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Remove obsolete ledger functionality. Update to use new code.

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This commit is contained in:
JoelKatz
2012-04-23 15:55:58 -07:00
parent b3773f1d52
commit 59872be189
2 changed files with 24 additions and 183 deletions
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186
src/Ledger.cpp
View File

@@ -22,10 +22,11 @@ Ledger::Ledger(const NewcoinAddress& masterID, uint64 startAmount) :
mTransactionMap = boost::make_shared<SHAMap>();
mAccountStateMap = boost::make_shared<SHAMap>();
// special case: put coins in root account
AccountState::pointer startAccount = boost::make_shared<AccountState>(masterID);
startAccount->credit(startAmount);
if (!addAccountState(startAccount))
assert(false);
startAccount->peekSLE().setIFieldU64(sfBalance, startAmount);
startAccount->peekSLE().setIFieldU32(sfSequence, 1);
writeBack(lepCREATE, startAccount->getSLE());
}
Ledger::Ledger(const uint256 &parentHash, const uint256 &transHash, const uint256 &accountHash,
@@ -116,7 +117,7 @@ AccountState::pointer Ledger::getAccountState(const NewcoinAddress& accountID)
std::cerr << "Ledger:getAccountState(" << accountID.humanAccountID() << ")" << std::endl;
#endif
ScopedLock l(mTransactionMap->Lock());
SHAMapItem::pointer item = mAccountStateMap->peekItem(accountID.getAccountID().to256());
SHAMapItem::pointer item = mAccountStateMap->peekItem(Ledger::getAccountRootIndex(accountID));
if (!item)
{
#ifdef DEBUG
@@ -124,30 +125,10 @@ AccountState::pointer Ledger::getAccountState(const NewcoinAddress& accountID)
#endif
return AccountState::pointer();
}
return boost::make_shared<AccountState>(item->getData());
}
uint64 Ledger::getBalance(const NewcoinAddress& accountID) const
{
ScopedLock l(mTransactionMap->Lock());
SHAMapItem::pointer item = mAccountStateMap->peekItem(accountID.getAccountID().to256());
if (!item) return 0;
return AccountState(item->getData()).getBalance();
}
bool Ledger::updateAccountState(AccountState::pointer state)
{
assert(!mAccepted);
return mAccountStateMap->updateGiveItem(boost::make_shared<SHAMapItem>(state->getAccountID().getAccountID(),
state->getRaw()), false);
}
bool Ledger::addAccountState(AccountState::pointer state)
{
assert(!mAccepted);
assert( (state->getBalance()==0) || (state->getSeq()>0) );
SHAMapItem::pointer item = boost::make_shared<SHAMapItem>(state->getAccountID().getAccountID(), state->getRaw());
return mAccountStateMap->addGiveItem(item, false);
SerializedLedgerEntry::pointer sle =
boost::make_shared<SerializedLedgerEntry>(item->peekSerializer(), item->getTag());
if (sle->getType() != ltACCOUNT_ROOT) return AccountState::pointer();
return boost::make_shared<AccountState>(sle);
}
bool Ledger::addTransaction(Transaction::pointer trans)
@@ -193,145 +174,6 @@ Transaction::pointer Ledger::getTransaction(const uint256& transID) const
return txn;
}
Ledger::TransResult Ledger::applyTransaction(Transaction::pointer trans)
{
assert(!mAccepted);
boost::recursive_mutex::scoped_lock sl(mLock);
if (trans->getSourceLedger() > mLedgerSeq) return TR_BADLSEQ;
if (trans->getAmount()<trans->getFee())
{
#ifdef DEBUG
std::cerr << "Transaction for " << trans->getAmount() << ", but fee is " <<
trans->getFee() << std::endl;
#endif
return TR_TOOSMALL;
}
if(!mTransactionMap || !mAccountStateMap) return TR_ERROR;
try
{
// already applied?
Transaction::pointer dupTrans=getTransaction(trans->getID());
if(dupTrans) return TR_ALREADY;
// accounts exist?
AccountState::pointer fromAccount=getAccountState(trans->getFromAccount());
AccountState::pointer toAccount=getAccountState(trans->getToAccount());
// temporary code -- if toAccount doesn't exist but fromAccount does, create it
if(!!fromAccount && !toAccount)
{
toAccount=boost::make_shared<AccountState>(trans->getToAccount());
toAccount->incSeq(); // an account in a ledger has a sequence of 1
updateAccountState(toAccount);
}
if(!fromAccount || !toAccount) return TR_BADACCT;
// pass sanity checks?
if(fromAccount->getBalance()<trans->getAmount())
{
#ifdef DEBUG
std::cerr << "Transaction for " << trans->getAmount() << ", but account has " <<
fromAccount->getBalance() << std::endl;
#endif
return TR_INSUFF;
}
#ifdef DEBUG
if(fromAccount->getSeq()!=trans->getFromAccountSeq())
std::cerr << "aSeq=" << fromAccount->getSeq() << ", tSeq=" << trans->getFromAccountSeq() << std::endl;
#endif
if(fromAccount->getSeq()>trans->getFromAccountSeq()) return TR_PASTASEQ;
if(fromAccount->getSeq()<trans->getFromAccountSeq()) return TR_PREASEQ;
// apply
fromAccount->charge(trans->getAmount());
fromAccount->incSeq();
toAccount->credit(trans->getAmount()-trans->getFee());
mFeeHeld+=trans->getFee();
trans->setStatus(INCLUDED, mLedgerSeq);
updateAccountState(fromAccount);
updateAccountState(toAccount);
addTransaction(trans);
return TR_SUCCESS;
}
catch (SHAMapException)
{
return TR_ERROR;
}
}
Ledger::TransResult Ledger::removeTransaction(Transaction::pointer trans)
{ // high-level - reverse application of transaction
assert(!mAccepted);
boost::recursive_mutex::scoped_lock sl(mLock);
if(!mTransactionMap || !mAccountStateMap) return TR_ERROR;
try
{
Transaction::pointer ourTrans=getTransaction(trans->getID());
if(!ourTrans) return TR_NOTFOUND;
// accounts exist
AccountState::pointer fromAccount=getAccountState(trans->getFromAccount());
AccountState::pointer toAccount=getAccountState(trans->getToAccount());
if(!fromAccount || !toAccount) return TR_BADACCT;
// pass sanity checks?
if(toAccount->getBalance()<trans->getAmount()) return TR_INSUFF;
if(fromAccount->getSeq()!=(trans->getFromAccountSeq()+1)) return TR_PASTASEQ;
// reverse
fromAccount->credit(trans->getAmount());
fromAccount->decSeq();
toAccount->charge(trans->getAmount()-trans->getFee());
mFeeHeld-=trans->getFee();
trans->setStatus(REMOVED, mLedgerSeq);
if(!delTransaction(trans->getID()))
{
assert(false);
return TR_ERROR;
}
updateAccountState(fromAccount);
updateAccountState(toAccount);
return TR_SUCCESS;
}
catch (SHAMapException)
{
return TR_ERROR;
}
}
Ledger::TransResult Ledger::hasTransaction(Transaction::pointer trans)
{ // Is this transaction in this ledger? If not, could it go in it?
boost::recursive_mutex::scoped_lock sl(mLock);
if(mTransactionMap==NULL) return TR_ERROR;
try
{
Transaction::pointer t=getTransaction(trans->getID());
if(!!t) return TR_ALREADY;
if(trans->getSourceLedger()>mLedgerSeq) return TR_BADLSEQ;
AccountState::pointer fromAccount=getAccountState(trans->getFromAccount());
if(!fromAccount) return TR_BADACCT; // cannot send from non-existent account
// may be in a previous ledger
if(fromAccount->getSeq()>trans->getFromAccountSeq()) return TR_PASTASEQ;
if(fromAccount->getSeq()<trans->getFromAccountSeq()) return TR_PREASEQ;
if(fromAccount->getBalance()<trans->getAmount()) return TR_INSUFF;
return TR_NOTFOUND;
}
catch (SHAMapException)
{
return TR_ERROR;
}
}
Ledger::pointer Ledger::closeLedger(uint64 timeStamp)
{ // close this ledger, return a pointer to the next ledger
// CAUTION: New ledger needs its SHAMap's connected to storage
@@ -342,13 +184,13 @@ Ledger::pointer Ledger::closeLedger(uint64 timeStamp)
void LocalAccount::syncLedger()
{
AccountState::pointer as=theApp->getMasterLedger().getAccountState(getAddress());
if(!as) mLgrBalance=0;
AccountState::pointer as = theApp->getMasterLedger().getCurrentLedger()->getAccountState(getAddress());
if(!as) mLgrBalance = 0;
else
{
mLgrBalance=as->getBalance();
if( (mLgrBalance!=0) && (mTxnSeq==0) ) mTxnSeq=1;
if(mTxnSeq<as->getSeq()) mTxnSeq=as->getSeq();
mLgrBalance = as->getBalance();
if ( (mLgrBalance != 0) && (mTxnSeq == 0) ) mTxnSeq = 1;
if (mTxnSeq < as->getSeq()) mTxnSeq = as->getSeq();
}
}

21
src/Ledger.h
View File

@@ -10,12 +10,10 @@
#include "../json/value.h"
#include "Transaction.h"
#include "AccountState.h"
#include "types.h"
#include "BitcoinUtil.h"
#include "Hanko.h"
#include "AccountState.h"
#include "SHAMap.h"
#include "SerializedLedger.h"
enum LedgerStateParms
@@ -73,8 +71,6 @@ protected:
Ledger(Ledger& previous, uint64 timestamp); // ledger after this one
void updateHash();
bool addAccountState(AccountState::pointer);
bool updateAccountState(AccountState::pointer);
bool addTransaction(Transaction::pointer);
bool addTransaction(const uint256& id, const Serializer& txn);
bool delTransaction(const uint256& id);
@@ -121,15 +117,10 @@ public:
bool hasTransaction(const uint256& TransID) const;
Transaction::pointer getTransaction(const uint256& transID) const;
// OLD high level functions
uint64 getBalance(const NewcoinAddress& acctID) const;
AccountState::pointer getAccountState(const NewcoinAddress& acctID);
TransResult applyTransaction(Transaction::pointer trans);
TransResult removeTransaction(Transaction::pointer trans);
TransResult hasTransaction(Transaction::pointer trans);
Ledger::pointer switchPreviousLedger(Ledger::pointer oldPrevious, Ledger::pointer newPrevious, int limit);
// high-level functions
AccountState::pointer getAccountState(const NewcoinAddress& acctID);
LedgerStateParms writeBack(LedgerStateParms parms, SerializedLedgerEntry::pointer);
SerializedLedgerEntry::pointer getAccountRoot(LedgerStateParms& parms, const uint160& accountID);
SerializedLedgerEntry::pointer getNickname(LedgerStateParms& parms, const std::string& nickname);
@@ -144,7 +135,15 @@ public:
// index calculation functions
static uint256 getAccountRootIndex(const uint160& account);
static uint256 getAccountRootIndex(const NewcoinAddress& account)
{ return getAccountRootIndex(account.getAccountID()); }
static uint256 getRippleIndex(const uint160& account, const uint160& extendTo, const uint160& currency);
static uint256 getRippleIndex(const uint160& account, const uint160& extendTo)
{ return getRippleIndex(account, extendTo, uint160()); }
static uint256 getRippleIndex(const NewcoinAddress& account, const NewcoinAddress& extendTo,
const uint160& currency)
{ return getRippleIndex(account.getAccountID(), extendTo.getAccountID(), currency); }
Ledger::pointer closeLedger(uint64 timestamp);
bool isCompatible(boost::shared_ptr<Ledger> other);