Value getworkex(const Array& params, bool fHelp)
{
if (fHelp || params.size() > 2)
throw runtime_error(
"getworkex [data, coinbase]\n"
"If [data, coinbase] is not specified, returns extended work data.\n"
);
if (vNodes.empty())
throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "cyphers is not connected!");
if (IsInitialBlockDownload())
throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD, "cyphers is downloading blocks...");
typedef map<uint256, pair<CBlock*, CScript> > mapNewBlock_t;
static mapNewBlock_t mapNewBlock; // FIXME: thread safety
static vector<CBlockTemplate*> vNewBlockTemplate;
static CReserveKey reservekey(pwalletMain);
if (params.size() == 0)
{
// Update block
static unsigned int nTransactionsUpdatedLast;
static CBlockIndex* pindexPrev;
static int64 nStart;
static CBlockTemplate* pblocktemplate;
if (pindexPrev != pindexBest ||
(nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60))
{
if (pindexPrev != pindexBest)
{
// Deallocate old blocks since they're obsolete now
mapNewBlock.clear();
BOOST_FOREACH(CBlockTemplate* pblocktemplate, vNewBlockTemplate)
delete pblocktemplate;
vNewBlockTemplate.clear();
}
// Clear pindexPrev so future getworks make a new block, despite any failures from here on
pindexPrev = NULL;
// Store the pindexBest used before CreateNewBlock, to avoid races
nTransactionsUpdatedLast = nTransactionsUpdated;
CBlockIndex* pindexPrevNew = pindexBest;
nStart = GetTime();
// Create new block
pblocktemplate = CreateNewBlockWithKey(*pMiningKey);
if (!pblocktemplate)
throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory");
vNewBlockTemplate.push_back(pblocktemplate);
// Need to update only after we know CreateNewBlock succeeded
pindexPrev = pindexPrevNew;
}
CBlock* pblock = &pblocktemplate->block; // pointer for convenience
// Update nTime
pblock->UpdateTime(pindexPrev);
pblock->nNonce = 0;
// Update nExtraNonce
static unsigned int nExtraNonce = 0;
IncrementExtraNonce(pblock, pindexPrev, nExtraNonce);
// Save
mapNewBlock[pblock->hashMerkleRoot] = make_pair(pblock, pblock->vtx[0].vin[0].scriptSig);
// Pre-build hash buffers
char pmidstate[32];
char pdata[128];
char phash1[64];
FormatHashBuffers(pblock, pmidstate, pdata, phash1);
uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
CTransaction coinbaseTx = pblock->vtx[0];
std::vector<uint256> merkle = pblock->GetMerkleBranch(0);
Object result;
result.push_back(Pair("data", HexStr(BEGIN(pdata), END(pdata))));
result.push_back(Pair("target", HexStr(BEGIN(hashTarget), END(hashTarget))));
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
ssTx << coinbaseTx;
result.push_back(Pair("coinbase", HexStr(ssTx.begin(), ssTx.end())));
Array merkle_arr;
BOOST_FOREACH(uint256 merkleh, merkle) {
printf("%s\n", merkleh.ToString().c_str());
merkle_arr.push_back(HexStr(BEGIN(merkleh), END(merkleh)));
}
result.push_back(Pair("merkle", merkle_arr));
return result;
}
