Class IoBufferPool

libcppcryptfs/file/iobufferpool.h:60–85

};

class IoBufferPool {
private:
	mutex m_mutex;		
	static const size_t m_max_size = 70*1024*1024;	
	size_t m_current_size;
	list<IoBuffer*> m_buffers;

	IoBufferPool() : m_current_size(0) {};	

public:

	// the size below is to accomodate the maximum i/o buffer size + enough IVs to write up to 64MB
	static const size_t m_max_pool_buffer_size = ((MAX_IO_BUFFER_KB * 1024) / PLAIN_BS) * CIPHER_BS + ((64 * 1024 * 1024) / PLAIN_BS) * BLOCK_IV_LEN;

	static IoBufferPool& getInstance();

	// disallow copying and moving
	IoBufferPool(IoBufferPool const&) = delete;
	void operator=(IoBufferPool const&) = delete;
	IoBufferPool(IoBufferPool const&&) = delete;
	void operator=(IoBufferPool const&&) = delete;

	~IoBufferPool();
	IoBuffer *GetIoBuffer(size_t buffer_size, size_t ivbufer_size);
	void ReleaseIoBuffer(IoBuffer *pBuf);
};