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/*************************************************
* File Tree Walking EntropySource Header File *
* (C) 1999-2008 Jack Lloyd *
*************************************************/
#ifndef BOTAN_ENTROPY_SRC_FTW_H__
#define BOTAN_ENTROPY_SRC_FTW_H__
#include <botan/entropy_src.h>
namespace Botan {
/*************************************************
* File Tree Walking Entropy Source *
*************************************************/
class BOTAN_DLL FTW_EntropySource : public EntropySource
{
public:
std::string name() const { return "Proc Walker"; }
u32bit slow_poll(byte buf[], u32bit len);
u32bit fast_poll(byte buf[], u32bit len);
FTW_EntropySource(const std::string& root_dir);
~FTW_EntropySource();
class File_Descriptor_Source
{
public:
virtual int next_fd() = 0;
virtual ~File_Descriptor_Source() {}
};
private:
std::string path;
File_Descriptor_Source* dir;
};
}
#endif
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