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 41namespace ceres { 42namespace 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. 47class ExecutionSummary { 48 public: 49 void IncrementTimeBy(const string& name, const double value) { 50 CeresMutexLock l(×_mutex_); 51 times_[name] += value; 52 } 53 54 void IncrementCall(const string& name) { 55 CeresMutexLock l(&calls_mutex_); 56 calls_[name] += 1; 57 } 58 59 const map<string, double>& times() const { return times_; } 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 70class ScopedExecutionTimer { 71 public: 72 ScopedExecutionTimer(const string& name, ExecutionSummary* summary) 73 : start_time_(WallTimeInSeconds()), 74 name_(name), 75 summary_(summary) {} 76 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