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/*
* SecureQueue
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_SECURE_QUEUE_H__
#define BOTAN_SECURE_QUEUE_H__
#include <botan/data_src.h>
#include <botan/filter.h>
namespace Botan {
/**
* A queue that knows how to zeroize itself
*/
class BOTAN_DLL SecureQueue : public Fanout_Filter, public DataSource
{
public:
std::string name() const { return "Queue"; }
void write(const byte[], u32bit);
u32bit read(byte[], u32bit);
u32bit peek(byte[], u32bit, u32bit = 0) const;
bool end_of_data() const;
u32bit size() const;
bool attachable() { return false; }
SecureQueue& operator=(const SecureQueue&);
SecureQueue();
SecureQueue(const SecureQueue&);
~SecureQueue() { destroy(); }
private:
void destroy();
class SecureQueueNode* head;
class SecureQueueNode* tail;
};
}
#endif
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