memorybuffer.h

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#ifndef _A_UTILS_UTIL_MEMORY_MEMORYBUFFER_INCLUDED_
#define _A_UTILS_UTIL_MEMORY_MEMORYBUFFER_INCLUDED_
 
#include <memory>
 
namespace a_util {
namespace memory {
class MemoryBuffer {
public:
    MemoryBuffer();

    MemoryBuffer(std::size_t initial_size);

    MemoryBuffer(void* buffer, std::size_t size);

    ~MemoryBuffer();

    MemoryBuffer(const MemoryBuffer& other);

    MemoryBuffer& operator=(const MemoryBuffer& other);

    bool allocate(std::size_t new_size);

    void reset();

    std::size_t getSize() const;

    void* getPtr() const;

    void attach(void* buffer, std::size_t size);

    void swap(MemoryBuffer& other);
 
private:
    struct Implementation;
    std::unique_ptr<Implementation> _impl;
};

bool operator==(const MemoryBuffer& lhs, const MemoryBuffer& rhs);

bool operator!=(const MemoryBuffer& lhs, const MemoryBuffer& rhs);
 
} // namespace memory
} // namespace a_util
 
#endif // _A_UTILS_UTIL_MEMORY_MEMORYBUFFER_INCLUDED_