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StratumServer: submit Monero block as soon as possible

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1-3 ms saved when a block is found
This commit is contained in:
SChernykh 2021-10-13 18:57:21 +02:00
parent 61ac90f1d5
commit f3024d3556
4 changed files with 56 additions and 26 deletions
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19
src/block_template.cpp
View file

@ -838,6 +838,25 @@ void BlockTemplate::calc_merkle_tree_main_branch()
}
}
bool BlockTemplate::get_difficulties(const uint32_t template_id, difficulty_type& mainchain_difficulty, difficulty_type& sidechain_difficulty) const
{
ReadLock lock(m_lock);
if (template_id == m_templateId) {
mainchain_difficulty = m_difficulty;
sidechain_difficulty = m_poolBlockTemplate->m_difficulty;
return true;
}
const BlockTemplate* old = m_oldTemplates[template_id % array_size(m_oldTemplates)];
if (old && (template_id == old->m_templateId)) {
return old->get_difficulties(template_id, mainchain_difficulty, sidechain_difficulty);
}
return false;
}
uint32_t BlockTemplate::get_hashing_blob(const uint32_t template_id, uint32_t extra_nonce, uint8_t (&blob)[128], uint64_t& height, difficulty_type& difficulty, difficulty_type& sidechain_difficulty, hash& seed_hash, size_t& nonce_offset) const
{
ReadLock lock(m_lock);

1
src/block_template.h
View file

@ -40,6 +40,7 @@ public:
void update(const MinerData& data, const Mempool& mempool, Wallet* miner_wallet);
bool get_difficulties(const uint32_t template_id, difficulty_type& mainchain_difficulty, difficulty_type& sidechain_difficulty) const;
uint32_t get_hashing_blob(const uint32_t template_id, uint32_t extra_nonce, uint8_t (&blob)[128], uint64_t& height, difficulty_type& difficulty, difficulty_type& sidechain_difficulty, hash& seed_hash, size_t& nonce_offset) const;
uint32_t get_hashing_blob(uint32_t extra_nonce, uint8_t (&blob)[128], uint64_t& height, difficulty_type& difficulty, difficulty_type& sidechain_difficulty, hash& seed_hash, size_t& nonce_offset, uint32_t& template_id) const;

61
src/stratum_server.cpp
View file

@ -319,6 +319,26 @@ bool StratumServer::on_submit(StratumClient* client, uint32_t id, const char* jo
}
if (found) {
BlockTemplate& block = m_pool->block_template();
difficulty_type mainchain_diff, sidechain_diff;
if (!block.get_difficulties(template_id, mainchain_diff, sidechain_diff)) {
LOGWARN(4, "client " << static_cast<char*>(client->m_addrString) << " got a stale share");
return send(client,
[id](void* buf)
{
log::Stream s(reinterpret_cast<char*>(buf));
s << "{\"id\":" << id << ",\"jsonrpc\":\"2.0\",\"error\":{\"message\":\"Stale share\"}}\n";
return s.m_pos;
});
}
if (mainchain_diff.check_pow(resultHash)) {
LOGINFO(0, log::Green() << "client " << static_cast<char*>(client->m_addrString) << " found a mainchain block, submitting it");
m_pool->submit_block_async(template_id, nonce, extra_nonce);
block.update_tx_keys();
}
SubmittedShare* share;
{
@ -345,6 +365,7 @@ bool StratumServer::on_submit(StratumClient* client, uint32_t id, const char* jo
share->m_extraNonce = extra_nonce;
share->m_target = target;
share->m_resultHash = resultHash;
share->m_sidechainDifficulty = sidechain_diff;
const int err = uv_queue_work(&m_loop, &share->m_req, on_share_found, on_after_share_found);
if (err) {
@ -571,7 +592,6 @@ void StratumServer::on_share_found(uv_work_t* req)
StratumClient* client = share->m_client;
StratumServer* server = share->m_server;
p2pool* pool = server->m_pool;
BlockTemplate& block = pool->block_template();
uint64_t target = share->m_target;
if (target >= TARGET_4_BYTES_LIMIT) {
@ -582,24 +602,21 @@ void StratumServer::on_share_found(uv_work_t* req)
LOGWARN(0, "p2pool is shutting down, but a share was found. Trying to process it anyway!");
}
uint8_t blob[128];
uint64_t height;
difficulty_type difficulty;
difficulty_type sidechain_difficulty;
hash seed_hash;
size_t nonce_offset;
if (share->m_sidechainDifficulty.check_pow(share->m_resultHash)) {
uint8_t blob[128];
uint64_t height;
difficulty_type difficulty;
difficulty_type sidechain_difficulty;
hash seed_hash;
size_t nonce_offset;
const uint32_t blob_size = block.get_hashing_blob(share->m_templateId, share->m_extraNonce, blob, height, difficulty, sidechain_difficulty, seed_hash, nonce_offset);
if (!blob_size) {
LOGWARN(4, "client " << static_cast<char*>(client->m_addrString) << " got a stale share");
share->m_result = SubmittedShare::Result::STALE;
return;
}
const uint32_t blob_size = pool->block_template().get_hashing_blob(share->m_templateId, share->m_extraNonce, blob, height, difficulty, sidechain_difficulty, seed_hash, nonce_offset);
if (!blob_size) {
LOGWARN(4, "client " << static_cast<char*>(client->m_addrString) << " got a stale share");
share->m_result = SubmittedShare::Result::STALE;
return;
}
const bool mainchain_solution = difficulty.check_pow(share->m_resultHash);
const bool sidechain_solution = sidechain_difficulty.check_pow(share->m_resultHash);
if (mainchain_solution || sidechain_solution) {
for (uint32_t i = 0, nonce = share->m_nonce; i < sizeof(share->m_nonce); ++i) {
blob[nonce_offset + i] = nonce & 255;
nonce >>= 8;
@ -630,15 +647,7 @@ void StratumServer::on_share_found(uv_work_t* req)
++server->m_totalFoundShares;
LOGINFO(0, log::Green() << "SHARE FOUND: mainchain height " << height << ", diff " << sidechain_difficulty << ", effort " << effort << '%');
if (mainchain_solution) {
pool->submit_block_async(share->m_templateId, share->m_nonce, share->m_extraNonce);
block.update_tx_keys();
}
if (sidechain_solution) {
pool->submit_sidechain_block(share->m_templateId, share->m_nonce, share->m_extraNonce);
}
pool->submit_sidechain_block(share->m_templateId, share->m_nonce, share->m_extraNonce);
}
// Send the response to miner

1
src/stratum_server.h
View file

@ -121,6 +121,7 @@ private:
uint32_t m_extraNonce;
uint64_t m_target;
hash m_resultHash;
difficulty_type m_sidechainDifficulty;
enum class Result {
STALE,