orphanTTL = 60 * time.Second
orphanExpireScanInterval = 30 * time.Second
+ txTTL = 1 * time.Hour
+ txExpireScanInterval = 20 * time.Minute
+
// ErrTransactionNotExist is the pre-defined error message
ErrTransactionNotExist = errors.New("transaction are not existed in the mempool")
// ErrPoolIsFull indicates the pool is full
eventDispatcher: dispatcher,
}
go tp.orphanExpireWorker()
+ go tp.txExpireWorker()
return tp
}
tp.errCache.Add(txHash, err)
}
-// ExpireOrphan expire all the orphans that before the input time range
-func (tp *TxPool) ExpireOrphan(now time.Time) {
+// expireOrphan expire all the orphans that before the input time range
+func (tp *TxPool) expireOrphan(now time.Time) {
tp.mtx.Lock()
defer tp.mtx.Unlock()
tp.mtx.Lock()
defer tp.mtx.Unlock()
+ if txD := tp.removeTransaction(txHash); txD != nil {
+ atomic.StoreInt64(&tp.lastUpdated, time.Now().Unix())
+ tp.eventDispatcher.Post(TxMsgEvent{TxMsg: &TxPoolMsg{TxDesc: txD, MsgType: MsgRemoveTx}})
+ log.WithFields(log.Fields{"module": logModule, "tx_id": txHash}).Debug("remove tx from mempool")
+ }
+}
+
+func (tp *TxPool) removeTransaction(txHash *bc.Hash) *TxDesc {
txD, ok := tp.pool[*txHash]
if !ok {
- return
+ return nil
}
for _, output := range txD.Tx.ResultIds {
delete(tp.utxo, *output)
}
delete(tp.pool, *txHash)
-
- atomic.StoreInt64(&tp.lastUpdated, time.Now().Unix())
- tp.eventDispatcher.Post(TxMsgEvent{TxMsg: &TxPoolMsg{TxDesc: txD, MsgType: MsgRemoveTx}})
- log.WithFields(log.Fields{"module": logModule, "tx_id": txHash}).Debug("remove tx from mempool")
+ return txD
}
// GetTransaction return the TxDesc by hash
return false
}
+//IsDust checks if a tx has zero output
func (tp *TxPool) IsDust(tx *types.Tx) bool {
return isTransactionZeroOutput(tx)
}
defer ticker.Stop()
for now := range ticker.C {
- tp.ExpireOrphan(now)
+ tp.expireOrphan(now)
}
}
}
delete(tp.orphans, *hash)
}
+
+func (tp *TxPool) txExpireWorker() {
+ ticker := time.NewTicker(txExpireScanInterval)
+ defer ticker.Stop()
+
+ for now := range ticker.C {
+ tp.expireTx(now)
+ }
+}
+
+// expireTx expires all the Txs that before the input time range
+func (tp *TxPool) expireTx(now time.Time) {
+ tp.mtx.Lock()
+ defer tp.mtx.Unlock()
+
+ cutOff := now.Add(-txTTL)
+ for hash, txD := range tp.pool {
+ if txD.Added.Before(cutOff) {
+ tp.removeTransaction(&hash)
+ }
+ }
+}