internal/ceres/minimizer.cc

// Ceres Solver - A fast non-linear least squares minimizer
// Copyright 2010, 2011, 2012 Google Inc. All rights reserved.
// http://code.google.com/p/ceres-solver/
//
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//   this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
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// Author: sameeragarwal@google.com (Sameer Agarwal)

#include "ceres/minimizer.h"
#include "ceres/types.h"
#include "glog/logging.h"

namespace ceres {
namespace internal {

Minimizer::~Minimizer() {}

bool Minimizer::RunCallbacks(const vector<IterationCallback*> callbacks,
                             const IterationSummary& iteration_summary,
                             Solver::Summary* summary) {
  CallbackReturnType status = SOLVER_CONTINUE;
  int i = 0;
  while (status == SOLVER_CONTINUE && i < callbacks.size()) {
    status = (*callbacks[i])(iteration_summary);
    ++i;
  }
  switch (status) {
    case SOLVER_CONTINUE:
      return true;
    case SOLVER_TERMINATE_SUCCESSFULLY:
      summary->termination_type = USER_SUCCESS;
      VLOG(1) << "Terminating: User callback returned USER_SUCCESS.";
      return false;
    case SOLVER_ABORT:
      summary->termination_type = USER_FAILURE;
      VLOG(1) << "Terminating: User callback returned  USER_ABORT.";
      return false;
    default:
      LOG(FATAL) << "Unknown type of user callback status";
  }
  return false;
}

}  // namespace internal
}  // namespace ceres