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