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mempool: swap checks in Add, fail fast

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Checking for duplicates is easier than checking the balance, so it should be
done first.
This commit is contained in:
Roman Khimov 2020-08-19 18:36:57 +03:00
parent e998c102ca
commit 0d8cc437fe
1 changed files with 4 additions and 4 deletions
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8
pkg/core/mempool/mem_pool.go
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@ -136,14 +136,14 @@ func (mp *Pool) Add(t *transaction.Transaction, fee Feer) error {
timeStamp: time.Now().UTC(),
}
mp.lock.Lock()
if !mp.checkTxConflicts(t, fee) {
mp.lock.Unlock()
return ErrConflict
}
if mp.containsKey(t.Hash()) {
mp.lock.Unlock()
return ErrDup
}
if !mp.checkTxConflicts(t, fee) {
mp.lock.Unlock()
return ErrConflict
}
mp.verifiedMap[t.Hash()] = pItem
// Insert into sorted array (from max to min, that could also be done