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112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
#ifndef __LEDGER__
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#define __LEDGER__
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#include "Transaction.h"
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#include "types.h"
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#include "BitcoinUtil.h"
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#include "Hanko.h"
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#include "AccountState.h"
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#include "SHAMap.h"
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#include <boost/shared_ptr.hpp>
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#include <boost/enable_shared_from_this.hpp>
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#include <map>
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#include <list>
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class Ledger : public boost::enable_shared_from_this<Ledger>
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{ // The basic Ledger structure, can be opened, closed, or synching
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public:
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typedef boost::shared_ptr<Ledger> pointer;
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enum TransResult
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{
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TR_ERROR =-1,
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TR_SUCCESS =0,
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TR_NOTFOUND =1,
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TR_ALREADY =2,
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TR_BADTRANS =3, // the transaction itself is corrupt
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TR_BADACCT =4, // one of the accounts is invalid
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TR_INSUFF =5, // the sending(apply)/receiving(remove) account is broke
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TR_PASTASEQ =6, // account is past this transaction
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TR_PREASEQ =7, // account is missing transactions before this
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TR_BADLSEQ =8, // ledger too early
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TR_TOOSMALL =9, // amount is less than Tx fee
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};
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private:
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uint256 mHash, mParentHash, mTransHash, mAccountHash;
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uint64 mFeeHeld, mTimeStamp;
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uint32 mLedgerSeq;
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bool mClosed, mValidHash, mAccepted;
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SHAMap::pointer mTransactionMap, mAccountStateMap;
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mutable boost::recursive_mutex mLock;
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Ledger(const Ledger&); // no implementation
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Ledger& operator=(const Ledger&); // no implementation
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protected:
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Ledger(Ledger&, uint64 timestamp); // ledger after this one
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void updateHash();
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bool addAccountState(AccountState::pointer);
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bool updateAccountState(AccountState::pointer);
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bool addTransaction(Transaction::pointer);
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bool delTransaction(const uint256& id);
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static Ledger::pointer getSQL(const std::string& sqlStatement);
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public:
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Ledger(const uint160& masterID, uint64 startAmount); // used for the starting bootstrap ledger
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Ledger(const uint256 &parentHash, const uint256 &transHash, const uint256 &accountHash,
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uint64 feeHeld, uint64 timeStamp, uint32 ledgerSeq); // used for received ledgers
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void setClosed() { mClosed=true; }
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void setAccepted() { mAccepted=true; }
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bool isClosed() { return mClosed; }
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bool isAccepted() { return mAccepted; }
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// ledger signature operations
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void addRaw(Serializer &s);
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uint256 getHash();
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const uint256& getParentHash() const { return mParentHash; }
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const uint256& getTransHash() const { return mTransHash; }
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const uint256& getAccountHash() const { return mAccountHash; }
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uint64 getFeeHeld() const { return mFeeHeld; }
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uint64 getTimeStamp() const { return mTimeStamp; }
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uint32 getLedgerSeq() const { return mLedgerSeq; }
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// low level functions
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SHAMap::pointer peekTransactionMap() { return mTransactionMap; }
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SHAMap::pointer peekAccountStateMap() { return mAccountStateMap; }
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// mid level functions
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AccountState::pointer getAccountState(const uint160& acctID);
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Transaction::pointer getTransaction(const uint256& transID);
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uint64 getBalance(const uint160& acctID);
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// high level functions
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TransResult applyTransaction(Transaction::pointer trans);
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TransResult removeTransaction(Transaction::pointer trans);
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TransResult hasTransaction(Transaction::pointer trans);
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// database functions
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static void saveAcceptedLedger(Ledger::pointer);
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static Ledger::pointer loadByIndex(uint32 ledgerIndex);
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static Ledger::pointer loadByHash(const uint256& ledgerHash);
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Ledger::pointer closeLedger(uint64 timestamp);
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bool isCompatible(boost::shared_ptr<Ledger> other);
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bool signLedger(std::vector<unsigned char> &signature, const LocalHanko &hanko);
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static bool unitTest();
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};
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#endif
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