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blockchain_db: allow getting output keys without commitment

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Since the commitment has to be calculated for non rct outputs,
it slows down a lot unnecessarily if we don't need it
This commit is contained in:
moneromooo-monero 2018-12-30 12:12:11 +00:00
parent 6285c43ffc
commit a6216d1ac2
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GPG Key ID: 686F07454D6CEFC3
4 changed files with 6 additions and 5 deletions
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2
src/blockchain_db/blockchain_db.h
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@ -1258,7 +1258,7 @@ public:
*
* @return the requested output data
*/
virtual output_data_t get_output_key(const uint64_t& amount, const uint64_t& index) const = 0;
virtual output_data_t get_output_key(const uint64_t& amount, const uint64_t& index, bool include_commitmemt = true) const = 0;
/**
* @brief gets an output's tx hash and index

5
src/blockchain_db/lmdb/db_lmdb.cpp
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@ -2536,7 +2536,7 @@ uint64_t BlockchainLMDB::get_num_outputs(const uint64_t& amount) const
return num_elems;
}
output_data_t BlockchainLMDB::get_output_key(const uint64_t& amount, const uint64_t& index) const
output_data_t BlockchainLMDB::get_output_key(const uint64_t& amount, const uint64_t& index, bool include_commitmemt) const
{
LOG_PRINT_L3("BlockchainLMDB::" << __func__);
check_open();
@ -2563,7 +2563,8 @@ output_data_t BlockchainLMDB::get_output_key(const uint64_t& amount, const uint6
{
const pre_rct_outkey *okp = (const pre_rct_outkey *)v.mv_data;
memcpy(&ret, &okp->data, sizeof(pre_rct_output_data_t));;
ret.commitment = rct::zeroCommit(amount);
if (include_commitmemt)
ret.commitment = rct::zeroCommit(amount);
}
TXN_POSTFIX_RDONLY();
return ret;

2
src/blockchain_db/lmdb/db_lmdb.h
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@ -242,7 +242,7 @@ public:
virtual uint64_t get_num_outputs(const uint64_t& amount) const;
virtual output_data_t get_output_key(const uint64_t& amount, const uint64_t& index) const;
virtual output_data_t get_output_key(const uint64_t& amount, const uint64_t& index, bool include_commitmemt) const;
virtual void get_output_key(const epee::span<const uint64_t> &amounts, const std::vector<uint64_t> &offsets, std::vector<output_data_t> &outputs, bool allow_partial = false) const;
virtual tx_out_index get_output_tx_and_index_from_global(const uint64_t& index) const;

2
tests/unit_tests/testdb.h
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@ -89,7 +89,7 @@ public:
virtual uint64_t get_tx_block_height(const crypto::hash& h) const { return 0; }
virtual uint64_t get_num_outputs(const uint64_t& amount) const { return 1; }
virtual uint64_t get_indexing_base() const { return 0; }
virtual cryptonote::output_data_t get_output_key(const uint64_t& amount, const uint64_t& index) const { return cryptonote::output_data_t(); }
virtual cryptonote::output_data_t get_output_key(const uint64_t& amount, const uint64_t& index, bool include_commitmemt) const { return cryptonote::output_data_t(); }
virtual cryptonote::tx_out_index get_output_tx_and_index_from_global(const uint64_t& index) const { return cryptonote::tx_out_index(); }
virtual cryptonote::tx_out_index get_output_tx_and_index(const uint64_t& amount, const uint64_t& index) const { return cryptonote::tx_out_index(); }
virtual void get_output_tx_and_index(const uint64_t& amount, const std::vector<uint64_t> &offsets, std::vector<cryptonote::tx_out_index> &indices) const {}