70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
// Copyright 2010-2022 Google LLC
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "ortools/math_opt/cpp/update_tracker.h"
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#include <memory>
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#include <optional>
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#include "absl/status/status.h"
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#include "absl/status/statusor.h"
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#include "ortools/base/logging.h"
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#include "ortools/math_opt/model.pb.h"
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#include "ortools/math_opt/storage/model_storage.h"
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namespace operations_research {
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namespace math_opt {
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UpdateTracker::~UpdateTracker() {
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const std::shared_ptr<ModelStorage> storage = storage_.lock();
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// If the model has already been destroyed, the update tracker has been
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// automatically cleaned.
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if (storage != nullptr) {
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storage->DeleteUpdateTracker(update_tracker_);
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}
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}
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UpdateTracker::UpdateTracker(const std::shared_ptr<ModelStorage>& storage)
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: storage_(ABSL_DIE_IF_NULL(storage)),
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update_tracker_(storage->NewUpdateTracker()) {}
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absl::StatusOr<std::optional<ModelUpdateProto>>
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UpdateTracker::ExportModelUpdate() {
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const std::shared_ptr<ModelStorage> storage = storage_.lock();
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if (storage == nullptr) {
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return absl::InvalidArgumentError(internal::kModelIsDestroyed);
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}
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return storage->ExportModelUpdate(update_tracker_);
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}
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absl::Status UpdateTracker::AdvanceCheckpoint() {
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const std::shared_ptr<ModelStorage> storage = storage_.lock();
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if (storage == nullptr) {
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return absl::InvalidArgumentError(internal::kModelIsDestroyed);
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}
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storage->AdvanceCheckpoint(update_tracker_);
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return absl::OkStatus();
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}
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absl::StatusOr<ModelProto> UpdateTracker::ExportModel() const {
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const std::shared_ptr<ModelStorage> storage = storage_.lock();
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if (storage == nullptr) {
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return absl::InvalidArgumentError(internal::kModelIsDestroyed);
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}
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return storage->ExportModel();
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}
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} // namespace math_opt
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} // namespace operations_research
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