40 lines
957 B
C
40 lines
957 B
C
|
#ifndef THIN_PROVISIONING_FIXED_CHUNK_STREAM_H
|
||
|
|
#define THIN_PROVISIONING_FIXED_CHUNK_STREAM_H
|
||
|
|
|
||
|
|
#include "thin-provisioning/chunk_stream.h"
|
||
|
|
|
||
|
|
//----------------------------------------------------------------
|
||
|
|
|
||
|
|
namespace thin_provisioning {
|
||
|
|
class fixed_chunk_stream : public chunk_stream {
|
||
|
|
public:
|
||
|
|
fixed_chunk_stream(chunk_stream &stream, unsigned chunk_size);
|
||
|
|
~fixed_chunk_stream();
|
||
|
|
|
||
|
|
virtual bcache::block_address size() const;
|
||
|
|
virtual void rewind();
|
||
|
|
virtual bool next(bcache::block_address count = 1ull);
|
||
|
|
virtual bool eof() const;
|
||
|
|
virtual chunk const &get();
|
||
|
|
virtual void put(chunk const &c);
|
||
|
|
|
||
|
|
private:
|
||
|
|
bool next_big_chunk();
|
||
|
|
bool advance_one();
|
||
|
|
void put_big_chunk();
|
||
|
|
|
||
|
|
bcache::block_address index_;
|
||
|
|
|
||
|
|
chunk_stream &stream_;
|
||
|
|
unsigned chunk_size_;
|
||
|
|
chunk const *big_chunk_;
|
||
|
|
|
||
|
|
uint8_t *little_b_, *little_e_, *last_hashed_;
|
||
|
|
chunk little_chunk_;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------
|
||
|
|
|
||
|
|
#endif
|