jbates@chromium.org | e9b2d8b | 2012-01-13 06:41:54 +0900 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 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/test/trace_event_analyzer.h" |
| 6 | |
| 7 | #include <algorithm> |
| 8 | #include <math.h> |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 9 | #include <set> |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 10 | |
| 11 | #include "base/json/json_reader.h" |
| 12 | #include "base/memory/scoped_ptr.h" |
| 13 | #include "base/values.h" |
| 14 | |
| 15 | namespace trace_analyzer { |
| 16 | |
| 17 | // TraceEvent |
| 18 | |
| 19 | TraceEvent::TraceEvent() |
| 20 | : thread(0, 0), |
| 21 | timestamp(0), |
wangxianzhu@chromium.org | f17afbd | 2013-10-21 12:51:13 +0900 | [diff] [blame] | 22 | duration(0), |
jbates@chromium.org | 8bb0ee6 | 2011-12-03 02:17:38 +0900 | [diff] [blame] | 23 | phase(TRACE_EVENT_PHASE_BEGIN), |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 24 | other_event(NULL) { |
| 25 | } |
| 26 | |
| 27 | TraceEvent::~TraceEvent() { |
| 28 | } |
| 29 | |
| 30 | bool TraceEvent::SetFromJSON(const base::Value* event_value) { |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 31 | if (event_value->GetType() != base::Value::TYPE_DICTIONARY) { |
| 32 | LOG(ERROR) << "Value must be TYPE_DICTIONARY"; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 33 | return false; |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 34 | } |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 35 | const base::DictionaryValue* dictionary = |
| 36 | static_cast<const base::DictionaryValue*>(event_value); |
| 37 | |
| 38 | std::string phase_str; |
vabr@chromium.org | 7456243 | 2012-07-28 07:27:11 +0900 | [diff] [blame] | 39 | const base::DictionaryValue* args = NULL; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 40 | |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 41 | if (!dictionary->GetString("ph", &phase_str)) { |
| 42 | LOG(ERROR) << "ph is missing from TraceEvent JSON"; |
| 43 | return false; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 44 | } |
| 45 | |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 46 | phase = *phase_str.data(); |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 47 | |
wangxianzhu@chromium.org | f17afbd | 2013-10-21 12:51:13 +0900 | [diff] [blame] | 48 | bool may_have_duration = (phase == TRACE_EVENT_PHASE_COMPLETE); |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 49 | bool require_origin = (phase != TRACE_EVENT_PHASE_METADATA); |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 50 | bool require_id = (phase == TRACE_EVENT_PHASE_ASYNC_BEGIN || |
simonjam@chromium.org | 7611bfd | 2013-10-24 11:44:11 +0900 | [diff] [blame] | 51 | phase == TRACE_EVENT_PHASE_ASYNC_STEP_INTO || |
| 52 | phase == TRACE_EVENT_PHASE_ASYNC_STEP_PAST || |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 53 | phase == TRACE_EVENT_PHASE_ASYNC_END); |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 54 | |
| 55 | if (require_origin && !dictionary->GetInteger("pid", &thread.process_id)) { |
| 56 | LOG(ERROR) << "pid is missing from TraceEvent JSON"; |
| 57 | return false; |
| 58 | } |
| 59 | if (require_origin && !dictionary->GetInteger("tid", &thread.thread_id)) { |
| 60 | LOG(ERROR) << "tid is missing from TraceEvent JSON"; |
| 61 | return false; |
| 62 | } |
| 63 | if (require_origin && !dictionary->GetDouble("ts", ×tamp)) { |
| 64 | LOG(ERROR) << "ts is missing from TraceEvent JSON"; |
| 65 | return false; |
| 66 | } |
wangxianzhu@chromium.org | f17afbd | 2013-10-21 12:51:13 +0900 | [diff] [blame] | 67 | if (may_have_duration) { |
| 68 | dictionary->GetDouble("dur", &duration); |
| 69 | } |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 70 | if (!dictionary->GetString("cat", &category)) { |
| 71 | LOG(ERROR) << "cat is missing from TraceEvent JSON"; |
| 72 | return false; |
| 73 | } |
| 74 | if (!dictionary->GetString("name", &name)) { |
| 75 | LOG(ERROR) << "name is missing from TraceEvent JSON"; |
| 76 | return false; |
| 77 | } |
| 78 | if (!dictionary->GetDictionary("args", &args)) { |
| 79 | LOG(ERROR) << "args is missing from TraceEvent JSON"; |
| 80 | return false; |
| 81 | } |
| 82 | if (require_id && !dictionary->GetString("id", &id)) { |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 83 | LOG(ERROR) << "id is missing from ASYNC_BEGIN/ASYNC_END TraceEvent JSON"; |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 84 | return false; |
| 85 | } |
| 86 | |
| 87 | // For each argument, copy the type and create a trace_analyzer::TraceValue. |
pneubeck@chromium.org | a2fbefc | 2013-01-18 23:43:27 +0900 | [diff] [blame] | 88 | for (base::DictionaryValue::Iterator it(*args); !it.IsAtEnd(); |
| 89 | it.Advance()) { |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 90 | std::string str; |
| 91 | bool boolean = false; |
| 92 | int int_num = 0; |
| 93 | double double_num = 0.0; |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 94 | if (it.value().GetAsString(&str)) { |
pneubeck@chromium.org | a2fbefc | 2013-01-18 23:43:27 +0900 | [diff] [blame] | 95 | arg_strings[it.key()] = str; |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 96 | } else if (it.value().GetAsInteger(&int_num)) { |
pneubeck@chromium.org | a2fbefc | 2013-01-18 23:43:27 +0900 | [diff] [blame] | 97 | arg_numbers[it.key()] = static_cast<double>(int_num); |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 98 | } else if (it.value().GetAsBoolean(&boolean)) { |
pneubeck@chromium.org | a2fbefc | 2013-01-18 23:43:27 +0900 | [diff] [blame] | 99 | arg_numbers[it.key()] = static_cast<double>(boolean ? 1 : 0); |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 100 | } else if (it.value().GetAsDouble(&double_num)) { |
pneubeck@chromium.org | a2fbefc | 2013-01-18 23:43:27 +0900 | [diff] [blame] | 101 | arg_numbers[it.key()] = double_num; |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 102 | } else { |
ernstm@chromium.org | 896c50e | 2013-08-15 16:20:29 +0900 | [diff] [blame] | 103 | LOG(WARNING) << "Value type of argument is not supported: " << |
pneubeck@chromium.org | a2fbefc | 2013-01-18 23:43:27 +0900 | [diff] [blame] | 104 | static_cast<int>(it.value().GetType()); |
ernstm@chromium.org | 896c50e | 2013-08-15 16:20:29 +0900 | [diff] [blame] | 105 | continue; // Skip non-supported arguments. |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 106 | } |
| 107 | } |
| 108 | |
| 109 | return true; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 110 | } |
| 111 | |
jbates@chromium.org | f8732bd | 2011-11-05 02:10:12 +0900 | [diff] [blame] | 112 | double TraceEvent::GetAbsTimeToOtherEvent() const { |
| 113 | return fabs(other_event->timestamp - timestamp); |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 114 | } |
| 115 | |
| 116 | bool TraceEvent::GetArgAsString(const std::string& name, |
| 117 | std::string* arg) const { |
| 118 | std::map<std::string, std::string>::const_iterator i = arg_strings.find(name); |
| 119 | if (i != arg_strings.end()) { |
| 120 | *arg = i->second; |
| 121 | return true; |
| 122 | } |
| 123 | return false; |
| 124 | } |
| 125 | |
| 126 | bool TraceEvent::GetArgAsNumber(const std::string& name, |
| 127 | double* arg) const { |
| 128 | std::map<std::string, double>::const_iterator i = arg_numbers.find(name); |
| 129 | if (i != arg_numbers.end()) { |
| 130 | *arg = i->second; |
| 131 | return true; |
| 132 | } |
| 133 | return false; |
| 134 | } |
| 135 | |
jbates@chromium.org | f8732bd | 2011-11-05 02:10:12 +0900 | [diff] [blame] | 136 | bool TraceEvent::HasStringArg(const std::string& name) const { |
| 137 | return (arg_strings.find(name) != arg_strings.end()); |
| 138 | } |
| 139 | |
| 140 | bool TraceEvent::HasNumberArg(const std::string& name) const { |
| 141 | return (arg_numbers.find(name) != arg_numbers.end()); |
| 142 | } |
| 143 | |
| 144 | std::string TraceEvent::GetKnownArgAsString(const std::string& name) const { |
| 145 | std::string arg_string; |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 146 | bool result = GetArgAsString(name, &arg_string); |
| 147 | DCHECK(result); |
| 148 | return arg_string; |
jbates@chromium.org | f8732bd | 2011-11-05 02:10:12 +0900 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | double TraceEvent::GetKnownArgAsDouble(const std::string& name) const { |
pkasting@chromium.org | c117c65 | 2014-03-20 08:19:55 +0900 | [diff] [blame] | 152 | double arg_double = 0; |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 153 | bool result = GetArgAsNumber(name, &arg_double); |
| 154 | DCHECK(result); |
| 155 | return arg_double; |
jbates@chromium.org | f8732bd | 2011-11-05 02:10:12 +0900 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | int TraceEvent::GetKnownArgAsInt(const std::string& name) const { |
pkasting@chromium.org | c117c65 | 2014-03-20 08:19:55 +0900 | [diff] [blame] | 159 | double arg_double = 0; |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 160 | bool result = GetArgAsNumber(name, &arg_double); |
| 161 | DCHECK(result); |
| 162 | return static_cast<int>(arg_double); |
jbates@chromium.org | f8732bd | 2011-11-05 02:10:12 +0900 | [diff] [blame] | 163 | } |
| 164 | |
| 165 | bool TraceEvent::GetKnownArgAsBool(const std::string& name) const { |
pkasting@chromium.org | c117c65 | 2014-03-20 08:19:55 +0900 | [diff] [blame] | 166 | double arg_double = 0; |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 167 | bool result = GetArgAsNumber(name, &arg_double); |
| 168 | DCHECK(result); |
| 169 | return (arg_double != 0.0); |
jbates@chromium.org | f8732bd | 2011-11-05 02:10:12 +0900 | [diff] [blame] | 170 | } |
| 171 | |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 172 | // QueryNode |
| 173 | |
| 174 | QueryNode::QueryNode(const Query& query) : query_(query) { |
| 175 | } |
| 176 | |
| 177 | QueryNode::~QueryNode() { |
| 178 | } |
| 179 | |
| 180 | // Query |
| 181 | |
| 182 | Query::Query(TraceEventMember member) |
| 183 | : type_(QUERY_EVENT_MEMBER), |
| 184 | operator_(OP_INVALID), |
| 185 | member_(member), |
| 186 | number_(0), |
| 187 | is_pattern_(false) { |
| 188 | } |
| 189 | |
| 190 | Query::Query(TraceEventMember member, const std::string& arg_name) |
| 191 | : type_(QUERY_EVENT_MEMBER), |
| 192 | operator_(OP_INVALID), |
| 193 | member_(member), |
| 194 | number_(0), |
| 195 | string_(arg_name), |
| 196 | is_pattern_(false) { |
| 197 | } |
| 198 | |
| 199 | Query::Query(const Query& query) |
| 200 | : type_(query.type_), |
| 201 | operator_(query.operator_), |
| 202 | left_(query.left_), |
| 203 | right_(query.right_), |
| 204 | member_(query.member_), |
| 205 | number_(query.number_), |
| 206 | string_(query.string_), |
| 207 | is_pattern_(query.is_pattern_) { |
| 208 | } |
| 209 | |
| 210 | Query::~Query() { |
| 211 | } |
| 212 | |
| 213 | Query Query::String(const std::string& str) { |
| 214 | return Query(str); |
| 215 | } |
| 216 | |
| 217 | Query Query::Double(double num) { |
| 218 | return Query(num); |
| 219 | } |
| 220 | |
| 221 | Query Query::Int(int32 num) { |
| 222 | return Query(static_cast<double>(num)); |
| 223 | } |
| 224 | |
| 225 | Query Query::Uint(uint32 num) { |
| 226 | return Query(static_cast<double>(num)); |
| 227 | } |
| 228 | |
| 229 | Query Query::Bool(bool boolean) { |
| 230 | return Query(boolean ? 1.0 : 0.0); |
| 231 | } |
| 232 | |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 233 | Query Query::Phase(char phase) { |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 234 | return Query(static_cast<double>(phase)); |
| 235 | } |
| 236 | |
| 237 | Query Query::Pattern(const std::string& pattern) { |
| 238 | Query query(pattern); |
| 239 | query.is_pattern_ = true; |
| 240 | return query; |
| 241 | } |
| 242 | |
| 243 | bool Query::Evaluate(const TraceEvent& event) const { |
| 244 | // First check for values that can convert to bool. |
| 245 | |
| 246 | // double is true if != 0: |
| 247 | double bool_value = 0.0; |
| 248 | bool is_bool = GetAsDouble(event, &bool_value); |
| 249 | if (is_bool) |
| 250 | return (bool_value != 0.0); |
| 251 | |
| 252 | // string is true if it is non-empty: |
| 253 | std::string str_value; |
| 254 | bool is_str = GetAsString(event, &str_value); |
| 255 | if (is_str) |
| 256 | return !str_value.empty(); |
| 257 | |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 258 | DCHECK_EQ(QUERY_BOOLEAN_OPERATOR, type_) |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 259 | << "Invalid query: missing boolean expression"; |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 260 | DCHECK(left_.get()); |
| 261 | DCHECK(right_.get() || is_unary_operator()); |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 262 | |
| 263 | if (is_comparison_operator()) { |
| 264 | DCHECK(left().is_value() && right().is_value()) |
| 265 | << "Invalid query: comparison operator used between event member and " |
| 266 | "value."; |
| 267 | bool compare_result = false; |
| 268 | if (CompareAsDouble(event, &compare_result)) |
| 269 | return compare_result; |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 270 | if (CompareAsString(event, &compare_result)) |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 271 | return compare_result; |
| 272 | return false; |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 273 | } |
| 274 | // It's a logical operator. |
| 275 | switch (operator_) { |
| 276 | case OP_AND: |
| 277 | return left().Evaluate(event) && right().Evaluate(event); |
| 278 | case OP_OR: |
| 279 | return left().Evaluate(event) || right().Evaluate(event); |
| 280 | case OP_NOT: |
| 281 | return !left().Evaluate(event); |
| 282 | default: |
| 283 | NOTREACHED(); |
pkasting@chromium.org | c117c65 | 2014-03-20 08:19:55 +0900 | [diff] [blame] | 284 | return false; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 285 | } |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 286 | } |
| 287 | |
| 288 | bool Query::CompareAsDouble(const TraceEvent& event, bool* result) const { |
| 289 | double lhs, rhs; |
| 290 | if (!left().GetAsDouble(event, &lhs) || !right().GetAsDouble(event, &rhs)) |
| 291 | return false; |
| 292 | switch (operator_) { |
| 293 | case OP_EQ: |
| 294 | *result = (lhs == rhs); |
| 295 | return true; |
| 296 | case OP_NE: |
| 297 | *result = (lhs != rhs); |
| 298 | return true; |
| 299 | case OP_LT: |
| 300 | *result = (lhs < rhs); |
| 301 | return true; |
| 302 | case OP_LE: |
| 303 | *result = (lhs <= rhs); |
| 304 | return true; |
| 305 | case OP_GT: |
| 306 | *result = (lhs > rhs); |
| 307 | return true; |
| 308 | case OP_GE: |
| 309 | *result = (lhs >= rhs); |
| 310 | return true; |
| 311 | default: |
| 312 | NOTREACHED(); |
| 313 | return false; |
| 314 | } |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 315 | } |
| 316 | |
| 317 | bool Query::CompareAsString(const TraceEvent& event, bool* result) const { |
| 318 | std::string lhs, rhs; |
| 319 | if (!left().GetAsString(event, &lhs) || !right().GetAsString(event, &rhs)) |
| 320 | return false; |
| 321 | switch (operator_) { |
| 322 | case OP_EQ: |
| 323 | if (right().is_pattern_) |
| 324 | *result = MatchPattern(lhs, rhs); |
| 325 | else if (left().is_pattern_) |
| 326 | *result = MatchPattern(rhs, lhs); |
| 327 | else |
| 328 | *result = (lhs == rhs); |
| 329 | return true; |
| 330 | case OP_NE: |
| 331 | if (right().is_pattern_) |
| 332 | *result = !MatchPattern(lhs, rhs); |
| 333 | else if (left().is_pattern_) |
| 334 | *result = !MatchPattern(rhs, lhs); |
| 335 | else |
| 336 | *result = (lhs != rhs); |
| 337 | return true; |
| 338 | case OP_LT: |
| 339 | *result = (lhs < rhs); |
| 340 | return true; |
| 341 | case OP_LE: |
| 342 | *result = (lhs <= rhs); |
| 343 | return true; |
| 344 | case OP_GT: |
| 345 | *result = (lhs > rhs); |
| 346 | return true; |
| 347 | case OP_GE: |
| 348 | *result = (lhs >= rhs); |
| 349 | return true; |
| 350 | default: |
| 351 | NOTREACHED(); |
| 352 | return false; |
| 353 | } |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | bool Query::EvaluateArithmeticOperator(const TraceEvent& event, |
| 357 | double* num) const { |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 358 | DCHECK_EQ(QUERY_ARITHMETIC_OPERATOR, type_); |
| 359 | DCHECK(left_.get()); |
| 360 | DCHECK(right_.get() || is_unary_operator()); |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 361 | |
| 362 | double lhs = 0, rhs = 0; |
| 363 | if (!left().GetAsDouble(event, &lhs)) |
| 364 | return false; |
| 365 | if (!is_unary_operator() && !right().GetAsDouble(event, &rhs)) |
| 366 | return false; |
| 367 | |
| 368 | switch (operator_) { |
| 369 | case OP_ADD: |
| 370 | *num = lhs + rhs; |
| 371 | return true; |
| 372 | case OP_SUB: |
| 373 | *num = lhs - rhs; |
| 374 | return true; |
| 375 | case OP_MUL: |
| 376 | *num = lhs * rhs; |
| 377 | return true; |
| 378 | case OP_DIV: |
| 379 | *num = lhs / rhs; |
| 380 | return true; |
| 381 | case OP_MOD: |
| 382 | *num = static_cast<double>(static_cast<int64>(lhs) % |
| 383 | static_cast<int64>(rhs)); |
| 384 | return true; |
| 385 | case OP_NEGATE: |
| 386 | *num = -lhs; |
| 387 | return true; |
| 388 | default: |
| 389 | NOTREACHED(); |
| 390 | return false; |
| 391 | } |
| 392 | } |
| 393 | |
| 394 | bool Query::GetAsDouble(const TraceEvent& event, double* num) const { |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 395 | switch (type_) { |
| 396 | case QUERY_ARITHMETIC_OPERATOR: |
| 397 | return EvaluateArithmeticOperator(event, num); |
| 398 | case QUERY_EVENT_MEMBER: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 399 | return GetMemberValueAsDouble(event, num); |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 400 | case QUERY_NUMBER: |
| 401 | *num = number_; |
| 402 | return true; |
| 403 | default: |
| 404 | return false; |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | bool Query::GetAsString(const TraceEvent& event, std::string* str) const { |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 409 | switch (type_) { |
| 410 | case QUERY_EVENT_MEMBER: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 411 | return GetMemberValueAsString(event, str); |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 412 | case QUERY_STRING: |
| 413 | *str = string_; |
| 414 | return true; |
| 415 | default: |
| 416 | return false; |
| 417 | } |
| 418 | } |
| 419 | |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 420 | bool Query::GetMemberValueAsDouble(const TraceEvent& event, |
| 421 | double* num) const { |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 422 | DCHECK_EQ(QUERY_EVENT_MEMBER, type_); |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 423 | |
| 424 | // This could be a request for a member of |event| or a member of |event|'s |
| 425 | // associated event. Store the target event in the_event: |
| 426 | const TraceEvent* the_event = (member_ < OTHER_PID) ? |
| 427 | &event : event.other_event; |
| 428 | |
| 429 | // Request for member of associated event, but there is no associated event. |
| 430 | if (!the_event) |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 431 | return false; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 432 | |
| 433 | switch (member_) { |
| 434 | case EVENT_PID: |
| 435 | case OTHER_PID: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 436 | *num = static_cast<double>(the_event->thread.process_id); |
| 437 | return true; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 438 | case EVENT_TID: |
| 439 | case OTHER_TID: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 440 | *num = static_cast<double>(the_event->thread.thread_id); |
| 441 | return true; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 442 | case EVENT_TIME: |
| 443 | case OTHER_TIME: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 444 | *num = the_event->timestamp; |
| 445 | return true; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 446 | case EVENT_DURATION: |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 447 | if (!the_event->has_other_event()) |
| 448 | return false; |
| 449 | *num = the_event->GetAbsTimeToOtherEvent(); |
| 450 | return true; |
wangxianzhu@chromium.org | f17afbd | 2013-10-21 12:51:13 +0900 | [diff] [blame] | 451 | case EVENT_COMPLETE_DURATION: |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 452 | if (the_event->phase != TRACE_EVENT_PHASE_COMPLETE) |
| 453 | return false; |
| 454 | *num = the_event->duration; |
| 455 | return true; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 456 | case EVENT_PHASE: |
| 457 | case OTHER_PHASE: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 458 | *num = static_cast<double>(the_event->phase); |
| 459 | return true; |
jbates@chromium.org | f8732bd | 2011-11-05 02:10:12 +0900 | [diff] [blame] | 460 | case EVENT_HAS_STRING_ARG: |
| 461 | case OTHER_HAS_STRING_ARG: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 462 | *num = (the_event->HasStringArg(string_) ? 1.0 : 0.0); |
| 463 | return true; |
jbates@chromium.org | f8732bd | 2011-11-05 02:10:12 +0900 | [diff] [blame] | 464 | case EVENT_HAS_NUMBER_ARG: |
| 465 | case OTHER_HAS_NUMBER_ARG: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 466 | *num = (the_event->HasNumberArg(string_) ? 1.0 : 0.0); |
| 467 | return true; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 468 | case EVENT_ARG: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 469 | case OTHER_ARG: { |
| 470 | // Search for the argument name and return its value if found. |
| 471 | std::map<std::string, double>::const_iterator num_i = |
| 472 | the_event->arg_numbers.find(string_); |
| 473 | if (num_i == the_event->arg_numbers.end()) |
| 474 | return false; |
| 475 | *num = num_i->second; |
| 476 | return true; |
| 477 | } |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 478 | case EVENT_HAS_OTHER: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 479 | // return 1.0 (true) if the other event exists |
| 480 | *num = event.other_event ? 1.0 : 0.0; |
| 481 | return true; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 482 | default: |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 483 | return false; |
| 484 | } |
| 485 | } |
| 486 | |
| 487 | bool Query::GetMemberValueAsString(const TraceEvent& event, |
| 488 | std::string* str) const { |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 489 | DCHECK_EQ(QUERY_EVENT_MEMBER, type_); |
jbates@chromium.org | 59c2760 | 2012-01-13 12:12:44 +0900 | [diff] [blame] | 490 | |
| 491 | // This could be a request for a member of |event| or a member of |event|'s |
| 492 | // associated event. Store the target event in the_event: |
| 493 | const TraceEvent* the_event = (member_ < OTHER_PID) ? |
| 494 | &event : event.other_event; |
| 495 | |
| 496 | // Request for member of associated event, but there is no associated event. |
| 497 | if (!the_event) |
| 498 | return false; |
| 499 | |
| 500 | switch (member_) { |
| 501 | case EVENT_CATEGORY: |
| 502 | case OTHER_CATEGORY: |
| 503 | *str = the_event->category; |
| 504 | return true; |
| 505 | case EVENT_NAME: |
| 506 | case OTHER_NAME: |
| 507 | *str = the_event->name; |
| 508 | return true; |
| 509 | case EVENT_ID: |
| 510 | case OTHER_ID: |
| 511 | *str = the_event->id; |
| 512 | return true; |
| 513 | case EVENT_ARG: |
| 514 | case OTHER_ARG: { |
| 515 | // Search for the argument name and return its value if found. |
| 516 | std::map<std::string, std::string>::const_iterator str_i = |
| 517 | the_event->arg_strings.find(string_); |
| 518 | if (str_i == the_event->arg_strings.end()) |
| 519 | return false; |
| 520 | *str = str_i->second; |
| 521 | return true; |
| 522 | } |
| 523 | default: |
| 524 | return false; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 525 | } |
| 526 | } |
| 527 | |
| 528 | Query::Query(const std::string& str) |
| 529 | : type_(QUERY_STRING), |
| 530 | operator_(OP_INVALID), |
| 531 | member_(EVENT_INVALID), |
| 532 | number_(0), |
| 533 | string_(str), |
| 534 | is_pattern_(false) { |
| 535 | } |
| 536 | |
| 537 | Query::Query(double num) |
| 538 | : type_(QUERY_NUMBER), |
| 539 | operator_(OP_INVALID), |
| 540 | member_(EVENT_INVALID), |
| 541 | number_(num), |
| 542 | is_pattern_(false) { |
| 543 | } |
| 544 | const Query& Query::left() const { |
| 545 | return left_->query(); |
| 546 | } |
| 547 | |
| 548 | const Query& Query::right() const { |
| 549 | return right_->query(); |
| 550 | } |
| 551 | |
| 552 | Query Query::operator==(const Query& rhs) const { |
| 553 | return Query(*this, rhs, OP_EQ); |
| 554 | } |
| 555 | |
| 556 | Query Query::operator!=(const Query& rhs) const { |
| 557 | return Query(*this, rhs, OP_NE); |
| 558 | } |
| 559 | |
| 560 | Query Query::operator<(const Query& rhs) const { |
| 561 | return Query(*this, rhs, OP_LT); |
| 562 | } |
| 563 | |
| 564 | Query Query::operator<=(const Query& rhs) const { |
| 565 | return Query(*this, rhs, OP_LE); |
| 566 | } |
| 567 | |
| 568 | Query Query::operator>(const Query& rhs) const { |
| 569 | return Query(*this, rhs, OP_GT); |
| 570 | } |
| 571 | |
| 572 | Query Query::operator>=(const Query& rhs) const { |
| 573 | return Query(*this, rhs, OP_GE); |
| 574 | } |
| 575 | |
| 576 | Query Query::operator&&(const Query& rhs) const { |
| 577 | return Query(*this, rhs, OP_AND); |
| 578 | } |
| 579 | |
| 580 | Query Query::operator||(const Query& rhs) const { |
| 581 | return Query(*this, rhs, OP_OR); |
| 582 | } |
| 583 | |
| 584 | Query Query::operator!() const { |
| 585 | return Query(*this, OP_NOT); |
| 586 | } |
| 587 | |
| 588 | Query Query::operator+(const Query& rhs) const { |
| 589 | return Query(*this, rhs, OP_ADD); |
| 590 | } |
| 591 | |
| 592 | Query Query::operator-(const Query& rhs) const { |
| 593 | return Query(*this, rhs, OP_SUB); |
| 594 | } |
| 595 | |
| 596 | Query Query::operator*(const Query& rhs) const { |
| 597 | return Query(*this, rhs, OP_MUL); |
| 598 | } |
| 599 | |
| 600 | Query Query::operator/(const Query& rhs) const { |
| 601 | return Query(*this, rhs, OP_DIV); |
| 602 | } |
| 603 | |
| 604 | Query Query::operator%(const Query& rhs) const { |
| 605 | return Query(*this, rhs, OP_MOD); |
| 606 | } |
| 607 | |
| 608 | Query Query::operator-() const { |
| 609 | return Query(*this, OP_NEGATE); |
| 610 | } |
| 611 | |
| 612 | |
| 613 | Query::Query(const Query& left, const Query& right, Operator binary_op) |
| 614 | : operator_(binary_op), |
| 615 | left_(new QueryNode(left)), |
| 616 | right_(new QueryNode(right)), |
| 617 | member_(EVENT_INVALID), |
| 618 | number_(0) { |
| 619 | type_ = (binary_op < OP_ADD ? |
| 620 | QUERY_BOOLEAN_OPERATOR : QUERY_ARITHMETIC_OPERATOR); |
| 621 | } |
| 622 | |
| 623 | Query::Query(const Query& left, Operator unary_op) |
| 624 | : operator_(unary_op), |
| 625 | left_(new QueryNode(left)), |
| 626 | member_(EVENT_INVALID), |
| 627 | number_(0) { |
| 628 | type_ = (unary_op < OP_ADD ? |
| 629 | QUERY_BOOLEAN_OPERATOR : QUERY_ARITHMETIC_OPERATOR); |
| 630 | } |
| 631 | |
| 632 | namespace { |
| 633 | |
| 634 | // Search |events| for |query| and add matches to |output|. |
| 635 | size_t FindMatchingEvents(const std::vector<TraceEvent>& events, |
| 636 | const Query& query, |
nduca@chromium.org | 78d5471 | 2014-05-24 11:25:20 +0900 | [diff] [blame] | 637 | TraceEventVector* output, |
| 638 | bool ignore_metadata_events) { |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 639 | for (size_t i = 0; i < events.size(); ++i) { |
nduca@chromium.org | 78d5471 | 2014-05-24 11:25:20 +0900 | [diff] [blame] | 640 | if (ignore_metadata_events && events[i].phase == TRACE_EVENT_PHASE_METADATA) |
| 641 | continue; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 642 | if (query.Evaluate(events[i])) |
| 643 | output->push_back(&events[i]); |
| 644 | } |
| 645 | return output->size(); |
| 646 | } |
| 647 | |
| 648 | bool ParseEventsFromJson(const std::string& json, |
| 649 | std::vector<TraceEvent>* output) { |
| 650 | scoped_ptr<base::Value> root; |
rsesek@chromium.org | dc692f5 | 2012-04-11 09:15:41 +0900 | [diff] [blame] | 651 | root.reset(base::JSONReader::Read(json)); |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 652 | |
brettw@chromium.org | 88aa655 | 2013-06-15 02:56:08 +0900 | [diff] [blame] | 653 | base::ListValue* root_list = NULL; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 654 | if (!root.get() || !root->GetAsList(&root_list)) |
| 655 | return false; |
| 656 | |
| 657 | for (size_t i = 0; i < root_list->GetSize(); ++i) { |
brettw@chromium.org | 88aa655 | 2013-06-15 02:56:08 +0900 | [diff] [blame] | 658 | base::Value* item = NULL; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 659 | if (root_list->Get(i, &item)) { |
| 660 | TraceEvent event; |
| 661 | if (event.SetFromJSON(item)) |
| 662 | output->push_back(event); |
| 663 | else |
| 664 | return false; |
| 665 | } |
| 666 | } |
| 667 | |
| 668 | return true; |
| 669 | } |
| 670 | |
| 671 | } // namespace |
| 672 | |
| 673 | // TraceAnalyzer |
| 674 | |
nduca@chromium.org | 78d5471 | 2014-05-24 11:25:20 +0900 | [diff] [blame] | 675 | TraceAnalyzer::TraceAnalyzer() |
| 676 | : ignore_metadata_events_(false), |
| 677 | allow_assocation_changes_(true) {} |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 678 | |
| 679 | TraceAnalyzer::~TraceAnalyzer() { |
| 680 | } |
| 681 | |
| 682 | // static |
| 683 | TraceAnalyzer* TraceAnalyzer::Create(const std::string& json_events) { |
| 684 | scoped_ptr<TraceAnalyzer> analyzer(new TraceAnalyzer()); |
| 685 | if (analyzer->SetEvents(json_events)) |
| 686 | return analyzer.release(); |
| 687 | return NULL; |
| 688 | } |
| 689 | |
| 690 | bool TraceAnalyzer::SetEvents(const std::string& json_events) { |
| 691 | raw_events_.clear(); |
| 692 | if (!ParseEventsFromJson(json_events, &raw_events_)) |
| 693 | return false; |
| 694 | std::stable_sort(raw_events_.begin(), raw_events_.end()); |
| 695 | ParseMetadata(); |
| 696 | return true; |
| 697 | } |
| 698 | |
| 699 | void TraceAnalyzer::AssociateBeginEndEvents() { |
jbates@chromium.org | e9b2d8b | 2012-01-13 06:41:54 +0900 | [diff] [blame] | 700 | using trace_analyzer::Query; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 701 | |
jbates@chromium.org | d9354e4 | 2012-09-14 03:04:29 +0900 | [diff] [blame] | 702 | Query begin(Query::EventPhaseIs(TRACE_EVENT_PHASE_BEGIN)); |
| 703 | Query end(Query::EventPhaseIs(TRACE_EVENT_PHASE_END)); |
jbates@chromium.org | e9b2d8b | 2012-01-13 06:41:54 +0900 | [diff] [blame] | 704 | Query match(Query::EventName() == Query::OtherName() && |
| 705 | Query::EventCategory() == Query::OtherCategory() && |
| 706 | Query::EventTid() == Query::OtherTid() && |
| 707 | Query::EventPid() == Query::OtherPid()); |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 708 | |
| 709 | AssociateEvents(begin, end, match); |
| 710 | } |
| 711 | |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 712 | void TraceAnalyzer::AssociateAsyncBeginEndEvents() { |
jbates@chromium.org | e9b2d8b | 2012-01-13 06:41:54 +0900 | [diff] [blame] | 713 | using trace_analyzer::Query; |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 714 | |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 715 | Query begin( |
jbates@chromium.org | d9354e4 | 2012-09-14 03:04:29 +0900 | [diff] [blame] | 716 | Query::EventPhaseIs(TRACE_EVENT_PHASE_ASYNC_BEGIN) || |
simonjam@chromium.org | 7611bfd | 2013-10-24 11:44:11 +0900 | [diff] [blame] | 717 | Query::EventPhaseIs(TRACE_EVENT_PHASE_ASYNC_STEP_INTO) || |
| 718 | Query::EventPhaseIs(TRACE_EVENT_PHASE_ASYNC_STEP_PAST)); |
jbates@chromium.org | d9354e4 | 2012-09-14 03:04:29 +0900 | [diff] [blame] | 719 | Query end(Query::EventPhaseIs(TRACE_EVENT_PHASE_ASYNC_END) || |
simonjam@chromium.org | 7611bfd | 2013-10-24 11:44:11 +0900 | [diff] [blame] | 720 | Query::EventPhaseIs(TRACE_EVENT_PHASE_ASYNC_STEP_INTO) || |
| 721 | Query::EventPhaseIs(TRACE_EVENT_PHASE_ASYNC_STEP_PAST)); |
jbates@chromium.org | e9b2d8b | 2012-01-13 06:41:54 +0900 | [diff] [blame] | 722 | Query match(Query::EventName() == Query::OtherName() && |
| 723 | Query::EventCategory() == Query::OtherCategory() && |
| 724 | Query::EventId() == Query::OtherId()); |
jbates@chromium.org | 405fe4e | 2011-12-03 02:26:41 +0900 | [diff] [blame] | 725 | |
| 726 | AssociateEvents(begin, end, match); |
| 727 | } |
| 728 | |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 729 | void TraceAnalyzer::AssociateEvents(const Query& first, |
| 730 | const Query& second, |
| 731 | const Query& match) { |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 732 | DCHECK(allow_assocation_changes_) |
| 733 | << "AssociateEvents not allowed after FindEvents"; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 734 | |
| 735 | // Search for matching begin/end event pairs. When a matching end is found, |
| 736 | // it is associated with the begin event. |
| 737 | std::vector<TraceEvent*> begin_stack; |
| 738 | for (size_t event_index = 0; event_index < raw_events_.size(); |
| 739 | ++event_index) { |
| 740 | |
| 741 | TraceEvent& this_event = raw_events_[event_index]; |
| 742 | |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 743 | if (second.Evaluate(this_event)) { |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 744 | // Search stack for matching begin, starting from end. |
| 745 | for (int stack_index = static_cast<int>(begin_stack.size()) - 1; |
| 746 | stack_index >= 0; --stack_index) { |
| 747 | TraceEvent& begin_event = *begin_stack[stack_index]; |
| 748 | |
| 749 | // Temporarily set other to test against the match query. |
| 750 | const TraceEvent* other_backup = begin_event.other_event; |
| 751 | begin_event.other_event = &this_event; |
| 752 | if (match.Evaluate(begin_event)) { |
| 753 | // Found a matching begin/end pair. |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 754 | // Erase the matching begin event index from the stack. |
| 755 | begin_stack.erase(begin_stack.begin() + stack_index); |
| 756 | break; |
| 757 | } |
| 758 | |
| 759 | // Not a match, restore original other and continue. |
| 760 | begin_event.other_event = other_backup; |
| 761 | } |
| 762 | } |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 763 | // Even if this_event is a |second| event that has matched an earlier |
| 764 | // |first| event, it can still also be a |first| event and be associated |
| 765 | // with a later |second| event. |
| 766 | if (first.Evaluate(this_event)) { |
| 767 | begin_stack.push_back(&this_event); |
| 768 | } |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 769 | } |
| 770 | } |
| 771 | |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 772 | void TraceAnalyzer::MergeAssociatedEventArgs() { |
| 773 | for (size_t i = 0; i < raw_events_.size(); ++i) { |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 774 | // Merge all associated events with the first event. |
| 775 | const TraceEvent* other = raw_events_[i].other_event; |
| 776 | // Avoid looping by keeping set of encountered TraceEvents. |
| 777 | std::set<const TraceEvent*> encounters; |
| 778 | encounters.insert(&raw_events_[i]); |
| 779 | while (other && encounters.find(other) == encounters.end()) { |
| 780 | encounters.insert(other); |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 781 | raw_events_[i].arg_numbers.insert( |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 782 | other->arg_numbers.begin(), |
| 783 | other->arg_numbers.end()); |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 784 | raw_events_[i].arg_strings.insert( |
jbates@chromium.org | 88295f9 | 2012-03-01 12:04:59 +0900 | [diff] [blame] | 785 | other->arg_strings.begin(), |
| 786 | other->arg_strings.end()); |
| 787 | other = other->other_event; |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 788 | } |
| 789 | } |
| 790 | } |
| 791 | |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 792 | size_t TraceAnalyzer::FindEvents(const Query& query, TraceEventVector* output) { |
| 793 | allow_assocation_changes_ = false; |
| 794 | output->clear(); |
nduca@chromium.org | 78d5471 | 2014-05-24 11:25:20 +0900 | [diff] [blame] | 795 | return FindMatchingEvents( |
| 796 | raw_events_, query, output, ignore_metadata_events_); |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 797 | } |
| 798 | |
jbates@chromium.org | d9354e4 | 2012-09-14 03:04:29 +0900 | [diff] [blame] | 799 | const TraceEvent* TraceAnalyzer::FindFirstOf(const Query& query) { |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 800 | TraceEventVector output; |
| 801 | if (FindEvents(query, &output) > 0) |
| 802 | return output.front(); |
| 803 | return NULL; |
| 804 | } |
| 805 | |
jbates@chromium.org | d9354e4 | 2012-09-14 03:04:29 +0900 | [diff] [blame] | 806 | const TraceEvent* TraceAnalyzer::FindLastOf(const Query& query) { |
| 807 | TraceEventVector output; |
| 808 | if (FindEvents(query, &output) > 0) |
| 809 | return output.back(); |
| 810 | return NULL; |
| 811 | } |
| 812 | |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 813 | const std::string& TraceAnalyzer::GetThreadName( |
| 814 | const TraceEvent::ProcessThreadID& thread) { |
| 815 | // If thread is not found, just add and return empty string. |
| 816 | return thread_names_[thread]; |
| 817 | } |
| 818 | |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 819 | void TraceAnalyzer::ParseMetadata() { |
| 820 | for (size_t i = 0; i < raw_events_.size(); ++i) { |
| 821 | TraceEvent& this_event = raw_events_[i]; |
| 822 | // Check for thread name metadata. |
| 823 | if (this_event.phase != TRACE_EVENT_PHASE_METADATA || |
| 824 | this_event.name != "thread_name") |
| 825 | continue; |
| 826 | std::map<std::string, std::string>::const_iterator string_it = |
| 827 | this_event.arg_strings.find("name"); |
| 828 | if (string_it != this_event.arg_strings.end()) |
| 829 | thread_names_[this_event.thread] = string_it->second; |
| 830 | } |
| 831 | } |
| 832 | |
| 833 | // TraceEventVector utility functions. |
| 834 | |
jbates@chromium.org | 9af00eb | 2012-03-10 05:43:12 +0900 | [diff] [blame] | 835 | bool GetRateStats(const TraceEventVector& events, |
| 836 | RateStats* stats, |
| 837 | const RateStatsOptions* options) { |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 838 | DCHECK(stats); |
jbates@chromium.org | cda3b0f | 2011-12-01 09:39:23 +0900 | [diff] [blame] | 839 | // Need at least 3 events to calculate rate stats. |
jbates@chromium.org | 9af00eb | 2012-03-10 05:43:12 +0900 | [diff] [blame] | 840 | const size_t kMinEvents = 3; |
| 841 | if (events.size() < kMinEvents) { |
jbates@chromium.org | cda3b0f | 2011-12-01 09:39:23 +0900 | [diff] [blame] | 842 | LOG(ERROR) << "Not enough events: " << events.size(); |
| 843 | return false; |
| 844 | } |
| 845 | |
| 846 | std::vector<double> deltas; |
jbates@chromium.org | cda3b0f | 2011-12-01 09:39:23 +0900 | [diff] [blame] | 847 | size_t num_deltas = events.size() - 1; |
| 848 | for (size_t i = 0; i < num_deltas; ++i) { |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 849 | double delta = events.at(i + 1)->timestamp - events.at(i)->timestamp; |
jbates@chromium.org | cda3b0f | 2011-12-01 09:39:23 +0900 | [diff] [blame] | 850 | if (delta < 0.0) { |
| 851 | LOG(ERROR) << "Events are out of order"; |
| 852 | return false; |
| 853 | } |
| 854 | deltas.push_back(delta); |
jbates@chromium.org | cda3b0f | 2011-12-01 09:39:23 +0900 | [diff] [blame] | 855 | } |
| 856 | |
jbates@chromium.org | 9af00eb | 2012-03-10 05:43:12 +0900 | [diff] [blame] | 857 | std::sort(deltas.begin(), deltas.end()); |
| 858 | |
| 859 | if (options) { |
| 860 | if (options->trim_min + options->trim_max > events.size() - kMinEvents) { |
| 861 | LOG(ERROR) << "Attempt to trim too many events"; |
| 862 | return false; |
| 863 | } |
| 864 | deltas.erase(deltas.begin(), deltas.begin() + options->trim_min); |
| 865 | deltas.erase(deltas.end() - options->trim_max, deltas.end()); |
| 866 | } |
| 867 | |
| 868 | num_deltas = deltas.size(); |
| 869 | double delta_sum = 0.0; |
| 870 | for (size_t i = 0; i < num_deltas; ++i) |
| 871 | delta_sum += deltas[i]; |
| 872 | |
jbates@chromium.org | cda3b0f | 2011-12-01 09:39:23 +0900 | [diff] [blame] | 873 | stats->min_us = *std::min_element(deltas.begin(), deltas.end()); |
| 874 | stats->max_us = *std::max_element(deltas.begin(), deltas.end()); |
| 875 | stats->mean_us = delta_sum / static_cast<double>(num_deltas); |
| 876 | |
| 877 | double sum_mean_offsets_squared = 0.0; |
| 878 | for (size_t i = 0; i < num_deltas; ++i) { |
| 879 | double offset = fabs(deltas[i] - stats->mean_us); |
| 880 | sum_mean_offsets_squared += offset * offset; |
| 881 | } |
| 882 | stats->standard_deviation_us = |
hubbe@chromium.org | 4de8084 | 2013-08-20 18:56:02 +0900 | [diff] [blame] | 883 | sqrt(sum_mean_offsets_squared / static_cast<double>(num_deltas - 1)); |
jbates@chromium.org | cda3b0f | 2011-12-01 09:39:23 +0900 | [diff] [blame] | 884 | |
| 885 | return true; |
| 886 | } |
| 887 | |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 888 | bool FindFirstOf(const TraceEventVector& events, |
| 889 | const Query& query, |
| 890 | size_t position, |
| 891 | size_t* return_index) { |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 892 | DCHECK(return_index); |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 893 | for (size_t i = position; i < events.size(); ++i) { |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 894 | if (query.Evaluate(*events[i])) { |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 895 | *return_index = i; |
| 896 | return true; |
| 897 | } |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 898 | } |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 899 | return false; |
| 900 | } |
| 901 | |
| 902 | bool FindLastOf(const TraceEventVector& events, |
| 903 | const Query& query, |
| 904 | size_t position, |
| 905 | size_t* return_index) { |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 906 | DCHECK(return_index); |
pkasting@chromium.org | c117c65 | 2014-03-20 08:19:55 +0900 | [diff] [blame] | 907 | for (size_t i = std::min(position + 1, events.size()); i != 0; --i) { |
| 908 | if (query.Evaluate(*events[i - 1])) { |
| 909 | *return_index = i - 1; |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 910 | return true; |
| 911 | } |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 912 | } |
| 913 | return false; |
| 914 | } |
| 915 | |
| 916 | bool FindClosest(const TraceEventVector& events, |
| 917 | const Query& query, |
| 918 | size_t position, |
| 919 | size_t* return_closest, |
| 920 | size_t* return_second_closest) { |
pkasting@chromium.org | 0f88913 | 2014-03-20 06:15:54 +0900 | [diff] [blame] | 921 | DCHECK(return_closest); |
jbates@chromium.org | 33cb23c | 2011-12-15 07:21:38 +0900 | [diff] [blame] | 922 | if (events.empty() || position >= events.size()) |
| 923 | return false; |
| 924 | size_t closest = events.size(); |
| 925 | size_t second_closest = events.size(); |
| 926 | for (size_t i = 0; i < events.size(); ++i) { |
| 927 | if (!query.Evaluate(*events.at(i))) |
| 928 | continue; |
| 929 | if (closest == events.size()) { |
| 930 | closest = i; |
| 931 | continue; |
| 932 | } |
| 933 | if (fabs(events.at(i)->timestamp - events.at(position)->timestamp) < |
| 934 | fabs(events.at(closest)->timestamp - events.at(position)->timestamp)) { |
| 935 | second_closest = closest; |
| 936 | closest = i; |
| 937 | } else if (second_closest == events.size()) { |
| 938 | second_closest = i; |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | if (closest < events.size() && |
| 943 | (!return_second_closest || second_closest < events.size())) { |
| 944 | *return_closest = closest; |
| 945 | if (return_second_closest) |
| 946 | *return_second_closest = second_closest; |
| 947 | return true; |
| 948 | } |
| 949 | |
| 950 | return false; |
| 951 | } |
| 952 | |
| 953 | size_t CountMatches(const TraceEventVector& events, |
| 954 | const Query& query, |
| 955 | size_t begin_position, |
| 956 | size_t end_position) { |
| 957 | if (begin_position >= events.size()) |
| 958 | return 0u; |
| 959 | end_position = (end_position < events.size()) ? end_position : events.size(); |
| 960 | size_t count = 0u; |
| 961 | for (size_t i = begin_position; i < end_position; ++i) { |
| 962 | if (query.Evaluate(*events.at(i))) |
| 963 | ++count; |
| 964 | } |
| 965 | return count; |
jbates@chromium.org | f44a688 | 2011-10-29 12:16:52 +0900 | [diff] [blame] | 966 | } |
| 967 | |
| 968 | } // namespace trace_analyzer |