1/**
2 * Copyright (c) Glow Contributors. See CONTRIBUTORS file.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef GLOW_TOOLS_LOADER_EXECUTOR_CORE_H
18#define GLOW_TOOLS_LOADER_EXECUTOR_CORE_H
19
20#include "Loader.h"
21#include "glow/Graph/Nodes.h"
22
23namespace glow {
24class PostProcessOutputDataExtension {
25public:
26 /// Called once per mini-batch after network is executed to post process
27 /// output(s).
28 virtual int
29 processOutputs(const llvm::StringMap<Placeholder *> &PHM,
30 PlaceholderBindings &bindings,
31 VecVecRef<std::string> inputImageBatchFilenames) = 0;
32 virtual ~PostProcessOutputDataExtension(){};
33};
34
35using PostProcessExtFuncPtr =
36 std::function<std::unique_ptr<PostProcessOutputDataExtension>()>;
37
38class PreProcessInputDataExtension {
39public:
40 /// Called once per batch after images are loaded in to Tensor.
41 virtual void processInputTensor(llvm::ArrayRef<Tensor *> inputImageData,
42 size_t startId, size_t endId,
43 size_t batchSz) = 0;
44 virtual ~PreProcessInputDataExtension(){};
45};
46
47class Executor final {
48public:
49 Executor(std::string appName, int argc, char **argv);
50 Executor() = delete;
51 Executor(const Executor &) = delete;
52 Executor &operator=(const Executor &) = delete;
53
54 /// Registers a Loader Extension that will be invoked after model is
55 /// loaded. If multiple extensions are registered they will be executed in
56 /// order they were registered.
57 void registerLoaderExtension(
58 std::function<std::unique_ptr<LoaderExtension>()> func);
59 /// Registers an extension that will be invoked on Tensor containing current
60 /// batch of input data. If multiple extensions are registered they will be
61 /// executed in order they were registered.
62 /// A new instance of the extension will be created for each thread.
63 void registerInputDataPreProcessingExtension(
64 std::function<std::unique_ptr<PreProcessInputDataExtension>()> func);
65 /// Registers extension that will be invoked for each execution of the
66 /// network. If multiple extensions are registered they will be executed in
67 /// order they were registered.
68 /// A new instance of the extension will be created for each thread.
69 void registerPostProcessOutputExtension(PostProcessExtFuncPtr func);
70 /// This will parse command line, load, build and execute a network.
71 /// Returns /p 0 if no errors occured, others none zero value.
72 int executeNetwork();
73
74private:
75 /// Iterates over lambda expressions and registers them with each instance of
76 /// a loader in main dispatch loop.
77 void addLoaderExtensions(Loader &ld);
78
79private:
80 std::vector<std::function<std::unique_ptr<PreProcessInputDataExtension>()>>
81 ppInputDataExtensions_;
82 std::vector<PostProcessExtFuncPtr> ppOutputDataExtensions_;
83 std::vector<std::function<std::unique_ptr<LoaderExtension>()>>
84 loaderextensions_;
85 std::string appName_;
86};
87
88} // namespace glow
89#endif // GLOW_TOOLS_LOADER_EXECUTOR_CORE_H
90