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114 lines
3.8 KiB
114 lines
3.8 KiB
// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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//
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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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#pragma once
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#include <memory>
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#include <string>
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#include <unordered_map>
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#include <vector>
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#include "paddle/fluid/framework/op_registry.h"
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#include "paddle/fluid/framework/reader.h"
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namespace paddle {
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namespace operators {
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namespace reader {
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static constexpr char kFileFormatSeparator[] = ".";
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using FileReaderCreator =
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std::function<framework::ReaderBase*(const std::string&)>;
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std::unordered_map<std::string, FileReaderCreator>& FileReaderRegistry();
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template <typename Reader>
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int RegisterFileReader(const std::string& filetype) {
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FileReaderRegistry()[filetype] = [](const std::string& fn) {
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return new Reader(fn);
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};
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return 0;
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}
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std::unique_ptr<framework::ReaderBase> CreateReaderByFileName(
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const std::string& file_name);
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extern std::vector<framework::DDim> RestoreShapes(
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const std::vector<int>& shape_concat, const std::vector<int>& ranks);
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class FileReaderMakerBase : public framework::OpProtoAndCheckerMaker {
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public:
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void Make() final;
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protected:
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virtual void Apply() = 0;
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};
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class FileReaderInferShape : public framework::InferShapeBase {
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public:
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void operator()(framework::InferShapeContext* ctx) const override;
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};
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class FileReaderInferVarType : public framework::VarTypeInference {
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public:
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void operator()(framework::InferVarTypeContext* ctx) const override;
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};
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// general infershape for decorated reader
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class DecoratedReaderInferShape : public framework::InferShapeBase {
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public:
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void operator()(framework::InferShapeContext* ctx) const override;
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};
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// general var type inference for decorated reader
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class DecoratedReaderInferVarType : public framework::VarTypeInference {
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public:
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void operator()(framework::InferVarTypeContext* ctx) const override;
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};
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class DecoratedReaderMakerBase : public framework::OpProtoAndCheckerMaker {
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public:
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void Make() final;
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protected:
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virtual void Apply() = 0;
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};
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} // namespace reader
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} // namespace operators
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} // namespace paddle
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#define REGISTER_FILE_READER_OPERATOR(op_name, ...) \
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REGISTER_OPERATOR(op_name, __VA_ARGS__, \
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paddle::operators::reader::FileReaderInferShape, \
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paddle::framework::EmptyGradOpMaker, \
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paddle::operators::reader::FileReaderInferVarType)
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#define REGISTER_DECORATED_READER_OPERATOR(op_name, ...) \
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REGISTER_OPERATOR(op_name, __VA_ARGS__, \
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paddle::operators::reader::DecoratedReaderInferShape, \
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paddle::framework::EmptyGradOpMaker, \
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paddle::operators::reader::DecoratedReaderInferVarType)
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#define REGISTER_FILE_READER(_filetype, _reader) \
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STATIC_ASSERT_GLOBAL_NAMESPACE( \
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_reg_file_reader_##_filetype, \
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"Must use REGISTER_FILE_READER in global namespace"); \
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int TouchFileReader##_filetype() { return 0; } \
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int _reg_file_reader_entry_##filetype = \
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paddle::operators::reader::RegisterFileReader<_reader>(#_filetype)
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#define USE_FILE_READER(filetype) \
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extern int TouchFileReader##filetype(); \
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static int _use_##filetype = TouchFileReader##filetype()
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