86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
/* Copyright 2016 The TensorFlow Authors. All Rights Reserved.
|
|
|
|
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.
|
|
==============================================================================*/
|
|
|
|
// Low-level functionality for setting up a inference Session.
|
|
|
|
#ifndef TENSORFLOW_CONTRIB_SESSION_BUNDLE_SESSION_BUNDLE_H_
|
|
#define TENSORFLOW_CONTRIB_SESSION_BUNDLE_SESSION_BUNDLE_H_
|
|
|
|
#include <memory>
|
|
|
|
#include "tensorflow/contrib/session_bundle/manifest.pb.h"
|
|
#include "tensorflow/contrib/session_bundle/signature.h"
|
|
#include "tensorflow/core/lib/core/status.h"
|
|
#include "tensorflow/core/lib/core/stringpiece.h"
|
|
#include "tensorflow/core/protobuf/meta_graph.pb.h"
|
|
#include "tensorflow/core/protobuf/saver.pb.h"
|
|
#include "tensorflow/core/public/session.h"
|
|
#include "tensorflow/core/public/session_options.h"
|
|
|
|
namespace tensorflow {
|
|
namespace serving {
|
|
|
|
const char kMetaGraphDefFilename[] = "export.meta";
|
|
const char kAssetsDirectory[] = "assets";
|
|
const char kInitOpKey[] = "serving_init_op";
|
|
const char kAssetsKey[] = "serving_assets";
|
|
const char kGraphKey[] = "serving_graph";
|
|
|
|
// Data and objects loaded from a python Exporter export.
|
|
// WARNING(break-tutorial-inline-code): The following code snippet is
|
|
// in-lined in tutorials, please update tutorial documents accordingly
|
|
// whenever code changes.
|
|
struct SessionBundle {
|
|
std::unique_ptr<Session> session;
|
|
MetaGraphDef meta_graph_def;
|
|
|
|
// A TensorFlow Session does not Close itself on destruction. To avoid
|
|
// resource leaks, we explicitly call Close on Sessions that we create.
|
|
~SessionBundle() {
|
|
if (session) {
|
|
session->Close().IgnoreError();
|
|
}
|
|
}
|
|
|
|
SessionBundle(SessionBundle&&) = default;
|
|
SessionBundle() = default;
|
|
};
|
|
|
|
// Loads a manifest and initialized session using the output of an Exporter.
|
|
Status LoadSessionBundleFromPath(const SessionOptions& options,
|
|
const StringPiece export_dir,
|
|
SessionBundle* bundle);
|
|
|
|
// Similar to the LoadSessionBundleFromPath(), but also allows the session run
|
|
// invocations for the restore and init ops to be configured with
|
|
// tensorflow::RunOptions.
|
|
//
|
|
// This method is EXPERIMENTAL and may change or be removed.
|
|
Status LoadSessionBundleFromPathUsingRunOptions(
|
|
const SessionOptions& session_options, const RunOptions& run_options,
|
|
const StringPiece export_dir, SessionBundle* bundle);
|
|
|
|
// Sanity checks whether the directory looks like an export directory. Note that
|
|
// we don't try to load any data in this method.
|
|
//
|
|
// If the method returns false this is definitely not an export directory, if it
|
|
// returns true, it is no guarantee that the model will load.
|
|
bool IsPossibleExportDirectory(const StringPiece export_dir);
|
|
|
|
} // namespace serving
|
|
} // namespace tensorflow
|
|
|
|
#endif // TENSORFLOW_CONTRIB_SESSION_BUNDLE_SESSION_BUNDLE_H_
|