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88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
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#include <string>
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#include "boost/bind.hpp"
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#include "LedgerHistory.h"
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#include "Config.h"
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#include "Application.h"
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#ifndef CACHED_LEDGER_NUM
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#define CACHED_LEDGER_NUM 512
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#endif
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#ifndef CACHED_LEDGER_AGE
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#define CACHED_LEDGER_AGE 60
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#endif
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LedgerHistory::LedgerHistory() : mLedgersByHash(CACHED_LEDGER_NUM, CACHED_LEDGER_AGE)
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{
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;
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}
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void LedgerHistory::addLedger(Ledger::pointer ledger)
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{
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mLedgersByHash.canonicalize(ledger->getHash(), ledger);
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}
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void LedgerHistory::addAcceptedLedger(Ledger::pointer ledger)
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{
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assert(ledger && ledger->isAccepted());
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uint256 h(ledger->getHash());
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boost::recursive_mutex::scoped_lock sl(mLedgersByHash.peekMutex());
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mLedgersByHash.canonicalize(h, ledger);
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mLedgersByIndex.insert(std::make_pair(ledger->getLedgerSeq(), ledger));
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theApp->getIOService().post(boost::bind(&Ledger::saveAcceptedLedger, ledger));
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}
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Ledger::pointer LedgerHistory::getLedgerBySeq(uint32 index)
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{
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boost::recursive_mutex::scoped_lock sl(mLedgersByHash.peekMutex());
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std::map<uint32, Ledger::pointer>::iterator it(mLedgersByIndex.find(index));
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if (it != mLedgersByIndex.end()) return it->second;
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sl.unlock();
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Ledger::pointer ret(Ledger::loadByIndex(index));
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if (!ret) return ret;
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assert(ret->getLedgerSeq() == index);
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sl.lock();
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mLedgersByHash.canonicalize(ret->getHash(), ret);
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mLedgersByIndex.insert(std::make_pair(index, ret));
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return ret;
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}
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Ledger::pointer LedgerHistory::getLedgerByHash(const uint256& hash)
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{
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Ledger::pointer ret = mLedgersByHash.fetch(hash);
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if (ret) return ret;
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ret = Ledger::loadByHash(hash);
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if (!ret) return ret;
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assert(ret->getHash() == hash);
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boost::recursive_mutex::scoped_lock sl(mLedgersByHash.peekMutex());
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mLedgersByHash.canonicalize(hash, ret);
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if (ret->isAccepted()) mLedgersByIndex[ret->getLedgerSeq()] = ret;
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return ret;
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}
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Ledger::pointer LedgerHistory::canonicalizeLedger(Ledger::pointer ledger, bool save)
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{
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uint256 h(ledger->getHash());
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if (!save)
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{ // return input ledger if not in map, otherwise, return corresponding map ledger
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Ledger::pointer ret = mLedgersByHash.fetch(h);
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if (ret) return ret;
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return ledger;
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}
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// save input ledger in map if not in map, otherwise return corresponding map ledger
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boost::recursive_mutex::scoped_lock sl(mLedgersByHash.peekMutex());
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mLedgersByHash.canonicalize(h, ledger);
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if (ledger->isAccepted()) mLedgersByIndex[ledger->getLedgerSeq()]=ledger;
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return ledger;
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}
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// vim:ts=4
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