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Make database reads async

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* yield on db read using asio
* PostgresBackend fetches multiple transactions or objects in parallel
This commit is contained in:
natenichols
2022-02-07 07:00:15 -06:00
committed by CJ Cobb
parent 7c2bef70bc
commit d016253264
50 changed files with 3612 additions and 2593 deletions
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22
src/subscriptions/SubscriptionManager.cpp
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@@ -118,17 +118,20 @@ getLedgerPubMessage(
}
boost::json::object
SubscriptionManager::subLedger(std::shared_ptr<WsBase>& session)
SubscriptionManager::subLedger(
boost::asio::yield_context& yield,
std::shared_ptr<WsBase>& session)
{
ledgerSubscribers_.subscribe(session);
auto ledgerRange = backend_->fetchLedgerRange();
assert(ledgerRange);
auto lgrInfo = backend_->fetchLedgerBySequence(ledgerRange->maxSequence);
auto lgrInfo =
backend_->fetchLedgerBySequence(ledgerRange->maxSequence, yield);
assert(lgrInfo);
std::optional<ripple::Fees> fees;
fees = backend_->fetchFees(lgrInfo->seq);
fees = backend_->fetchFees(lgrInfo->seq, yield);
assert(fees);
std::string range = std::to_string(ledgerRange->minSequence) + "-" +
@@ -232,10 +235,15 @@ SubscriptionManager::pubTransaction(
auto amount = tx->getFieldAmount(ripple::sfTakerGets);
if (account != amount.issue().account)
{
auto ownerFunds = Backend::retryOnTimeout([&]() {
return RPC::accountFunds(
*backend_, lgrInfo.seq, amount, account);
});
ripple::STAmount ownerFunds;
auto fetchFundsSynchronous = [&]() {
Backend::synchronous([&](boost::asio::yield_context yield) {
ownerFunds = RPC::accountFunds(
*backend_, lgrInfo.seq, amount, account, yield);
});
};
Backend::retryOnTimeout(fetchFundsSynchronous);
pubObj["transaction"].as_object()["owner_funds"] =
ownerFunds.getText();