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mempool: reverse the order of sorted slice

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Chopping off the last element of the slice if way easier than doing it with
the first one.
This commit is contained in:
Roman Khimov 2020-02-05 17:46:19 +03:00
parent 794027a90b
commit 35183b6dba
1 changed files with 4 additions and 5 deletions
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9
pkg/core/mempool/mem_pool.go
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@ -144,7 +144,7 @@ func (mp *Pool) Add(t *transaction.Transaction, fee Feer) error {
mp.verifiedMap[t.Hash()] = pItem
mp.verifiedTxes = append(mp.verifiedTxes, pItem)
sort.Sort(mp.verifiedTxes)
sort.Sort(sort.Reverse(mp.verifiedTxes))
mp.lock.Unlock()
if mp.Count() > mp.capacity {
@ -201,13 +201,12 @@ func (mp *Pool) RemoveOverCapacity() {
// minItem belongs to the mp.sortedLowPrioTxn slice.
// The corresponding unsorted pool is is mp.unsortedTxn.
delete(mp.verifiedMap, minItem.txn.Hash())
mp.verifiedTxes = append(mp.verifiedTxes[:0], mp.verifiedTxes[1:]...)
mp.verifiedTxes = mp.verifiedTxes[:len(mp.verifiedTxes)-1]
} else {
// minItem belongs to the mp.unverifiedSortedLowPrioTxn slice.
// The corresponding unsorted pool is is mp.unverifiedTxn.
delete(mp.unverifiedMap, minItem.txn.Hash())
mp.unverifiedTxes = append(mp.unverifiedTxes[:0], mp.unverifiedTxes[1:]...)
mp.unverifiedTxes = mp.unverifiedTxes[:len(mp.unverifiedTxes)-1]
}
updateMempoolMetrics(len(mp.verifiedTxes), len(mp.unverifiedTxes))
mp.lock.Unlock()
@ -265,7 +264,7 @@ func min(sortedPool items) *item {
if len(sortedPool) == 0 {
return nil
}
return sortedPool[0]
return sortedPool[len(sortedPool)-1]
}
// GetVerifiedTransactions returns a slice of Input from all the transactions in the memory pool