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