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| 1 // Copyright (c) 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/trace_event/trace_config.h" | |
| 6 | |
| 7 #include "base/json/json_reader.h" | |
| 8 #include "base/json/json_writer.h" | |
| 9 #include "base/strings/pattern.h" | |
| 10 #include "base/strings/string_split.h" | |
| 11 #include "base/strings/string_tokenizer.h" | |
| 12 #include "base/strings/stringprintf.h" | |
| 13 #include "base/trace_event/trace_event.h" | |
| 14 | |
| 15 namespace base { | |
| 16 namespace trace_event { | |
| 17 | |
| 18 namespace { | |
| 19 | |
| 20 // String options that can be used to initialize TraceOptions. | |
| 21 const char kRecordUntilFull[] = "record-until-full"; | |
| 22 const char kRecordContinuously[] = "record-continuously"; | |
| 23 const char kRecordAsMuchAsPossible[] = "record-as-much-as-possible"; | |
| 24 const char kTraceToConsole[] = "trace-to-console"; | |
| 25 const char kEnableSampling[] = "enable-sampling"; | |
| 26 const char kEnableSystrace[] = "enable-systrace"; | |
| 27 const char kEnableArgumentFilter[] = "enable-argument-filter"; | |
| 28 | |
| 29 // String parameters that can be used to parse the trace config string. | |
| 30 const char kRecordModeParam[] = "record_mode"; | |
| 31 const char kEnableSamplingParam[] = "enable_sampling"; | |
| 32 const char kEnableSystraceParam[] = "enable_systrace"; | |
| 33 const char kEnableArgumentFilterParam[] = "enable_argument_filter"; | |
| 34 const char kIncludedCategoriesParam[] = "included_categories"; | |
| 35 const char kExcludedCategoriesParam[] = "excluded_categories"; | |
| 36 const char kSyntheticDelaysParam[] = "synthetic_delays"; | |
| 37 | |
| 38 const char kSyntheticDelayCategoryFilterPrefix[] = "DELAY("; | |
| 39 | |
| 40 } // namespace | |
| 41 | |
| 42 TraceConfig::TraceConfig() { | |
| 43 InitializeDefault(); | |
| 44 } | |
| 45 | |
| 46 TraceConfig::TraceConfig(const std::string& category_filter_string, | |
| 47 const std::string& trace_options_string) { | |
| 48 InitializeFromStrings(category_filter_string, trace_options_string); | |
| 49 } | |
| 50 | |
| 51 TraceConfig::TraceConfig(const std::string& category_filter_string, | |
| 52 TraceRecordMode record_mode) { | |
| 53 std::string trace_options_string; | |
| 54 switch (record_mode) { | |
| 55 case RECORD_UNTIL_FULL: | |
| 56 trace_options_string = kRecordUntilFull; | |
| 57 break; | |
| 58 case RECORD_CONTINUOUSLY: | |
| 59 trace_options_string = kRecordContinuously; | |
| 60 break; | |
| 61 case RECORD_AS_MUCH_AS_POSSIBLE: | |
| 62 trace_options_string = kRecordAsMuchAsPossible; | |
| 63 break; | |
| 64 case ECHO_TO_CONSOLE: | |
| 65 trace_options_string = kTraceToConsole; | |
| 66 break; | |
| 67 default: | |
| 68 NOTREACHED(); | |
| 69 } | |
| 70 InitializeFromStrings(category_filter_string, trace_options_string); | |
| 71 } | |
| 72 | |
| 73 TraceConfig::TraceConfig(const std::string& config_string) { | |
| 74 if (!config_string.empty()) | |
| 75 InitializeFromConfigString(config_string); | |
| 76 else | |
| 77 InitializeDefault(); | |
| 78 } | |
| 79 | |
| 80 TraceConfig::TraceConfig(const TraceConfig& tc) | |
| 81 : record_mode_(tc.record_mode_), | |
| 82 enable_sampling_(tc.enable_sampling_), | |
| 83 enable_systrace_(tc.enable_systrace_), | |
| 84 enable_argument_filter_(tc.enable_argument_filter_), | |
| 85 included_categories_(tc.included_categories_), | |
| 86 disabled_categories_(tc.disabled_categories_), | |
| 87 excluded_categories_(tc.excluded_categories_), | |
| 88 synthetic_delays_(tc.synthetic_delays_) { | |
| 89 } | |
| 90 | |
| 91 TraceConfig::~TraceConfig() { | |
| 92 } | |
| 93 | |
| 94 TraceConfig& TraceConfig::operator=(const TraceConfig& rhs) { | |
| 95 if (this == &rhs) | |
| 96 return *this; | |
| 97 | |
| 98 record_mode_ = rhs.record_mode_; | |
| 99 enable_sampling_ = rhs.enable_sampling_; | |
| 100 enable_systrace_ = rhs.enable_systrace_; | |
| 101 enable_argument_filter_ = rhs.enable_argument_filter_; | |
| 102 included_categories_ = rhs.included_categories_; | |
| 103 disabled_categories_ = rhs.disabled_categories_; | |
| 104 excluded_categories_ = rhs.excluded_categories_; | |
| 105 synthetic_delays_ = rhs.synthetic_delays_; | |
| 106 return *this; | |
| 107 } | |
| 108 | |
| 109 const TraceConfig::StringList& TraceConfig::GetSyntheticDelayValues() const { | |
| 110 return synthetic_delays_; | |
| 111 } | |
| 112 | |
| 113 std::string TraceConfig::ToString() const { | |
| 114 base::DictionaryValue dict; | |
| 115 ToDict(dict); | |
| 116 | |
| 117 std::string json; | |
| 118 base::JSONWriter::Write(dict, &json); | |
| 119 | |
| 120 return json; | |
| 121 } | |
| 122 | |
| 123 std::string TraceConfig::ToCategoryFilterString() const { | |
| 124 std::string filter_string; | |
| 125 WriteCategoryFilterString(included_categories_, &filter_string, true); | |
| 126 WriteCategoryFilterString(disabled_categories_, &filter_string, true); | |
| 127 WriteCategoryFilterString(excluded_categories_, &filter_string, false); | |
| 128 WriteCategoryFilterString(synthetic_delays_, &filter_string); | |
| 129 return filter_string; | |
| 130 } | |
| 131 | |
| 132 bool TraceConfig::IsCategoryGroupEnabled( | |
| 133 const char* category_group_name) const { | |
| 134 // TraceLog should call this method only as part of enabling/disabling | |
| 135 // categories. | |
| 136 | |
| 137 bool had_enabled_by_default = false; | |
| 138 DCHECK(category_group_name); | |
| 139 CStringTokenizer category_group_tokens( | |
| 140 category_group_name, category_group_name + strlen(category_group_name), | |
| 141 ","); | |
| 142 while (category_group_tokens.GetNext()) { | |
| 143 std::string category_group_token = category_group_tokens.token(); | |
| 144 // Don't allow empty tokens, nor tokens with leading or trailing space. | |
| 145 DCHECK(!TraceConfig::IsEmptyOrContainsLeadingOrTrailingWhitespace( | |
| 146 category_group_token)) | |
| 147 << "Disallowed category string"; | |
| 148 if (IsCategoryEnabled(category_group_token.c_str())) { | |
| 149 return true; | |
| 150 } | |
| 151 if (!base::MatchPattern(category_group_token.c_str(), | |
| 152 TRACE_DISABLED_BY_DEFAULT("*"))) | |
| 153 had_enabled_by_default = true; | |
| 154 } | |
| 155 // Do a second pass to check for explicitly disabled categories | |
| 156 // (those explicitly enabled have priority due to first pass). | |
| 157 category_group_tokens.Reset(); | |
| 158 bool category_group_disabled = false; | |
| 159 while (category_group_tokens.GetNext()) { | |
| 160 std::string category_group_token = category_group_tokens.token(); | |
| 161 for (StringList::const_iterator ci = excluded_categories_.begin(); | |
| 162 ci != excluded_categories_.end(); | |
| 163 ++ci) { | |
| 164 if (base::MatchPattern(category_group_token.c_str(), ci->c_str())) { | |
| 165 // Current token of category_group_name is present in excluded_list. | |
| 166 // Flag the exclusion and proceed further to check if any of the | |
| 167 // remaining categories of category_group_name is not present in the | |
| 168 // excluded_ list. | |
| 169 category_group_disabled = true; | |
| 170 break; | |
| 171 } | |
| 172 // One of the category of category_group_name is not present in | |
| 173 // excluded_ list. So, it has to be included_ list. Enable the | |
| 174 // category_group_name for recording. | |
| 175 category_group_disabled = false; | |
| 176 } | |
| 177 // One of the categories present in category_group_name is not present in | |
| 178 // excluded_ list. Implies this category_group_name group can be enabled | |
| 179 // for recording, since one of its groups is enabled for recording. | |
| 180 if (!category_group_disabled) | |
| 181 break; | |
| 182 } | |
| 183 // If the category group is not excluded, and there are no included patterns | |
| 184 // we consider this category group enabled, as long as it had categories | |
| 185 // other than disabled-by-default. | |
| 186 return !category_group_disabled && | |
| 187 included_categories_.empty() && had_enabled_by_default; | |
| 188 } | |
| 189 | |
| 190 void TraceConfig::Merge(const TraceConfig& config) { | |
| 191 if (record_mode_ != config.record_mode_ | |
| 192 || enable_sampling_ != config.enable_sampling_ | |
| 193 || enable_systrace_ != config.enable_systrace_ | |
| 194 || enable_argument_filter_ != config.enable_argument_filter_) { | |
| 195 DLOG(ERROR) << "Attempting to merge trace config with a different " | |
| 196 << "set of options."; | |
| 197 } | |
| 198 | |
| 199 // Keep included patterns only if both filters have an included entry. | |
| 200 // Otherwise, one of the filter was specifying "*" and we want to honor the | |
| 201 // broadest filter. | |
| 202 if (HasIncludedPatterns() && config.HasIncludedPatterns()) { | |
| 203 included_categories_.insert(included_categories_.end(), | |
| 204 config.included_categories_.begin(), | |
| 205 config.included_categories_.end()); | |
| 206 } else { | |
| 207 included_categories_.clear(); | |
| 208 } | |
| 209 | |
| 210 disabled_categories_.insert(disabled_categories_.end(), | |
| 211 config.disabled_categories_.begin(), | |
| 212 config.disabled_categories_.end()); | |
| 213 excluded_categories_.insert(excluded_categories_.end(), | |
| 214 config.excluded_categories_.begin(), | |
| 215 config.excluded_categories_.end()); | |
| 216 synthetic_delays_.insert(synthetic_delays_.end(), | |
| 217 config.synthetic_delays_.begin(), | |
| 218 config.synthetic_delays_.end()); | |
| 219 } | |
| 220 | |
| 221 void TraceConfig::Clear() { | |
| 222 record_mode_ = RECORD_UNTIL_FULL; | |
| 223 enable_sampling_ = false; | |
| 224 enable_systrace_ = false; | |
| 225 enable_argument_filter_ = false; | |
| 226 included_categories_.clear(); | |
| 227 disabled_categories_.clear(); | |
| 228 excluded_categories_.clear(); | |
| 229 synthetic_delays_.clear(); | |
| 230 } | |
| 231 | |
| 232 void TraceConfig::InitializeDefault() { | |
| 233 record_mode_ = RECORD_UNTIL_FULL; | |
| 234 enable_sampling_ = false; | |
| 235 enable_systrace_ = false; | |
| 236 enable_argument_filter_ = false; | |
| 237 excluded_categories_.push_back("*Debug"); | |
| 238 excluded_categories_.push_back("*Test"); | |
| 239 } | |
| 240 | |
| 241 void TraceConfig::InitializeFromConfigString(const std::string& config_string) { | |
| 242 scoped_ptr<base::Value> value(base::JSONReader::Read(config_string)); | |
| 243 if (!value || !value->IsType(base::Value::TYPE_DICTIONARY)) { | |
| 244 InitializeDefault(); | |
| 245 return; | |
| 246 } | |
| 247 scoped_ptr<base::DictionaryValue> dict( | |
| 248 static_cast<base::DictionaryValue*>(value.release())); | |
| 249 | |
| 250 record_mode_ = RECORD_UNTIL_FULL; | |
| 251 std::string record_mode; | |
| 252 if (dict->GetString(kRecordModeParam, &record_mode)) { | |
| 253 if (record_mode == kRecordUntilFull) { | |
| 254 record_mode_ = RECORD_UNTIL_FULL; | |
| 255 } else if (record_mode == kRecordContinuously) { | |
| 256 record_mode_ = RECORD_CONTINUOUSLY; | |
| 257 } else if (record_mode == kTraceToConsole) { | |
| 258 record_mode_ = ECHO_TO_CONSOLE; | |
| 259 } else if (record_mode == kRecordAsMuchAsPossible) { | |
| 260 record_mode_ = RECORD_AS_MUCH_AS_POSSIBLE; | |
| 261 } | |
| 262 } | |
| 263 | |
| 264 bool enable_sampling; | |
| 265 if (!dict->GetBoolean(kEnableSamplingParam, &enable_sampling)) | |
| 266 enable_sampling_ = false; | |
| 267 else | |
| 268 enable_sampling_ = enable_sampling; | |
| 269 | |
| 270 bool enable_systrace; | |
| 271 if (!dict->GetBoolean(kEnableSystraceParam, &enable_systrace)) | |
| 272 enable_systrace_ = false; | |
| 273 else | |
| 274 enable_systrace_ = enable_systrace; | |
| 275 | |
| 276 bool enable_argument_filter; | |
| 277 if (!dict->GetBoolean(kEnableArgumentFilterParam, &enable_argument_filter)) | |
| 278 enable_argument_filter_ = false; | |
| 279 else | |
| 280 enable_argument_filter_ = enable_argument_filter; | |
| 281 | |
| 282 | |
| 283 base::ListValue* category_list = NULL; | |
| 284 if (dict->GetList(kIncludedCategoriesParam, &category_list)) | |
| 285 SetCategoriesFromIncludedList(*category_list); | |
| 286 if (dict->GetList(kExcludedCategoriesParam, &category_list)) | |
| 287 SetCategoriesFromExcludedList(*category_list); | |
| 288 if (dict->GetList(kSyntheticDelaysParam, &category_list)) | |
| 289 SetSyntheticDelaysFromList(*category_list); | |
| 290 } | |
| 291 | |
| 292 void TraceConfig::InitializeFromStrings( | |
| 293 const std::string& category_filter_string, | |
| 294 const std::string& trace_options_string) { | |
| 295 if (!category_filter_string.empty()) { | |
| 296 std::vector<std::string> split; | |
| 297 std::vector<std::string>::iterator iter; | |
| 298 base::SplitString(category_filter_string, ',', &split); | |
| 299 for (iter = split.begin(); iter != split.end(); ++iter) { | |
| 300 std::string category = *iter; | |
| 301 // Ignore empty categories. | |
| 302 if (category.empty()) | |
| 303 continue; | |
| 304 // Synthetic delays are of the form 'DELAY(delay;option;option;...)'. | |
| 305 if (category.find(kSyntheticDelayCategoryFilterPrefix) == 0 && | |
| 306 category.at(category.size() - 1) == ')') { | |
| 307 category = category.substr( | |
| 308 strlen(kSyntheticDelayCategoryFilterPrefix), | |
| 309 category.size() - strlen(kSyntheticDelayCategoryFilterPrefix) - 1); | |
| 310 size_t name_length = category.find(';'); | |
| 311 if (name_length != std::string::npos && name_length > 0 && | |
| 312 name_length != category.size() - 1) { | |
| 313 synthetic_delays_.push_back(category); | |
| 314 } | |
| 315 } else if (category.at(0) == '-') { | |
| 316 // Excluded categories start with '-'. | |
| 317 // Remove '-' from category string. | |
| 318 category = category.substr(1); | |
| 319 excluded_categories_.push_back(category); | |
| 320 } else if (category.compare(0, strlen(TRACE_DISABLED_BY_DEFAULT("")), | |
| 321 TRACE_DISABLED_BY_DEFAULT("")) == 0) { | |
| 322 disabled_categories_.push_back(category); | |
| 323 } else { | |
| 324 included_categories_.push_back(category); | |
| 325 } | |
| 326 } | |
| 327 } | |
| 328 | |
| 329 record_mode_ = RECORD_UNTIL_FULL; | |
| 330 enable_sampling_ = false; | |
| 331 enable_systrace_ = false; | |
| 332 enable_argument_filter_ = false; | |
| 333 if(!trace_options_string.empty()) { | |
| 334 std::vector<std::string> split; | |
| 335 std::vector<std::string>::iterator iter; | |
| 336 base::SplitString(trace_options_string, ',', &split); | |
| 337 for (iter = split.begin(); iter != split.end(); ++iter) { | |
| 338 if (*iter == kRecordUntilFull) { | |
| 339 record_mode_ = RECORD_UNTIL_FULL; | |
| 340 } else if (*iter == kRecordContinuously) { | |
| 341 record_mode_ = RECORD_CONTINUOUSLY; | |
| 342 } else if (*iter == kTraceToConsole) { | |
| 343 record_mode_ = ECHO_TO_CONSOLE; | |
| 344 } else if (*iter == kRecordAsMuchAsPossible) { | |
| 345 record_mode_ = RECORD_AS_MUCH_AS_POSSIBLE; | |
| 346 } else if (*iter == kEnableSampling) { | |
| 347 enable_sampling_ = true; | |
| 348 } else if (*iter == kEnableSystrace) { | |
| 349 enable_systrace_ = true; | |
| 350 } else if (*iter == kEnableArgumentFilter) { | |
| 351 enable_argument_filter_ = true; | |
| 352 } | |
| 353 } | |
| 354 } | |
| 355 } | |
| 356 | |
| 357 void TraceConfig::SetCategoriesFromIncludedList( | |
| 358 const base::ListValue& included_list) { | |
| 359 included_categories_.clear(); | |
| 360 for (size_t i = 0; i < included_list.GetSize(); ++i) { | |
| 361 std::string category; | |
| 362 if (!included_list.GetString(i, &category)) | |
| 363 continue; | |
| 364 if (category.compare(0, strlen(TRACE_DISABLED_BY_DEFAULT("")), | |
| 365 TRACE_DISABLED_BY_DEFAULT("")) == 0) { | |
| 366 disabled_categories_.push_back(category); | |
| 367 } else { | |
| 368 included_categories_.push_back(category); | |
| 369 } | |
| 370 } | |
| 371 } | |
| 372 | |
| 373 void TraceConfig::SetCategoriesFromExcludedList( | |
| 374 const base::ListValue& excluded_list) { | |
| 375 excluded_categories_.clear(); | |
| 376 for (size_t i = 0; i < excluded_list.GetSize(); ++i) { | |
| 377 std::string category; | |
| 378 if (excluded_list.GetString(i, &category)) | |
| 379 excluded_categories_.push_back(category); | |
| 380 } | |
| 381 } | |
| 382 | |
| 383 void TraceConfig::SetSyntheticDelaysFromList(const base::ListValue& list) { | |
| 384 synthetic_delays_.clear(); | |
| 385 for (size_t i = 0; i < list.GetSize(); ++i) { | |
| 386 std::string delay; | |
| 387 if (!list.GetString(i, &delay)) | |
| 388 continue; | |
| 389 // Synthetic delays are of the form "delay;option;option;...". | |
| 390 size_t name_length = delay.find(';'); | |
| 391 if (name_length != std::string::npos && name_length > 0 && | |
| 392 name_length != delay.size() - 1) { | |
| 393 synthetic_delays_.push_back(delay); | |
| 394 } | |
| 395 } | |
| 396 } | |
| 397 | |
| 398 void TraceConfig::AddCategoryToDict(base::DictionaryValue& dict, | |
| 399 const char* param, | |
| 400 const StringList& categories) const { | |
| 401 if (categories.empty()) | |
| 402 return; | |
| 403 | |
| 404 scoped_ptr<base::ListValue> list(new base::ListValue()); | |
| 405 for (StringList::const_iterator ci = categories.begin(); | |
| 406 ci != categories.end(); | |
| 407 ++ci) { | |
| 408 list->AppendString(*ci); | |
| 409 } | |
| 410 | |
| 411 dict.Set(param, list.Pass()); | |
| 412 } | |
| 413 | |
| 414 void TraceConfig::ToDict(base::DictionaryValue& dict) const { | |
| 415 switch (record_mode_) { | |
| 416 case RECORD_UNTIL_FULL: | |
| 417 dict.SetString(kRecordModeParam, kRecordUntilFull); | |
| 418 break; | |
| 419 case RECORD_CONTINUOUSLY: | |
| 420 dict.SetString(kRecordModeParam, kRecordContinuously); | |
| 421 break; | |
| 422 case RECORD_AS_MUCH_AS_POSSIBLE: | |
| 423 dict.SetString(kRecordModeParam, kRecordAsMuchAsPossible); | |
| 424 break; | |
| 425 case ECHO_TO_CONSOLE: | |
| 426 dict.SetString(kRecordModeParam, kTraceToConsole); | |
| 427 break; | |
| 428 default: | |
| 429 NOTREACHED(); | |
| 430 } | |
| 431 | |
| 432 if (enable_sampling_) | |
| 433 dict.SetBoolean(kEnableSamplingParam, true); | |
| 434 else | |
| 435 dict.SetBoolean(kEnableSamplingParam, false); | |
| 436 | |
| 437 if (enable_systrace_) | |
| 438 dict.SetBoolean(kEnableSystraceParam, true); | |
| 439 else | |
| 440 dict.SetBoolean(kEnableSystraceParam, false); | |
| 441 | |
| 442 if (enable_argument_filter_) | |
| 443 dict.SetBoolean(kEnableArgumentFilterParam, true); | |
| 444 else | |
| 445 dict.SetBoolean(kEnableArgumentFilterParam, false); | |
| 446 | |
| 447 StringList categories(included_categories_); | |
| 448 categories.insert(categories.end(), | |
| 449 disabled_categories_.begin(), | |
| 450 disabled_categories_.end()); | |
| 451 AddCategoryToDict(dict, kIncludedCategoriesParam, categories); | |
| 452 AddCategoryToDict(dict, kExcludedCategoriesParam, excluded_categories_); | |
| 453 AddCategoryToDict(dict, kSyntheticDelaysParam, synthetic_delays_); | |
| 454 } | |
| 455 | |
| 456 std::string TraceConfig::ToTraceOptionsString() const { | |
| 457 std::string ret; | |
| 458 switch (record_mode_) { | |
| 459 case RECORD_UNTIL_FULL: | |
| 460 ret = kRecordUntilFull; | |
| 461 break; | |
| 462 case RECORD_CONTINUOUSLY: | |
| 463 ret = kRecordContinuously; | |
| 464 break; | |
| 465 case RECORD_AS_MUCH_AS_POSSIBLE: | |
| 466 ret = kRecordAsMuchAsPossible; | |
| 467 break; | |
| 468 case ECHO_TO_CONSOLE: | |
| 469 ret = kTraceToConsole; | |
| 470 break; | |
| 471 default: | |
| 472 NOTREACHED(); | |
| 473 } | |
| 474 if (enable_sampling_) | |
| 475 ret = ret + "," + kEnableSampling; | |
| 476 if (enable_systrace_) | |
| 477 ret = ret + "," + kEnableSystrace; | |
| 478 if (enable_argument_filter_) | |
| 479 ret = ret + "," + kEnableArgumentFilter; | |
| 480 return ret; | |
| 481 } | |
| 482 | |
| 483 void TraceConfig::WriteCategoryFilterString(const StringList& values, | |
| 484 std::string* out, | |
| 485 bool included) const { | |
| 486 bool prepend_comma = !out->empty(); | |
| 487 int token_cnt = 0; | |
| 488 for (StringList::const_iterator ci = values.begin(); | |
| 489 ci != values.end(); ++ci) { | |
| 490 if (token_cnt > 0 || prepend_comma) | |
| 491 StringAppendF(out, ","); | |
| 492 StringAppendF(out, "%s%s", (included ? "" : "-"), ci->c_str()); | |
| 493 ++token_cnt; | |
| 494 } | |
| 495 } | |
| 496 | |
| 497 void TraceConfig::WriteCategoryFilterString(const StringList& delays, | |
| 498 std::string* out) const { | |
| 499 bool prepend_comma = !out->empty(); | |
| 500 int token_cnt = 0; | |
| 501 for (StringList::const_iterator ci = delays.begin(); | |
| 502 ci != delays.end(); ++ci) { | |
| 503 if (token_cnt > 0 || prepend_comma) | |
| 504 StringAppendF(out, ","); | |
| 505 StringAppendF(out, "%s%s)", kSyntheticDelayCategoryFilterPrefix, | |
| 506 ci->c_str()); | |
| 507 ++token_cnt; | |
| 508 } | |
| 509 } | |
| 510 | |
| 511 bool TraceConfig::IsCategoryEnabled(const char* category_name) const { | |
| 512 StringList::const_iterator ci; | |
| 513 | |
| 514 // Check the disabled- filters and the disabled-* wildcard first so that a | |
| 515 // "*" filter does not include the disabled. | |
| 516 for (ci = disabled_categories_.begin(); | |
| 517 ci != disabled_categories_.end(); | |
| 518 ++ci) { | |
| 519 if (base::MatchPattern(category_name, ci->c_str())) | |
| 520 return true; | |
| 521 } | |
| 522 | |
| 523 if (base::MatchPattern(category_name, TRACE_DISABLED_BY_DEFAULT("*"))) | |
| 524 return false; | |
| 525 | |
| 526 for (ci = included_categories_.begin(); | |
| 527 ci != included_categories_.end(); | |
| 528 ++ci) { | |
| 529 if (base::MatchPattern(category_name, ci->c_str())) | |
| 530 return true; | |
| 531 } | |
| 532 | |
| 533 return false; | |
| 534 } | |
| 535 | |
| 536 bool TraceConfig::IsEmptyOrContainsLeadingOrTrailingWhitespace( | |
| 537 const std::string& str) { | |
| 538 return str.empty() || | |
| 539 str.at(0) == ' ' || | |
| 540 str.at(str.length() - 1) == ' '; | |
| 541 } | |
| 542 | |
| 543 bool TraceConfig::HasIncludedPatterns() const { | |
| 544 return !included_categories_.empty(); | |
| 545 } | |
| 546 | |
| 547 } // namespace trace_event | |
| 548 } // namespace base | |
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