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wallet: Add BIP125 comment for MAXINT-1/-2 behavior

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This commit is contained in:
Wladimir J. van der Laan 2016-08-26 12:13:48 +02:00
parent 152f45ba58
commit 05fa823bf6
1 changed files with 6 additions and 0 deletions
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6
src/wallet/wallet.cpp
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@ -2358,6 +2358,12 @@ bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wt
//
// Note how the sequence number is set to non-maxint so that
// the nLockTime set above actually works.
//
// BIP125 defines opt-in RBF as any nSequence < maxint-1, so
// we use the highest possible value in that range (maxint-2)
// to avoid conflicting with other possible uses of nSequence,
// and in the spirit of "smallest posible change from prior
// behavior."
BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
txNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second,CScript(),
std::numeric_limits<unsigned int>::max() - (fOptIntoFullRbf ? 2 : 1)));