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// 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: strandmark@google.com (Petter Strandmark)
#include "ceres/wall_time.h"
#include "ceres/internal/config.h"
#ifdef CERES_USE_OPENMP
#include <omp.h>
#else
#include <ctime>
#endif
#ifdef _WIN32
#include <windows.h>
#else
#include <sys/time.h>
#endif
namespace ceres {
namespace internal {
double WallTimeInSeconds() {
#ifdef CERES_USE_OPENMP
return omp_get_wtime();
#else
#ifdef _WIN32
LARGE_INTEGER count;
LARGE_INTEGER frequency;
QueryPerformanceCounter(&count);
QueryPerformanceFrequency(&frequency);
return static_cast<double>(count.QuadPart) /
static_cast<double>(frequency.QuadPart);
#else
timeval time_val;
gettimeofday(&time_val, nullptr);
return (time_val.tv_sec + time_val.tv_usec * 1e-6);
#endif
#endif
}
EventLogger::EventLogger(const std::string& logger_name) {
if (!VLOG_IS_ON(3)) {
return;
}
start_time_ = WallTimeInSeconds();
last_event_time_ = start_time_;
events_ = StringPrintf(
"\n%s\n Delta Cumulative\n",
logger_name.c_str());
}
EventLogger::~EventLogger() {
if (!VLOG_IS_ON(3)) {
return;
}
AddEvent("Total");
VLOG(3) << "\n" << events_ << "\n";
}
void EventLogger::AddEvent(const std::string& event_name) {
if (!VLOG_IS_ON(3)) {
return;
}
const double current_time = WallTimeInSeconds();
const double relative_time_delta = current_time - last_event_time_;
const double absolute_time_delta = current_time - start_time_;
last_event_time_ = current_time;
StringAppendF(&events_,
" %30s : %10.5f %10.5f\n",
event_name.c_str(),
relative_time_delta,
absolute_time_delta);
}
} // namespace internal
} // namespace ceres
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