fix possible race condition

Author: i-norden

params/version.go

@@ -24,7 +24,7 @@ const (
 	VersionMajor = 1                 // Major version component of the current release
 	VersionMinor = 10                // Minor version component of the current release
 	VersionPatch = 15                // Patch version component of the current release
-	VersionMeta  = "statediff-3.0.0" // Version metadata to append to the version string
+	VersionMeta  = "statediff-3.0.1" // Version metadata to append to the version string
 )
 
 // Version holds the textual version string.

statediff/indexer/database/sql/indexer.go

@@ -150,8 +150,10 @@ func (sdi *StateDiffIndexer) PushBlock(block *types.Block, receipts types.Receip
 		dbtx:        tx,
 		// handle transaction commit or rollback for any return case
 		submit: func(self *BatchTx, err error) error {
-			close(self.quit)
-			close(self.iplds)
+			defer func() {
+				close(self.quit)
+				close(self.iplds)
+			}()
 			if p := recover(); p != nil {
 				rollback(sdi.ctx, tx)
 				panic(p)