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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.
*/
#ifndef _LIBUNWINDSTACK_MEMORY_BUFFER_H
#define _LIBUNWINDSTACK_MEMORY_BUFFER_H
#include <stdint.h>
#include <string>
#include <vector>
#include <unwindstack/Memory.h>
namespace unwindstack {
class MemoryBuffer : public Memory {
public:
MemoryBuffer() = default;
virtual ~MemoryBuffer() { free(raw_); }
size_t Read(uint64_t addr, void* dst, size_t size) override;
uint8_t* GetPtr(size_t offset) override;
bool Resize(size_t size) {
void* new_raw = realloc(raw_, size);
if (new_raw == nullptr) {
free(raw_);
raw_ = nullptr;
size_ = 0;
return false;
}
raw_ = reinterpret_cast<uint8_t*>(new_raw);
size_ = size;
return true;
}
uint64_t Size() { return size_; }
private:
uint8_t* raw_ = nullptr;
size_t size_ = 0;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_MEMORY_BUFFER_H
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