| 1 | /* |
| 2 | * Copyright (C) 2014 - Jonathan Rajotte <jonathan.r.julien@gmail.com> |
| 3 | * - Olivier Cotte <olivier.cotte@polymtl.ca> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License, version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., 51 |
| 16 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 17 | */ |
| 18 | |
| 19 | |
| 20 | #include <include/config.h> |
| 21 | #include <common/config/config.h> |
| 22 | #include "mi-lttng.h" |
| 23 | |
| 24 | #include <assert.h> |
| 25 | |
| 26 | /* Strings related to command */ |
| 27 | const char * const mi_lttng_element_command = "command"; |
| 28 | const char * const mi_lttng_element_command_name = "name"; |
| 29 | const char * const mi_lttng_element_command_version = "version"; |
| 30 | const char * const mi_lttng_element_command_list = "list"; |
| 31 | const char * const mi_lttng_element_command_save = "save"; |
| 32 | const char * const mi_lttng_element_command_load = "load"; |
| 33 | const char * const mi_lttng_element_command_start = "start"; |
| 34 | const char * const mi_lttng_element_command_stop = "stop"; |
| 35 | const char * const mi_lttng_element_command_create = "create"; |
| 36 | const char * const mi_lttng_element_command_destroy = "destroy"; |
| 37 | const char * const mi_lttng_element_command_calibrate = "calibrate"; |
| 38 | const char * const mi_lttng_element_command_add_context = "add-context"; |
| 39 | const char * const mi_lttng_element_command_enable_channels = "enable-channel"; |
| 40 | const char * const mi_lttng_element_command_output = "output"; |
| 41 | const char * const mi_lttng_element_command_success = "success"; |
| 42 | |
| 43 | /* Strings related to version command */ |
| 44 | const char * const mi_lttng_element_version = "version"; |
| 45 | const char * const mi_lttng_element_version_str = "string"; |
| 46 | const char * const mi_lttng_element_version_web = "url"; |
| 47 | const char * const mi_lttng_element_version_major = "major"; |
| 48 | const char * const mi_lttng_element_version_minor = "minor"; |
| 49 | const char * const mi_lttng_element_version_commit = "commit"; |
| 50 | const char * const mi_lttng_element_version_license = "license"; |
| 51 | const char * const mi_lttng_element_version_patch_level = "patchLevel"; |
| 52 | const char * const mi_lttng_element_version_description = "description"; |
| 53 | |
| 54 | /* Strings related to pid */ |
| 55 | const char * const mi_lttng_element_pids = "pids"; |
| 56 | const char * const mi_lttng_element_pid = "pid"; |
| 57 | const char * const mi_lttng_element_pid_id = "id"; |
| 58 | |
| 59 | /* Strings related to save command */ |
| 60 | const char * const mi_lttng_element_save = "save"; |
| 61 | |
| 62 | /* Strings related to load command */ |
| 63 | const char * const mi_lttng_element_load = "load"; |
| 64 | |
| 65 | /* String related to a lttng_event_field */ |
| 66 | const char * const mi_lttng_element_event_field = "event_field"; |
| 67 | const char * const mi_lttng_element_event_fields = "event_fields"; |
| 68 | |
| 69 | /* String related to lttng_event_context */ |
| 70 | const char * const mi_lttng_context_type_perf_counter = "PERF_COUNTER"; |
| 71 | const char * const mi_lttng_context_type_perf_cpu_counter = "PERF_CPU_COUNTER"; |
| 72 | const char * const mi_lttng_context_type_perf_thread_counter = "PERF_THREAD_COUNTER"; |
| 73 | |
| 74 | /* String related to lttng_event_perf_counter_ctx */ |
| 75 | const char * const mi_lttng_element_perf_counter_context = "perf_counter_context"; |
| 76 | |
| 77 | /* General elements of mi_lttng */ |
| 78 | const char * const mi_lttng_element_type_other = "OTHER"; |
| 79 | const char * const mi_lttng_element_type_integer = "INTEGER"; |
| 80 | const char * const mi_lttng_element_type_enum = "ENUM"; |
| 81 | const char * const mi_lttng_element_type_float = "FLOAT"; |
| 82 | const char * const mi_lttng_element_type_string = "STRING"; |
| 83 | const char * const mi_lttng_element_nowrite = "nowrite"; |
| 84 | const char * const mi_lttng_element_success = "success"; |
| 85 | |
| 86 | /* String related to loglevel */ |
| 87 | const char * const mi_lttng_loglevel_str_alert = "TRACE_ALERT"; |
| 88 | const char * const mi_lttng_loglevel_str_crit = "TRACE_CRIT"; |
| 89 | const char * const mi_lttng_loglevel_str_debug = "TRACE_DEBUG"; |
| 90 | const char * const mi_lttng_loglevel_str_debug_function = "TRACE_DEBUG_FUNCTION"; |
| 91 | const char * const mi_lttng_loglevel_str_debug_line = "TRACE_DEBUG_LINE"; |
| 92 | const char * const mi_lttng_loglevel_str_debug_module = "TRACE_DEBUG_MODULE"; |
| 93 | const char * const mi_lttng_loglevel_str_debug_process = "TRACE_DEBUG_PROCESS"; |
| 94 | const char * const mi_lttng_loglevel_str_debug_program = "TRACE_DEBUG_PROGRAM"; |
| 95 | const char * const mi_lttng_loglevel_str_debug_system = "TRACE_DEBUG_SYSTEM"; |
| 96 | const char * const mi_lttng_loglevel_str_debug_unit = "TRACE_DEBUG_UNIT"; |
| 97 | const char * const mi_lttng_loglevel_str_emerg = "TRACE_EMERG"; |
| 98 | const char * const mi_lttng_loglevel_str_err = "TRACE_ERR"; |
| 99 | const char * const mi_lttng_loglevel_str_info = "TRACE_INFO"; |
| 100 | const char * const mi_lttng_loglevel_str_notice = "TRACE_NOTICE"; |
| 101 | const char * const mi_lttng_loglevel_str_unknown = "UNKNOWN"; |
| 102 | const char * const mi_lttng_loglevel_str_warning = "TRACE_WARNING"; |
| 103 | |
| 104 | /* String related to loglevel type */ |
| 105 | const char * const mi_lttng_loglevel_type_all = "ALL"; |
| 106 | const char * const mi_lttng_loglevel_type_range = "RANGE"; |
| 107 | const char * const mi_lttng_loglevel_type_single = "SINGLE"; |
| 108 | const char * const mi_lttng_loglevel_type_unknown = "UNKNOWN"; |
| 109 | |
| 110 | /* String related to lttng_calibrate */ |
| 111 | const char * const mi_lttng_element_calibrate = "calibrate"; |
| 112 | const char * const mi_lttng_element_calibrate_function = "FUNCTION"; |
| 113 | |
| 114 | const char * const mi_lttng_element_empty = ""; |
| 115 | |
| 116 | const char *mi_lttng_loglevel_string(int value) |
| 117 | { |
| 118 | switch (value) { |
| 119 | case -1: |
| 120 | return mi_lttng_element_empty; |
| 121 | case LTTNG_LOGLEVEL_EMERG: |
| 122 | return mi_lttng_loglevel_str_emerg; |
| 123 | case LTTNG_LOGLEVEL_ALERT: |
| 124 | return mi_lttng_loglevel_str_alert; |
| 125 | case LTTNG_LOGLEVEL_CRIT: |
| 126 | return mi_lttng_loglevel_str_crit; |
| 127 | case LTTNG_LOGLEVEL_ERR: |
| 128 | return mi_lttng_loglevel_str_err; |
| 129 | case LTTNG_LOGLEVEL_WARNING: |
| 130 | return mi_lttng_loglevel_str_warning; |
| 131 | case LTTNG_LOGLEVEL_NOTICE: |
| 132 | return mi_lttng_loglevel_str_notice; |
| 133 | case LTTNG_LOGLEVEL_INFO: |
| 134 | return mi_lttng_loglevel_str_info; |
| 135 | case LTTNG_LOGLEVEL_DEBUG_SYSTEM: |
| 136 | return mi_lttng_loglevel_str_debug_system; |
| 137 | case LTTNG_LOGLEVEL_DEBUG_PROGRAM: |
| 138 | return mi_lttng_loglevel_str_debug_program; |
| 139 | case LTTNG_LOGLEVEL_DEBUG_PROCESS: |
| 140 | return mi_lttng_loglevel_str_debug_process; |
| 141 | case LTTNG_LOGLEVEL_DEBUG_MODULE: |
| 142 | return mi_lttng_loglevel_str_debug_module; |
| 143 | case LTTNG_LOGLEVEL_DEBUG_UNIT: |
| 144 | return mi_lttng_loglevel_str_debug_unit; |
| 145 | case LTTNG_LOGLEVEL_DEBUG_FUNCTION: |
| 146 | return mi_lttng_loglevel_str_debug_function; |
| 147 | case LTTNG_LOGLEVEL_DEBUG_LINE: |
| 148 | return mi_lttng_loglevel_str_debug_line; |
| 149 | case LTTNG_LOGLEVEL_DEBUG: |
| 150 | return mi_lttng_loglevel_str_debug; |
| 151 | default: |
| 152 | return mi_lttng_loglevel_str_unknown; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value) |
| 157 | { |
| 158 | switch (value) { |
| 159 | case LTTNG_EVENT_LOGLEVEL_ALL: |
| 160 | return mi_lttng_loglevel_type_all; |
| 161 | case LTTNG_EVENT_LOGLEVEL_RANGE: |
| 162 | return mi_lttng_loglevel_type_range; |
| 163 | case LTTNG_EVENT_LOGLEVEL_SINGLE: |
| 164 | return mi_lttng_loglevel_type_single; |
| 165 | default: |
| 166 | return mi_lttng_loglevel_type_unknown; |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | const char *mi_lttng_eventtype_string(enum lttng_event_type value) |
| 171 | { |
| 172 | switch (value) { |
| 173 | case LTTNG_EVENT_ALL: |
| 174 | return config_event_type_all; |
| 175 | case LTTNG_EVENT_TRACEPOINT: |
| 176 | return config_event_type_tracepoint; |
| 177 | case LTTNG_EVENT_PROBE: |
| 178 | return config_event_type_probe; |
| 179 | case LTTNG_EVENT_FUNCTION: |
| 180 | return config_event_type_function; |
| 181 | case LTTNG_EVENT_FUNCTION_ENTRY: |
| 182 | return config_event_type_function_entry; |
| 183 | case LTTNG_EVENT_SYSCALL: |
| 184 | return config_event_type_syscall; |
| 185 | case LTTNG_EVENT_NOOP: |
| 186 | return config_event_type_noop; |
| 187 | default: |
| 188 | return mi_lttng_element_empty; |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | const char *mi_lttng_event_contexttype_string(enum lttng_event_context_type val) |
| 193 | { |
| 194 | switch (val) { |
| 195 | case LTTNG_EVENT_CONTEXT_PID: |
| 196 | return config_event_context_pid; |
| 197 | case LTTNG_EVENT_CONTEXT_PERF_COUNTER: |
| 198 | return mi_lttng_context_type_perf_counter; |
| 199 | case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER: |
| 200 | return mi_lttng_context_type_perf_thread_counter; |
| 201 | case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER: |
| 202 | return mi_lttng_context_type_perf_cpu_counter; |
| 203 | case LTTNG_EVENT_CONTEXT_PROCNAME: |
| 204 | return config_event_context_procname; |
| 205 | case LTTNG_EVENT_CONTEXT_PRIO: |
| 206 | return config_event_context_prio; |
| 207 | case LTTNG_EVENT_CONTEXT_NICE: |
| 208 | return config_event_context_nice; |
| 209 | case LTTNG_EVENT_CONTEXT_VPID: |
| 210 | return config_event_context_vpid; |
| 211 | case LTTNG_EVENT_CONTEXT_TID: |
| 212 | return config_event_context_tid; |
| 213 | case LTTNG_EVENT_CONTEXT_VTID: |
| 214 | return config_event_context_vtid; |
| 215 | case LTTNG_EVENT_CONTEXT_PPID: |
| 216 | return config_event_context_ppid; |
| 217 | case LTTNG_EVENT_CONTEXT_VPPID: |
| 218 | return config_event_context_vppid; |
| 219 | case LTTNG_EVENT_CONTEXT_PTHREAD_ID: |
| 220 | return config_event_context_pthread_id; |
| 221 | case LTTNG_EVENT_CONTEXT_HOSTNAME: |
| 222 | return config_event_context_hostname; |
| 223 | case LTTNG_EVENT_CONTEXT_IP: |
| 224 | return config_event_context_ip; |
| 225 | default: |
| 226 | return NULL; |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type val) |
| 231 | { |
| 232 | switch (val) { |
| 233 | case(LTTNG_EVENT_FIELD_INTEGER): |
| 234 | return mi_lttng_element_type_integer; |
| 235 | case(LTTNG_EVENT_FIELD_ENUM): |
| 236 | return mi_lttng_element_type_enum; |
| 237 | case(LTTNG_EVENT_FIELD_FLOAT): |
| 238 | return mi_lttng_element_type_float; |
| 239 | case(LTTNG_EVENT_FIELD_STRING): |
| 240 | return mi_lttng_element_type_string; |
| 241 | default: |
| 242 | return mi_lttng_element_type_other; |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | const char *mi_lttng_domaintype_string(enum lttng_domain_type value) |
| 247 | { |
| 248 | /* Note: This is a *duplicate* of get_domain_str from bin/lttng/utils.c */ |
| 249 | switch (value) { |
| 250 | case LTTNG_DOMAIN_KERNEL: |
| 251 | return config_domain_type_kernel; |
| 252 | case LTTNG_DOMAIN_UST: |
| 253 | return config_domain_type_ust; |
| 254 | case LTTNG_DOMAIN_JUL: |
| 255 | return config_domain_type_jul; |
| 256 | default: |
| 257 | /* Should not have an unknown domain */ |
| 258 | assert(0); |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | const char *mi_lttng_buffertype_string(enum lttng_buffer_type value) |
| 263 | { |
| 264 | switch (value) { |
| 265 | case LTTNG_BUFFER_PER_PID: |
| 266 | return config_buffer_type_per_pid; |
| 267 | case LTTNG_BUFFER_PER_UID: |
| 268 | return config_buffer_type_per_uid; |
| 269 | case LTTNG_BUFFER_GLOBAL: |
| 270 | return config_buffer_type_global; |
| 271 | default: |
| 272 | /* Should not have an unknow buffer type */ |
| 273 | assert(0); |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | const char *mi_lttng_calibratetype_string(enum lttng_calibrate_type val) |
| 278 | { |
| 279 | const char *ret; |
| 280 | |
| 281 | switch (val) { |
| 282 | case LTTNG_CALIBRATE_FUNCTION: |
| 283 | ret = mi_lttng_element_calibrate_function; |
| 284 | break; |
| 285 | default: |
| 286 | ret = mi_lttng_element_empty; |
| 287 | break; |
| 288 | } |
| 289 | return ret; |
| 290 | } |
| 291 | |
| 292 | LTTNG_HIDDEN |
| 293 | struct mi_writer *mi_lttng_writer_create(int fd_output, int mi_output_type) |
| 294 | { |
| 295 | struct mi_writer *mi_writer; |
| 296 | |
| 297 | mi_writer = zmalloc(sizeof(struct mi_writer)); |
| 298 | if (!mi_writer) { |
| 299 | PERROR("zmalloc mi_writer_create"); |
| 300 | goto end; |
| 301 | } |
| 302 | if (mi_output_type == LTTNG_MI_XML) { |
| 303 | mi_writer->writer = config_writer_create(fd_output); |
| 304 | if (!mi_writer->writer) { |
| 305 | goto err_destroy; |
| 306 | } |
| 307 | mi_writer->type = LTTNG_MI_XML; |
| 308 | } else { |
| 309 | goto err_destroy; |
| 310 | } |
| 311 | |
| 312 | end: |
| 313 | return mi_writer; |
| 314 | |
| 315 | err_destroy: |
| 316 | free(mi_writer); |
| 317 | return NULL; |
| 318 | } |
| 319 | |
| 320 | LTTNG_HIDDEN |
| 321 | int mi_lttng_writer_destroy(struct mi_writer *writer) |
| 322 | { |
| 323 | int ret; |
| 324 | |
| 325 | if (!writer) { |
| 326 | ret = -EINVAL; |
| 327 | goto end; |
| 328 | } |
| 329 | |
| 330 | ret = config_writer_destroy(writer->writer); |
| 331 | if (ret < 0) { |
| 332 | goto end; |
| 333 | } |
| 334 | |
| 335 | free(writer); |
| 336 | end: |
| 337 | return ret; |
| 338 | } |
| 339 | |
| 340 | LTTNG_HIDDEN |
| 341 | int mi_lttng_writer_command_open(struct mi_writer *writer, const char *command) |
| 342 | { |
| 343 | int ret; |
| 344 | |
| 345 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_command); |
| 346 | if (ret) { |
| 347 | goto end; |
| 348 | } |
| 349 | ret = mi_lttng_writer_write_element_string(writer, |
| 350 | mi_lttng_element_command_name, command); |
| 351 | end: |
| 352 | return ret; |
| 353 | } |
| 354 | |
| 355 | LTTNG_HIDDEN |
| 356 | int mi_lttng_writer_command_close(struct mi_writer *writer) |
| 357 | { |
| 358 | return mi_lttng_writer_close_element(writer); |
| 359 | } |
| 360 | |
| 361 | LTTNG_HIDDEN |
| 362 | int mi_lttng_writer_open_element(struct mi_writer *writer, |
| 363 | const char *element_name) |
| 364 | { |
| 365 | return config_writer_open_element(writer->writer, element_name); |
| 366 | } |
| 367 | |
| 368 | LTTNG_HIDDEN |
| 369 | int mi_lttng_writer_close_element(struct mi_writer *writer) |
| 370 | { |
| 371 | return config_writer_close_element(writer->writer); |
| 372 | } |
| 373 | |
| 374 | LTTNG_HIDDEN |
| 375 | int mi_lttng_close_multi_element(struct mi_writer *writer, |
| 376 | unsigned int nb_element) |
| 377 | { |
| 378 | int ret, i; |
| 379 | |
| 380 | if (nb_element < 1) { |
| 381 | ret = 0; |
| 382 | goto end; |
| 383 | } |
| 384 | for (i = 0; i < nb_element; i++) { |
| 385 | ret = mi_lttng_writer_close_element(writer); |
| 386 | if (ret) { |
| 387 | goto end; |
| 388 | } |
| 389 | } |
| 390 | end: |
| 391 | return ret; |
| 392 | } |
| 393 | |
| 394 | LTTNG_HIDDEN |
| 395 | int mi_lttng_writer_write_element_unsigned_int(struct mi_writer *writer, |
| 396 | const char *element_name, uint64_t value) |
| 397 | { |
| 398 | return config_writer_write_element_unsigned_int(writer->writer, |
| 399 | element_name, value); |
| 400 | } |
| 401 | |
| 402 | LTTNG_HIDDEN |
| 403 | int mi_lttng_writer_write_element_signed_int(struct mi_writer *writer, |
| 404 | const char *element_name, int64_t value) |
| 405 | { |
| 406 | return config_writer_write_element_signed_int(writer->writer, |
| 407 | element_name, value); |
| 408 | } |
| 409 | |
| 410 | LTTNG_HIDDEN |
| 411 | int mi_lttng_writer_write_element_bool(struct mi_writer *writer, |
| 412 | const char *element_name, int value) |
| 413 | { |
| 414 | return config_writer_write_element_bool(writer->writer, |
| 415 | element_name, value); |
| 416 | } |
| 417 | |
| 418 | LTTNG_HIDDEN |
| 419 | int mi_lttng_writer_write_element_string(struct mi_writer *writer, |
| 420 | const char *element_name, const char *value) |
| 421 | { |
| 422 | return config_writer_write_element_string(writer->writer, |
| 423 | element_name, value); |
| 424 | } |
| 425 | |
| 426 | LTTNG_HIDDEN |
| 427 | int mi_lttng_version(struct mi_writer *writer, struct mi_lttng_version *version, |
| 428 | const char *lttng_description, const char *lttng_license) |
| 429 | { |
| 430 | int ret; |
| 431 | |
| 432 | /* Open version */ |
| 433 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_version); |
| 434 | if (ret) { |
| 435 | goto end; |
| 436 | } |
| 437 | |
| 438 | /* Version string (contain info like rc etc.) */ |
| 439 | ret = mi_lttng_writer_write_element_string(writer, |
| 440 | mi_lttng_element_version_str, VERSION); |
| 441 | if (ret) { |
| 442 | goto end; |
| 443 | } |
| 444 | |
| 445 | /* Major version number */ |
| 446 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 447 | mi_lttng_element_version_major, version->version_major); |
| 448 | if (ret) { |
| 449 | goto end; |
| 450 | } |
| 451 | |
| 452 | /* Minor version number */ |
| 453 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 454 | mi_lttng_element_version_minor, version->version_minor); |
| 455 | if (ret) { |
| 456 | goto end; |
| 457 | } |
| 458 | |
| 459 | /* Commit version number */ |
| 460 | ret = mi_lttng_writer_write_element_string(writer, |
| 461 | mi_lttng_element_version_commit, version->version_commit); |
| 462 | if (ret) { |
| 463 | goto end; |
| 464 | } |
| 465 | |
| 466 | /* Patch number */ |
| 467 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 468 | mi_lttng_element_version_patch_level, version->version_patchlevel); |
| 469 | if (ret) { |
| 470 | goto end; |
| 471 | } |
| 472 | |
| 473 | /* Name of the version */ |
| 474 | ret = mi_lttng_writer_write_element_string(writer, |
| 475 | config_element_name, version->version_name); |
| 476 | if (ret) { |
| 477 | goto end; |
| 478 | } |
| 479 | |
| 480 | /* Description mostly related to beer... */ |
| 481 | ret = mi_lttng_writer_write_element_string(writer, |
| 482 | mi_lttng_element_version_description, lttng_description); |
| 483 | if (ret) { |
| 484 | goto end; |
| 485 | } |
| 486 | |
| 487 | /* url */ |
| 488 | ret = mi_lttng_writer_write_element_string(writer, |
| 489 | mi_lttng_element_version_web, version->package_url); |
| 490 | if (ret) { |
| 491 | goto end; |
| 492 | } |
| 493 | |
| 494 | /* License: free as in free beer...no...*speech* */ |
| 495 | ret = mi_lttng_writer_write_element_string(writer, |
| 496 | mi_lttng_element_version_license, lttng_license); |
| 497 | if (ret) { |
| 498 | goto end; |
| 499 | } |
| 500 | |
| 501 | /* Close version element */ |
| 502 | ret = mi_lttng_writer_close_element(writer); |
| 503 | |
| 504 | end: |
| 505 | return ret; |
| 506 | } |
| 507 | |
| 508 | LTTNG_HIDDEN |
| 509 | int mi_lttng_sessions_open(struct mi_writer *writer) |
| 510 | { |
| 511 | return mi_lttng_writer_open_element(writer, config_element_sessions); |
| 512 | } |
| 513 | |
| 514 | LTTNG_HIDDEN |
| 515 | int mi_lttng_session(struct mi_writer *writer, |
| 516 | struct lttng_session *session, int is_open) |
| 517 | { |
| 518 | int ret; |
| 519 | |
| 520 | assert(session); |
| 521 | |
| 522 | /* Open sessions element */ |
| 523 | ret = mi_lttng_writer_open_element(writer, |
| 524 | config_element_session); |
| 525 | if (ret) { |
| 526 | goto end; |
| 527 | } |
| 528 | |
| 529 | /* Name of the session */ |
| 530 | ret = mi_lttng_writer_write_element_string(writer, |
| 531 | config_element_name, session->name); |
| 532 | if (ret) { |
| 533 | goto end; |
| 534 | } |
| 535 | |
| 536 | /* Path */ |
| 537 | ret = mi_lttng_writer_write_element_string(writer, |
| 538 | config_element_path, session->path); |
| 539 | if (ret) { |
| 540 | goto end; |
| 541 | } |
| 542 | |
| 543 | /* Enabled ? */ |
| 544 | ret = mi_lttng_writer_write_element_bool(writer, |
| 545 | config_element_enabled, session->enabled); |
| 546 | if (ret) { |
| 547 | goto end; |
| 548 | } |
| 549 | |
| 550 | /* Snapshot mode */ |
| 551 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 552 | config_element_snapshot_mode, session->snapshot_mode); |
| 553 | if (ret) { |
| 554 | goto end; |
| 555 | } |
| 556 | |
| 557 | /* Live timer interval in usec */ |
| 558 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 559 | config_element_live_timer_interval, |
| 560 | session->live_timer_interval); |
| 561 | if (ret) { |
| 562 | goto end; |
| 563 | } |
| 564 | |
| 565 | if (!is_open) { |
| 566 | /* Closing session element */ |
| 567 | ret = mi_lttng_writer_close_element(writer); |
| 568 | } |
| 569 | end: |
| 570 | return ret; |
| 571 | |
| 572 | } |
| 573 | |
| 574 | LTTNG_HIDDEN |
| 575 | int mi_lttng_domains_open(struct mi_writer *writer) |
| 576 | { |
| 577 | return mi_lttng_writer_open_element(writer, config_element_domains); |
| 578 | } |
| 579 | |
| 580 | LTTNG_HIDDEN |
| 581 | int mi_lttng_domain(struct mi_writer *writer, |
| 582 | struct lttng_domain *domain, int is_open) |
| 583 | { |
| 584 | int ret = 0; |
| 585 | const char *str_domain; |
| 586 | const char *str_buffer; |
| 587 | |
| 588 | assert(domain); |
| 589 | |
| 590 | /* Open domain element */ |
| 591 | ret = mi_lttng_writer_open_element(writer, config_element_domain); |
| 592 | if (ret) { |
| 593 | goto end; |
| 594 | } |
| 595 | |
| 596 | /* Domain Type */ |
| 597 | str_domain = mi_lttng_domaintype_string(domain->type); |
| 598 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, |
| 599 | str_domain); |
| 600 | if (ret) { |
| 601 | goto end; |
| 602 | } |
| 603 | |
| 604 | /* Buffer Type */ |
| 605 | str_buffer= mi_lttng_buffertype_string(domain->buf_type); |
| 606 | ret = mi_lttng_writer_write_element_string(writer, |
| 607 | config_element_buffer_type, str_buffer); |
| 608 | if (ret) { |
| 609 | goto end; |
| 610 | } |
| 611 | |
| 612 | /* TODO: attr... not sure how to use the union.... */ |
| 613 | |
| 614 | if (!is_open) { |
| 615 | /* Closing domain element */ |
| 616 | ret = mi_lttng_writer_close_element(writer); |
| 617 | } |
| 618 | |
| 619 | end: |
| 620 | return ret; |
| 621 | |
| 622 | } |
| 623 | |
| 624 | LTTNG_HIDDEN |
| 625 | int mi_lttng_channels_open(struct mi_writer *writer) |
| 626 | { |
| 627 | return mi_lttng_writer_open_element(writer, config_element_channels); |
| 628 | } |
| 629 | |
| 630 | LTTNG_HIDDEN |
| 631 | int mi_lttng_channel(struct mi_writer *writer, |
| 632 | struct lttng_channel *channel, int is_open) |
| 633 | { |
| 634 | int ret = 0; |
| 635 | |
| 636 | assert(channel); |
| 637 | |
| 638 | /* Opening channel element */ |
| 639 | ret = mi_lttng_writer_open_element(writer, config_element_channel); |
| 640 | if (ret) { |
| 641 | goto end; |
| 642 | } |
| 643 | |
| 644 | /* Name */ |
| 645 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, |
| 646 | channel->name); |
| 647 | if (ret) { |
| 648 | goto end; |
| 649 | } |
| 650 | |
| 651 | /* Enabled ? */ |
| 652 | ret = mi_lttng_writer_write_element_bool(writer, |
| 653 | config_element_enabled, channel->enabled); |
| 654 | if (ret) { |
| 655 | goto end; |
| 656 | } |
| 657 | |
| 658 | /* Attribute */ |
| 659 | ret = mi_lttng_channel_attr(writer, &channel->attr); |
| 660 | if (ret) { |
| 661 | goto end; |
| 662 | } |
| 663 | |
| 664 | if (!is_open) { |
| 665 | /* Closing channel element */ |
| 666 | ret = mi_lttng_writer_close_element(writer); |
| 667 | if (ret) { |
| 668 | goto end; |
| 669 | } |
| 670 | } |
| 671 | end: |
| 672 | return ret; |
| 673 | } |
| 674 | |
| 675 | LTTNG_HIDDEN |
| 676 | int mi_lttng_channel_attr(struct mi_writer *writer, |
| 677 | struct lttng_channel_attr *attr) |
| 678 | { |
| 679 | int ret = 0; |
| 680 | |
| 681 | assert(attr); |
| 682 | |
| 683 | /* Opening Attributes */ |
| 684 | ret = mi_lttng_writer_open_element(writer, config_element_attributes); |
| 685 | if (ret) { |
| 686 | goto end; |
| 687 | } |
| 688 | |
| 689 | /* Overwrite */ |
| 690 | ret = mi_lttng_writer_write_element_string(writer, |
| 691 | config_element_overwrite_mode, |
| 692 | attr->overwrite ? config_overwrite_mode_overwrite : |
| 693 | config_overwrite_mode_discard); |
| 694 | if (ret) { |
| 695 | goto end; |
| 696 | } |
| 697 | |
| 698 | /* Sub buffer size in byte */ |
| 699 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 700 | config_element_subbuf_size, attr->subbuf_size); |
| 701 | if (ret) { |
| 702 | goto end; |
| 703 | } |
| 704 | |
| 705 | /* Number of subbuffer (power of two) */ |
| 706 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 707 | config_element_num_subbuf, |
| 708 | attr->num_subbuf); |
| 709 | if (ret) { |
| 710 | goto end; |
| 711 | } |
| 712 | |
| 713 | /* Switch timer interval in usec */ |
| 714 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 715 | config_element_switch_timer_interval, |
| 716 | attr->switch_timer_interval); |
| 717 | if (ret) { |
| 718 | goto end; |
| 719 | } |
| 720 | |
| 721 | /* Read timer interval in usec */ |
| 722 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 723 | config_element_read_timer_interval, |
| 724 | attr->read_timer_interval); |
| 725 | if (ret) { |
| 726 | goto end; |
| 727 | } |
| 728 | |
| 729 | /* Event output */ |
| 730 | ret = mi_lttng_writer_write_element_string(writer, |
| 731 | config_element_output_type, |
| 732 | attr->output == LTTNG_EVENT_SPLICE ? |
| 733 | config_output_type_splice : config_output_type_mmap); |
| 734 | if (ret) { |
| 735 | goto end; |
| 736 | } |
| 737 | |
| 738 | /* Tracefile size in bytes */ |
| 739 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 740 | config_element_tracefile_size, attr->tracefile_size); |
| 741 | if (ret) { |
| 742 | goto end; |
| 743 | } |
| 744 | |
| 745 | /* Count of tracefiles */ |
| 746 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 747 | config_element_tracefile_count, |
| 748 | attr->tracefile_count); |
| 749 | if (ret) { |
| 750 | goto end; |
| 751 | } |
| 752 | |
| 753 | /* Live timer interval in usec*/ |
| 754 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 755 | config_element_live_timer_interval, |
| 756 | attr->live_timer_interval); |
| 757 | if (ret) { |
| 758 | goto end; |
| 759 | } |
| 760 | |
| 761 | /* Closing attributes */ |
| 762 | ret = mi_lttng_writer_close_element(writer); |
| 763 | if (ret) { |
| 764 | goto end; |
| 765 | } |
| 766 | end: |
| 767 | return ret; |
| 768 | |
| 769 | } |
| 770 | |
| 771 | LTTNG_HIDDEN |
| 772 | int mi_lttng_event_common_attributes(struct mi_writer *writer, |
| 773 | struct lttng_event *event) |
| 774 | { |
| 775 | int ret; |
| 776 | |
| 777 | /* Open event element */ |
| 778 | ret = mi_lttng_writer_open_element(writer, config_element_event); |
| 779 | if (ret) { |
| 780 | goto end; |
| 781 | } |
| 782 | |
| 783 | /* event name */ |
| 784 | ret = mi_lttng_writer_write_element_string(writer, |
| 785 | config_element_name, event->name); |
| 786 | if (ret) { |
| 787 | goto end; |
| 788 | } |
| 789 | |
| 790 | /* event type */ |
| 791 | ret = mi_lttng_writer_write_element_string(writer, |
| 792 | config_element_type, mi_lttng_eventtype_string(event->type)); |
| 793 | if (ret) { |
| 794 | goto end; |
| 795 | } |
| 796 | |
| 797 | /* is event enabled */ |
| 798 | ret = mi_lttng_writer_write_element_bool(writer, |
| 799 | config_element_enabled, event->enabled); |
| 800 | if (ret) { |
| 801 | goto end; |
| 802 | } |
| 803 | |
| 804 | /* event filter enabled? */ |
| 805 | ret = mi_lttng_writer_write_element_bool(writer, |
| 806 | config_element_filter, event->filter); |
| 807 | |
| 808 | end: |
| 809 | return ret; |
| 810 | } |
| 811 | |
| 812 | LTTNG_HIDDEN |
| 813 | int mi_lttng_event_tracepoint_loglevel(struct mi_writer *writer, |
| 814 | struct lttng_event *event) |
| 815 | { |
| 816 | int ret; |
| 817 | |
| 818 | /* event loglevel */ |
| 819 | ret = mi_lttng_writer_write_element_string(writer, |
| 820 | config_element_loglevel, mi_lttng_loglevel_string(event->loglevel)); |
| 821 | if (ret) { |
| 822 | goto end; |
| 823 | } |
| 824 | |
| 825 | ret = mi_lttng_writer_write_element_string(writer, |
| 826 | config_element_loglevel_type, |
| 827 | mi_lttng_logleveltype_string(event->loglevel_type)); |
| 828 | if (ret) { |
| 829 | goto end; |
| 830 | } |
| 831 | |
| 832 | /* event exclusion filter */ |
| 833 | ret = mi_lttng_writer_write_element_bool(writer, |
| 834 | config_element_exclusion, event->exclusion); |
| 835 | if (ret) { |
| 836 | goto end; |
| 837 | } |
| 838 | |
| 839 | end: |
| 840 | return ret; |
| 841 | } |
| 842 | |
| 843 | LTTNG_HIDDEN |
| 844 | int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer *writer, |
| 845 | struct lttng_event *event) |
| 846 | { |
| 847 | /* event exclusion filter */ |
| 848 | return mi_lttng_writer_write_element_bool(writer, |
| 849 | config_element_exclusion, event->exclusion); |
| 850 | } |
| 851 | |
| 852 | LTTNG_HIDDEN |
| 853 | int mi_lttng_event_function_probe(struct mi_writer *writer, |
| 854 | struct lttng_event *event) |
| 855 | { |
| 856 | int ret; |
| 857 | |
| 858 | if (event->attr.probe.addr != 0) { |
| 859 | /* event probe address */ |
| 860 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 861 | config_element_address, event->attr.probe.addr); |
| 862 | if (ret) { |
| 863 | goto end; |
| 864 | } |
| 865 | } else { |
| 866 | /* event probe offset */ |
| 867 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 868 | config_element_offset, event->attr.probe.offset); |
| 869 | if (ret) { |
| 870 | goto end; |
| 871 | } |
| 872 | |
| 873 | /* event probe symbol_name */ |
| 874 | ret = mi_lttng_writer_write_element_string(writer, |
| 875 | config_element_symbol_name, event->attr.probe.symbol_name); |
| 876 | if (ret) { |
| 877 | goto end; |
| 878 | } |
| 879 | } |
| 880 | end: |
| 881 | return ret; |
| 882 | } |
| 883 | |
| 884 | LTTNG_HIDDEN |
| 885 | int mi_lttng_event_function_entry(struct mi_writer *writer, |
| 886 | struct lttng_event *event) |
| 887 | { |
| 888 | /* event probe symbol_name */ |
| 889 | return mi_lttng_writer_write_element_string(writer, |
| 890 | config_element_symbol_name, event->attr.ftrace.symbol_name); |
| 891 | } |
| 892 | |
| 893 | LTTNG_HIDDEN |
| 894 | int mi_lttng_events_open(struct mi_writer *writer) |
| 895 | { |
| 896 | return mi_lttng_writer_open_element(writer, config_element_events); |
| 897 | } |
| 898 | |
| 899 | LTTNG_HIDDEN |
| 900 | int mi_lttng_event(struct mi_writer *writer, |
| 901 | struct lttng_event *event, int is_open) |
| 902 | { |
| 903 | int ret; |
| 904 | |
| 905 | ret = mi_lttng_event_common_attributes(writer, event); |
| 906 | if (ret) { |
| 907 | goto end; |
| 908 | } |
| 909 | |
| 910 | switch (event->type) { |
| 911 | case LTTNG_EVENT_ALL: |
| 912 | /* We should never have "all" events in list. */ |
| 913 | assert(0); |
| 914 | break; |
| 915 | case LTTNG_EVENT_TRACEPOINT: |
| 916 | { |
| 917 | if (event->loglevel != -1) { |
| 918 | ret = mi_lttng_event_tracepoint_loglevel(writer, event); |
| 919 | } else { |
| 920 | ret = mi_lttng_event_tracepoint_no_loglevel(writer, event); |
| 921 | } |
| 922 | break; |
| 923 | } |
| 924 | case LTTNG_EVENT_PROBE: |
| 925 | ret = mi_lttng_event_function_probe(writer, event); |
| 926 | break; |
| 927 | case LTTNG_EVENT_FUNCTION_ENTRY: |
| 928 | ret = mi_lttng_event_function_entry(writer, event); |
| 929 | break; |
| 930 | default: |
| 931 | break; |
| 932 | } |
| 933 | |
| 934 | if (!is_open) { |
| 935 | ret = mi_lttng_writer_close_element(writer); |
| 936 | } |
| 937 | |
| 938 | end: |
| 939 | return ret; |
| 940 | } |
| 941 | |
| 942 | LTTNG_HIDDEN |
| 943 | int mi_lttng_pids_open(struct mi_writer *writer) |
| 944 | { |
| 945 | return mi_lttng_writer_open_element(writer, mi_lttng_element_pids); |
| 946 | } |
| 947 | |
| 948 | LTTNG_HIDDEN |
| 949 | int mi_lttng_pid(struct mi_writer *writer, pid_t pid , const char *cmdline, |
| 950 | int is_open) |
| 951 | { |
| 952 | int ret; |
| 953 | |
| 954 | /* Open element pid */ |
| 955 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_pid); |
| 956 | if (ret) { |
| 957 | goto end; |
| 958 | } |
| 959 | |
| 960 | /* Writing pid number */ |
| 961 | ret = mi_lttng_writer_write_element_signed_int(writer, |
| 962 | mi_lttng_element_pid_id, (int)pid); |
| 963 | if (ret) { |
| 964 | goto end; |
| 965 | } |
| 966 | |
| 967 | /* Writing name of the process */ |
| 968 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, |
| 969 | cmdline); |
| 970 | if (ret) { |
| 971 | goto end; |
| 972 | } |
| 973 | |
| 974 | if (!is_open) { |
| 975 | /* Closing Pid */ |
| 976 | ret = mi_lttng_writer_close_element(writer); |
| 977 | } |
| 978 | |
| 979 | end: |
| 980 | return ret; |
| 981 | } |
| 982 | |
| 983 | LTTNG_HIDDEN |
| 984 | int mi_lttng_event_fields_open(struct mi_writer *writer) |
| 985 | { |
| 986 | return mi_lttng_writer_open_element(writer, mi_lttng_element_event_fields); |
| 987 | } |
| 988 | |
| 989 | LTTNG_HIDDEN |
| 990 | int mi_lttng_event_field(struct mi_writer *writer, |
| 991 | struct lttng_event_field *field) |
| 992 | { |
| 993 | int ret; |
| 994 | |
| 995 | if (!field->field_name[0]) { |
| 996 | /* To Review: not sure if legal david ? |
| 997 | * how should this be handle ? |
| 998 | */ |
| 999 | ret = 0; |
| 1000 | goto end; |
| 1001 | } |
| 1002 | |
| 1003 | /* Open field */ |
| 1004 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_event_field); |
| 1005 | if (ret) { |
| 1006 | goto end; |
| 1007 | } |
| 1008 | |
| 1009 | if (!field->field_name[0]) { |
| 1010 | goto close; |
| 1011 | } |
| 1012 | |
| 1013 | /* Name */ |
| 1014 | ret = mi_lttng_writer_write_element_string(writer, config_element_name, |
| 1015 | field->field_name); |
| 1016 | if (ret) { |
| 1017 | goto end; |
| 1018 | } |
| 1019 | |
| 1020 | /* Type */ |
| 1021 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, |
| 1022 | mi_lttng_eventfieldtype_string(field->type)); |
| 1023 | if (ret) { |
| 1024 | goto end; |
| 1025 | } |
| 1026 | |
| 1027 | /* nowrite */ |
| 1028 | ret = mi_lttng_writer_write_element_signed_int(writer, |
| 1029 | mi_lttng_element_nowrite, field->nowrite); |
| 1030 | if (ret) { |
| 1031 | goto end; |
| 1032 | } |
| 1033 | |
| 1034 | close: |
| 1035 | /* Close field element */ |
| 1036 | ret = mi_lttng_writer_close_element(writer); |
| 1037 | |
| 1038 | end: |
| 1039 | return ret; |
| 1040 | } |
| 1041 | |
| 1042 | LTTNG_HIDDEN |
| 1043 | int mi_lttng_calibrate(struct mi_writer *writer, |
| 1044 | struct lttng_calibrate *calibrate) |
| 1045 | { |
| 1046 | int ret; |
| 1047 | |
| 1048 | /* Open calibrate element */ |
| 1049 | ret = mi_lttng_writer_open_element(writer, mi_lttng_element_calibrate); |
| 1050 | if (ret) { |
| 1051 | goto end; |
| 1052 | } |
| 1053 | |
| 1054 | /* Calibration type */ |
| 1055 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, |
| 1056 | mi_lttng_calibratetype_string(calibrate->type)); |
| 1057 | if (ret) { |
| 1058 | goto end; |
| 1059 | } |
| 1060 | |
| 1061 | /* Closing calibrate element */ |
| 1062 | ret = mi_lttng_writer_close_element(writer); |
| 1063 | end: |
| 1064 | return ret; |
| 1065 | } |
| 1066 | LTTNG_HIDDEN |
| 1067 | int mi_lttng_context(struct mi_writer *writer, |
| 1068 | struct lttng_event_context *context, int is_open) |
| 1069 | { |
| 1070 | int ret; |
| 1071 | const char *type_string; |
| 1072 | struct lttng_event_perf_counter_ctx *perf_context; |
| 1073 | /* Open context */ |
| 1074 | ret = mi_lttng_writer_open_element(writer , config_element_context); |
| 1075 | if (ret) { |
| 1076 | goto end; |
| 1077 | } |
| 1078 | |
| 1079 | type_string = mi_lttng_event_contexttype_string(context->ctx); |
| 1080 | if (!type_string) { |
| 1081 | ret = -LTTNG_ERR_INVALID; |
| 1082 | goto end; |
| 1083 | } |
| 1084 | |
| 1085 | /* Print context type */ |
| 1086 | ret = mi_lttng_writer_write_element_string(writer, config_element_type, |
| 1087 | type_string); |
| 1088 | |
| 1089 | /* Special case for PERF_*_COUNTER |
| 1090 | * print the lttng_event_perf_counter_ctx*/ |
| 1091 | switch (context->ctx) { |
| 1092 | case LTTNG_EVENT_CONTEXT_PERF_COUNTER: |
| 1093 | case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER: |
| 1094 | case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER: |
| 1095 | perf_context = &context->u.perf_counter; |
| 1096 | ret = mi_lttng_perf_counter_context(writer, perf_context); |
| 1097 | if (ret) { |
| 1098 | goto end; |
| 1099 | } |
| 1100 | break; |
| 1101 | default: |
| 1102 | break; |
| 1103 | } |
| 1104 | |
| 1105 | /* Close context */ |
| 1106 | if (!is_open) { |
| 1107 | ret = mi_lttng_writer_close_element(writer); |
| 1108 | } |
| 1109 | |
| 1110 | end: |
| 1111 | return ret; |
| 1112 | } |
| 1113 | |
| 1114 | LTTNG_HIDDEN |
| 1115 | int mi_lttng_perf_counter_context(struct mi_writer *writer, |
| 1116 | struct lttng_event_perf_counter_ctx *perf_context) |
| 1117 | { |
| 1118 | int ret; |
| 1119 | |
| 1120 | /* Open perf_counter_context */ |
| 1121 | ret = mi_lttng_writer_open_element(writer, |
| 1122 | mi_lttng_element_perf_counter_context); |
| 1123 | if (ret) { |
| 1124 | goto end; |
| 1125 | } |
| 1126 | |
| 1127 | /* Type */ |
| 1128 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1129 | config_element_type, perf_context->type); |
| 1130 | if (ret) { |
| 1131 | goto end; |
| 1132 | } |
| 1133 | |
| 1134 | /* Config */ |
| 1135 | ret = mi_lttng_writer_write_element_unsigned_int(writer, |
| 1136 | config_element_config, perf_context->config); |
| 1137 | if (ret) { |
| 1138 | goto end; |
| 1139 | } |
| 1140 | |
| 1141 | /* Name of the perf counter */ |
| 1142 | ret = mi_lttng_writer_write_element_string(writer, |
| 1143 | config_element_name, perf_context->name); |
| 1144 | if (ret) { |
| 1145 | goto end; |
| 1146 | } |
| 1147 | |
| 1148 | /* Close perf_counter_context */ |
| 1149 | ret = mi_lttng_writer_close_element(writer); |
| 1150 | end: |
| 1151 | return ret; |
| 1152 | } |