | |
| 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"; |
| 173 | |
| 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"; |
| 181 | |
| 182 | /* String related to track/untrack command */ |
| 183 | const char * const mi_lttng_element_track_untrack_all_wildcard = "*"; |
| 184 | |
| 185 | LTTNG_HIDDEN const char * const mi_lttng_element_session_name = "session_name"; |
| 186 | |
| 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"; |
| 192 | |
| 193 | /* Deprecated symbols preserved for ABI compatibility. */ |
| 194 | const char * const mi_lttng_context_type_perf_counter; |
| 195 | const char * const mi_lttng_context_type_perf_cpu_counter; |
| 196 | const char * const mi_lttng_context_type_perf_thread_counter; |
| 197 | const char * const mi_lttng_element_track_untrack_pid_target; |
| 198 | const char * const mi_lttng_element_track_untrack_targets; |
| 199 | const char * const mi_lttng_element_calibrate; |
| 200 | const char * const mi_lttng_element_calibrate_function; |
| 201 | const char * const mi_lttng_element_command_calibrate; |
| 202 | |
| 203 | /* This is a merge of jul loglevel and regular loglevel |
| 204 | * Those should never overlap by definition |
| 205 | * (see struct lttng_event loglevel) |
| 206 | */ |
| 207 | LTTNG_HIDDEN |
| 208 | const char *mi_lttng_loglevel_string(int value, enum lttng_domain_type domain) |
| 209 | { |
| 210 | switch (domain) { |
| 211 | case LTTNG_DOMAIN_KERNEL: |
| 212 | case LTTNG_DOMAIN_UST: |
| 213 | switch (value) { |
| 214 | case -1: |
| 215 | return mi_lttng_element_empty; |
| 216 | case LTTNG_LOGLEVEL_EMERG: |
| 217 | return mi_lttng_loglevel_str_emerg; |
| 218 | case LTTNG_LOGLEVEL_ALERT: |
| 219 | return mi_lttng_loglevel_str_alert; |
| 220 | case LTTNG_LOGLEVEL_CRIT: |
| 221 | return mi_lttng_loglevel_str_crit; |
| 222 | case LTTNG_LOGLEVEL_ERR: |
| 223 | return mi_lttng_loglevel_str_err; |
| 224 | case LTTNG_LOGLEVEL_WARNING: |
| 225 | return mi_lttng_loglevel_str_warning; |
| 226 | case LTTNG_LOGLEVEL_NOTICE: |
| 227 | return mi_lttng_loglevel_str_notice; |
| 228 | case LTTNG_LOGLEVEL_INFO: |
| 229 | return mi_lttng_loglevel_str_info; |
| 230 | case LTTNG_LOGLEVEL_DEBUG_SYSTEM: |
| 231 | return mi_lttng_loglevel_str_debug_system; |
| 232 | case LTTNG_LOGLEVEL_DEBUG_PROGRAM: |
| 233 | return mi_lttng_loglevel_str_debug_program; |
| 234 | case LTTNG_LOGLEVEL_DEBUG_PROCESS: |
| 235 | return mi_lttng_loglevel_str_debug_process; |
| 236 | case LTTNG_LOGLEVEL_DEBUG_MODULE: |
| 237 | return mi_lttng_loglevel_str_debug_module; |
| 238 | case LTTNG_LOGLEVEL_DEBUG_UNIT: |
| 239 | return mi_lttng_loglevel_str_debug_unit; |
| 240 | case LTTNG_LOGLEVEL_DEBUG_FUNCTION: |
| 241 | return mi_lttng_loglevel_str_debug_function; |
| 242 | case LTTNG_LOGLEVEL_DEBUG_LINE: |
| 243 | return mi_lttng_loglevel_str_debug_line; |
| 244 | case LTTNG_LOGLEVEL_DEBUG: |
| 245 | return mi_lttng_loglevel_str_debug; |
| 246 | default: |
| 247 | return mi_lttng_loglevel_str_unknown; |
| 248 | } |
| 249 | break; |
| 250 | case LTTNG_DOMAIN_LOG4J: |
| 251 | switch (value) { |
| 252 | case -1: |
| 253 | return mi_lttng_element_empty; |
| 254 | case LTTNG_LOGLEVEL_LOG4J_OFF: |
| 255 | return mi_lttng_loglevel_str_log4j_off; |
| 256 | case LTTNG_LOGLEVEL_LOG4J_FATAL: |
| 257 | return mi_lttng_loglevel_str_log4j_fatal; |
| 258 | case LTTNG_LOGLEVEL_LOG4J_ERROR: |
| 259 | return mi_lttng_loglevel_str_log4j_error; |
| 260 | case LTTNG_LOGLEVEL_LOG4J_WARN: |
| 261 | return mi_lttng_loglevel_str_log4j_warn; |
| 262 | case LTTNG_LOGLEVEL_LOG4J_INFO: |
| 263 | return mi_lttng_loglevel_str_log4j_info; |
| 264 | case LTTNG_LOGLEVEL_LOG4J_DEBUG: |
| 265 | return mi_lttng_loglevel_str_log4j_debug; |
| 266 | case LTTNG_LOGLEVEL_LOG4J_TRACE: |
| 267 | return mi_lttng_loglevel_str_log4j_trace; |
| 268 | case LTTNG_LOGLEVEL_LOG4J_ALL: |
| 269 | return mi_lttng_loglevel_str_log4j_all; |
| 270 | default: |
| 271 | return mi_lttng_loglevel_str_unknown; |
| 272 | } |
| 273 | break; |
| 274 | case LTTNG_DOMAIN_JUL: |
| 275 | switch (value) { |
| 276 | case -1: |
| 277 | return mi_lttng_element_empty; |
| 278 | case LTTNG_LOGLEVEL_JUL_OFF: |
| 279 | return mi_lttng_loglevel_str_jul_off; |
| 280 | case LTTNG_LOGLEVEL_JUL_SEVERE: |
| 281 | return mi_lttng_loglevel_str_jul_severe; |
| 282 | case LTTNG_LOGLEVEL_JUL_WARNING: |
| 283 | return mi_lttng_loglevel_str_jul_warning; |
| 284 | case LTTNG_LOGLEVEL_JUL_INFO: |
| 285 | return mi_lttng_loglevel_str_jul_info; |
| 286 | case LTTNG_LOGLEVEL_JUL_CONFIG: |
| 287 | return mi_lttng_loglevel_str_jul_config; |
| 288 | case LTTNG_LOGLEVEL_JUL_FINE: |
| 289 | return mi_lttng_loglevel_str_jul_fine; |
| 290 | case LTTNG_LOGLEVEL_JUL_FINER: |
| 291 | return mi_lttng_loglevel_str_jul_finer; |
| 292 | case LTTNG_LOGLEVEL_JUL_FINEST: |
| 293 | return mi_lttng_loglevel_str_jul_finest; |
| 294 | case LTTNG_LOGLEVEL_JUL_ALL: |
| 295 | return mi_lttng_loglevel_str_jul_all; |
| 296 | default: |
| 297 | return mi_lttng_loglevel_str_unknown; |
| 298 | } |
| 299 | break; |
| 300 | case LTTNG_DOMAIN_PYTHON: |
| 301 | switch (value) { |
| 302 | case LTTNG_LOGLEVEL_PYTHON_CRITICAL: |
| 303 | return mi_lttng_loglevel_str_python_critical; |
| 304 | case LTTNG_LOGLEVEL_PYTHON_ERROR: |
| 305 | return mi_lttng_loglevel_str_python_error; |
| 306 | case LTTNG_LOGLEVEL_PYTHON_WARNING: |
| 307 | return mi_lttng_loglevel_str_python_warning; |
| 308 | case LTTNG_LOGLEVEL_PYTHON_INFO: |
| 309 | return mi_lttng_loglevel_str_python_info; |
| 310 | case LTTNG_LOGLEVEL_PYTHON_DEBUG: |
| 311 | return mi_lttng_loglevel_str_python_debug; |
| 312 | case LTTNG_LOGLEVEL_PYTHON_NOTSET: |
| 313 | return mi_lttng_loglevel_str_python_notset; |
| 314 | default: |
| 315 | return mi_lttng_loglevel_str_unknown; |
| 316 | } |
| 317 | break; |
| 318 | default: |
| 319 | return mi_lttng_loglevel_str_unknown; |
| 320 | } |
| 321 | } |
| 322 | |
| 323 | LTTNG_HIDDEN |
| 324 | const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value) |
| 325 | { |
| 326 | switch (value) { |
| 327 | case LTTNG_EVENT_LOGLEVEL_ALL: |
| 328 | return mi_lttng_loglevel_type_all; |
| 329 | case LTTNG_EVENT_LOGLEVEL_RANGE: |
| 330 | return mi_lttng_loglevel_type_range; |
| 331 | case LTTNG_EVENT_LOGLEVEL_SINGLE: |
| 332 | return mi_lttng_loglevel_type_single; |
| 333 | default: |
| 334 | return mi_lttng_loglevel_type_unknown; |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | LTTNG_HIDDEN |
| 339 | const char *mi_lttng_eventtype_string(enum lttng_event_type value) |
| 340 | { |
| 341 | switch (value) { |
| 342 | case LTTNG_EVENT_ALL: |
| 343 | return config_event_type_all; |
| 344 | case LTTNG_EVENT_TRACEPOINT: |
| 345 | return config_event_type_tracepoint; |
| 346 | case LTTNG_EVENT_PROBE: |
| 347 | return config_event_type_probe; |
| 348 | case LTTNG_EVENT_FUNCTION: |
| 349 | return config_event_type_function; |
| 350 | case LTTNG_EVENT_FUNCTION_ENTRY: |
| 351 | return config_event_type_function_entry; |
| 352 | case LTTNG_EVENT_SYSCALL: |
| 353 | return config_event_type_syscall; |
| 354 | case LTTNG_EVENT_NOOP: |
| 355 | return config_event_type_noop; |
| 356 | default: |
| 357 | return mi_lttng_element_empty; |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | static |
| 362 | const char *mi_lttng_event_contexttype_string(enum lttng_event_context_type val) |
| 363 | { |
| 364 | switch (val) { |
| 365 | case LTTNG_EVENT_CONTEXT_PID: |
| 366 | return config_event_context_pid; |
| 367 | case LTTNG_EVENT_CONTEXT_PROCNAME: |
| 368 | return config_event_context_procname; |
| 369 | case LTTNG_EVENT_CONTEXT_PRIO: |
| 370 | return config_event_context_prio; |
| 371 | case LTTNG_EVENT_CONTEXT_NICE: |
| 372 | return config_event_context_nice; |
| 373 | case LTTNG_EVENT_CONTEXT_VPID: |
| 374 | return config_event_context_vpid; |
| 375 | case LTTNG_EVENT_CONTEXT_TID: |
| 376 | return config_event_context_tid; |
| 377 | case LTTNG_EVENT_CONTEXT_VTID: |
| 378 | return config_event_context_vtid; |
| 379 | case LTTNG_EVENT_CONTEXT_PPID: |
| 380 | return config_event_context_ppid; |
| 381 | case LTTNG_EVENT_CONTEXT_VPPID: |
| 382 | return config_event_context_vppid; |
| 383 | case LTTNG_EVENT_CONTEXT_PTHREAD_ID: |
| 384 | return config_event_context_pthread_id; |
| 385 | case LTTNG_EVENT_CONTEXT_HOSTNAME: |
| 386 | return config_event_context_hostname; |
| 387 | case LTTNG_EVENT_CONTEXT_IP: |
| 388 | return config_event_context_ip; |
| 389 | case LTTNG_EVENT_CONTEXT_INTERRUPTIBLE: |
| 390 | return config_event_context_interruptible; |
| 391 | case LTTNG_EVENT_CONTEXT_PREEMPTIBLE: |
| 392 | return config_event_context_preemptible; |
| 393 | case LTTNG_EVENT_CONTEXT_NEED_RESCHEDULE: |
| 394 | return config_event_context_need_reschedule; |
| 395 | case LTTNG_EVENT_CONTEXT_MIGRATABLE: |
| 396 | return config_event_context_migratable; |
| 397 | default: |
| 398 | return NULL; |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | LTTNG_HIDDEN |
| 403 | const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type val) |
| 404 | { |
| 405 | switch (val) { |
| 406 | case(LTTNG_EVENT_FIELD_INTEGER): |
| 407 | return mi_lttng_element_type_integer; |
| 408 | case(LTTNG_EVENT_FIELD_ENUM): |
| 409 | return mi_lttng_element_type_enum; |
| 410 | case(LTTNG_EVENT_FIELD_FLOAT): |
| 411 | return mi_lttng_element_type_float; |
| 412 | case(LTTNG_EVENT_FIELD_STRING): |
| 413 | return mi_lttng_element_type_string; |
| 414 | default: |
| 415 | return mi_lttng_element_type_other; |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | LTTNG_HIDDEN |
| 420 | const char *mi_lttng_domaintype_string(enum lttng_domain_type value) |
| 421 | { |
| 422 | /* Note: This is a *duplicate* of get_domain_str from bin/lttng/utils.c */ |
| 423 | switch (value) { |
| 424 | case LTTNG_DOMAIN_KERNEL: |
| 425 | return config_domain_type_kernel; |
| 426 | case LTTNG_DOMAIN_UST: |
| 427 | return config_domain_type_ust; |
| 428 | case LTTNG_DOMAIN_JUL: |
| 429 | return config_domain_type_jul; |
| 430 | case LTTNG_DOMAIN_LOG4J: |
| 431 | return config_domain_type_log4j; |
| 432 | case LTTNG_DOMAIN_PYTHON: |
| 433 | return config_domain_type_python; |
| 434 | default: |
| 435 | /* Should not have an unknown domain */ |
| 436 | assert(0); |
| 437 | return NULL; |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | LTTNG_HIDDEN |
| 442 | const char *mi_lttng_buffertype_string(enum lttng_buffer_type value) |
| 443 | { |
| 444 | switch (value) { |
| 445 | case LTTNG_BUFFER_PER_PID: |
| 446 | return config_buffer_type_per_pid; |
| 447 | case LTTNG_BUFFER_PER_UID: |
| 448 | return config_buffer_type_per_uid; |
| 449 | case LTTNG_BUFFER_GLOBAL: |
| 450 | return config_buffer_type_global; |
| 451 | default: |
| 452 | /* Should not have an unknow buffer type */ |
| 453 | assert(0); |
| 454 | return NULL; |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | LTTNG_HIDDEN |
| 459 | struct mi_writer *mi_lttng_writer_create(int fd_output, int mi_output_type) |
| 460 | { |
| 461 | struct mi_writer *mi_writer; |
| 462 | |
| 463 | mi_writer = zmalloc(sizeof(struct mi_writer)); |
| 464 | if (!mi_writer) { |
| 465 | PERROR("zmalloc mi_writer_create"); |
| 466 | goto end; |
| 467 | } |
| 468 | if (mi_output_type == LTTNG_MI_XML) { |
| 469 | mi_writer->writer = config_writer_create(fd_output, 0); |
| 470 | if (!mi_writer->writer) { |
| 471 | goto err_destroy; |
| 472 | } |
| 473 | mi_writer->type = LTTNG_MI_XML; |
| 474 | } else { |
| 475 | goto err_destroy; |
| 476 | } |
| 477 | |
| 478 | end: |
| 479 | return mi_writer; |
| 480 | |
| 481 | err_destroy: |
| 482 | free(mi_writer); |
| 483 | return NULL; |
| 484 | } |
| 485 | |
| 486 | LTTNG_HIDDEN |
| 487 | int mi_lttng_writer_destroy(struct mi_writer *writer) |
| 488 | { |
| 489 | int ret; |
| 490 | |
| 491 | if (!writer) { |
| 492 | ret = -EINVAL; |
| 493 | goto end; |
| 494 | } |
| 495 | |
| 496 | ret = config_writer_destroy(writer->writer); |
| 497 | if (ret < 0) { |
| 498 | goto end; |
| 499 | } |
| 500 | |
| 501 | free(writer); |
| 502 | end: |
| 503 | return ret; |
| 504 | } |
| 505 | |
| 506 | LTTNG_HIDDEN |
| 507 | int mi_lttng_writer_command_open(struct mi_writer *writer, const char *command) |
| 508 | { |
| 509 | int ret; |
| 510 | |
| 511 | /* |
| 512 | * A command is always the MI's root node, it must declare the current |
| 513 | * namespace and schema URIs and the schema's version. |
| 514 | */ |
| 515 | ret = config_writer_open_element(writer->writer, |
| 516 | mi_lttng_element_command); |
| 517 | if (ret) { |
| 518 | goto end; |
| 519 | } |
| 520 | |
| 521 | ret = config_writer_write_attribute(writer->writer, |
| 522 | mi_lttng_xmlns, DEFAULT_LTTNG_MI_NAMESPACE); |
| 523 | if (ret) { |
| 524 | goto end; |
| 525 | } |
| 526 | |
| 527 | ret = config_writer_write_attribute(writer->writer, |
| 528 | mi_lttng_xmlns_xsi, mi_lttng_w3_schema_uri); |
| 529 | if (ret) { |
| 530 | goto end; |
| 531 | } |
| 532 | |
| 533 | ret = config_writer_write_attribute(writer->writer, |
| 534 | mi_lttng_schema_location, |
| 535 | mi_lttng_schema_location_uri); |
| 536 | if (ret) { |
| 537 | goto end; |
| 538 | } |
| 539 | |
| 540 | ret = config_writer_write_attribute(writer->writer, |
| 541 | mi_lttng_schema_version, |
| 542 | mi_lttng_schema_version_value); |
| 543 | if (ret) { |
| 544 | goto end; |
| 545 | } |
| 546 | |
| 547 | ret = mi_lttng_writer_write_element_string(writer, |
| 548 | mi_lttng_element_command_name, command); |
| 549 | end: |
| 550 | return ret; |
| 551 | } |
| 552 | |
| 553 | LTTNG_HIDDEN |
| 554 | int mi_lttng_writer_command_close(struct mi_writer *writer) |
| 555 | { |
| 556 | return mi_lttng_writer_close_element(writer); |
| 557 | } |
| 558 | |
| 559 | LTTNG_HIDDEN |
| 560 | int mi_lttng_writer_open_element(struct mi_writer *writer, |
| 561 | const char *element_name) |
| 562 | { |
| 563 | return config_writer_open_element(writer->writer, element_name); |
| 564 | } |
| 565 | |
| 566 | LTTNG_HIDDEN |
| 567 | int mi_lttng_writer_close_element(struct mi_writer *writer) |
| 568 | { |
| 569 | return config_writer_close_element(writer->writer); |
| 570 | } |
| 571 | |
| 572 | LTTNG_HIDDEN |
| 573 | int mi_lttng_close_multi_element(struct mi_writer *writer, |
| 574 | unsigned int nb_element) |
| 575 | { |
| 576 | int ret, i; |
| 577 | |
| 578 | if (nb_element < 1) { |
| 579 | ret = 0; |
| 580 | goto end; |
| 581 | } |
| 582 | for (i = 0; i < nb_element; i++) { |
| 583 | ret = mi_lttng_writer_close_element(writer); |
| 584 | if (ret) { |
| 585 | goto end; |
| 586 | } |
| 587 | } |
| 588 | end: |
| 589 | return ret; |
| 590 | } |
| 591 | |
| 592 | LTTNG_HIDDEN |
| 593 | int mi_lttng_writer_write_element_unsigned_int(struct mi_writer *writer, |
| 594 | const char *element_name, uint64_t value) |
| 595 | { |
| 596 | return config_writer_write_element_unsigned_int(writer->writer, |
| 597 | element_name, value); |
| 598 | } |
| 599 | |
| 600 | LTTNG_HIDDEN |
| 601 | int mi_lttng_writer_write_element_signed_int(struct mi_writer *writer, |
| 602 | const char *element_name, int64_t value) |
| 603 | { |
| 604 | return config_writer_write_element_signed_int(writer->writer, |
| 605 | element_name, value); |
| 606 | } |
| 607 | |
| 608 | LTTNG_HIDDEN |
| 609 | int mi_lttng_writer_write_element_bool(struct mi_writer *writer, |
| 610 | const char *element_name, int value) |
| 611 | { |
| 612 | return config_writer_write_element_bool(writer->writer, |
| 613 | element_name, value); |
| 614 | } |
| 615 | |
| 616 | LTTNG_HIDDEN |
| 617 | int mi_lttng_writer_write_element_string(struct mi_writer *writer, |
| 618 | const char *element_name, const char *value) |
| 619 | { |
| 620 | return config_writer_write_element_string(writer->writer, |
| 621 | element_name, value); |
| 622 | } |
| 623 | |
| 624 | LTTNG_HIDDEN |
| 625 | int mi_lttng_version(struct mi_writer *writer, struct mi_lttng_version *version, |
| 626 | const char *lttng_description, const char *lttng_license) |
| 627 | { |
| 628 | int ret; |
| 629 | |
| 630 | /* Open version */ |
| 631 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_version); |
| 632 | if (ret) { |
| 633 | goto end; |
| 634 | } |
| 635 | |
| 636 | /* Version string (contain info like rc etc.) */ |
| 637 | ret = mi_lttng_writer_write_element_string(writer, |
| 638 | mi_lttng_element_version_str, version->version); |
| 639 | if (ret) { |
| 640 | goto end; |
| 641 | } |
| 642 | |
| 643 | /* Major version number */ |
| 644 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 645 | mi_lttng_element_version_major, version->version_major); |
| 646 | if (ret) { |
| 647 | goto end; |
| 648 | } |
| 649 | |
| 650 | /* Minor version number */ |
| 651 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 652 | mi_lttng_element_version_minor, version->version_minor); |
| 653 | if (ret) { |
| 654 | goto end; |
| 655 | } |
| 656 | |
| 657 | /* Commit version number */ |
| 658 | ret = mi_lttng_writer_write_element_string(writer, |
| 659 | mi_lttng_element_version_commit, version->version_commit); |
| 660 | if (ret) { |
| 661 | goto end; |
| 662 | } |
| 663 | |
| 664 | /* Patch number */ |
| 665 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 666 | mi_lttng_element_version_patch_level, version->version_patchlevel); |
| 667 | if (ret) { |
| 668 | goto end; |
| 669 | } |
| 670 | |
| 671 | /* Name of the version */ |
| 672 | ret = mi_lttng_writer_write_element_string(writer, |
| 673 | config_element_name, version->version_name); |
| 674 | if (ret) { |
| 675 | goto end; |
| 676 | } |
| 677 | |
| 678 | /* Description mostly related to beer... */ |
| 679 | ret = mi_lttng_writer_write_element_string(writer, |
| 680 | mi_lttng_element_version_description, lttng_description); |
| 681 | if (ret) { |
| 682 | goto end; |
| 683 | } |
| 684 | |
| 685 | /* url */ |
| 686 | ret = mi_lttng_writer_write_element_string(writer, |
| 687 | mi_lttng_element_version_web, version->package_url); |
| 688 | if (ret) { |
| 689 | goto end; |
| 690 | } |
| 691 | |
| 692 | /* License: free as in free beer...no...*speech* */ |
| 693 | ret = mi_lttng_writer_write_element_string(writer, |
| 694 | mi_lttng_element_version_license, lttng_license); |
| 695 | if (ret) { |
| 696 | goto end; |
| 697 | } |
| 698 | |
| 699 | /* Close version element */ |
| 700 | ret = mi_lttng_writer_close_element(writer); |
| 701 | |
| 702 | end: |
| 703 | return ret; |
| 704 | } |
| 705 | |
| 706 | LTTNG_HIDDEN |
| 707 | int mi_lttng_sessions_open(struct mi_writer *writer) |
| 708 | { |
| 709 | return mi_lttng_writer_open_element(writer, config_element_sessions); |
| 710 | } |
| 711 | |
| 712 | LTTNG_HIDDEN |
| 713 | int mi_lttng_session(struct mi_writer *writer, |
| 714 | struct lttng_session *session, int is_open) |
| 715 | { |
| 716 | int ret; |
| 717 | |
| 718 | assert(session); |
| 719 | |
| 720 | /* Open sessions element */ |
| 721 | ret = mi_lttng_writer_open_element(writer, |
| 722 | config_element_session); |
| 723 | if (ret) { |
| 724 | goto end; |
| 725 | } |
| 726 | |
| 727 | /* Name of the session */ |
| 728 | ret = mi_lttng_writer_write_element_string(writer, |
| 729 | config_element_name, session->name); |
| 730 | if (ret) { |
| 731 | goto end; |
| 732 | } |
| 733 | |
| 734 | /* Path */ |
| 735 | ret = mi_lttng_writer_write_element_string(writer, |
| 736 | config_element_path, session->path); |
| 737 | if (ret) { |
| 738 | goto end; |
| 739 | } |
| 740 | |
| 741 | /* Enabled ? */ |
| 742 | ret = mi_lttng_writer_write_element_bool(writer, |
| 743 | config_element_enabled, session->enabled); |
| 744 | if (ret) { |
| 745 | goto end; |
| 746 | } |
| 747 | |
| 748 | /* Snapshot mode */ |
| 749 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 750 | config_element_snapshot_mode, session->snapshot_mode); |
| 751 | if (ret) { |
| 752 | goto end; |
| 753 | } |
| 754 | |
| 755 | /* Live timer interval in usec */ |
| 756 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 757 | config_element_live_timer_interval, |
| 758 | session->live_timer_interval); |
| 759 | if (ret) { |
| 760 | goto end; |
| 761 | } |
| 762 | |
| 763 | if (!is_open) { |
| 764 | /* Closing session element */ |
| 765 | ret = mi_lttng_writer_close_element(writer); |
| 766 | } |
| 767 | end: |
| 768 | return ret; |
| 769 | |
| 770 | } |
| 771 | |
| 772 | LTTNG_HIDDEN |
| 773 | int mi_lttng_domains_open(struct mi_writer *writer) |
| 774 | { |
| 775 | return mi_lttng_writer_open_element(writer, config_element_domains); |
| 776 | } |
| 777 | |
| 778 | LTTNG_HIDDEN |
| 779 | int mi_lttng_domain(struct mi_writer *writer, |
| 780 | struct lttng_domain *domain, int is_open) |
| 781 | { |
| 782 | int ret = 0; |
| 783 | const char *str_domain; |
| 784 | const char *str_buffer; |
| 785 | |
| 786 | assert(domain); |
| 787 | |
| 788 | /* Open domain element */ |
| 789 | ret = mi_lttng_writer_open_element(writer, config_element_domain); |
| 790 | if (ret) { |
| 791 | goto end; |
| 792 | } |
| 793 | |
| 794 | /* Domain Type */ |
| 795 | str_domain = mi_lttng_domaintype_string(domain->type); |
| 796 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, |
| 797 | str_domain); |
| 798 | if (ret) { |
| 799 | goto end; |
| 800 | } |
| 801 | |
| 802 | /* Buffer Type */ |
| 803 | str_buffer= mi_lttng_buffertype_string(domain->buf_type); |
| 804 | ret = mi_lttng_writer_write_element_string(writer, |
| 805 | config_element_buffer_type, str_buffer); |
| 806 | if (ret) { |
| 807 | goto end; |
| 808 | } |
| 809 | |
| 810 | /* TODO: union attr |
| 811 | * This union is not currently used and was added for |
| 812 | * future ust domain support. |
| 813 | * Date: 25-06-2014 |
| 814 | * */ |
| 815 | |
| 816 | if (!is_open) { |
| 817 | /* Closing domain element */ |
| 818 | ret = mi_lttng_writer_close_element(writer); |
| 819 | } |
| 820 | |
| 821 | end: |
| 822 | return ret; |
| 823 | |
| 824 | } |
| 825 | |
| 826 | LTTNG_HIDDEN |
| 827 | int mi_lttng_channels_open(struct mi_writer *writer) |
| 828 | { |
| 829 | return mi_lttng_writer_open_element(writer, config_element_channels); |
| 830 | } |
| 831 | |
| 832 | LTTNG_HIDDEN |
| 833 | int mi_lttng_channel(struct mi_writer *writer, |
| 834 | struct lttng_channel *channel, int is_open) |
| 835 | { |
| 836 | int ret = 0; |
| 837 | |
| 838 | assert(channel); |
| 839 | |
| 840 | /* Opening channel element */ |
| 841 | ret = mi_lttng_writer_open_element(writer, config_element_channel); |
| 842 | if (ret) { |
| 843 | goto end; |
| 844 | } |
| 845 | |
| 846 | /* Name */ |
| 847 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, |
| 848 | channel->name); |
| 849 | if (ret) { |
| 850 | goto end; |
| 851 | } |
| 852 | |
| 853 | /* Enabled ? */ |
| 854 | ret = mi_lttng_writer_write_element_bool(writer, |
| 855 | config_element_enabled, channel->enabled); |
| 856 | if (ret) { |
| 857 | goto end; |
| 858 | } |
| 859 | |
| 860 | /* Attribute */ |
| 861 | ret = mi_lttng_channel_attr(writer, &channel->attr); |
| 862 | if (ret) { |
| 863 | goto end; |
| 864 | } |
| 865 | |
| 866 | if (!is_open) { |
| 867 | /* Closing channel element */ |
| 868 | ret = mi_lttng_writer_close_element(writer); |
| 869 | if (ret) { |
| 870 | goto end; |
| 871 | } |
| 872 | } |
| 873 | end: |
| 874 | return ret; |
| 875 | } |
| 876 | |
| 877 | LTTNG_HIDDEN |
| 878 | int mi_lttng_channel_attr(struct mi_writer *writer, |
| 879 | struct lttng_channel_attr *attr) |
| 880 | { |
| 881 | int ret = 0; |
| 882 | struct lttng_channel *chan = caa_container_of(attr, |
| 883 | struct lttng_channel, attr); |
| 884 | uint64_t discarded_events, lost_packets, monitor_timer_interval; |
| 885 | int64_t blocking_timeout; |
| 886 | |
| 887 | assert(attr); |
| 888 | |
| 889 | ret = lttng_channel_get_discarded_event_count(chan, &discarded_events); |
| 890 | if (ret) { |
| 891 | goto end; |
| 892 | } |
| 893 | |
| 894 | ret = lttng_channel_get_lost_packet_count(chan, &lost_packets); |
| 895 | if (ret) { |
| 896 | goto end; |
| 897 | } |
| 898 | |
| 899 | ret = lttng_channel_get_monitor_timer_interval(chan, |
| 900 | &monitor_timer_interval); |
| 901 | if (ret) { |
| 902 | goto end; |
| 903 | } |
| 904 | |
| 905 | ret = lttng_channel_get_blocking_timeout(chan, |
| 906 | &blocking_timeout); |
| 907 | if (ret) { |
| 908 | goto end; |
| 909 | } |
| 910 | |
| 911 | /* Opening Attributes */ |
| 912 | ret = mi_lttng_writer_open_element(writer, config_element_attributes); |
| 913 | if (ret) { |
| 914 | goto end; |
| 915 | } |
| 916 | |
| 917 | /* Overwrite */ |
| 918 | ret = mi_lttng_writer_write_element_string(writer, |
| 919 | config_element_overwrite_mode, |
| 920 | attr->overwrite ? config_overwrite_mode_overwrite : |
| 921 | config_overwrite_mode_discard); |
| 922 | if (ret) { |
| 923 | goto end; |
| 924 | } |
| 925 | |
| 926 | /* Sub buffer size in byte */ |
| 927 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 928 | config_element_subbuf_size, attr->subbuf_size); |
| 929 | if (ret) { |
| 930 | goto end; |
| 931 | } |
| 932 | |
| 933 | /* Number of subbuffer (power of two) */ |
| 934 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 935 | config_element_num_subbuf, |
| 936 | attr->num_subbuf); |
| 937 | if (ret) { |
| 938 | goto end; |
| 939 | } |
| 940 | |
| 941 | /* Switch timer interval in usec */ |
| 942 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 943 | config_element_switch_timer_interval, |
| 944 | attr->switch_timer_interval); |
| 945 | if (ret) { |
| 946 | goto end; |
| 947 | } |
| 948 | |
| 949 | /* Read timer interval in usec */ |
| 950 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 951 | config_element_read_timer_interval, |
| 952 | attr->read_timer_interval); |
| 953 | if (ret) { |
| 954 | goto end; |
| 955 | } |
| 956 | |
| 957 | /* Monitor timer interval in usec */ |
| 958 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 959 | config_element_monitor_timer_interval, |
| 960 | monitor_timer_interval); |
| 961 | if (ret) { |
| 962 | goto end; |
| 963 | } |
| 964 | |
| 965 | /* Retry timeout in usec */ |
| 966 | ret = mi_lttng_writer_write_element_signed_int(writer, |
| 967 | config_element_blocking_timeout, |
| 968 | blocking_timeout); |
| 969 | if (ret) { |
| 970 | goto end; |
| 971 | } |
| 972 | |
| 973 | /* Event output */ |
| 974 | ret = mi_lttng_writer_write_element_string(writer, |
| 975 | config_element_output_type, |
| 976 | attr->output == LTTNG_EVENT_SPLICE ? |
| 977 | config_output_type_splice : config_output_type_mmap); |
| 978 | if (ret) { |
| 979 | goto end; |
| 980 | } |
| 981 | |
| 982 | /* Tracefile size in bytes */ |
| 983 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 984 | config_element_tracefile_size, attr->tracefile_size); |
| 985 | if (ret) { |
| 986 | goto end; |
| 987 | } |
| 988 | |
| 989 | /* Count of tracefiles */ |
| 990 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 991 | config_element_tracefile_count, |
| 992 | attr->tracefile_count); |
| 993 | if (ret) { |
| 994 | goto end; |
| 995 | } |
| 996 | |
| 997 | /* Live timer interval in usec*/ |
| 998 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 999 | config_element_live_timer_interval, |
| 1000 | attr->live_timer_interval); |
| 1001 | if (ret) { |
| 1002 | goto end; |
| 1003 | } |
| 1004 | |
| 1005 | /* Discarded events */ |
| 1006 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1007 | config_element_discarded_events, |
| 1008 | discarded_events); |
| 1009 | if (ret) { |
| 1010 | goto end; |
| 1011 | } |
| 1012 | |
| 1013 | /* Lost packets */ |
| 1014 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1015 | config_element_lost_packets, |
| 1016 | lost_packets); |
| 1017 | if (ret) { |
| 1018 | goto end; |
| 1019 | } |
| 1020 | |
| 1021 | /* Closing attributes */ |
| 1022 | ret = mi_lttng_writer_close_element(writer); |
| 1023 | if (ret) { |
| 1024 | goto end; |
| 1025 | } |
| 1026 | end: |
| 1027 | return ret; |
| 1028 | |
| 1029 | } |
| 1030 | |
| 1031 | LTTNG_HIDDEN |
| 1032 | int mi_lttng_event_common_attributes(struct mi_writer *writer, |
| 1033 | struct lttng_event *event) |
| 1034 | { |
| 1035 | int ret; |
| 1036 | const char *filter_expression; |
| 1037 | |
| 1038 | /* Open event element */ |
| 1039 | ret = mi_lttng_writer_open_element(writer, config_element_event); |
| 1040 | if (ret) { |
| 1041 | goto end; |
| 1042 | } |
| 1043 | |
| 1044 | /* Event name */ |
| 1045 | ret = mi_lttng_writer_write_element_string(writer, |
| 1046 | config_element_name, event->name); |
| 1047 | if (ret) { |
| 1048 | goto end; |
| 1049 | } |
| 1050 | |
| 1051 | /* Event type */ |
| 1052 | ret = mi_lttng_writer_write_element_string(writer, |
| 1053 | config_element_type, mi_lttng_eventtype_string(event->type)); |
| 1054 | if (ret) { |
| 1055 | goto end; |
| 1056 | } |
| 1057 | |
| 1058 | /* Is event enabled */ |
| 1059 | ret = mi_lttng_writer_write_element_bool(writer, |
| 1060 | config_element_enabled, event->enabled); |
| 1061 | if (ret) { |
| 1062 | goto end; |
| 1063 | } |
| 1064 | |
| 1065 | /* Event filter expression */ |
| 1066 | ret = lttng_event_get_filter_expression(event, &filter_expression); |
| 1067 | if (ret) { |
| 1068 | goto end; |
| 1069 | } |
| 1070 | |
| 1071 | if (filter_expression) { |
| 1072 | ret = mi_lttng_writer_write_element_string(writer, |
| 1073 | config_element_filter_expression, |
| 1074 | filter_expression); |
| 1075 | if (ret) { |
| 1076 | goto end; |
| 1077 | } |
| 1078 | } |
| 1079 | |
| 1080 | end: |
| 1081 | return ret; |
| 1082 | } |
| 1083 | |
| 1084 | static int write_event_exclusions(struct mi_writer *writer, |
| 1085 | struct lttng_event *event) |
| 1086 | { |
| 1087 | int i; |
| 1088 | int ret; |
| 1089 | int exclusion_count; |
| 1090 | |
| 1091 | /* Open event exclusions */ |
| 1092 | ret = mi_lttng_writer_open_element(writer, config_element_exclusions); |
| 1093 | if (ret) { |
| 1094 | goto end; |
| 1095 | } |
| 1096 | |
| 1097 | exclusion_count = lttng_event_get_exclusion_name_count(event); |
| 1098 | if (exclusion_count < 0) { |
| 1099 | ret = exclusion_count; |
| 1100 | goto end; |
| 1101 | } |
| 1102 | |
| 1103 | for (i = 0; i < exclusion_count; i++) { |
| 1104 | const char *name; |
| 1105 | |
| 1106 | ret = lttng_event_get_exclusion_name(event, i, &name); |
| 1107 | if (ret) { |
| 1108 | /* Close exclusions */ |
| 1109 | mi_lttng_writer_close_element(writer); |
| 1110 | goto end; |
| 1111 | } |
| 1112 | |
| 1113 | ret = mi_lttng_writer_write_element_string(writer, |
| 1114 | config_element_exclusion, name); |
| 1115 | if (ret) { |
| 1116 | /* Close exclusions */ |
| 1117 | mi_lttng_writer_close_element(writer); |
| 1118 | goto end; |
| 1119 | } |
| 1120 | } |
| 1121 | |
| 1122 | /* Close exclusions */ |
| 1123 | ret = mi_lttng_writer_close_element(writer); |
| 1124 | |
| 1125 | end: |
| 1126 | return ret; |
| 1127 | } |
| 1128 | |
| 1129 | LTTNG_HIDDEN |
| 1130 | int mi_lttng_event_tracepoint_loglevel(struct mi_writer *writer, |
| 1131 | struct lttng_event *event, enum lttng_domain_type domain) |
| 1132 | { |
| 1133 | int ret; |
| 1134 | |
| 1135 | /* Event loglevel */ |
| 1136 | ret = mi_lttng_writer_write_element_string(writer, |
| 1137 | config_element_loglevel, |
| 1138 | mi_lttng_loglevel_string(event->loglevel, domain)); |
| 1139 | if (ret) { |
| 1140 | goto end; |
| 1141 | } |
| 1142 | |
| 1143 | /* Log level type */ |
| 1144 | ret = mi_lttng_writer_write_element_string(writer, |
| 1145 | config_element_loglevel_type, |
| 1146 | mi_lttng_logleveltype_string(event->loglevel_type)); |
| 1147 | if (ret) { |
| 1148 | goto end; |
| 1149 | } |
| 1150 | |
| 1151 | /* Event exclusions */ |
| 1152 | ret = write_event_exclusions(writer, event); |
| 1153 | |
| 1154 | end: |
| 1155 | return ret; |
| 1156 | } |
| 1157 | |
| 1158 | LTTNG_HIDDEN |
| 1159 | int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer *writer, |
| 1160 | struct lttng_event *event) |
| 1161 | { |
| 1162 | /* event exclusion filter */ |
| 1163 | return write_event_exclusions(writer, event); |
| 1164 | } |
| 1165 | |
| 1166 | LTTNG_HIDDEN |
| 1167 | int mi_lttng_event_function_probe(struct mi_writer *writer, |
| 1168 | struct lttng_event *event) |
| 1169 | { |
| 1170 | int ret; |
| 1171 | |
| 1172 | ret = mi_lttng_writer_open_element(writer, config_element_attributes); |
| 1173 | if (ret) { |
| 1174 | goto end; |
| 1175 | } |
| 1176 | |
| 1177 | ret = mi_lttng_writer_open_element(writer, config_element_probe_attributes); |
| 1178 | if (ret) { |
| 1179 | goto end; |
| 1180 | } |
| 1181 | |
| 1182 | if (event->attr.probe.addr != 0) { |
| 1183 | /* event probe address */ |
| 1184 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1185 | config_element_address, event->attr.probe.addr); |
| 1186 | if (ret) { |
| 1187 | goto end; |
| 1188 | } |
| 1189 | } else { |
| 1190 | /* event probe offset */ |
| 1191 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1192 | config_element_offset, event->attr.probe.offset); |
| 1193 | if (ret) { |
| 1194 | goto end; |
| 1195 | } |
| 1196 | |
| 1197 | /* event probe symbol_name */ |
| 1198 | ret = mi_lttng_writer_write_element_string(writer, |
| 1199 | config_element_symbol_name, event->attr.probe.symbol_name); |
| 1200 | if (ret) { |
| 1201 | goto end; |
| 1202 | } |
| 1203 | } |
| 1204 | |
| 1205 | /* Close probe_attributes and attributes */ |
| 1206 | ret = mi_lttng_close_multi_element(writer, 2); |
| 1207 | end: |
| 1208 | return ret; |
| 1209 | } |
| 1210 | |
| 1211 | LTTNG_HIDDEN |
| 1212 | int mi_lttng_event_function_entry(struct mi_writer *writer, |
| 1213 | struct lttng_event *event) |
| 1214 | { |
| 1215 | int ret; |
| 1216 | |
| 1217 | ret = mi_lttng_writer_open_element(writer, config_element_attributes); |
| 1218 | if (ret) { |
| 1219 | goto end; |
| 1220 | } |
| 1221 | |
| 1222 | ret = mi_lttng_writer_open_element(writer, config_element_probe_attributes); |
| 1223 | if (ret) { |
| 1224 | goto end; |
| 1225 | } |
| 1226 | |
| 1227 | /* event probe symbol_name */ |
| 1228 | ret = mi_lttng_writer_write_element_string(writer, |
| 1229 | config_element_symbol_name, event->attr.ftrace.symbol_name); |
| 1230 | if (ret) { |
| 1231 | goto end; |
| 1232 | } |
| 1233 | |
| 1234 | /* Close function_attributes and attributes */ |
| 1235 | ret = mi_lttng_close_multi_element(writer, 2); |
| 1236 | end: |
| 1237 | return ret; |
| 1238 | } |
| 1239 | |
| 1240 | LTTNG_HIDDEN |
| 1241 | int mi_lttng_events_open(struct mi_writer *writer) |
| 1242 | { |
| 1243 | return mi_lttng_writer_open_element(writer, config_element_events); |
| 1244 | } |
| 1245 | |
| 1246 | LTTNG_HIDDEN |
| 1247 | int mi_lttng_event(struct mi_writer *writer, |
| 1248 | struct lttng_event *event, int is_open, enum lttng_domain_type domain) |
| 1249 | { |
| 1250 | int ret; |
| 1251 | |
| 1252 | ret = mi_lttng_event_common_attributes(writer, event); |
| 1253 | if (ret) { |
| 1254 | goto end; |
| 1255 | } |
| 1256 | |
| 1257 | switch (event->type) { |
| 1258 | case LTTNG_EVENT_TRACEPOINT: |
| 1259 | { |
| 1260 | if (event->loglevel != -1) { |
| 1261 | ret = mi_lttng_event_tracepoint_loglevel(writer, event, domain); |
| 1262 | } else { |
| 1263 | ret = mi_lttng_event_tracepoint_no_loglevel(writer, event); |
| 1264 | } |
| 1265 | break; |
| 1266 | } |
| 1267 | case LTTNG_EVENT_FUNCTION: |
| 1268 | /* Fallthrough */ |
| 1269 | case LTTNG_EVENT_PROBE: |
| 1270 | ret = mi_lttng_event_function_probe(writer, event); |
| 1271 | break; |
| 1272 | case LTTNG_EVENT_FUNCTION_ENTRY: |
| 1273 | ret = mi_lttng_event_function_entry(writer, event); |
| 1274 | break; |
| 1275 | case LTTNG_EVENT_ALL: |
| 1276 | /* Fallthrough */ |
| 1277 | default: |
| 1278 | break; |
| 1279 | } |
| 1280 | |
| 1281 | if (!is_open) { |
| 1282 | ret = mi_lttng_writer_close_element(writer); |
| 1283 | } |
| 1284 | |
| 1285 | end: |
| 1286 | return ret; |
| 1287 | } |
| 1288 | |
| 1289 | LTTNG_HIDDEN |
| 1290 | int mi_lttng_trackers_open(struct mi_writer *writer) |
| 1291 | { |
| 1292 | return mi_lttng_writer_open_element(writer, config_element_trackers); |
| 1293 | } |
| 1294 | |
| 1295 | LTTNG_HIDDEN |
| 1296 | int mi_lttng_pid_tracker_open(struct mi_writer *writer) |
| 1297 | { |
| 1298 | int ret; |
| 1299 | |
| 1300 | /* Open element pid_tracker */ |
| 1301 | ret = mi_lttng_writer_open_element(writer, config_element_pid_tracker); |
| 1302 | if (ret) { |
| 1303 | goto end; |
| 1304 | } |
| 1305 | |
| 1306 | /* Open targets element */ |
| 1307 | ret = mi_lttng_targets_open(writer); |
| 1308 | end: |
| 1309 | return ret; |
| 1310 | } |
| 1311 | |
| 1312 | LTTNG_HIDDEN |
| 1313 | int mi_lttng_pids_open(struct mi_writer *writer) |
| 1314 | { |
| 1315 | return mi_lttng_writer_open_element(writer, config_element_pids); |
| 1316 | } |
| 1317 | |
| 1318 | /* |
| 1319 | * TODO: move the listing of pid for user agent to process semantic on |
| 1320 | * mi api bump. The use of process element break the mi api. |
| 1321 | */ |
| 1322 | LTTNG_HIDDEN |
| 1323 | int mi_lttng_pid(struct mi_writer *writer, pid_t pid , const char *name, |
| 1324 | int is_open) |
| 1325 | { |
| 1326 | int ret; |
| 1327 | |
| 1328 | /* Open pid process */ |
| 1329 | ret = mi_lttng_writer_open_element(writer, config_element_pid); |
| 1330 | if (ret) { |
| 1331 | goto end; |
| 1332 | } |
| 1333 | |
| 1334 | /* Writing pid number */ |
| 1335 | ret = mi_lttng_writer_write_element_signed_int(writer, |
| 1336 | mi_lttng_element_pid_id, (int)pid); |
| 1337 | if (ret) { |
| 1338 | goto end; |
| 1339 | } |
| 1340 | |
| 1341 | /* Writing name of the process */ |
| 1342 | if (name) { |
| 1343 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, |
| 1344 | name); |
| 1345 | if (ret) { |
| 1346 | goto end; |
| 1347 | } |
| 1348 | } |
| 1349 | |
| 1350 | if (!is_open) { |
| 1351 | /* Closing Pid */ |
| 1352 | ret = mi_lttng_writer_close_element(writer); |
| 1353 | } |
| 1354 | |
| 1355 | end: |
| 1356 | return ret; |
| 1357 | } |
| 1358 | |
| 1359 | LTTNG_HIDDEN |
| 1360 | int mi_lttng_targets_open(struct mi_writer *writer) |
| 1361 | { |
| 1362 | return mi_lttng_writer_open_element(writer, |
| 1363 | config_element_targets); |
| 1364 | } |
| 1365 | |
| 1366 | LTTNG_HIDDEN |
| 1367 | int mi_lttng_pid_target(struct mi_writer *writer, pid_t pid, int is_open) |
| 1368 | { |
| 1369 | int ret; |
| 1370 | |
| 1371 | ret = mi_lttng_writer_open_element(writer, |
| 1372 | config_element_target_pid); |
| 1373 | if (ret) { |
| 1374 | goto end; |
| 1375 | } |
| 1376 | |
| 1377 | /* Writing pid number |
| 1378 | * Special case for element all on track untrack command |
| 1379 | * All pid is represented as wildcard * |
| 1380 | */ |
| 1381 | if ((int) pid == -1) { |
| 1382 | ret = mi_lttng_writer_write_element_string(writer, |
| 1383 | config_element_pid, |
| 1384 | mi_lttng_element_track_untrack_all_wildcard); |
| 1385 | } else { |
| 1386 | ret = mi_lttng_writer_write_element_signed_int(writer, |
| 1387 | config_element_pid, (int) pid); |
| 1388 | } |
| 1389 | if (ret) { |
| 1390 | goto end; |
| 1391 | } |
| 1392 | |
| 1393 | if (!is_open) { |
| 1394 | ret = mi_lttng_writer_close_element(writer); |
| 1395 | if (ret) { |
| 1396 | goto end; |
| 1397 | } |
| 1398 | } |
| 1399 | |
| 1400 | end: |
| 1401 | return ret; |
| 1402 | } |
| 1403 | |
| 1404 | LTTNG_HIDDEN |
| 1405 | int mi_lttng_event_fields_open(struct mi_writer *writer) |
| 1406 | { |
| 1407 | return mi_lttng_writer_open_element(writer, mi_lttng_element_event_fields); |
| 1408 | } |
| 1409 | |
| 1410 | LTTNG_HIDDEN |
| 1411 | int mi_lttng_event_field(struct mi_writer *writer, |
| 1412 | struct lttng_event_field *field) |
| 1413 | { |
| 1414 | int ret; |
| 1415 | |
| 1416 | if (!field->field_name[0]) { |
| 1417 | ret = 0; |
| 1418 | goto end; |
| 1419 | } |
| 1420 | |
| 1421 | /* Open field */ |
| 1422 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_event_field); |
| 1423 | if (ret) { |
| 1424 | goto end; |
| 1425 | } |
| 1426 | |
| 1427 | if (!field->field_name[0]) { |
| 1428 | goto close; |
| 1429 | } |
| 1430 | |
| 1431 | /* Name */ |
| 1432 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, |
| 1433 | field->field_name); |
| 1434 | if (ret) { |
| 1435 | goto end; |
| 1436 | } |
| 1437 | |
| 1438 | /* Type */ |
| 1439 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, |
| 1440 | mi_lttng_eventfieldtype_string(field->type)); |
| 1441 | if (ret) { |
| 1442 | goto end; |
| 1443 | } |
| 1444 | |
| 1445 | /* nowrite */ |
| 1446 | ret = mi_lttng_writer_write_element_signed_int(writer, |
| 1447 | mi_lttng_element_nowrite, field->nowrite); |
| 1448 | if (ret) { |
| 1449 | goto end; |
| 1450 | } |
| 1451 | |
| 1452 | close: |
| 1453 | /* Close field element */ |
| 1454 | ret = mi_lttng_writer_close_element(writer); |
| 1455 | |
| 1456 | end: |
| 1457 | return ret; |
| 1458 | } |
| 1459 | |
| 1460 | LTTNG_HIDDEN |
| 1461 | int mi_lttng_perf_counter_context(struct mi_writer *writer, |
| 1462 | struct lttng_event_perf_counter_ctx *perf_context) |
| 1463 | { |
| 1464 | int ret; |
| 1465 | |
| 1466 | /* Open perf_counter_context */ |
| 1467 | ret = mi_lttng_writer_open_element(writer, |
| 1468 | mi_lttng_element_perf_counter_context); |
| 1469 | if (ret) { |
| 1470 | goto end; |
| 1471 | } |
| 1472 | |
| 1473 | /* Type */ |
| 1474 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1475 | config_element_type, perf_context->type); |
| 1476 | if (ret) { |
| 1477 | goto end; |
| 1478 | } |
| 1479 | |
| 1480 | /* Config */ |
| 1481 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1482 | config_element_config, perf_context->config); |
| 1483 | if (ret) { |
| 1484 | goto end; |
| 1485 | } |
| 1486 | |
| 1487 | /* Name of the perf counter */ |
| 1488 | ret = mi_lttng_writer_write_element_string(writer, |
| 1489 | config_element_name, perf_context->name); |
| 1490 | if (ret) { |
| 1491 | goto end; |
| 1492 | } |
| 1493 | |
| 1494 | /* Close perf_counter_context */ |
| 1495 | ret = mi_lttng_writer_close_element(writer); |
| 1496 | end: |
| 1497 | return ret; |
| 1498 | } |
| 1499 | |
| 1500 | static |
| 1501 | int mi_lttng_app_context(struct mi_writer *writer, |
| 1502 | const char *provider_name, const char *ctx_name) |
| 1503 | { |
| 1504 | int ret; |
| 1505 | |
| 1506 | /* Open app */ |
| 1507 | ret = mi_lttng_writer_open_element(writer, |
| 1508 | config_element_context_app); |
| 1509 | if (ret) { |
| 1510 | goto end; |
| 1511 | } |
| 1512 | |
| 1513 | /* provider_name */ |
| 1514 | ret = mi_lttng_writer_write_element_string(writer, |
| 1515 | config_element_context_app_provider_name, |
| 1516 | provider_name); |
| 1517 | if (ret) { |
| 1518 | goto end; |
| 1519 | } |
| 1520 | |
| 1521 | /* ctx_name */ |
| 1522 | ret = mi_lttng_writer_write_element_string(writer, |
| 1523 | config_element_context_app_ctx_name, ctx_name); |
| 1524 | if (ret) { |
| 1525 | goto end; |
| 1526 | } |
| 1527 | |
| 1528 | /* Close app */ |
| 1529 | ret = mi_lttng_writer_close_element(writer); |
| 1530 | end: |
| 1531 | return ret; |
| 1532 | } |
| 1533 | |
| 1534 | LTTNG_HIDDEN |
| 1535 | int mi_lttng_context(struct mi_writer *writer, |
| 1536 | struct lttng_event_context *context, int is_open) |
| 1537 | { |
| 1538 | int ret; |
| 1539 | |
| 1540 | /* Open context */ |
| 1541 | ret = mi_lttng_writer_open_element(writer , config_element_context); |
| 1542 | if (ret) { |
| 1543 | goto end; |
| 1544 | } |
| 1545 | |
| 1546 | /* Special case for PERF_*_COUNTER |
| 1547 | * print the lttng_event_perf_counter_ctx*/ |
| 1548 | switch (context->ctx) { |
| 1549 | case LTTNG_EVENT_CONTEXT_PERF_COUNTER: |
| 1550 | case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER: |
| 1551 | case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER: |
| 1552 | { |
| 1553 | struct lttng_event_perf_counter_ctx *perf_context = |
| 1554 | &context->u.perf_counter; |
| 1555 | ret = mi_lttng_perf_counter_context(writer, perf_context); |
| 1556 | if (ret) { |
| 1557 | goto end; |
| 1558 | } |
| 1559 | break; |
| 1560 | } |
| 1561 | case LTTNG_EVENT_CONTEXT_APP_CONTEXT: |
| 1562 | { |
| 1563 | ret = mi_lttng_app_context(writer, |
| 1564 | context->u.app_ctx.provider_name, |
| 1565 | context->u.app_ctx.ctx_name); |
| 1566 | if (ret) { |
| 1567 | goto end; |
| 1568 | } |
| 1569 | break; |
| 1570 | } |
| 1571 | default: |
| 1572 | { |
| 1573 | const char *type_string = mi_lttng_event_contexttype_string( |
| 1574 | context->ctx); |
| 1575 | if (!type_string) { |
| 1576 | ret = -LTTNG_ERR_INVALID; |
| 1577 | goto end; |
| 1578 | } |
| 1579 | |
| 1580 | /* Print context type */ |
| 1581 | ret = mi_lttng_writer_write_element_string(writer, |
| 1582 | config_element_type, type_string); |
| 1583 | break; |
| 1584 | } |
| 1585 | } |
| 1586 | |
| 1587 | /* Close context */ |
| 1588 | if (!is_open) { |
| 1589 | ret = mi_lttng_writer_close_element(writer); |
| 1590 | } |
| 1591 | |
| 1592 | end: |
| 1593 | return ret; |
| 1594 | } |
| 1595 | |
| 1596 | LTTNG_HIDDEN |
| 1597 | int mi_lttng_snapshot_output_session_name(struct mi_writer *writer, |
| 1598 | const char *session_name) |
| 1599 | { |
| 1600 | int ret; |
| 1601 | |
| 1602 | /* Open session element */ |
| 1603 | ret = mi_lttng_writer_open_element(writer, config_element_session); |
| 1604 | if (ret) { |
| 1605 | goto end; |
| 1606 | } |
| 1607 | |
| 1608 | /* Snapshot output list for current session name */ |
| 1609 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, |
| 1610 | session_name); |
| 1611 | if (ret) { |
| 1612 | goto end; |
| 1613 | } |
| 1614 | |
| 1615 | /* Open element snapshots (sequence one snapshot) */ |
| 1616 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_snapshots); |
| 1617 | if (ret) { |
| 1618 | goto end; |
| 1619 | } |
| 1620 | |
| 1621 | end: |
| 1622 | return ret; |
| 1623 | } |
| 1624 | |
| 1625 | LTTNG_HIDDEN |
| 1626 | int mi_lttng_snapshot_list_output(struct mi_writer *writer, |
| 1627 | struct lttng_snapshot_output *output) |
| 1628 | { |
| 1629 | int ret; |
| 1630 | |
| 1631 | /* Open element snapshot output */ |
| 1632 | ret = mi_lttng_writer_open_element(writer, |
| 1633 | mi_lttng_element_command_snapshot); |
| 1634 | if (ret) { |
| 1635 | goto end; |
| 1636 | } |
| 1637 | |
| 1638 | /* ID of the snapshot output */ |
| 1639 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1640 | mi_lttng_element_id, output->id); |
| 1641 | if (ret) { |
| 1642 | goto end; |
| 1643 | } |
| 1644 | |
| 1645 | /* Name of the output */ |
| 1646 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, |
| 1647 | output->name); |
| 1648 | if (ret) { |
| 1649 | goto end; |
| 1650 | } |
| 1651 | |
| 1652 | /* Destination of the output (ctrl_url)*/ |
| 1653 | ret = mi_lttng_writer_write_element_string(writer, |
| 1654 | mi_lttng_element_snapshot_ctrl_url, output->ctrl_url); |
| 1655 | if (ret) { |
| 1656 | goto end; |
| 1657 | } |
| 1658 | |
| 1659 | /* Destination of the output (data_url) */ |
| 1660 | ret = mi_lttng_writer_write_element_string(writer, |
| 1661 | mi_lttng_element_snapshot_data_url, output->data_url); |
| 1662 | if (ret) { |
| 1663 | goto end; |
| 1664 | } |
| 1665 | |
| 1666 | /* total size of all stream combined */ |
| 1667 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1668 | mi_lttng_element_snapshot_max_size, output->max_size); |
| 1669 | if (ret) { |
| 1670 | goto end; |
| 1671 | } |
| 1672 | |
| 1673 | /* Close snapshot output element */ |
| 1674 | ret = mi_lttng_writer_close_element(writer); |
| 1675 | |
| 1676 | end: |
| 1677 | return ret; |
| 1678 | } |
| 1679 | |
| 1680 | LTTNG_HIDDEN |
| 1681 | int mi_lttng_snapshot_del_output(struct mi_writer *writer, int id, |
| 1682 | const char *name, const char *current_session_name) |
| 1683 | { |
| 1684 | int ret; |
| 1685 | |
| 1686 | /* Open element del_snapshot */ |
| 1687 | ret = mi_lttng_writer_open_element(writer, |
| 1688 | mi_lttng_element_command_snapshot); |
| 1689 | if (ret) { |
| 1690 | goto end; |
| 1691 | } |
| 1692 | |
| 1693 | |
| 1694 | if (id != UINT32_MAX) { |
| 1695 | /* "Snapshot output "id" successfully deleted |
| 1696 | * for "current_session_name" |
| 1697 | * ID of the snapshot output |
| 1698 | */ |
| 1699 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1700 | mi_lttng_element_id, id); |
| 1701 | if (ret) { |
| 1702 | goto end; |
| 1703 | } |
| 1704 | } else { |
| 1705 | /* "Snapshot output "name" successfully deleted |
| 1706 | * for session "current_session_name" |
| 1707 | * Name of the output |
| 1708 | */ |
| 1709 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, |
| 1710 | name); |
| 1711 | if (ret) { |
| 1712 | goto end; |
| 1713 | } |
| 1714 | } |
| 1715 | |
| 1716 | /* Snapshot was deleted for session "current_session_name"*/ |
| 1717 | ret = mi_lttng_writer_write_element_string(writer, |
| 1718 | mi_lttng_element_snapshot_session_name, |
| 1719 | current_session_name); |
| 1720 | if (ret) { |
| 1721 | goto end; |
| 1722 | } |
| 1723 | |
| 1724 | /* Close snapshot element */ |
| 1725 | ret = mi_lttng_writer_close_element(writer); |
| 1726 | |
| 1727 | end: |
| 1728 | return ret; |
| 1729 | } |
| 1730 | |
| 1731 | LTTNG_HIDDEN |
| 1732 | int mi_lttng_snapshot_add_output(struct mi_writer *writer, |
| 1733 | const char *current_session_name, const char *n_ptr, |
| 1734 | struct lttng_snapshot_output *output) |
| 1735 | { |
| 1736 | int ret; |
| 1737 | |
| 1738 | /* Open element snapshot */ |
| 1739 | ret = mi_lttng_writer_open_element(writer, |
| 1740 | mi_lttng_element_command_snapshot); |
| 1741 | if (ret) { |
| 1742 | goto end; |
| 1743 | } |
| 1744 | |
| 1745 | /* Snapshot output id */ |
| 1746 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1747 | mi_lttng_element_id, output->id); |
| 1748 | if (ret) { |
| 1749 | goto end; |
| 1750 | } |
| 1751 | |
| 1752 | /* Snapshot output names */ |
| 1753 | ret = mi_lttng_writer_write_element_string(writer, |
| 1754 | config_element_name, n_ptr); |
| 1755 | if (ret) { |
| 1756 | goto end; |
| 1757 | } |
| 1758 | |
| 1759 | /* Destination of the output (ctrl_url)*/ |
| 1760 | ret = mi_lttng_writer_write_element_string(writer, |
| 1761 | mi_lttng_element_snapshot_ctrl_url, output->ctrl_url); |
| 1762 | if (ret) { |
| 1763 | goto end; |
| 1764 | } |
| 1765 | |
| 1766 | /* Snapshot added for session "current_session_name"*/ |
| 1767 | ret = mi_lttng_writer_write_element_string(writer, |
| 1768 | mi_lttng_element_snapshot_session_name, current_session_name); |
| 1769 | if (ret) { |
| 1770 | goto end; |
| 1771 | } |
| 1772 | |
| 1773 | /* total size of all stream combined */ |
| 1774 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1775 | mi_lttng_element_snapshot_max_size, output->max_size); |
| 1776 | if (ret) { |
| 1777 | goto end; |
| 1778 | } |
| 1779 | |
| 1780 | /* Close snapshot element */ |
| 1781 | ret = mi_lttng_writer_close_element(writer); |
| 1782 | |
| 1783 | end: |
| 1784 | return ret; |
| 1785 | } |
| 1786 | |
| 1787 | LTTNG_HIDDEN |
| 1788 | int mi_lttng_snapshot_record(struct mi_writer *writer, |
| 1789 | const char *current_session_name, const char *url, |
| 1790 | const char *cmdline_ctrl_url, const char *cmdline_data_url) |
| 1791 | { |
| 1792 | int ret; |
| 1793 | |
| 1794 | /* Open element snapshot */ |
| 1795 | ret = mi_lttng_writer_open_element(writer, |
| 1796 | mi_lttng_element_command_snapshot); |
| 1797 | if (ret) { |
| 1798 | goto end; |
| 1799 | } |
| 1800 | |
| 1801 | /* |
| 1802 | * If a valid an URL was given, serialize it, |
| 1803 | * else take the command line data and ctrl urls*/ |
| 1804 | if (url) { |
| 1805 | /* Destination of the output (ctrl_url)*/ |
| 1806 | ret = mi_lttng_writer_write_element_string(writer, |
| 1807 | mi_lttng_element_snapshot_ctrl_url, url); |
| 1808 | if (ret) { |
| 1809 | goto end; |
| 1810 | } |
| 1811 | } else if (cmdline_ctrl_url) { |
| 1812 | /* Destination of the output (ctrl_url)*/ |
| 1813 | ret = mi_lttng_writer_write_element_string(writer, |
| 1814 | mi_lttng_element_snapshot_ctrl_url, cmdline_ctrl_url); |
| 1815 | if (ret) { |
| 1816 | goto end; |
| 1817 | } |
| 1818 | |
| 1819 | /* Destination of the output (data_url) */ |
| 1820 | ret = mi_lttng_writer_write_element_string(writer, |
| 1821 | mi_lttng_element_snapshot_data_url, cmdline_data_url); |
| 1822 | if (ret) { |
| 1823 | goto end; |
| 1824 | } |
| 1825 | } |
| 1826 | |
| 1827 | /* Close record_snapshot element */ |
| 1828 | ret = mi_lttng_writer_close_element(writer); |
| 1829 | |
| 1830 | end: |
| 1831 | return ret; |
| 1832 | } |