Files
xahaud/src/HashedObject.h
JoelKatz afe016415e Ensure all dirty SHA nodes are fully written before writing the ledger header.
To avoid a performance penalty, write accountstate nodes while we're waiting.
2012-10-16 06:53:06 -07:00

67 lines
1.4 KiB
C++

#ifndef __HASHEDOBJECT__
#define __HASHEDOBJECT__
#include <vector>
#include <boost/thread/mutex.hpp>
#include <boost/thread/condition_variable.hpp>
#include "types.h"
#include "uint256.h"
#include "ScopedLock.h"
#include "TaggedCache.h"
enum HashedObjectType
{
hotUNKNOWN = 0,
hotLEDGER = 1,
hotTRANSACTION = 2,
hotACCOUNT_NODE = 3,
hotTRANSACTION_NODE = 4
};
class HashedObject
{
public:
typedef boost::shared_ptr<HashedObject> pointer;
HashedObjectType mType;
uint256 mHash;
uint32 mLedgerIndex;
std::vector<unsigned char> mData;
HashedObject(HashedObjectType type, uint32 index, const std::vector<unsigned char>& data, const uint256& hash) :
mType(type), mHash(hash), mLedgerIndex(index), mData(data) { ; }
const std::vector<unsigned char>& getData() { return mData; }
const uint256& getHash() { return mHash; }
HashedObjectType getType() { return mType; }
uint32 getIndex() { return mLedgerIndex; }
};
class HashedObjectStore
{
protected:
TaggedCache<uint256, HashedObject> mCache;
boost::mutex mWriteMutex;
boost::condition_variable mWriteCondition;
std::vector< boost::shared_ptr<HashedObject> > mWriteSet;
bool mWritePending;
public:
HashedObjectStore(int cacheSize, int cacheAge);
bool store(HashedObjectType type, uint32 index, const std::vector<unsigned char>& data,
const uint256& hash);
HashedObject::pointer retrieve(const uint256& hash);
void bulkWrite();
void waitWrite();
};
#endif