/*
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* Copyright (C) 2018 The Android Open Source Project
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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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*
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* Header file of an in-memory representation of DEX files.
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*/
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#ifndef ART_DEXLAYOUT_DEX_CONTAINER_H_
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#define ART_DEXLAYOUT_DEX_CONTAINER_H_
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#include <vector>
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namespace art {
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// Dex container holds the artifacts produced by dexlayout and contains up to two sections: a main
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// section and a data section.
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// This container may also hold metadata used for multi dex deduplication in the future.
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class DexContainer {
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public:
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virtual ~DexContainer() {}
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class Section {
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public:
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virtual ~Section() {}
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// Returns the start of the memory region.
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virtual uint8_t* Begin() = 0;
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// Size in bytes.
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virtual size_t Size() const = 0;
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// Resize the backing storage.
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virtual void Resize(size_t size) = 0;
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// Clear the container.
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virtual void Clear() = 0;
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// Returns the end of the memory region.
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uint8_t* End() {
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return Begin() + Size();
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}
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};
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// Vector backed section.
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class VectorSection : public Section {
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public:
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virtual ~VectorSection() {}
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uint8_t* Begin() override {
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return &data_[0];
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}
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size_t Size() const override {
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return data_.size();
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}
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void Resize(size_t size) override {
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data_.resize(size, 0u);
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}
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void Clear() override {
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data_.clear();
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}
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private:
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std::vector<uint8_t> data_;
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};
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virtual Section* GetMainSection() = 0;
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virtual Section* GetDataSection() = 0;
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virtual bool IsCompactDexContainer() const = 0;
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};
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} // namespace art
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#endif // ART_DEXLAYOUT_DEX_CONTAINER_H_
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