Method CommitTransaction

src/wallet.cpp:3148–3194

* Call after CreateTransaction unless you want to abort */

 * Call after CreateTransaction unless you want to abort
 */
bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey, std::string strCommand)
{
    {
        LOCK2(cs_main, cs_wallet);
#       if defined(DEBUG_DUMP_STAKING_INFO)&&defined(DEBUG_DUMP_CommitTransaction)
        DEBUG_DUMP_CommitTransaction();
#       endif
        {
            // This is only to keep the database open to defeat the auto-flush for the
            // duration of this scope.  This is the only place where this optimization
            // maybe makes sense; please don't do it anywhere else.
            CWalletDB* pwalletdb = fFileBacked ? new CWalletDB(strWalletFile, "r") : NULL;

            // Take key pair from key pool so it won't be used again
            reservekey.KeepKey();

            // Add tx to wallet, because if it has change it's also ours,
            // otherwise just for transaction history.
            AddToWallet(wtxNew);

            // Notify that old coins are spent
            set<uint256> updated_hahes;
            for (const CTxIn& txin : wtxNew.vin) {
                // notify only once
                if (updated_hahes.find(txin.prevout.hash) != updated_hahes.end()) continue;

                CWalletTx& coin = mapWallet[txin.prevout.hash];
                coin.BindWallet(this);
                NotifyTransactionChanged(this, txin.prevout.hash, CT_UPDATED);
                updated_hahes.insert(txin.prevout.hash);
            }
            if (fFileBacked)
                delete pwalletdb;
        }

        if (fBroadcastTransactions) {
            // Broadcast
            if (!wtxNew.AcceptToMemoryPool(false)) {
                // This must not fail. The transaction has already been signed and recorded.
                LogPrintf("CommitTransaction() : Error: Transaction not valid %s\n", strCommand.c_str());
                return false;
            }
            wtxNew.RelayWalletTransaction(strCommand);
        }
    }
    return true;
}

bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool overrideEstimatedFeeRate, int& nChangePosInOut, std::string& strFailReason,
                              bool lockUnspents, const std::set<int>& setSubtractFeeFromOutputs, CCoinControl* coinControl)