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Refactored rx-slow-hash.c

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- Straight-forward call interface: `void rx_slow_hash(const char *seedhash, const void *data, size_t length, char *result_hash)`
- Consensus chain seed hash is now updated by calling `rx_set_main_seedhash` whenever a block is added/removed or a reorg happens
- `rx_slow_hash` will compute correct hash no matter if `rx_set_main_seedhash` was called or not (the only difference is performance)
- New environment variable `MONERO_RANDOMX_FULL_MEM` to force use the full dataset for PoW verification (faster block verification)
- When dataset is used for PoW verification, dataset updates don't stall other threads (verification is done in light mode then)
- When mining is running, PoW checks now also use dataset for faster verification
This commit is contained in:
SChernykh
2022-12-10 18:30:59 +01:00
parent 8cb10345d6
commit f698f2b708
11 changed files with 398 additions and 253 deletions
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src/cryptonote_core/cryptonote_tx_utils.cpp
+6 -20
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@@ -669,10 +669,10 @@ namespace cryptonote
return true;
}
//---------------------------------------------------------------
void get_altblock_longhash(const block& b, crypto::hash& res, const uint64_t main_height, const uint64_t height, const uint64_t seed_height, const crypto::hash& seed_hash)
void get_altblock_longhash(const block& b, crypto::hash& res, const crypto::hash& seed_hash)
{
blobdata bd = get_block_hashing_blob(b);
rx_slow_hash(main_height, seed_height, seed_hash.data, bd.data(), bd.size(), res.data, 0, 1);
rx_slow_hash(seed_hash.data, bd.data(), bd.size(), res.data);
}
bool get_block_longhash(const Blockchain *pbc, const blobdata& bd, crypto::hash& res, const uint64_t height, const int major_version, const crypto::hash *seed_hash, const int miners)
@@ -686,20 +686,16 @@ namespace cryptonote
}
if (major_version >= RX_BLOCK_VERSION)
{
uint64_t seed_height, main_height;
crypto::hash hash;
if (pbc != NULL)
{
seed_height = rx_seedheight(height);
const uint64_t seed_height = rx_seedheight(height);
hash = seed_hash ? *seed_hash : pbc->get_pending_block_id_by_height(seed_height);
main_height = pbc->get_current_blockchain_height();
} else
{
memset(&hash, 0, sizeof(hash)); // only happens when generating genesis block
seed_height = 0;
main_height = 0;
}
rx_slow_hash(main_height, seed_height, hash.data, bd.data(), bd.size(), res.data, seed_hash ? 0 : miners, !!seed_hash);
rx_slow_hash(hash.data, bd.data(), bd.size(), res.data);
} else {
const int pow_variant = major_version >= 7 ? major_version - 6 : 0;
crypto::cn_slow_hash(bd.data(), bd.size(), res, pow_variant, height);
@@ -713,20 +709,10 @@ namespace cryptonote
return get_block_longhash(pbc, bd, res, height, b.major_version, seed_hash, miners);
}
bool get_block_longhash(const Blockchain *pbc, const block& b, crypto::hash& res, const uint64_t height, const int miners)
{
return get_block_longhash(pbc, b, res, height, NULL, miners);
}
crypto::hash get_block_longhash(const Blockchain *pbc, const block& b, const uint64_t height, const int miners)
crypto::hash get_block_longhash(const Blockchain *pbc, const block& b, const uint64_t height, const crypto::hash *seed_hash, const int miners)
{
crypto::hash p = crypto::null_hash;
get_block_longhash(pbc, b, p, height, miners);
get_block_longhash(pbc, b, p, height, seed_hash, miners);
return p;
}
void get_block_longhash_reorg(const uint64_t split_height)
{
rx_reorg(split_height);
}
}