97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
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// Ceres Solver - A fast non-linear least squares minimizer
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// Copyright 2015 Google Inc. All rights reserved.
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// http://ceres-solver.org/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: strandmark@google.com (Petter Strandmark)
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#include "ceres/wall_time.h"
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#ifdef CERES_USE_OPENMP
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#include <omp.h>
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#else
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#include <ctime>
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#endif
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#ifdef _WIN32
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#include <windows.h>
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#else
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#include <sys/time.h>
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#endif
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namespace ceres {
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namespace internal {
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double WallTimeInSeconds() {
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#ifdef CERES_USE_OPENMP
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return omp_get_wtime();
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#else
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#ifdef _WIN32
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return static_cast<double>(std::time(NULL));
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#else
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timeval time_val;
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gettimeofday(&time_val, NULL);
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return (time_val.tv_sec + time_val.tv_usec * 1e-6);
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#endif
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#endif
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}
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EventLogger::EventLogger(const std::string& logger_name)
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: start_time_(WallTimeInSeconds()),
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last_event_time_(start_time_),
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events_("") {
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StringAppendF(&events_,
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"\n%s\n Delta Cumulative\n",
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logger_name.c_str());
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}
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EventLogger::~EventLogger() {
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if (VLOG_IS_ON(3)) {
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AddEvent("Total");
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VLOG(2) << "\n" << events_ << "\n";
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}
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}
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void EventLogger::AddEvent(const std::string& event_name) {
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if (!VLOG_IS_ON(3)) {
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return;
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}
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const double current_time = WallTimeInSeconds();
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const double relative_time_delta = current_time - last_event_time_;
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const double absolute_time_delta = current_time - start_time_;
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last_event_time_ = current_time;
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StringAppendF(&events_,
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" %30s : %10.5f %10.5f\n",
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event_name.c_str(),
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relative_time_delta,
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absolute_time_delta);
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}
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} // namespace internal
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} // namespace ceres
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