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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Use trace_analyzer::Query and trace_analyzer::TraceAnalyzer to search for | 5 // Use trace_analyzer::Query and trace_analyzer::TraceAnalyzer to search for |
| 6 // specific trace events that were generated by the trace_event.h API. | 6 // specific trace events that were generated by the trace_event.h API. |
| 7 // | 7 // |
| 8 // Basic procedure: | 8 // Basic procedure: |
| 9 // - Get trace events JSON string from base::trace_event::TraceLog. | 9 // - Get trace events JSON string from base::trace_event::TraceLog. |
| 10 // - Create TraceAnalyzer with JSON string. | 10 // - Create TraceAnalyzer with JSON string. |
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| 128 // event. Must have already verified that other_event exists by | 128 // event. Must have already verified that other_event exists by |
| 129 // Query(EVENT_HAS_OTHER) or by calling has_other_event(). | 129 // Query(EVENT_HAS_OTHER) or by calling has_other_event(). |
| 130 double GetAbsTimeToOtherEvent() const; | 130 double GetAbsTimeToOtherEvent() const; |
| 131 | 131 |
| 132 // Return the argument value if it exists and it is a string. | 132 // Return the argument value if it exists and it is a string. |
| 133 bool GetArgAsString(const std::string& name, std::string* arg) const; | 133 bool GetArgAsString(const std::string& name, std::string* arg) const; |
| 134 // Return the argument value if it exists and it is a number. | 134 // Return the argument value if it exists and it is a number. |
| 135 bool GetArgAsNumber(const std::string& name, double* arg) const; | 135 bool GetArgAsNumber(const std::string& name, double* arg) const; |
| 136 // Return the argument value if it exists. | 136 // Return the argument value if it exists. |
| 137 bool GetArgAsValue(const std::string& name, | 137 bool GetArgAsValue(const std::string& name, |
| 138 scoped_ptr<base::Value>* arg) const; | 138 std::unique_ptr<base::Value>* arg) const; |
| 139 | 139 |
| 140 // Check if argument exists and is string. | 140 // Check if argument exists and is string. |
| 141 bool HasStringArg(const std::string& name) const; | 141 bool HasStringArg(const std::string& name) const; |
| 142 // Check if argument exists and is number (double, int or bool). | 142 // Check if argument exists and is number (double, int or bool). |
| 143 bool HasNumberArg(const std::string& name) const; | 143 bool HasNumberArg(const std::string& name) const; |
| 144 // Check if argument exists. | 144 // Check if argument exists. |
| 145 bool HasArg(const std::string& name) const; | 145 bool HasArg(const std::string& name) const; |
| 146 | 146 |
| 147 // Get known existing arguments as specific types. | 147 // Get known existing arguments as specific types. |
| 148 // Useful when you have already queried the argument with | 148 // Useful when you have already queried the argument with |
| 149 // Query(HAS_NUMBER_ARG) or Query(HAS_STRING_ARG). | 149 // Query(HAS_NUMBER_ARG) or Query(HAS_STRING_ARG). |
| 150 std::string GetKnownArgAsString(const std::string& name) const; | 150 std::string GetKnownArgAsString(const std::string& name) const; |
| 151 double GetKnownArgAsDouble(const std::string& name) const; | 151 double GetKnownArgAsDouble(const std::string& name) const; |
| 152 int GetKnownArgAsInt(const std::string& name) const; | 152 int GetKnownArgAsInt(const std::string& name) const; |
| 153 bool GetKnownArgAsBool(const std::string& name) const; | 153 bool GetKnownArgAsBool(const std::string& name) const; |
| 154 scoped_ptr<base::Value> GetKnownArgAsValue(const std::string& name) const; | 154 std::unique_ptr<base::Value> GetKnownArgAsValue( |
| 155 const std::string& name) const; |
| 155 | 156 |
| 156 // Process ID and Thread ID. | 157 // Process ID and Thread ID. |
| 157 ProcessThreadID thread; | 158 ProcessThreadID thread; |
| 158 | 159 |
| 159 // Time since epoch in microseconds. | 160 // Time since epoch in microseconds. |
| 160 // Stored as double to match its JSON representation. | 161 // Stored as double to match its JSON representation. |
| 161 double timestamp; | 162 double timestamp; |
| 162 double duration; | 163 double duration; |
| 163 char phase; | 164 char phase; |
| 164 std::string category; | 165 std::string category; |
| 165 std::string name; | 166 std::string name; |
| 166 std::string id; | 167 std::string id; |
| 167 | 168 |
| 168 // All numbers and bool values from TraceEvent args are cast to double. | 169 // All numbers and bool values from TraceEvent args are cast to double. |
| 169 // bool becomes 1.0 (true) or 0.0 (false). | 170 // bool becomes 1.0 (true) or 0.0 (false). |
| 170 std::map<std::string, double> arg_numbers; | 171 std::map<std::string, double> arg_numbers; |
| 171 std::map<std::string, std::string> arg_strings; | 172 std::map<std::string, std::string> arg_strings; |
| 172 std::map<std::string, scoped_ptr<base::Value>> arg_values; | 173 std::map<std::string, std::unique_ptr<base::Value>> arg_values; |
| 173 | 174 |
| 174 // The other event associated with this event (or NULL). | 175 // The other event associated with this event (or NULL). |
| 175 const TraceEvent* other_event; | 176 const TraceEvent* other_event; |
| 176 }; | 177 }; |
| 177 | 178 |
| 178 typedef std::vector<const TraceEvent*> TraceEventVector; | 179 typedef std::vector<const TraceEvent*> TraceEventVector; |
| 179 | 180 |
| 180 class Query { | 181 class Query { |
| 181 public: | 182 public: |
| 182 Query(const Query& query); | 183 Query(const Query& query); |
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| 705 | 706 |
| 706 // Count all matches. | 707 // Count all matches. |
| 707 static inline size_t CountMatches(const TraceEventVector& events, | 708 static inline size_t CountMatches(const TraceEventVector& events, |
| 708 const Query& query) { | 709 const Query& query) { |
| 709 return CountMatches(events, query, 0u, events.size()); | 710 return CountMatches(events, query, 0u, events.size()); |
| 710 } | 711 } |
| 711 | 712 |
| 712 } // namespace trace_analyzer | 713 } // namespace trace_analyzer |
| 713 | 714 |
| 714 #endif // BASE_TEST_TRACE_EVENT_ANALYZER_H_ | 715 #endif // BASE_TEST_TRACE_EVENT_ANALYZER_H_ |
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