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75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
#ifndef TRANSACTIONQUEUE__H
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#define TRANSACTIONQUEUE__H
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// Allow transactions to be signature checked out of sequence but retired in sequence
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#include <boost/function.hpp>
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#include <boost/shared_ptr.hpp>
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#include <boost/thread/mutex.hpp>
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#include <boost/bimap.hpp>
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#include <boost/bimap/unordered_set_of.hpp>
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#include <boost/bimap/list_of.hpp>
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#include "Transaction.h"
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class TXQeueue;
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class TXQEntry
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{
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friend class TXQueue;
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public:
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typedef boost::shared_ptr<TXQEntry> pointer;
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typedef const boost::shared_ptr<TXQEntry>& ref;
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typedef FUNCTION_TYPE<void (Transaction::pointer, TER)> stCallback; // must complete immediately
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protected:
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Transaction::pointer mTxn;
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bool mSigChecked;
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std::list<stCallback> mCallbacks;
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void addCallbacks(const TXQEntry& otherEntry);
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public:
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TXQEntry(Transaction::ref tx, bool sigChecked) : mTxn(tx), mSigChecked(sigChecked) { ; }
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TXQEntry() : mSigChecked(false) { ; }
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Transaction::ref getTransaction() const { return mTxn; }
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bool getSigChecked() const { return mSigChecked; }
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const uint256& getID() const { return mTxn->getID(); }
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void doCallbacks(TER);
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};
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class TXQueue
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{
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protected:
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typedef boost::bimaps::unordered_set_of<uint256> leftType;
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typedef boost::bimaps::list_of<TXQEntry::pointer> rightType;
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typedef boost::bimap<leftType, rightType> mapType;
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typedef mapType::value_type valueType;
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mapType mTxMap;
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bool mRunning;
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boost::mutex mLock;
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public:
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TXQueue() : mRunning(false) { ; }
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// Return: true = must dispatch signature checker thread
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bool addEntryForSigCheck(TXQEntry::ref);
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// Call only if signature is okay. Returns true if new account, must dispatch
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bool addEntryForExecution(TXQEntry::ref);
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// Call if signature is bad (returns entry so you can run its callbacks)
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TXQEntry::pointer removeEntry(const uint256& txID);
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// Transaction execution interface
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void getJob(TXQEntry::pointer&);
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bool stopProcessing(TXQEntry::ref finishedJob);
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};
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#endif
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