| 1 | /* |
| 2 | * Copyright (C) 2020 Francis Deslauriers <francis.deslauriers@efficios.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: LGPL-2.1-only |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #include <math.h> |
| 9 | |
| 10 | #include <common/dynamic-array.h> |
| 11 | #include <lttng/domain.h> |
| 12 | #include <lttng/lttng-error.h> |
| 13 | #include <lttng/map/map.h> |
| 14 | #include <lttng/map/map-internal.h> |
| 15 | #include <lttng/map/map-query.h> |
| 16 | |
| 17 | #include "../command.h" |
| 18 | |
| 19 | #include "common/argpar/argpar.h" |
| 20 | |
| 21 | enum { |
| 22 | OPT_HELP, |
| 23 | OPT_SESSION, |
| 24 | OPT_LIST_OPTIONS, |
| 25 | OPT_USERSPACE, |
| 26 | OPT_KERNEL, |
| 27 | OPT_KEY, |
| 28 | }; |
| 29 | |
| 30 | static const |
| 31 | struct argpar_opt_descr view_map_options[] = { |
| 32 | { OPT_HELP, 'h', "help", false }, |
| 33 | { OPT_SESSION, 's', "session", true }, |
| 34 | { OPT_LIST_OPTIONS, '\0', "list-options", false }, |
| 35 | /* Domains */ |
| 36 | { OPT_USERSPACE, 'u', "userspace", false }, |
| 37 | { OPT_KERNEL, 'k', "kernel", false }, |
| 38 | { OPT_KEY, '\0', "key", true }, |
| 39 | ARGPAR_OPT_DESCR_SENTINEL, |
| 40 | }; |
| 41 | |
| 42 | static |
| 43 | bool assign_domain_type(enum lttng_domain_type *dest, |
| 44 | enum lttng_domain_type src) |
| 45 | { |
| 46 | bool ret; |
| 47 | |
| 48 | if (*dest == LTTNG_DOMAIN_NONE || *dest == src) { |
| 49 | *dest = src; |
| 50 | ret = true; |
| 51 | } else { |
| 52 | ERR("Multiple domains specified."); |
| 53 | ret = false; |
| 54 | } |
| 55 | |
| 56 | return ret; |
| 57 | } |
| 58 | |
| 59 | static |
| 60 | bool assign_string(char **dest, const char *src, const char *opt_name) |
| 61 | { |
| 62 | bool ret; |
| 63 | |
| 64 | if (*dest) { |
| 65 | ERR("Duplicate %s given.", opt_name); |
| 66 | goto error; |
| 67 | } |
| 68 | |
| 69 | *dest = strdup(src); |
| 70 | if (!*dest) { |
| 71 | ERR("Failed to allocate %s string.", opt_name); |
| 72 | goto error; |
| 73 | } |
| 74 | |
| 75 | ret = true; |
| 76 | goto end; |
| 77 | |
| 78 | error: |
| 79 | ret = false; |
| 80 | |
| 81 | end: |
| 82 | return ret; |
| 83 | } |
| 84 | |
| 85 | static |
| 86 | int compare_key_value_by_key(const void *a, const void *b) |
| 87 | { |
| 88 | const struct lttng_map_key_value_pair *kv_a = |
| 89 | *((const struct lttng_map_key_value_pair **) a); |
| 90 | const struct lttng_map_key_value_pair *kv_b = |
| 91 | *((const struct lttng_map_key_value_pair **) b); |
| 92 | const char *key_a, *key_b; |
| 93 | enum lttng_map_status map_status; |
| 94 | |
| 95 | map_status = lttng_map_key_value_pair_get_key(kv_a, &key_a); |
| 96 | assert(map_status == LTTNG_MAP_STATUS_OK); |
| 97 | |
| 98 | map_status = lttng_map_key_value_pair_get_key(kv_b, &key_b); |
| 99 | assert(map_status == LTTNG_MAP_STATUS_OK); |
| 100 | |
| 101 | return strcmp(key_a, key_b); |
| 102 | } |
| 103 | |
| 104 | static |
| 105 | void print_one_map_key_value_pair(const struct lttng_map_key_value_pair *kv_pair, |
| 106 | size_t key_len, size_t val_len) |
| 107 | { |
| 108 | const char *key = NULL; |
| 109 | int64_t value; |
| 110 | enum lttng_map_status status; |
| 111 | bool has_overflowed, has_underflowed; |
| 112 | |
| 113 | status = lttng_map_key_value_pair_get_key(kv_pair, &key); |
| 114 | if (status != LTTNG_MAP_STATUS_OK) { |
| 115 | ERR("Failed to get key-value pair's key."); |
| 116 | goto end; |
| 117 | } |
| 118 | |
| 119 | status = lttng_map_key_value_pair_get_value(kv_pair, &value); |
| 120 | if (status != LTTNG_MAP_STATUS_OK) { |
| 121 | ERR("Failed to get value-value pair's value."); |
| 122 | goto end; |
| 123 | } |
| 124 | |
| 125 | has_overflowed = lttng_map_key_value_pair_get_has_overflowed(kv_pair); |
| 126 | has_underflowed = lttng_map_key_value_pair_get_has_underflowed(kv_pair); |
| 127 | |
| 128 | /* Ensure the padding is nice using the `%*s` delimiter. */ |
| 129 | MSG("| %*s | %*"PRId64" | %d | %d |", (int) -key_len, key, |
| 130 | (int) val_len, value, has_underflowed, has_overflowed); |
| 131 | |
| 132 | end: |
| 133 | return; |
| 134 | } |
| 135 | |
| 136 | static |
| 137 | void print_line(size_t key_len, size_t val_len) |
| 138 | { |
| 139 | int i; |
| 140 | |
| 141 | _MSG("+"); |
| 142 | for (i = 0; i < (int) key_len + 2; i++) { |
| 143 | _MSG("-"); |
| 144 | } |
| 145 | _MSG("+"); |
| 146 | for (i = 0; i < (int) val_len + 2; i++) { |
| 147 | _MSG("-"); |
| 148 | } |
| 149 | MSG("+----+----+"); |
| 150 | } |
| 151 | |
| 152 | static |
| 153 | size_t number_of_digit(int64_t val) |
| 154 | { |
| 155 | size_t ret = 0; |
| 156 | |
| 157 | if (val == 0) { |
| 158 | ret = 1; |
| 159 | goto end; |
| 160 | } |
| 161 | |
| 162 | if (val < 0) { |
| 163 | /* Account for the minus sign. */ |
| 164 | ret++; |
| 165 | val = llabs(val); |
| 166 | } |
| 167 | |
| 168 | /* |
| 169 | * SOURCE: |
| 170 | * https://stackoverflow.com/questions/1068849/how-do-i-determine-the-number-of-digits-of-an-integer-in-c |
| 171 | * If the log10() call becomes too expensive, we could use a |
| 172 | * recursive approach to count the digits. |
| 173 | */ |
| 174 | ret += floor(log10(val)) + 1; |
| 175 | |
| 176 | end: |
| 177 | return ret; |
| 178 | } |
| 179 | |
| 180 | static |
| 181 | void print_map_section_identifier(const struct lttng_map_key_value_pair_list *kv_pair_list) |
| 182 | { |
| 183 | switch (lttng_map_key_value_pair_list_get_type(kv_pair_list)) { |
| 184 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_KERNEL: |
| 185 | _MSG("Kernel global map"); |
| 186 | break; |
| 187 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_PID_AGGREGATED: |
| 188 | _MSG("Per-PID dead app aggregated map"); |
| 189 | break; |
| 190 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_PID: |
| 191 | _MSG("PID: %"PRIu64, lttng_map_key_value_pair_list_get_identifer( |
| 192 | kv_pair_list)); |
| 193 | break; |
| 194 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_UID: |
| 195 | _MSG("UID: %"PRIu64, lttng_map_key_value_pair_list_get_identifer( |
| 196 | kv_pair_list)); |
| 197 | break; |
| 198 | default: |
| 199 | break; |
| 200 | } |
| 201 | _MSG(", CPU: "); |
| 202 | if (lttng_map_key_value_pair_list_get_summed_all_cpu(kv_pair_list)) { |
| 203 | MSG("ALL"); |
| 204 | } else { |
| 205 | MSG("%"PRIu64, lttng_map_key_value_pair_list_get_cpu(kv_pair_list)); |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | static |
| 210 | void print_map_table_header(size_t max_key_len, size_t max_val_len) |
| 211 | { |
| 212 | print_line(max_key_len, max_val_len); |
| 213 | /* Ensure the padding is nice using the `%*s` delimiter. */ |
| 214 | MSG("| %*s | %*s | %s | %s |", (int) -max_key_len, "key", |
| 215 | (int) max_val_len, "val", "uf", "of"); |
| 216 | } |
| 217 | |
| 218 | static |
| 219 | enum lttng_error_code print_one_map_section( |
| 220 | const struct lttng_map_key_value_pair_list *kv_pair_list, |
| 221 | enum lttng_buffer_type buffer_type) |
| 222 | { |
| 223 | enum lttng_error_code ret; |
| 224 | enum lttng_map_status map_status; |
| 225 | size_t longest_key_len = strlen("key"), longest_val_len = strlen("val"); |
| 226 | unsigned int i, key_value_pair_count; |
| 227 | struct lttng_dynamic_pointer_array sorted_kv_pair_list; |
| 228 | |
| 229 | lttng_dynamic_pointer_array_init(&sorted_kv_pair_list, NULL); |
| 230 | |
| 231 | map_status = lttng_map_key_value_pair_list_get_count(kv_pair_list, |
| 232 | &key_value_pair_count); |
| 233 | if (map_status != LTTNG_MAP_STATUS_OK) { |
| 234 | ERR("Failed to get key-value pair count."); |
| 235 | goto error; |
| 236 | } |
| 237 | |
| 238 | for (i = 0; i < key_value_pair_count; i++) { |
| 239 | const char *cur_key; |
| 240 | int64_t cur_val; |
| 241 | const struct lttng_map_key_value_pair *pair = |
| 242 | lttng_map_key_value_pair_list_get_at_index( |
| 243 | kv_pair_list, i); |
| 244 | |
| 245 | /* Add all key value pairs to the sorting array. */ |
| 246 | lttng_dynamic_pointer_array_add_pointer(&sorted_kv_pair_list, |
| 247 | (void *) pair); |
| 248 | |
| 249 | /* Keep track of the longest key. */ |
| 250 | lttng_map_key_value_pair_get_key(pair, &cur_key); |
| 251 | longest_key_len = max(longest_key_len, strlen(cur_key)); |
| 252 | |
| 253 | /* Keep track of the longest value. */ |
| 254 | lttng_map_key_value_pair_get_value(pair, &cur_val); |
| 255 | longest_val_len = max(longest_val_len, number_of_digit(cur_val)); |
| 256 | } |
| 257 | |
| 258 | qsort(sorted_kv_pair_list.array.buffer.data, |
| 259 | lttng_dynamic_pointer_array_get_count(&sorted_kv_pair_list), |
| 260 | sizeof(struct lttng_map_key_value_pair *), |
| 261 | compare_key_value_by_key); |
| 262 | |
| 263 | print_map_section_identifier(kv_pair_list); |
| 264 | if (key_value_pair_count == 0) { |
| 265 | MSG(" No value in the map"); |
| 266 | ret = LTTNG_OK; |
| 267 | goto end; |
| 268 | } else { |
| 269 | print_map_table_header(longest_key_len, longest_val_len); |
| 270 | |
| 271 | for (i = 0; i < key_value_pair_count; i++) { |
| 272 | print_line(longest_key_len, longest_val_len); |
| 273 | |
| 274 | print_one_map_key_value_pair( |
| 275 | lttng_dynamic_pointer_array_get_pointer( |
| 276 | &sorted_kv_pair_list, i), |
| 277 | longest_key_len, longest_val_len); |
| 278 | } |
| 279 | |
| 280 | print_line(longest_key_len, longest_val_len); |
| 281 | } |
| 282 | |
| 283 | ret = LTTNG_OK; |
| 284 | goto end; |
| 285 | |
| 286 | error: |
| 287 | ret = LTTNG_ERR_MAP_VALUES_LIST_FAIL; |
| 288 | end: |
| 289 | lttng_dynamic_pointer_array_reset(&sorted_kv_pair_list); |
| 290 | |
| 291 | return ret; |
| 292 | } |
| 293 | |
| 294 | static |
| 295 | enum lttng_error_code print_one_map(struct lttng_handle *handle, |
| 296 | const struct lttng_map *map, const char *key_filter) |
| 297 | { |
| 298 | enum lttng_error_code ret; |
| 299 | enum lttng_map_status map_status; |
| 300 | struct lttng_map_content *map_content = NULL; |
| 301 | unsigned int i, map_content_section_count; |
| 302 | enum lttng_buffer_type buffer_type; |
| 303 | struct lttng_map_query *map_query = NULL; |
| 304 | enum lttng_map_query_config_buffer query_buffer_config; |
| 305 | enum lttng_map_query_config_app_bitness query_bitness_config; |
| 306 | enum lttng_map_query_status query_status; |
| 307 | const char *map_name = NULL; |
| 308 | enum lttng_map_bitness map_bitness; |
| 309 | |
| 310 | map_status = lttng_map_get_name(map, &map_name); |
| 311 | assert(map_status == LTTNG_MAP_STATUS_OK); |
| 312 | |
| 313 | map_bitness = lttng_map_get_bitness(map); |
| 314 | |
| 315 | switch (lttng_map_get_buffer_type(map)) { |
| 316 | case LTTNG_BUFFER_GLOBAL: |
| 317 | query_buffer_config = LTTNG_MAP_QUERY_CONFIG_BUFFER_KERNEL_GLOBAL; |
| 318 | query_bitness_config = LTTNG_MAP_QUERY_CONFIG_APP_BITNESS_KERNEL; |
| 319 | break; |
| 320 | case LTTNG_BUFFER_PER_UID: |
| 321 | query_buffer_config = LTTNG_MAP_QUERY_CONFIG_BUFFER_UST_UID_ALL; |
| 322 | query_bitness_config = LTTNG_MAP_QUERY_CONFIG_APP_BITNESS_ALL; |
| 323 | break; |
| 324 | case LTTNG_BUFFER_PER_PID: |
| 325 | query_buffer_config = LTTNG_MAP_QUERY_CONFIG_BUFFER_UST_PID_ALL; |
| 326 | query_bitness_config = LTTNG_MAP_QUERY_CONFIG_APP_BITNESS_ALL; |
| 327 | break; |
| 328 | default: |
| 329 | ret = LTTNG_ERR_INVALID; |
| 330 | goto end; |
| 331 | } |
| 332 | |
| 333 | map_query = lttng_map_query_create(LTTNG_MAP_QUERY_CONFIG_CPU_ALL, |
| 334 | query_buffer_config, query_bitness_config); |
| 335 | if (!map_query) { |
| 336 | ret = LTTNG_ERR_NOMEM; |
| 337 | ERR("Creating map query"); |
| 338 | goto end; |
| 339 | } |
| 340 | |
| 341 | if (key_filter) { |
| 342 | query_status = lttng_map_query_add_key_filter(map_query, key_filter); |
| 343 | assert(query_status == LTTNG_MAP_QUERY_STATUS_OK); |
| 344 | } |
| 345 | |
| 346 | query_status = lttng_map_query_set_sum_by_cpu(map_query, true); |
| 347 | assert(query_status == LTTNG_MAP_QUERY_STATUS_OK); |
| 348 | |
| 349 | /* |
| 350 | * We don't want to aggregate all uid (or pid) together for the lttng |
| 351 | * view-map command. |
| 352 | */ |
| 353 | if (query_buffer_config == LTTNG_MAP_QUERY_CONFIG_BUFFER_UST_UID_ALL) { |
| 354 | //query_status = lttng_map_query_set_sum_by_uid(map_query, false); |
| 355 | //assert(query_status == LTTNG_MAP_QUERY_STATUS_OK); |
| 356 | } else if (query_buffer_config == LTTNG_MAP_QUERY_CONFIG_BUFFER_UST_PID_ALL) { |
| 357 | query_status = lttng_map_query_set_sum_by_pid(map_query, false); |
| 358 | assert(query_status == LTTNG_MAP_QUERY_STATUS_OK); |
| 359 | } |
| 360 | |
| 361 | /* |
| 362 | * If we have 32bits and 64bits maps, we want to aggregate both maps in |
| 363 | * a single table in the lttng view-map command. |
| 364 | */ |
| 365 | if (query_bitness_config == LTTNG_MAP_QUERY_CONFIG_APP_BITNESS_ALL) { |
| 366 | //query_status = lttng_map_query_set_sum_by_app_bitness(map_query, true); |
| 367 | //assert(query_status == LTTNG_MAP_QUERY_STATUS_OK); |
| 368 | } |
| 369 | |
| 370 | /* Fetch the key value pair_list from the sessiond */ |
| 371 | ret = lttng_list_map_content(handle, map, map_query, &map_content); |
| 372 | if (ret != LTTNG_OK) { |
| 373 | ERR("Error listing map key value pair_list: %s.", |
| 374 | lttng_strerror(-ret)); |
| 375 | goto end; |
| 376 | } |
| 377 | |
| 378 | map_status = lttng_map_content_get_count(map_content, |
| 379 | &map_content_section_count); |
| 380 | if (map_status != LTTNG_MAP_STATUS_OK) { |
| 381 | ret = LTTNG_ERR_MAP_VALUES_LIST_FAIL; |
| 382 | ERR("Failed to get map content section count."); |
| 383 | goto end; |
| 384 | } |
| 385 | |
| 386 | if (map_content_section_count == 0) { |
| 387 | DBG("Map %s is not found", map_name); |
| 388 | goto end; |
| 389 | } |
| 390 | |
| 391 | MSG("Session: '%s', map: '%s', map bitness: %d", handle->session_name, |
| 392 | map_name, map_bitness); |
| 393 | |
| 394 | buffer_type = lttng_map_content_get_buffer_type(map_content); |
| 395 | |
| 396 | for (i = 0; i < map_content_section_count; i++) { |
| 397 | const struct lttng_map_key_value_pair_list *kv_pair_list = |
| 398 | lttng_map_content_get_at_index(map_content, i); |
| 399 | |
| 400 | assert(kv_pair_list); |
| 401 | ret = print_one_map_section(kv_pair_list, buffer_type); |
| 402 | if (ret != LTTNG_OK) { |
| 403 | ERR("Error printing map section"); |
| 404 | goto end; |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | |
| 409 | ret = LTTNG_OK; |
| 410 | goto end; |
| 411 | end: |
| 412 | lttng_map_content_destroy(map_content); |
| 413 | return ret; |
| 414 | } |
| 415 | |
| 416 | static |
| 417 | int view_map(struct lttng_handle *handle, const char *desired_map_name, |
| 418 | const char *key_filter) |
| 419 | { |
| 420 | enum lttng_error_code ret; |
| 421 | struct lttng_map_list *map_list = NULL; |
| 422 | enum lttng_map_status map_status; |
| 423 | bool desired_map_found = false; |
| 424 | unsigned int i, map_count; |
| 425 | |
| 426 | DBG("Listing map(s) (%s)", desired_map_name ? : "<all>"); |
| 427 | /* |
| 428 | * Query the sessiond for a list of all the maps that match the |
| 429 | * provided map name and domain (if any). |
| 430 | */ |
| 431 | ret = lttng_list_maps(handle, &map_list); |
| 432 | if (ret != LTTNG_OK) { |
| 433 | ERR("Error getting map list"); |
| 434 | goto end; |
| 435 | } |
| 436 | |
| 437 | map_status = lttng_map_list_get_count(map_list, &map_count); |
| 438 | if (map_status != LTTNG_MAP_STATUS_OK) { |
| 439 | ERR("Error getting map list element count"); |
| 440 | ret = -1; |
| 441 | goto end; |
| 442 | } |
| 443 | |
| 444 | for (i = 0; i < map_count; i++) { |
| 445 | const struct lttng_map *map = NULL; |
| 446 | const char *map_name = NULL; |
| 447 | map = lttng_map_list_get_at_index(map_list, i); |
| 448 | if (!map) { |
| 449 | ERR("Error getting map from list: index = %u", i); |
| 450 | goto end; |
| 451 | } |
| 452 | |
| 453 | map_status = lttng_map_get_name(map, &map_name); |
| 454 | if (map_status != LTTNG_MAP_STATUS_OK) { |
| 455 | ERR("Error getting map name"); |
| 456 | ret = -1; |
| 457 | goto end; |
| 458 | } |
| 459 | |
| 460 | |
| 461 | if (desired_map_name != NULL) { |
| 462 | if (strncmp(map_name, desired_map_name, NAME_MAX) == 0) { |
| 463 | desired_map_found = true; |
| 464 | ret = print_one_map(handle, map, key_filter); |
| 465 | if (ret != LTTNG_OK) { |
| 466 | ret = -1; |
| 467 | goto end; |
| 468 | } |
| 469 | } |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | if (desired_map_name && !desired_map_found) { |
| 474 | DBG("Map %s in domain: %s (session %s)", desired_map_name, |
| 475 | lttng_strerror(-ret), handle->session_name); |
| 476 | ret = LTTNG_ERR_MAP_NOT_FOUND; |
| 477 | goto end; |
| 478 | } |
| 479 | |
| 480 | end: |
| 481 | lttng_map_list_destroy(map_list); |
| 482 | return ret; |
| 483 | } |
| 484 | |
| 485 | int cmd_view_map(int argc, const char **argv) |
| 486 | { |
| 487 | struct argpar_parse_ret argpar_parse_ret = { 0 }; |
| 488 | enum lttng_domain_type domain_type = LTTNG_DOMAIN_NONE; |
| 489 | const char *opt_map_name = NULL;; |
| 490 | char *opt_session_name = NULL, *session_name = NULL; |
| 491 | char *opt_key_filter = NULL; |
| 492 | struct lttng_domain domain; |
| 493 | struct lttng_domain *domains = NULL; |
| 494 | struct lttng_handle *handle; |
| 495 | |
| 496 | int ret, i; |
| 497 | |
| 498 | memset(&domain, 0, sizeof(domain)); |
| 499 | |
| 500 | argpar_parse_ret = argpar_parse(argc - 1, argv + 1, |
| 501 | view_map_options, true); |
| 502 | if (!argpar_parse_ret.items) { |
| 503 | ERR("%s", argpar_parse_ret.error); |
| 504 | goto error; |
| 505 | } |
| 506 | |
| 507 | for (i = 0; i < argpar_parse_ret.items->n_items; i++) { |
| 508 | struct argpar_item *item = argpar_parse_ret.items->items[i]; |
| 509 | |
| 510 | if (item->type == ARGPAR_ITEM_TYPE_OPT) { |
| 511 | struct argpar_item_opt *item_opt = |
| 512 | (struct argpar_item_opt *) item; |
| 513 | |
| 514 | switch (item_opt->descr->id) { |
| 515 | case OPT_HELP: |
| 516 | SHOW_HELP(); |
| 517 | ret = CMD_SUCCESS; |
| 518 | goto end; |
| 519 | case OPT_SESSION: |
| 520 | if (!assign_string(&opt_session_name, item_opt->arg, |
| 521 | "-s/--session")) { |
| 522 | goto error; |
| 523 | } |
| 524 | break; |
| 525 | case OPT_LIST_OPTIONS: |
| 526 | list_cmd_options_argpar(stdout, |
| 527 | view_map_options); |
| 528 | ret = CMD_SUCCESS; |
| 529 | goto end; |
| 530 | case OPT_USERSPACE: |
| 531 | if (!assign_domain_type(&domain_type, LTTNG_DOMAIN_UST)) { |
| 532 | goto error; |
| 533 | } |
| 534 | break; |
| 535 | |
| 536 | case OPT_KERNEL: |
| 537 | if (!assign_domain_type(&domain_type, LTTNG_DOMAIN_KERNEL)) { |
| 538 | goto error; |
| 539 | } |
| 540 | break; |
| 541 | case OPT_KEY: |
| 542 | if (!assign_string(&opt_key_filter, item_opt->arg, |
| 543 | "--key")) { |
| 544 | goto error; |
| 545 | } |
| 546 | break; |
| 547 | |
| 548 | default: |
| 549 | abort(); |
| 550 | } |
| 551 | |
| 552 | } else { |
| 553 | struct argpar_item_non_opt *item_non_opt = |
| 554 | (struct argpar_item_non_opt *) item; |
| 555 | |
| 556 | if (opt_map_name) { |
| 557 | ERR("Unexpected argument: %s", item_non_opt->arg); |
| 558 | goto error; |
| 559 | } |
| 560 | opt_map_name = item_non_opt->arg; |
| 561 | } |
| 562 | } |
| 563 | |
| 564 | if (!opt_map_name) { |
| 565 | ERR("Map name must be provided"); |
| 566 | goto error; |
| 567 | } |
| 568 | |
| 569 | if (!opt_session_name) { |
| 570 | DBG("No session name provided, print maps of the default session"); |
| 571 | session_name = get_session_name(); |
| 572 | if (session_name == NULL) { |
| 573 | goto error; |
| 574 | } |
| 575 | } else { |
| 576 | session_name = opt_session_name; |
| 577 | } |
| 578 | |
| 579 | domain.type = domain_type; |
| 580 | handle = lttng_create_handle(session_name, &domain); |
| 581 | if (handle == NULL) { |
| 582 | ret = CMD_FATAL; |
| 583 | goto end; |
| 584 | } |
| 585 | |
| 586 | if (domain.type != LTTNG_DOMAIN_NONE) { |
| 587 | /* Print maps of the given domain. */ |
| 588 | ret = view_map(handle, opt_map_name, opt_key_filter); |
| 589 | if (ret != LTTNG_OK) { |
| 590 | goto error; |
| 591 | } |
| 592 | } else { |
| 593 | int i, nb_domain; |
| 594 | bool found_one_map = false; |
| 595 | |
| 596 | /* We want all domain(s) */ |
| 597 | nb_domain = lttng_list_domains(session_name, &domains); |
| 598 | if (nb_domain < 0) { |
| 599 | ret = CMD_ERROR; |
| 600 | ERR("%s", lttng_strerror(nb_domain)); |
| 601 | goto end; |
| 602 | } |
| 603 | |
| 604 | for (i = 0; i < nb_domain; i++) { |
| 605 | /* Clean handle before creating a new one */ |
| 606 | if (handle) { |
| 607 | lttng_destroy_handle(handle); |
| 608 | } |
| 609 | |
| 610 | handle = lttng_create_handle(session_name, &domains[i]); |
| 611 | if (handle == NULL) { |
| 612 | ret = CMD_FATAL; |
| 613 | goto end; |
| 614 | } |
| 615 | |
| 616 | ret = view_map(handle, opt_map_name, opt_key_filter); |
| 617 | |
| 618 | if (ret == LTTNG_OK) { |
| 619 | found_one_map = true; |
| 620 | } else if (ret == LTTNG_ERR_MAP_NOT_FOUND) { |
| 621 | DBG("Map not found in the current domain"); |
| 622 | continue; |
| 623 | } else { |
| 624 | goto error; |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | if (!found_one_map) { |
| 629 | ERR("Map %s not found on any of the domains", opt_map_name); |
| 630 | goto error; |
| 631 | |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | ret = CMD_SUCCESS; |
| 636 | goto end; |
| 637 | error: |
| 638 | ret = CMD_ERROR; |
| 639 | |
| 640 | end: |
| 641 | if (!opt_session_name && session_name) { |
| 642 | free(session_name); |
| 643 | } |
| 644 | |
| 645 | if (opt_key_filter) { |
| 646 | free(opt_key_filter); |
| 647 | } |
| 648 | |
| 649 | argpar_parse_ret_fini(&argpar_parse_ret); |
| 650 | return ret; |
| 651 | } |