Files
rippled/LedgerHistory.cpp
2011-12-16 20:15:51 -08:00

128 lines
3.3 KiB
C++

#include <string>
#include "boost/bind.hpp"
#include "LedgerHistory.h"
#include "Config.h"
#include "Application.h"
void LedgerHistory::addLedger(Ledger::pointer ledger)
{
uint256 h(ledger->getHash());
boost::recursive_mutex::scoped_lock sl(mLock);
if(!mLedgersByHash.count(h)) mLedgersByHash.insert(std::make_pair(h, ledger));
}
void LedgerHistory::addAcceptedLedger(Ledger::pointer ledger)
{
assert(ledger && ledger->isAccepted());
uint256 h(ledger->getHash());
boost::recursive_mutex::scoped_lock sl(mLock);
mLedgersByIndex.insert(std::make_pair(ledger->getLedgerSeq(), ledger));
mLedgersByHash.insert(std::make_pair(h, ledger));
theApp->getIOService().post(boost::bind(&Ledger::saveAcceptedLedger, ledger));
}
Ledger::pointer LedgerHistory::getLedgerBySeq(uint32 index)
{
boost::recursive_mutex::scoped_lock sl(mLock);
if(mLedgersByIndex.count(index)) return mLedgersByIndex[index];
sl.unlock();
Ledger::pointer ret(Ledger::loadByIndex(index));
if(!ret) return ret;
assert(ret->getLedgerSeq()==index);
uint256 h=ret->getHash();
sl.lock();
mLedgersByIndex.insert(std::make_pair(index, ret));
mLedgersByHash.insert(std::make_pair(h, ret));
return ret;
}
Ledger::pointer LedgerHistory::getLedgerByHash(const uint256& hash)
{
boost::recursive_mutex::scoped_lock sl(mLock);
if(mLedgersByHash.count(hash)!=0) return mLedgersByHash[hash];
sl.unlock();
Ledger::pointer ret=Ledger::loadByHash(hash);
if(!ret) return ret;
assert(ret->getHash()==hash);
sl.lock();
mLedgersByHash.insert(std::make_pair(hash, ret));
if(ret->isAccepted()) mLedgersByIndex.insert(std::make_pair(ret->getLedgerSeq(), ret));
return ret;
}
Ledger::pointer LedgerHistory::canonicalizeLedger(Ledger::pointer ledger, bool save)
{
uint256 h(ledger->getHash());
boost::recursive_mutex::scoped_lock sl(mLock);
if(mLedgersByHash.count(h)!=0) return mLedgersByHash[h];
if(!save) return ledger;
assert(ledger->getHash()==h);
mLedgersByHash.insert(std::make_pair(h, ledger));
if(ledger->isAccepted()) mLedgersByIndex.insert(std::make_pair(ledger->getLedgerSeq(), ledger));
return ledger;
}
#if 0
bool LedgerHistory::loadLedger(const uint256& hash)
{
Ledger::pointer ledger=Ledger::pointer(new Ledger());
if(ledger->load(hash))
{
mAllLedgers[hash]=ledger;
return(true);
}
return(false);
}
bool LedgerHistory::loadAcceptedLedger(uint32 index)
{
// TODO: LedgerHistory::loadAcceptedLedger(uint32 index)
/*
Ledger::pointer ledger=theApp->getSerializer()->loadAcceptedLedger(index);
if(ledger)
{
mAcceptedLedgers[index]=ledger;
return(true);
}*/
return(false);
}
void LedgerHistory::addAcceptedLedger(Ledger::pointer ledger)
{
mAcceptedLedgers[ledger->getIndex()]=ledger;
}
// this will see if the ledger is in memory
// if not it will check disk and load it
// if not it will return NULL
Ledger::pointer LedgerHistory::getAcceptedLedger(uint32 index)
{
if(mAcceptedLedgers.count(index))
return(mAcceptedLedgers[index]);
if(loadAcceptedLedger(index)) return(mAcceptedLedgers[index]);
return(Ledger::pointer());
}
void LedgerHistory::addLedger(Ledger::pointer ledger)
{
mAcceptedLedgers[ledger->getIndex()]=ledger;
ledger->save();
}
Ledger::pointer LedgerHistory::getLedger(const uint256& hash)
{
if(mAllLedgers.count(hash))
return(mAllLedgers[hash]);
if(loadLedger(hash)) return(mAllLedgers[hash]);
return(Ledger::pointer());
}
#endif