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Optimize vInv.reserve in SendMessages

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1. Don't call it while holding cs_invetory
2. Also take setInventoryTxToSend.size() into account
This commit is contained in:
Alexander Block 2020-04-07 06:47:16 +02:00
parent 027a852a77
commit 201f8eea1a
1 changed files with 5 additions and 1 deletions
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6
src/net_processing.cpp
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@ -3812,8 +3812,12 @@ bool PeerLogicValidation::SendMessages(CNode* pto, std::atomic<bool>& interruptM
//
std::vector<CInv> vInv;
{
size_t reserve = std::min<size_t>(pto->setInventoryTxToSend.size(), INVENTORY_BROADCAST_MAX_PER_1MB_BLOCK * MaxBlockSize(true) / 1000000);
reserve = std::max<size_t>(reserve, pto->vInventoryBlockToSend.size());
reserve = std::min<size_t>(reserve, MAX_INV_SZ);
vInv.reserve(reserve);
LOCK(pto->cs_inventory);
vInv.reserve(std::max<size_t>(pto->vInventoryBlockToSend.size(), INVENTORY_BROADCAST_MAX_PER_1MB_BLOCK * MaxBlockSize(true) / 1000000));
// Add blocks
for (const uint256& hash : pto->vInventoryBlockToSend) {