1// Ceres Solver - A fast non-linear least squares minimizer
2// Copyright 2010, 2011, 2012 Google Inc. All rights reserved.
3// http://code.google.com/p/ceres-solver/
4//
5// Redistribution and use in source and binary forms, with or without
6// modification, are permitted provided that the following conditions are met:
7//
8// * Redistributions of source code must retain the above copyright notice,
9//   this list of conditions and the following disclaimer.
10// * Redistributions in binary form must reproduce the above copyright notice,
11//   this list of conditions and the following disclaimer in the documentation
12//   and/or other materials provided with the distribution.
13// * Neither the name of Google Inc. nor the names of its contributors may be
14//   used to endorse or promote products derived from this software without
15//   specific prior written permission.
16//
17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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26// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27// POSSIBILITY OF SUCH DAMAGE.
28//
29// Author: sameeragarwal@google.com (Sameer Agarwal)
30
31#include "ceres/minimizer.h"
32#include "ceres/types.h"
33#include "glog/logging.h"
34
35namespace ceres {
36namespace internal {
37
38Minimizer::~Minimizer() {}
39
40bool Minimizer::RunCallbacks(const Minimizer::Options& options,
41                             const IterationSummary& iteration_summary,
42                             Solver::Summary* summary) {
43  const bool is_not_silent = !options.is_silent;
44  CallbackReturnType status = SOLVER_CONTINUE;
45  int i = 0;
46  while (status == SOLVER_CONTINUE && i < options.callbacks.size()) {
47    status = (*options.callbacks[i])(iteration_summary);
48    ++i;
49  }
50  switch (status) {
51    case SOLVER_CONTINUE:
52      return true;
53    case SOLVER_TERMINATE_SUCCESSFULLY:
54      summary->termination_type = USER_SUCCESS;
55      summary->message = "User callback returned SOLVER_TERMINATE_SUCCESSFULLY.";
56      VLOG_IF(1, is_not_silent) << "Terminating: " << summary->message;
57      return false;
58    case SOLVER_ABORT:
59      summary->termination_type = USER_FAILURE;
60      summary->message = "User callback returned SOLVER_ABORT.";
61      VLOG_IF(1, is_not_silent) << "Terminating: " << summary->message;
62      return false;
63    default:
64      LOG(FATAL) << "Unknown type of user callback status";
65  }
66  return false;
67}
68
69}  // namespace internal
70}  // namespace ceres
71