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make threadpool a class object

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This commit is contained in:
CJ Cobb
2021-04-27 16:19:45 +00:00
parent 3be12dd4b4
commit 3aed708262
2 changed files with 80 additions and 49 deletions
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128
reporting/PostgresBackend.cpp
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@@ -411,61 +411,91 @@ std::vector<TransactionAndMetadata>
PostgresBackend::fetchTransactions(
std::vector<ripple::uint256> const& hashes) const
{
PgQuery pgQuery(pgPool_);
pgQuery("SET statement_timeout TO 10000");
std::stringstream sql;
bool first = true;
auto start = std::chrono::system_clock::now();
boost::asio::thread_pool pool{hashes.size()};
auto end = std::chrono::system_clock::now();
auto duration = ((end - start).count()) / 1000000000.0;
BOOST_LOG_TRIVIAL(info)
<< __func__ << " created threadpool. took " << std::to_string(duration);
std::vector<TransactionAndMetadata> results;
results.resize(hashes.size());
std::condition_variable cv;
std::mutex mtx;
std::atomic_uint numRemaining = hashes.size();
for (size_t i = 0; i < hashes.size(); ++i)
constexpr bool doAsync = true;
if (doAsync)
{
auto const& hash = hashes[i];
boost::asio::post([this,
&hash,
&results,
&numRemaining,
&cv,
&mtx,
i]() {
PgQuery pgQuery(pgPool_);
std::stringstream sql;
sql << "SELECT transaction,metadata,ledger_seq FROM transactions "
auto start = std::chrono::system_clock::now();
auto end = std::chrono::system_clock::now();
auto duration = ((end - start).count()) / 1000000000.0;
BOOST_LOG_TRIVIAL(info) << __func__ << " created threadpool. took "
<< std::to_string(duration);
results.resize(hashes.size());
std::condition_variable cv;
std::mutex mtx;
std::atomic_uint numRemaining = hashes.size();
for (size_t i = 0; i < hashes.size(); ++i)
{
auto const& hash = hashes[i];
boost::asio::post(
pool_, [this, &hash, &results, &numRemaining, &cv, &mtx, i]() {
BOOST_LOG_TRIVIAL(debug)
<< __func__ << " getting txn = " << i;
PgQuery pgQuery(pgPool_);
std::stringstream sql;
sql << "SELECT transaction,metadata,ledger_seq FROM "
"transactions "
"WHERE HASH = \'\\x"
<< ripple::strHex(hash) << "\'";
auto res = pgQuery(sql.str().data());
if (size_t numRows = checkResult(res, 3))
{
results[i] = {
res.asUnHexedBlob(0, 0),
res.asUnHexedBlob(0, 1),
res.asBigInt(0, 2)};
}
if (--numRemaining == 0)
{
std::unique_lock lck(mtx);
cv.notify_one();
}
});
}
std::unique_lock lck(mtx);
cv.wait(lck, [&numRemaining]() { return numRemaining == 0; });
auto end2 = std::chrono::system_clock::now();
duration = ((end2 - end).count()) / 1000000000.0;
BOOST_LOG_TRIVIAL(info)
<< __func__ << " fetched " << std::to_string(hashes.size())
<< " transactions with threadpool. took "
<< std::to_string(duration);
}
else
{
PgQuery pgQuery(pgPool_);
pgQuery("SET statement_timeout TO 10000");
std::stringstream sql;
for (size_t i = 0; i < hashes.size(); ++i)
{
auto const& hash = hashes[i];
sql << "SELECT transaction,metadata,ledger_seq FROM "
"transactions "
"WHERE HASH = \'\\x"
<< ripple::strHex(hash) << "\'";
auto res = pgQuery(sql.str().data());
if (size_t numRows = checkResult(res, 3))
{
results[i] = {
res.asUnHexedBlob(0, 0),
res.asUnHexedBlob(0, 1),
res.asBigInt(0, 2)};
}
if (--numRemaining == 0)
{
std::unique_lock lck(mtx);
cv.notify_one();
}
});
if (i + 1 < hashes.size())
sql << " UNION ALL ";
}
auto start = std::chrono::system_clock::now();
auto res = pgQuery(sql.str().data());
auto end = std::chrono::system_clock::now();
auto duration = ((end - start).count()) / 1000000000.0;
BOOST_LOG_TRIVIAL(info)
<< __func__ << " fetched " << std::to_string(hashes.size())
<< " transactions with union all. took "
<< std::to_string(duration);
if (size_t numRows = checkResult(res, 3))
{
for (size_t i = 0; i < numRows; ++i)
results.push_back(
{res.asUnHexedBlob(i, 0),
res.asUnHexedBlob(i, 1),
res.asBigInt(i, 2)});
}
}
std::unique_lock lck(mtx);
cv.wait(lck, [&numRemaining]() { return numRemaining == 0; });
auto end2 = std::chrono::system_clock::now();
duration = ((end2 - end).count()) / 1000000000.0;
BOOST_LOG_TRIVIAL(info)
<< __func__ << " fetched " << std::to_string(hashes.size())
<< " transactions. took " << std::to_string(duration);
return results;
} // namespace Backend
}
std::vector<Blob>
PostgresBackend::fetchLedgerObjects(