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/*
* Copyright (C) 2019 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.
*/
#pragma once
#include <stdint.h>
#include <unwindstack/Memory.h>
namespace unwindstack {
class MemoryFileAtOffset : public Memory {
public:
MemoryFileAtOffset() = default;
virtual ~MemoryFileAtOffset();
bool Init(const std::string& file, uint64_t offset, uint64_t size = UINT64_MAX);
uint8_t* GetPtr(size_t addr = 0) override { return addr < size_ ? data_ + addr : nullptr; }
size_t Read(uint64_t addr, void* dst, size_t size) override;
size_t Size() { return size_; }
void Clear() override;
protected:
size_t size_ = 0;
size_t offset_ = 0;
uint8_t* data_ = nullptr;
};
} // namespace unwindstack
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