1 // Ceres Solver - A fast non-linear least squares minimizer 2 // Copyright 2013 Google Inc. All rights reserved. 3 // http://code.google.com/p/ceres-solver/ 4 // 5 // Redistribution and use in source and binary forms, with or without 6 // modification, are permitted provided that the following conditions are met: 7 // 8 // * Redistributions of source code must retain the above copyright notice, 9 // this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above copyright notice, 11 // this list of conditions and the following disclaimer in the documentation 12 // and/or other materials provided with the distribution. 13 // * Neither the name of Google Inc. nor the names of its contributors may be 14 // used to endorse or promote products derived from this software without 15 // specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 21 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 // POSSIBILITY OF SUCH DAMAGE. 28 // 29 // Author: sameeragarwal@google.com (Sameer Agarwal) 30 31 #ifndef CERES_INTERNAL_EXECUTION_SUMMARY_H_ 32 #define CERES_INTERNAL_EXECUTION_SUMMARY_H_ 33 34 #include <map> 35 #include <string> 36 37 #include "ceres/internal/port.h" 38 #include "ceres/wall_time.h" 39 #include "ceres/mutex.h" 40 41 namespace ceres { 42 namespace internal { 43 44 // Struct used by various objects to report statistics and other 45 // information about their execution. e.g., ExecutionSummary::times 46 // can be used for reporting times associated with various activities. 47 class ExecutionSummary { 48 public: IncrementTimeBy(const string & name,const double value)49 void IncrementTimeBy(const string& name, const double value) { 50 CeresMutexLock l(×_mutex_); 51 times_[name] += value; 52 } 53 IncrementCall(const string & name)54 void IncrementCall(const string& name) { 55 CeresMutexLock l(&calls_mutex_); 56 calls_[name] += 1; 57 } 58 times()59 const map<string, double>& times() const { return times_; } calls()60 const map<string, int>& calls() const { return calls_; } 61 62 private: 63 Mutex times_mutex_; 64 map<string, double> times_; 65 66 Mutex calls_mutex_; 67 map<string, int> calls_; 68 }; 69 70 class ScopedExecutionTimer { 71 public: ScopedExecutionTimer(const string & name,ExecutionSummary * summary)72 ScopedExecutionTimer(const string& name, ExecutionSummary* summary) 73 : start_time_(WallTimeInSeconds()), 74 name_(name), 75 summary_(summary) {} 76 ~ScopedExecutionTimer()77 ~ScopedExecutionTimer() { 78 summary_->IncrementTimeBy(name_, WallTimeInSeconds() - start_time_); 79 } 80 81 private: 82 const double start_time_; 83 const string name_; 84 ExecutionSummary* summary_; 85 }; 86 87 } // namespace internal 88 } // namespace ceres 89 90 #endif // CERES_INTERNAL_EXECUTION_SUMMARY_H_ 91