// NovaCoin: get current stake weight
bool CWallet::GetStakeWeight(const CKeyStore& keystore, uint64& nMinWeight, uint64& nMaxWeight, uint64& nWeight)
{
- if (mapMeta.size() == 0 || !fCoinsDataActual)
+ // Choose coins to use
+ int64 nBalance = GetBalance();
+ int64 nReserveBalance = 0;
+
+ if (mapArgs.count("-reservebalance") && !ParseMoney(mapArgs["-reservebalance"], nReserveBalance))
+ return error("CreateCoinStake : invalid reserve balance amount");
+
+ if (nBalance <= nReserveBalance)
return false;
+ CTxDB txdb("r");
+ {
+ LOCK2(cs_main, cs_wallet);
+ // Cache outputs unless best block or wallet transaction set changed
+ if (!fCoinsDataActual)
+ {
+ mapMeta.clear();
+ int64 nValueIn = 0;
+ CoinsSet setCoins;
+ if (!SelectCoinsSimple(nBalance - nReserveBalance, MIN_TX_FEE, MAX_MONEY, GetAdjustedTime(), nCoinbaseMaturity * 10, setCoins, nValueIn))
+ return false;
+
+ if (setCoins.empty())
+ return false;
+
+ {
+ CTxIndex txindex;
+ CBlock block;
+ for(CoinsSet::iterator pcoin = setCoins.begin(); pcoin != setCoins.end(); pcoin++)
+ {
+ // Load transaction index item
+ if (!txdb.ReadTxIndex(pcoin->first->GetHash(), txindex))
+ continue;
+
+ // Read block header
+ if (!block.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos, false))
+ continue;
+
+ uint64 nStakeModifier = 0;
+ if (!GetKernelStakeModifier(block.GetHash(), nStakeModifier))
+ continue;
+
+ // Add meta record
+ // txid => ((txindex, (tx, vout.n)), (block, modifier))
+ mapMeta[pcoin->first->GetHash()] = make_pair(make_pair(txindex, *pcoin), make_pair(block, nStakeModifier));
+
+ if (fDebug)
+ printf("Load coin: %s\n", pcoin->first->GetHash().GetHex().c_str());
+ }
+ }
+
+ if (fDebug)
+ printf("Get stake weight: %zu meta items loaded for %zu coins\n", mapMeta.size(), setCoins.size());
+
+ fCoinsDataActual = true;
+ }
+ }
+
+
// txid => ((txindex, (tx, vout.n)), (block, modifier))
for(MetaMap::const_iterator meta_item = mapMeta.begin(); meta_item != mapMeta.end(); meta_item++)
{