60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
// Copyright 2010-2021 Google LLC
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "ortools/math_opt/cpp/update_tracker.h"
|
|
|
|
#include <memory>
|
|
#include <optional>
|
|
|
|
#include "ortools/base/logging.h"
|
|
#include "ortools/math_opt/core/model_storage.h"
|
|
#include "ortools/math_opt/model.pb.h"
|
|
|
|
namespace operations_research {
|
|
namespace math_opt {
|
|
|
|
UpdateTracker::~UpdateTracker() {
|
|
const std::shared_ptr<ModelStorage> storage = storage_.lock();
|
|
|
|
// If the model has already been destroyed, the update tracker has been
|
|
// automatically cleaned.
|
|
if (storage != nullptr) {
|
|
storage->DeleteUpdateTracker(update_tracker_);
|
|
}
|
|
}
|
|
|
|
UpdateTracker::UpdateTracker(const std::shared_ptr<ModelStorage>& storage)
|
|
: storage_(ABSL_DIE_IF_NULL(storage)),
|
|
update_tracker_(storage->NewUpdateTracker()) {}
|
|
|
|
std::optional<ModelUpdateProto> UpdateTracker::ExportModelUpdate() {
|
|
const std::shared_ptr<ModelStorage> storage = storage_.lock();
|
|
CHECK(storage != nullptr) << internal::kModelIsDestroyed;
|
|
return storage->ExportModelUpdate(update_tracker_);
|
|
}
|
|
|
|
void UpdateTracker::Checkpoint() {
|
|
const std::shared_ptr<ModelStorage> storage = storage_.lock();
|
|
CHECK(storage != nullptr) << internal::kModelIsDestroyed;
|
|
storage->Checkpoint(update_tracker_);
|
|
}
|
|
|
|
ModelProto UpdateTracker::ExportModel() const {
|
|
const std::shared_ptr<ModelStorage> storage = storage_.lock();
|
|
CHECK(storage != nullptr) << internal::kModelIsDestroyed;
|
|
return storage->ExportModel();
|
|
}
|
|
|
|
} // namespace math_opt
|
|
} // namespace operations_research
|