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Diffstat (limited to 'internal/ceres/execution_summary.h')
-rw-r--r-- | internal/ceres/execution_summary.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/internal/ceres/execution_summary.h b/internal/ceres/execution_summary.h new file mode 100644 index 0000000..29bdc69 --- /dev/null +++ b/internal/ceres/execution_summary.h @@ -0,0 +1,90 @@ +// Ceres Solver - A fast non-linear least squares minimizer +// Copyright 2013 Google Inc. All rights reserved. +// http://code.google.com/p/ceres-solver/ +// +// 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/wall_time.h" +#include "ceres/mutex.h" + +namespace ceres { +namespace internal { + +// Struct used by various objects to report statistics and other +// information about their execution. e.g., ExecutionSummary::times +// can be used for reporting times associated with various activities. +class ExecutionSummary { + public: + void IncrementTimeBy(const string& name, const double value) { + CeresMutexLock l(×_mutex_); + times_[name] += value; + } + + void IncrementCall(const string& name) { + CeresMutexLock l(&calls_mutex_); + calls_[name] += 1; + } + + const map<string, double>& times() const { return times_; } + const map<string, int>& calls() const { return calls_; } + + private: + Mutex times_mutex_; + map<string, double> times_; + + Mutex calls_mutex_; + map<string, int> calls_; +}; + +class ScopedExecutionTimer { + public: + ScopedExecutionTimer(const string& name, ExecutionSummary* summary) + : start_time_(WallTimeInSeconds()), + name_(name), + summary_(summary) {} + + ~ScopedExecutionTimer() { + summary_->IncrementTimeBy(name_, WallTimeInSeconds() - start_time_); + } + + private: + const double start_time_; + const string name_; + ExecutionSummary* summary_; +}; + +} // namespace internal +} // namespace ceres + +#endif // CERES_INTERNAL_EXECUTION_SUMMARY_H_ |