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db: speedup block addition

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by avoiding repeated (de)serialization
This commit is contained in:
moneromooo-monero 2018-11-11 13:39:00 +00:00
parent 5fb4a9719c
commit e69477bf25
No known key found for this signature in database
GPG key ID: 686F07454D6CEFC3
4 changed files with 83 additions and 37 deletions
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62
src/cryptonote_basic/cryptonote_format_utils.cpp
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@ -878,6 +878,11 @@ namespace cryptonote
return true;
}
//---------------------------------------------------------------
void get_blob_hash(const epee::span<const char>& blob, crypto::hash& res)
{
cn_fast_hash(blob.data(), blob.size(), res);
}
//---------------------------------------------------------------
void get_blob_hash(const blobdata& blob, crypto::hash& res)
{
cn_fast_hash(blob.data(), blob.size(), res);
@ -946,6 +951,13 @@ namespace cryptonote
return h;
}
//---------------------------------------------------------------
crypto::hash get_blob_hash(const epee::span<const char>& blob)
{
crypto::hash h = null_hash;
get_blob_hash(blob, h);
return h;
}
//---------------------------------------------------------------
crypto::hash get_transaction_hash(const transaction& t)
{
crypto::hash h = null_hash;
@ -958,26 +970,35 @@ namespace cryptonote
return get_transaction_hash(t, res, NULL);
}
//---------------------------------------------------------------
bool calculate_transaction_prunable_hash(const transaction& t, crypto::hash& res)
bool calculate_transaction_prunable_hash(const transaction& t, const cryptonote::blobdata *blob, crypto::hash& res)
{
if (t.version == 1)
return false;
transaction &tt = const_cast<transaction&>(t);
std::stringstream ss;
binary_archive<true> ba(ss);
const size_t inputs = t.vin.size();
const size_t outputs = t.vout.size();
const size_t mixin = t.vin.empty() ? 0 : t.vin[0].type() == typeid(txin_to_key) ? boost::get<txin_to_key>(t.vin[0]).key_offsets.size() - 1 : 0;
bool r = tt.rct_signatures.p.serialize_rctsig_prunable(ba, t.rct_signatures.type, inputs, outputs, mixin);
CHECK_AND_ASSERT_MES(r, false, "Failed to serialize rct signatures prunable");
cryptonote::get_blob_hash(ss.str(), res);
const unsigned int unprunable_size = t.unprunable_size;
if (blob && unprunable_size)
{
CHECK_AND_ASSERT_MES(unprunable_size <= blob->size(), false, "Inconsistent transaction unprunable and blob sizes");
cryptonote::get_blob_hash(epee::span<const char>(blob->data() + unprunable_size, blob->size() - unprunable_size), res);
}
else
{
transaction &tt = const_cast<transaction&>(t);
std::stringstream ss;
binary_archive<true> ba(ss);
const size_t inputs = t.vin.size();
const size_t outputs = t.vout.size();
const size_t mixin = t.vin.empty() ? 0 : t.vin[0].type() == typeid(txin_to_key) ? boost::get<txin_to_key>(t.vin[0]).key_offsets.size() - 1 : 0;
bool r = tt.rct_signatures.p.serialize_rctsig_prunable(ba, t.rct_signatures.type, inputs, outputs, mixin);
CHECK_AND_ASSERT_MES(r, false, "Failed to serialize rct signatures prunable");
cryptonote::get_blob_hash(ss.str(), res);
}
return true;
}
//---------------------------------------------------------------
crypto::hash get_transaction_prunable_hash(const transaction& t)
crypto::hash get_transaction_prunable_hash(const transaction& t, const cryptonote::blobdata *blobdata)
{
crypto::hash res;
CHECK_AND_ASSERT_THROW_MES(calculate_transaction_prunable_hash(t, res), "Failed to calculate tx prunable hash");
CHECK_AND_ASSERT_THROW_MES(calculate_transaction_prunable_hash(t, blobdata, res), "Failed to calculate tx prunable hash");
return res;
}
//---------------------------------------------------------------
@ -1030,16 +1051,13 @@ namespace cryptonote
transaction &tt = const_cast<transaction&>(t);
const blobdata blob = tx_to_blob(t);
const unsigned int unprunable_size = t.unprunable_size;
const unsigned int prefix_size = t.prefix_size;
// base rct
{
std::stringstream ss;
binary_archive<true> ba(ss);
const size_t inputs = t.vin.size();
const size_t outputs = t.vout.size();
bool r = tt.rct_signatures.serialize_rctsig_base(ba, inputs, outputs);
CHECK_AND_ASSERT_MES(r, false, "Failed to serialize rct signatures base");
cryptonote::get_blob_hash(ss.str(), hashes[1]);
}
CHECK_AND_ASSERT_MES(prefix_size <= unprunable_size && unprunable_size <= blob.size(), false, "Inconsistent transaction prefix, unprunable and blob sizes");
cryptonote::get_blob_hash(epee::span<const char>(blob.data() + prefix_size, unprunable_size - prefix_size), hashes[1]);
// prunable rct
if (t.rct_signatures.type == rct::RCTTypeNull)
@ -1048,7 +1066,7 @@ namespace cryptonote
}
else
{
CHECK_AND_ASSERT_MES(calculate_transaction_prunable_hash(t, hashes[2]), false, "Failed to get tx prunable hash");
CHECK_AND_ASSERT_MES(calculate_transaction_prunable_hash(t, &blob, hashes[2]), false, "Failed to get tx prunable hash");
}
// the tx hash is the hash of the 3 hashes