thin-provisioning-tools/caching/emitter.h

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2013-09-11 16:10:46 +05:30
#ifndef CACHE_EMITTER_H
#define CACHE_EMITTER_H
#include <boost/shared_ptr.hpp>
#include <string>
#include "persistent-data/block.h"
//----------------------------------------------------------------
namespace caching {
namespace pd = persistent_data;
class emitter {
public:
typedef boost::shared_ptr<emitter> ptr;
virtual ~emitter() {}
virtual void begin_superblock(std::string const &uuid,
pd::block_address block_size,
pd::block_address nr_cache_blocks,
std::string const &policy) = 0;
virtual void end_superblock() = 0;
virtual void begin_mappings() = 0;
virtual void end_mappings() = 0;
virtual void mapping(pd::block_address cblock,
pd::block_address oblock,
bool dirty) = 0;
virtual void begin_hints() = 0;
virtual void end_hints() = 0;
virtual void hint(pd::block_address cblock,
std::string const &data) = 0;
};
}
//----------------------------------------------------------------
#endif