Files
xahaud/src/LedgerAcquire.h
JoelKatz b74e64bd76 Abstract out the peer set and timing code fromt he ledger acquire logic.
There's probably a better way to handle the timer lambda, but this works.
2012-05-12 22:14:16 -07:00

102 lines
2.8 KiB
C++

#ifndef __LEDGERACQUIRE__
#define __LEDGERACQUIRE__
#include <vector>
#include <map>
#include <boost/enable_shared_from_this.hpp>
#include <boost/function.hpp>
#include <boost/asio.hpp>
#include <boost/thread/mutex.hpp>
#include "Ledger.h"
#include "Peer.h"
#include "../obj/src/newcoin.pb.h"
class PeerSet
{
protected:
uint256 mHash;
int mTimerInterval;
bool mComplete, mFailed;
boost::recursive_mutex mLock;
boost::asio::deadline_timer mTimer;
std::list< boost::weak_ptr<Peer> > mPeers;
PeerSet(const uint256& hash, int interval);
public:
const uint256& getHash() const { return mHash; }
bool isComplete() const { return mComplete; }
bool isFailed() const { return mFailed; }
void peerHas(Peer::pointer);
void badPeer(Peer::pointer);
void resetTimer();
protected:
virtual void newPeer(Peer::pointer) = 0;
virtual boost::function<void (boost::system::error_code)> getTimerLamba() = 0;
void setComplete() { mComplete = true; }
void setFailed() { mFailed = true; }
};
class LedgerAcquire : public PeerSet, public boost::enable_shared_from_this<LedgerAcquire>
{ // A ledger we are trying to acquire
public:
typedef boost::shared_ptr<LedgerAcquire> pointer;
protected:
Ledger::pointer mLedger;
bool mHaveBase, mHaveState, mHaveTransactions;
std::vector< boost::function<void (LedgerAcquire::pointer)> > mOnComplete;
void done();
void onTimer() { trigger(Peer::pointer()); }
void sendRequest(boost::shared_ptr<newcoin::TMGetLedger> message);
void sendRequest(boost::shared_ptr<newcoin::TMGetLedger> message, Peer::pointer peer);
void newPeer(Peer::pointer peer) { trigger(peer); }
void trigger(Peer::pointer);
virtual boost::function<void (boost::system::error_code)> getTimerLamba();
static void LATimerEntry(boost::weak_ptr<LedgerAcquire>, const boost::system::error_code&);
public:
LedgerAcquire(const uint256& hash);
bool isBase() const { return mHaveBase; }
bool isAcctStComplete() const { return mHaveState; }
bool isTransComplete() const { return mHaveTransactions; }
Ledger::pointer getLedger() { return mLedger; }
void addOnComplete(boost::function<void (LedgerAcquire::pointer)>);
bool takeBase(const std::string& data, Peer::pointer);
bool takeTxNode(const std::list<SHAMapNode>& IDs, const std::list<std::vector<unsigned char> >& data,
Peer::pointer);
bool takeAsNode(const std::list<SHAMapNode>& IDs, const std::list<std::vector<unsigned char> >& data,
Peer::pointer);
};
class LedgerAcquireMaster
{
protected:
boost::mutex mLock;
std::map<uint256, LedgerAcquire::pointer> mLedgers;
public:
LedgerAcquireMaster() { ; }
LedgerAcquire::pointer findCreate(const uint256& hash);
LedgerAcquire::pointer find(const uint256& hash);
bool hasLedger(const uint256& ledgerHash);
bool dropLedger(const uint256& ledgerHash);
bool gotLedgerData(newcoin::TMLedgerData& packet, Peer::pointer);
};
#endif
// vim:ts=4