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Avoid dispatching multiple fetch pack threads

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2018-04-04 20:36:32 +08:00
committed by Nik Bougalis
parent b0092aee24
commit 4dcb3c9199
2 changed files with 12 additions and 7 deletions
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2
src/ripple/app/ledger/LedgerMaster.h
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@@ -337,6 +337,8 @@ private:
int mPathFindThread {0}; // Pathfinder jobs dispatched
bool mPathFindNewRequest {false};
std::atomic_flag mGotFetchPackThread = ATOMIC_FLAG_INIT; // GotFetchPack jobs dispatched
std::atomic <std::uint32_t> mPubLedgerClose {0};
std::atomic <LedgerIndex> mPubLedgerSeq {0};
std::atomic <std::uint32_t> mValidLedgerSign {0};

17
src/ripple/app/ledger/impl/LedgerMaster.cpp
View File

@@ -1790,13 +1790,16 @@ LedgerMaster::gotFetchPack (
bool progress,
std::uint32_t seq)
{
// FIXME: Calling this function more than once will result in
// InboundLedgers::gotFetchPack being called more than once
// which is expensive. A flag should track whether we've already dispatched
app_.getJobQueue().addJob (
jtLEDGER_DATA, "gotFetchPack",
[&] (Job&) { app_.getInboundLedgers().gotFetchPack(); });
if (!mGotFetchPackThread.test_and_set(std::memory_order_acquire))
{
app_.getJobQueue().addJob (
jtLEDGER_DATA, "gotFetchPack",
[&] (Job&)
{
app_.getInboundLedgers().gotFetchPack();
mGotFetchPackThread.clear(std::memory_order_release);
});
}
}
void