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Prepare getblocktemplate for multiple algorithms

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Capri 2026-09-12 21:55:34 +00:00
commit 525f5e8aad
Signed by: VextaProject
SSH key fingerprint: SHA256:739BZv8LvIDY2tR7lXLy/IQ6MaGTQtYcG9GNvCjmpVM
1 changed files with 17 additions and 1 deletions
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18
src/rpc/mining.cpp
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@ -631,6 +631,19 @@ static RPCHelpMan getblocktemplate()
UniValue lpval = NullUniValue;
std::set<std::string> setClientRules;
int64_t nMaxVersionPreVB = -1;
int algo = ALGO_SHA256D;
if (!request.params[1].isNull()) {
const std::string strAlgo = request.params[1].get_str();
if (strAlgo == "sha256d") {
algo = ALGO_SHA256D;
} else if (strAlgo == "randomx") {
throw JSONRPCError(RPC_INVALID_PARAMETER, "RandomX is not active yet");
} else {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Unknown proof-of-work algorithm");
}
}
CChainState& active_chainstate = chainman.ActiveChainstate();
CChain& active_chain = active_chainstate.m_chain;
if (!request.params[0].isNull())
@ -769,8 +782,10 @@ static RPCHelpMan getblocktemplate()
// Update block
static CBlockIndex* pindexPrev;
static int64_t nStart;
static int cachedAlgo = ALGO_UNKNOWN;
static std::unique_ptr<CBlockTemplate> pblocktemplate;
if (pindexPrev != active_chain.Tip() ||
cachedAlgo != algo ||
(mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 5))
{
// Clear pindexPrev so future calls make a new block, despite any failures from here on
@ -782,12 +797,13 @@ static RPCHelpMan getblocktemplate()
nStart = GetTime();
// Create new block
CScript scriptDummy = CScript() << OP_TRUE;
pblocktemplate = BlockAssembler(active_chainstate, mempool, Params()).CreateNewBlock(scriptDummy);
pblocktemplate = BlockAssembler(active_chainstate, mempool, Params()).CreateNewBlock(scriptDummy, algo);
if (!pblocktemplate)
throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory");
// Need to update only after we know CreateNewBlock succeeded
pindexPrev = pindexPrevNew;
cachedAlgo = algo;
}
CHECK_NONFATAL(pindexPrev);
CBlock* pblock = &pblocktemplate->block; // pointer for convenience