| // Ceres Solver - A fast non-linear least squares minimizer |
| // Copyright 2015 Google Inc. All rights reserved. |
| // http://ceres-solver.org/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // * Redistributions of source code must retain the above copyright notice, |
| // this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // * Neither the name of Google Inc. nor the names of its contributors may be |
| // used to endorse or promote products derived from this software without |
| // specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| // POSSIBILITY OF SUCH DAMAGE. |
| // |
| // Author: sameeragarwal@google.com (Sameer Agarwal) |
| |
| #ifndef CERES_INTERNAL_EXECUTION_SUMMARY_H_ |
| #define CERES_INTERNAL_EXECUTION_SUMMARY_H_ |
| |
| #include <map> |
| #include <string> |
| |
| #include "ceres/internal/port.h" |
| #include "ceres/mutex.h" |
| #include "ceres/wall_time.h" |
| |
| namespace ceres { |
| namespace internal { |
| |
| struct CallStatistics { |
| CallStatistics() : time(0.), calls(0) {} |
| double time; |
| int calls; |
| }; |
| |
| // Struct used by various objects to report statistics about their |
| // execution. |
| class ExecutionSummary { |
| public: |
| void IncrementTimeBy(const std::string& name, const double value) { |
| CeresMutexLock l(&mutex_); |
| CallStatistics& call_stats = statistics_[name]; |
| call_stats.time += value; |
| ++call_stats.calls; |
| } |
| |
| const std::map<std::string, CallStatistics>& statistics() const { |
| return statistics_; |
| } |
| |
| private: |
| Mutex mutex_; |
| std::map<std::string, CallStatistics> statistics_; |
| }; |
| |
| class ScopedExecutionTimer { |
| public: |
| ScopedExecutionTimer(const std::string& name, ExecutionSummary* summary) |
| : start_time_(WallTimeInSeconds()), name_(name), summary_(summary) {} |
| |
| ~ScopedExecutionTimer() { |
| summary_->IncrementTimeBy(name_, WallTimeInSeconds() - start_time_); |
| } |
| |
| private: |
| const double start_time_; |
| const std::string name_; |
| ExecutionSummary* summary_; |
| }; |
| |
| } // namespace internal |
| } // namespace ceres |
| |
| #endif // CERES_INTERNAL_EXECUTION_SUMMARY_H_ |