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| 1 // Copyright 2013 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 #ifndef BASE_TEST_PERF_TIME_LOGGER_H_ | |
| 6 #define BASE_TEST_PERF_TIME_LOGGER_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/basictypes.h" | |
| 11 #include "base/timer/elapsed_timer.h" | |
| 12 | |
| 13 namespace base { | |
| 14 | |
| 15 // Automates calling LogPerfResult for the common case where you want | |
| 16 // to measure the time that something took. Call Done() when the test | |
| 17 // is complete if you do extra work after the test or there are stack | |
| 18 // objects with potentially expensive constructors. Otherwise, this | |
| 19 // class with automatically log on destruction. | |
| 20 class PerfTimeLogger { | |
| 21 public: | |
| 22 explicit PerfTimeLogger(const char* test_name); | |
| 23 ~PerfTimeLogger(); | |
| 24 | |
| 25 void Done(); | |
| 26 | |
| 27 private: | |
| 28 bool logged_; | |
| 29 std::string test_name_; | |
| 30 ElapsedTimer timer_; | |
| 31 | |
| 32 DISALLOW_COPY_AND_ASSIGN(PerfTimeLogger); | |
| 33 }; | |
| 34 | |
| 35 } // namespace base | |
| 36 | |
| 37 #endif // BASE_TEST_PERF_TIME_LOGGER_H_ | |
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