bool SysTestBase::GetRegID(string& strAddr,CRegID& regID) {
CAccount account;
CKeyID keyid;
if (!GetKeyId(strAddr, keyid)) {
return false;
}
CUserID userId = keyid;
LOCK(cs_main);
CAccountViewCache accView(*pAccountViewTip, true);
if (!accView.GetAccount(userId, account)) {
return false;
}
if((!account.IsRegister())||account.regID.IsEmpty())
{
return false;
}
regID = account.regID;
return true;
}
bool CreatePosTx(const CBlockIndex *pPrevIndex, CBlock *pBlock, set<CKeyID>&setCreateKey, CAccountViewCache &view,
CTransactionDBCache &txCache, CScriptDBViewCache &scriptCache) {
set<CKeyID> setKeyID;
setKeyID.clear();
set<CAccount, CAccountComparator> setAcctInfo;
{
LOCK2(cs_main, pwalletMain->cs_wallet);
if((unsigned int)(chainActive.Tip()->nHeight + 1) != pBlock->GetHeight())
return false;
pwalletMain->GetKeys(setKeyID, true); // first:get keyID from pwalletMain
if (setKeyID.empty()) {
return ERRORMSG("CreatePosTx setKeyID empty");
}
LogPrint("INFO","CreatePosTx block time:%d\n", pBlock->GetTime());
for(const auto &keyid:setKeyID) { //second:get account by keyID
//find CAccount info by keyid
if(setCreateKey.size()) {
bool bfind = false;
for(auto &item: setCreateKey){
if(item == keyid){
bfind = true;
break;
}
}
if (!bfind)
continue;
}
CUserID userId = keyid;
CAccount acctInfo;
if (view.GetAccount(userId, acctInfo)) { // check acctInfo is or not allowed to mining ,
//available
// LogPrint("miner", "account info:regid=%s keyid=%s ncoinday=%lld isMiner=%d\n", acctInfo.regID.ToString(),
// acctInfo.keyID.ToString(), acctInfo.GetAccountPos(pBlock->nHeight), acctInfo.IsMiner(pBlock->nHeight));
if (acctInfo.IsRegister() && acctInfo.GetAccountPos(pBlock->GetHeight()) > 0 && acctInfo.IsMiner(pBlock->GetHeight())) {
setAcctInfo.insert(std::move(acctInfo));
// LogPrint("miner", "miner account info:%s\n", acctInfo.ToString());
}
}
}
}
if (setAcctInfo.empty()) {
setCreateKey.clear();
LogPrint("INFO", "CreatePosTx setSecureAcc empty");
return false;
}
uint64_t maxNonce = SysCfg().GetBlockMaxNonce(); //cacul times
uint256 prevblockhash = pPrevIndex->GetBlockHash();
const uint256 targetHash = CBigNum().SetCompact(pBlock->GetBits()).getuint256(); //target hash difficult
set<CAccount, CAccountComparator>::iterator iterAcct = setAcctInfo.begin();
for (;iterAcct!=setAcctInfo.end();++iterAcct) { //third: 根据不同的账户 ,去计算挖矿
CAccount &item = const_cast<CAccount&>(*iterAcct);
uint64_t posacc = item.GetAccountPos(pBlock->GetHeight());
if (0 == posacc) { //have no pos
LogPrint("ERROR", "CreatePosTx posacc zero\n");
continue;
}
LogPrint("miner", "miner account:%s\n", item.ToString());
// LogPrint("INFO", "target hash:%s\n", targetHash.ToString());
// LogPrint("INFO", "posacc:%d\n", posacc);
uint256 adjusthash = GetAdjustHash(targetHash, posacc, pBlock->GetHeight()-1); //adjust nbits
// LogPrint("INFO", "adjusthash:%s\n", adjusthash.ToString());
//need compute this block proofofwork
struct PosTxInfo postxinfo;
postxinfo.nVersion = pBlock->GetVersion();
postxinfo.hashPrevBlock = prevblockhash;
postxinfo.hashMerkleRoot = item.GetHash();
postxinfo.nValues = item.llValues;
postxinfo.nHeight = pBlock->GetHeight();
postxinfo.nFuel = pBlock->GetFuel();
postxinfo.nFuelRate = pBlock->GetFuelRate();
postxinfo.nTime = pBlock->GetTime(); //max(pPrevIndex->GetMedianTimePast() + 1, GetAdjustedTime());
unsigned int nNonce = 0;
for (; nNonce < maxNonce; ++nNonce) { //循环的 更改随机数，计算curhash看是否满足
postxinfo.nNonce = nNonce;
pBlock->SetNonce(nNonce);
uint256 curhash = postxinfo.GetHash();
if (UintToArith256(curhash) <= UintToArith256(adjusthash)) {
CRegID regid;
if (pAccountViewTip->GetRegId(item.keyID, regid)) {
CRewardTransaction *prtx = (CRewardTransaction *) pBlock->vptx[0].get();
prtx->account = regid; //存矿工的 账户ID
prtx->nHeight = pPrevIndex->nHeight+1;
pBlock->SetHashMerkleRoot(pBlock->BuildMerkleTree());
pBlock->SetHashPos(curhash);
LogPrint("INFO", "find pos tx hash succeed: \n"
" pos hash:%s \n"
"adjust hash:%s \r\n", curhash.GetHex(), adjusthash.GetHex());
vector<unsigned char> vSign;
if (pwalletMain->Sign(item.keyID, pBlock->SignatureHash(), vSign,
item.MinerPKey.IsValid())) {
LogPrint("INFO", "Create new block hash:%s\n", pBlock->GetHash().GetHex());
LogPrint("miner", "Miner account info:%s\n", item.ToString());
LogPrint("miner", "CreatePosTx block hash:%s, postxinfo:%s\n",pBlock->GetHash().GetHex(), postxinfo.ToString().c_str());
pBlock->SetSignature(vSign);
return true;
} else {
LogPrint("ERROR", "sign fail\r\n");
}
} else {
LogPrint("ERROR", "GetKey fail or GetVec6 fail\r\n");
}
}
}
}
return false;
}
