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Prevent adding duplicate transactions

This commit is contained in:
Eirik Ogilvie-Wigley 2019-10-09 12:13:01 -06:00
parent 2365ba7b97
commit 69a5ffe5d4
1 changed files with 5 additions and 0 deletions
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5
src/mempoollimit.cpp
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@ -83,6 +83,10 @@ TxWeight WeightedTxTree::getTotalWeight() const
void WeightedTxTree::add(const WeightedTxInfo& weightedTxInfo)
{
if (txIdToIndexMap.count(weightedTxInfo.txId) > 0) {
// This should not happen, but should be prevented nonetheless
return;
}
txIdAndWeights.push_back(weightedTxInfo);
childWeights.push_back(ZERO_WEIGHT);
txIdToIndexMap[weightedTxInfo.txId] = size;
@ -93,6 +97,7 @@ void WeightedTxTree::add(const WeightedTxInfo& weightedTxInfo)
void WeightedTxTree::remove(const uint256& txId)
{
if (txIdToIndexMap.find(txId) == txIdToIndexMap.end()) {
// Remove may be called multiple times for a given tx, so this is necessary
return;
}