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rpc: add next to getmininginfo

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Obtain difficulty and target for the next block without having to call
getblocktemplate.
This commit is contained in:
Sjors Provoost
2024-12-31 10:44:53 +01:00
parent 2d18a078a2
commit cf0a62878b
4 changed files with 50 additions and 1 deletions
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20
src/rpc/mining.cpp
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@@ -428,6 +428,13 @@ static RPCHelpMan getmininginfo()
{RPCResult::Type::NUM, "pooledtx", "The size of the mempool"},
{RPCResult::Type::STR, "chain", "current network name (" LIST_CHAIN_NAMES ")"},
{RPCResult::Type::STR_HEX, "signet_challenge", /*optional=*/true, "The block challenge (aka. block script), in hexadecimal (only present if the current network is a signet)"},
{RPCResult::Type::OBJ, "next", "The next block",
{
{RPCResult::Type::NUM, "height", "The next height"},
{RPCResult::Type::STR_HEX, "bits", "The next target nBits"},
{RPCResult::Type::NUM, "difficulty", "The next difficulty"},
{RPCResult::Type::STR_HEX, "target", "The next target"}
}},
(IsDeprecatedRPCEnabled("warnings") ?
RPCResult{RPCResult::Type::STR, "warnings", "any network and blockchain warnings (DEPRECATED)"} :
RPCResult{RPCResult::Type::ARR, "warnings", "any network and blockchain warnings (run with `-deprecatedrpc=warnings` to return the latest warning as a single string)",
@@ -460,9 +467,20 @@ static RPCHelpMan getmininginfo()
obj.pushKV("networkhashps", getnetworkhashps().HandleRequest(request));
obj.pushKV("pooledtx", (uint64_t)mempool.size());
obj.pushKV("chain", chainman.GetParams().GetChainTypeString());
UniValue next(UniValue::VOBJ);
CBlockIndex next_index;
NextEmptyBlockIndex(tip, chainman.GetConsensus(), next_index);
next.pushKV("height", next_index.nHeight);
next.pushKV("bits", strprintf("%08x", next_index.nBits));
next.pushKV("difficulty", GetDifficulty(next_index));
next.pushKV("target", GetTarget(next_index, chainman.GetConsensus().powLimit).GetHex());
obj.pushKV("next", next);
if (chainman.GetParams().GetChainType() == ChainType::SIGNET) {
const std::vector<uint8_t>& signet_challenge =
chainman.GetParams().GetConsensus().signet_challenge;
chainman.GetConsensus().signet_challenge;
obj.pushKV("signet_challenge", HexStr(signet_challenge));
}
obj.pushKV("warnings", node::GetWarningsForRpc(*CHECK_NONFATAL(node.warnings), IsDeprecatedRPCEnabled("warnings")));