X-Git-Url: http://git.osdn.net/view?p=bytom%2Fvapor.git;a=blobdiff_plain;f=protocol%2Ftx.go;h=966b292fb41fc3c18ebca60a9da9ed334d96622e;hp=6eadc3acf27c360cc2b9a9642228e7213205dcdb;hb=23a183040a74bb684d3a036ef26b1d90c4af76b6;hpb=74cf033ce4ad67ac46b3cc6375582a13a5f38a0d

diff --git a/protocol/tx.go b/protocol/tx.go
index 6eadc3ac..966b292f 100644
--- a/protocol/tx.go
+++ b/protocol/tx.go
@@ -27,6 +27,17 @@ func (c *Chain) GetTransactionsUtxo(view *state.UtxoViewpoint, txs []*bc.Tx) err
 // per-transaction validation results and is consulted before
 // performing full validation.
 func (c *Chain) ValidateTx(tx *types.Tx) (bool, error) {
+	if c.hasSeenTx(tx) {
+		return false, nil
+	}
+
+	c.markTransactions(tx)
+
+	return c.validateTx(tx)
+}
+
+// validateTx validates the given transaction without checking duplication.
+func (c *Chain) validateTx(tx *types.Tx) (bool, error) {
 	if ok := c.txPool.HaveTransaction(&tx.ID); ok {
 		return false, c.txPool.GetErrCache(&tx.ID)
 	}